Endangered Species Act

Environmentalism in the Rear-View Mirror

One year ago, less than a month after Donald Trump was re-elected President, I announced on Conservation Sense and Nonsense my intention to “hunker down and watch the changes [in the federal government] play out.” Although I predicted major changes in federal public policies, I did not foresee the scale and speed of changes in environmental policies that we have witnessed in the past year. The uncomfortable reality is that some of what is being destroyed deserved to be destroyed, but at the expense of some valuable environmental protections.

In describing the changes we have witnessed, I will focus primarily on environmental issues in the following main categories. Please keep in mind that changes in environmental policies are but a small fraction of the changes that have occurred in all aspects of American life and global geopolitics, e.g., education, public health, arts and entertainment, architecture, science, economics, immigration, media sources, judicial system, disaster relief, social safety net, foreign aid, tariffs, etc.

Policy intended to protect endangered plants and animals, included “loss of habitat” as one of the harms that recovery plans must mitigate. “Harm” is now defined by the Endangered Species Act narrowly as only harm directly to the endangered plant or animal. The Trump administration has also proposed significant new limitations on the application of the Endangered Species Act that will remove obstacles to resource extraction that will have a negative impact on endangered wildlife.
Federal agencies that were responsible for protecting the environment in the past have been defunded and their staff drastically reduced. The President calls them “Democrat agencies.” National parks, wildlife refuges and marine sanctuaries have lost both their funding and much of their staff. Places that were protected from unfettered resource extraction, no longer are.
Manufacturers of pesticides are lobbying Congress to prevent product liability lawsuits filed by people who have been harmed by pesticides. Congress is trying to prevent states from regulating the use of pesticides. Supporters of Robert F. Kennedy, Jr. are disappointed that Health and Human Services will not attempt to limit the use of pesticides in the US.
Laws and agency regulations that enabled the protection of the environment, the proverbial teeth in environmental policies, are being repealed:
- USFWS is in the process or rescinding the Roadless Rule, which prohibited new road construction in 60 million acres of national forests since 2001, enabling the expansion of timber operations.
- Bureau of Land Management is rescinding a policy that included conservation as one of many official uses of BLM land.
- Policy intended to protect endangered plants and animals, included “loss of habitat” as one of the harms that recovery plans must mitigate. “Harm” is now defined by the Endangered Species Act narrowly as only harm directly to the endangered plant or animal. The Trump administration has also proposed significant new limitations on the application of the Endangered Species Act that will remove obstacles to resource extraction that will have a negative impact on endangered wildlife.
- The Trump administration has proposed a significant limit on the EPA’s authority to limit pollution in wetlands, rivers and other bodies of water across the country: “These changes could strip federal protections from up to 55 million acres of wetlands, or about 85 percent of all wetlands nationwide, according to the Natural Resources Defense Council…”
- All efforts to reduce greenhouse gas emissions causing climate change have been abandoned. The President made good on his campaign promise to “drill, baby drill.” New commitments have been made to increase oil and gas extraction, as well as coal mining, off-shore drilling, and seabed mining. Corresponding new policies have eliminated commitments to develop renewable energy sources, such as wind and solar. The Environmental Protection Agency is promising to erase the endangerment finding that underpins climate regulations nationwide. The endangerment finding established that greenhouse gases endanger public health and must therefore be regulated to protect the public.

The Trump administration has left the international Paris Agreement, the legally binding treaty adopted in 2015 to limit global warming to below 2 degrees Celsius. The US was not represented at the November 2025 meeting of the UN Conference of the Parties (COP30) to the agreement in Brazil, but the US actively campaigned against the new commitment on the agenda to limit pollution from cargo ships by using fines. According to the New York Times, “…the United States launched a pressure campaign that officials around the world have called extraordinary, even by the standards of the Trump administration’s combativeness, according to nine diplomats on its receiving end.” US diplomats and officials were successful in threatening countries with loss of US port access and other onerous penalties if they voted for the proposal. The Trump administration hasn’t just dropped out of the Paris Agreement. It is also actively engaged in preventing other countries from reducing greenhouse gas emissions that cause climate change. COP30 ended without any new commitments to reduce the sources of greenhouse gas emissions, or even explicit mention of fossil fuels as the primary greenhouse gas.

America Accommodates

Many of these changes have been delayed by legal challenges, but until appeals reach the Supreme Court, the final verdict on most issues is not known at this time. However, the Supreme Court has signaled their intentions with many emergency orders, also known as the shadow docket. These decisions have upheld most of the federal government’s actions, without providing any legal reasoning for doing so. These preliminary decisions foretell the ultimate victory of the actions of the Trump administration.

Other segments of American society are contributing to the control the President has over the implementation of his agenda. At his request, Congress has completely defunded National Public Radio and the Public Broadcasting Service. They are scrambling to find other sources of revenue, while cutting programs and staff as well as closing stations. Associated Press was banned from White House press briefings when they refused to call the Gulf of Mexico the Gulf of America, as renamed by President Trump. Legal challenges have not restored AP’s access to White House press briefings.

Mainstream media has paid multi-million dollar settlements to resolve defamation lawsuits (ABC and CBS) brought by President Trump over perceived slights. One major network (CBS) has changed ownership and is now owned by Trump supporters (Larry & David Ellison). The Department of Defense (now calling itself the Department of War) has restricted access of the press to department staff and now requires department approval of press releases prior to publication. Most members of the Pentagon press corps refused to agree to these restrictions and have left their offices in the Pentagon. Self-censorship is a more insidious threat because the public no longer knows when the media is pulling its punches to avoid retribution, which is the President’s modus operandi.

The legal profession has also been brought to its knees by the President’s threats of punishment if they participate in lawsuits that try to prevent the implementation of the administration’s policies. Many major law practices have been forced to provide pro bono legal services for President Trump after being threatened with access restrictions to the judicial system. Major law practices are refusing to represent plaintiffs who are trying to protect themselves from government prosecution, hoping to stay out of the line of fire.

California Responds

The same day that Americans re-elected Donald Trump in November 2024, California voters passed Proposition 4 , the $10 billion bond that funds climate change mitigation and ecological restoration in California. California’s bond funding will help to compensate for the loss of federal funding of ecological and climate mitigation projects in California. California Natural Resources Agency reported the cancellation of federal funding for these projects in California:

Source: California Natural Resources Agency, July 2025

Does California have enough money to compensate for the loss of federal funding of climate change mitigation and ecological restoration in California? I don’t know, but I do know that federal funding is also being lost for many other purposes that are important to Californians, such as subsidies for health insurance and food assistance needed by many Californians. Some municipalities are responding by raising sales and property taxes to backfill the loss of federal funding in many sectors of the economy. While federal taxes are being cut, California’s taxes may rise.

Meanwhile, California is challenged by related issues such as the need to build more housing in order to reduce the cost and house our growing homeless population. In July 2025, California responded to that issue by revising the California Environmental Quality Act (CEQA), which will remove many obstacles to building new housing and allow more aggressive fire hazard mitigation.

The cost of gas in California has been consistently higher than in most states because of voters’ desire for clean air. Regulations have made drilling for and refining oil in California costlier than in other states, which makes gas more expensive for consumers. Refineries have responded to California’s restrictive regulations by leaving the state, which reduces supply, raises prices further and is expected to restrict availability of fuel. California’s Senate Bill 237, signed into law in September 2025, addressed these concerns by streamlining approval of drilling permits, including idle pipelines, in an “environmentally responsible and safe manner.”

In other words, California has been forced to adapt to new economic and environmental realities. At the same time, California is aggressively fighting back. As of October 1^st, California has filed 46 lawsuits against the 2^nd Trump administration, “contesting the Trump administration’s executive orders, agency decisions and even recent laws that Trump himself signed.”

Americans Shrug

Composite opinion polls reported a persistent negative approval rating of 11% for the Trump presidency until the government shutdown in October, when the approval rating dropped to negative 15% before returning to negative 11% when the government re-opened. Over 40% of American voters still approve of the Trump presidency. Many voters have made up their mind and are not responsive to the daily onslaught of alarming information. I understand and am sympathetic to the public’s dilemma, summarized in a recent social media post: “My desire to be well informed is presently at odds with my desire to remain sane.”

For perspective, consider that President Biden’s composite approval poll on July 6, 2024 was negative 19.3%, just 15 days before Biden dropped out of the presidential race on July 21, 2024.

The demonstrations I have attended are another window into the mood of the American public. The NO Kings demonstration on June 14, 2025 is said to have drawn 5 million people. The second NO Kings demonstration on October 18^th claims to have drawn 7 million people. Although these seem impressive numbers, they don’t add up to a change-making revolt. The lack of young people participating in these demonstrations is dispiriting. The future is in their hands, yet their commitment to democracy is lukewarm compared to my generation, the boomer generation that still feels a strong commitment to the peace and prosperity that democracy has delivered to us.

On the other hand, Democrats aren’t dead yet. In November 2025, moderate Democrats won governorships in New Jersey and Virginia and a Democratic Socialist won the mayoral election in New York City. In response to Republican gerrymandering of congressional districts in Texas, 64% of Californians voted to gerrymander congressional districts in favor of Democratic candidates. A recent Marist poll indicated that registered voters in the US plan to vote for Democratic candidates for congressional seats in 2026 by a margin of 14%.

Changes in the elected leadership of the Bay Area chapters of the Sierra Club are an indication of a change in the public’s commitment to the environment. The San Francisco Bay Area Chapter is now led by activists who want more housing and more active recreational opportunities. The old guard, who were committed to restricting recreational access in favor of native plant restorations in public parks, has been replaced. The Lomo Prieta Chapter, which represents the South Bay, is now undergoing a similar transition to new leadership with new priorities.

Changes in the leadership of the San Francisco Bay Area chapters of the Sierra Club are symptomatic of the Club’s much broader decline on a national scale. According to the New York Times, the Club has lost 60% of the 4 million members it had in 2019. The Times attributes this loss of support to the change of the Club’s advocacy focus from environmental issues, most prominently climate change, to progressive social justice issues such as racial justice, gay rights, labor rights, and immigration rights. In 2019, one of the Board Directors objected to the proposed budget, but was voted down: “I said, ‘We have two F.T.E.s devoted to Trump’s war on the Arctic refuge, and we have 108 going to D.E.I., and I don’t think we have our priorities straight,’” Mr. Dougherty said.

Finally, wealthy American philanthropists are providing clues of a fundamental change in the political climate in America. Bill Gates, former owner of Microsoft and supporter of global health initiatives, recently announced that it is time for a “strategic pivot” in the global climate fight from focusing on limiting rising temperatures to fighting poverty and preventing disease. Gates still believes climate change is a serious problem, but it won’t be the end of civilization because he thinks scientific innovation will contain it. Unfortunately, federal support for finding such scientific innovations has been withdrawn. Gates’ message seems to be that we aren’t able to stop climate change, so we must cope with it. It’s another way of accommodating the environmental policies of the Trump administration.

Looking Ahead

I am deeply troubled by the many threats to America’s treasured democracy. However, many of the changes in environmental policies in the past year are aligned with the mission of Conservation Sense and Nonsense. Since its inception in 2010, the mission of Conservation Sense and Nonsense has been the preservation of our predominantly non-native urban forest, opposition to the use of pesticides on public lands and advocacy for mitigating the causes of climate change. Some of the changes in environmental policy in the past year are consistent with those goals:

Many projects that use pesticides and kill harmless animals and vegetation have been defunded by the federal government. The State of California is trying to compensate for the loss with state funding, but its ability to do so will be challenged by many other new demands on state resources, such as subsidies for health care and food.

When wildlife refuges and marine sanctuaries lost much of their funding and staff, many of their projects were abandoned. Many of those projects may have been beneficial, but the plans to aerially drop rodenticides on the Farallon Islands to kill harmless mice is an example of a project that is better off dead.

Prevailing public opinion that native plants and animals are superior and the corresponding belief that non-natives are a threat to them is unlikely to change in the near-term. I do not begrudge the horticultural preferences of home gardeners. However, native plant advocates will have limited ability to demand that public land managers eradicate non-native plants if there is no public money available to fund landscape-scale “restorations.”
As public money for ecological “restorations” on public land dries up, the “restoration” industry and the jobs it creates will probably dwindle over time. As economic interests in “restoration” evaporate, the advocacy that supports it is likely to as well. College students are likely to make other educational choices with more promising career prospects, which will further reduce the labor force engaged in “restorations.”
When forest “restoration” projects that involve clear-cutting or removing healthy trees are defunded, existing carbon storage is preserved. Every mature tree—native or non-native—sequesters carbon at a time when we need every available carbon sink to compensate for the loss of limits on greenhouse gas emissions causing climate change.
Climate change will accelerate as we abandon our efforts to reduce greenhouse gas emissions that cause climate change. The landscape that survives the changed climate will be best adapted to the changed environment. When the climate changes, vegetation changes or dies. No amount of human intervention can alter that ultimate reality because nature always bats last.

In 2026, Conservation Sense and Nonsense will continue to report major developments relevant to my mission. In other words, I will continue to “hunker down and watch it play out.” Guest posts consistent with my mission and civil comments, both pro and con, are always welcome here. Thank you for your readership.

Happy Holidays and best wishes for a more peaceful year in 2026.

For US Fish & Wildlife Service “Management” Means Killing

“It makes me sad, but range expansions are a part of natural systems. We just happened to be watching when one occurred. Even if [we’re to blame], we’re probably going to have to live with it.”
Eric Forsman, US Forest Service

US Fish & Wildlife Service (USFWS) proposes to kill 470,000 barred owls in the next 30 years in an effort to save the northern spotted owl (NSO) and a closely related sub-species in California. The deadline for making a comment on this proposal is January 16, 2024. Instructions for making comments are available HERE.

Today, I will tell you about this proposal, how it came about, and why I am opposed to the proposal. I provide links to the source documents so you can read them yourself. I hope this information will help you reach your own conclusions about the plan and submit a public comment.

USFWS Barred Owl Management Strategy

The purpose of the Barred Owl Management Strategy is protection for the dwindling population of northern spotted owls (NSO) in the Pacific Northwest (Washington, Oregon, and Northern California). NSOs were classified as a threatened species by USFWS in 1990. The first Recovery Plan for NSO, published in 2011, identified habitat loss and barred owls as the primary threats to NSOs. The most recent Recovery Plan has added “past habitat loss, continued timber harvest, and wildfire” to the list of threats to NSOs.

The Barred Owl Management Strategy also proposes “management” of barred owls to protect the California spotted owl (CSO), which is a subspecies of NSOs. Although endangered status for CSO was proposed in February 2023, endangered status has not been granted. Yet, USFWS proposes to extend the same lethal removal measures used to protect NSOs to CSOs. In addition to the threats to NSOs, California spotted owls are also threatened by fragmented habitat and forest mortality caused by drought and correlated disease, which have killed over 300 million conifers in California in the past 10 years.

*Source: Barred Owl Management Strategy*

Despite the many threats to spotted owls, the Management Strategy intended to protect them addresses only one of those threats: barred owls. It makes no proposals for improving or expanding habitat or addressing the impact of climate change on forests.

The Barred Owl Management Strategy is a voluntary plan. Federal agencies in spotted owl territory (Bureau of Land Management, US Forest Service, and National Park Service) will be “encouraged” to implement the plan. If state, commercial, private property, and tribal land owners choose to participate they will be granted the same “take” permits required by the Migratory Bird Treaty Act that federal land managers will be granted, so long as they agree to follow the protocol for “removing” barred owls from their properties.

The word “removal” in the context of the Management Strategy means “lethal removal.” The protocol requires that barred owls be found by playing a recording of their distinctive call (described as “who cooks for you?”) and shooting the owl as it flies toward the call and the shooter. If guns are not allowed where barred owls are found, they must be captured and euthanized. Hybrids of barred owls and spotted owls will also be killed, despite the fact that accurately identifying hybrids is considered difficult, particularly in subsequent generations.

Because the Management Strategy is not mandatory, the total number of birds that will be killed can only be estimated. If all property managers choose to implement the Strategy, approximately 470,000 barred owls would be killed in the next 30 years. Although the Strategy covers only a 30 year time frame, “barred owl management will be required at same level for the long term” because “Their populations will continue to produce young that can disperse within and beyond the current range of barred owls.” (1) The estimated current population of barred owls in study areas of the Management Strategy is only 102,000. Clearly the lethal removal of barred owls is not expected to keep pace with the reproductive success of barred owls. The killing of barred owls will continue forever, although there is no expectation that they will be eliminated.

*Source: Draft Environmental Impact Statement for Barred Owl Management Strategy*

How were barred owls selected as the scapegoat?

When northern spotted owls were designated as “threatened” in 1990 it triggered the legal protections conferred by the Endangered Species Act. In 1994, the Forest Service and the Bureau of Land Management published the EIS for the Northwest Forest Plan. It created 24 million acres of reserve areas where logging was prohibited to preserve spotted owl habitat. The reserve areas protected approximately 80 percent of the remaining old growth forests in the Pacific Northwest from timber harvesting. Obviously, the plan had a negative impact on the timber industry and those who were employed by the industry. Between 1980 and 1998, 23% of logging jobs were lost, triggering the Timber Wars.

The rate of decline of spotted owl populations in the Pacific Northwest decreased when most logging in old-growth forest was stopped by the Northwest Forest Plan, but began to accelerate again in about 2008. USFWS attributes that increase in the rate of population decline to competition from barred owls and that theory is supported by several studies.

Barred Owl. GNU Free Documentation License

Barred owls are native to North America. They have been migrating from their historic range in the north and south east of the US to the west coast of North America since about 1900. Barred owls were first seen on the west coast of North America in British Columbia, Canada around 1959. They were first documented in Washington in the 1970s and have continued moving south from there.

Barred owls have successfully competed with spotted owls in their expanding territory because they are larger than spotted owls, they eat a wider variety of prey, they have greater reproductive success, and they are able to live in forests where spotted owls cannot. Spotted owls are restricted to old-growth forests with large trees and dense canopies, while barred owls often live in second-growth (previously logged) forests and even wooded urban areas.

The Management Strategy speculates that the omnivorous diet of barred owls will devastate the food webs in the new territory they occupy, although the Strategy offers no evidence to support that theory. In fact, as barred owls expanded their territory through the Canadian boreal forest, such devastation was not reported. Barred owls are not considered “invasive” in Canada.

The impact of barred owls on spotted owls was first observed by Lowell Diller, a wildlife biologist who worked as a consultant to Green Diamond Resource Co., a logging company managing timberland in Humboldt and Del Norte counties in Northern California. Mr. Diller was also an adjunct professor in the Department of Wildlife at Humboldt State University.

Owls, including barred owls, are protected by the Migratory Bird Treaty Act. Mr. Diller applied for permits to kill barred owls on the property of Green Diamond Resource Co. as an experiment to determine the impact of barred owls on spotted owls. He described his project in an article in the Marin Independent Journal: “In 2009,…Diller set aside patches of timberland to remove barred owls. In other patches, he did nothing. After four years, he would see how northern spotted owl numbers differed in the areas with and without barred owls…The study is the first to prove his treatment works.” To be clear, his “treatment” was to shoot barred owls. Mr. Diller also described how upsetting it was to kill birds.

Green Diamond applied for permits and has continued to kill barred owls on its property. That commitment has ensured that Green Diamond’s current rate of logging can continue. The Green Diamond spokesman explained: “’When you can protect and sustain a business and jobs and also conserve the northern spotted owl,’ he said, ‘why not do it.’” (Marin Independent Journal)

Sierra Pacific Industries is also killing barred owls on its property. Sierra Pacific Industries in Shasta County is the largest private land holder in California and the second largest lumber producer in America.

On the basis of the success of Diller’s study, USFWS approved a pilot project to kill barred owls in other places where spotted owls live. The pilot project killed about 3,000 barred owls. When the project was completed in 2021, they reported, “The removal of barred owls had a strong, positive effect on the survival of northern spotted owls and a positive, but weaker, effect on recruitment of spotted owls.” (2) The Barred Owl Management Strategy is based on the success of the pilot study.

In other words, killing barred owls has enabled the timber industry in Northern California to continue their logging operations. It has also removed the pressure to expand reserve areas to protect spotted owls, even though many scientists believe such expansion would be more effective than killing barred owls to save spotted owls: “’The bottom line is that extinction rates went down when the amount of habitat went up,’ U.S. Geological Survey biologist Katie Dugger, lead author of the 2015 demographic study, said in a presentation on the findings last fall. ‘Spotted Owls cannot exist without old-growth forest. And now we’re talking about two species trying to use the same space, so in fact we need more of it.’” (3)

Specific Flaws in Barred Owl Management Strategy

The Barred Owl Management Strategy is based on several outdated notions about nature that have been cast in the concrete of American law. The Endangered Species Act is based on assumptions about nature that were conventional wisdom at the time the law was passed 50 years ago, in 1973. Evolution was considered a series of events that occurred in the distant past and is no longer actively changing plants and animals. At the time the ESA was passed, evolution was not believed to occur within a time frame observable by humans. Nature was perceived as reaching an “equilibrium state” that was stable over long periods of time. Early conservation efforts were therefore based on the assumption that once achieved, an equilibrium state could be sustained if left undisturbed in nature preserves. (4)

We now know that these assumptions are mistaken. In the past 50 years, climate change and advances in paleontology have taught us that nature is inherently dynamic and we are usually powerless to stop it from changing even when we try. When a law is designed to control nature, we should expect some conflict between static law and dynamic nature. Fifty years after the Endangered Species Act was passed, that conflict is becoming progressively more apparent and problematic.

These are the specific flaws in the Barred Owl Management Strategy that are the result of mistaken assumptions about nature:

Barred owls should not be considered “invasive” on the west coast of the US because the expansion of its range is a natural phenomenon that cannot and should not be stopped.

USFWS designates barred owls on the west coast as “invasive” by fabricating a story about the route barred owls took from their historic range in the east to their expanded range in the west that is not consistent with the facts. Although USFWS admits that the route that facilitated expansion is “not well documented,” they claim there is evidence of anthropogenic change across the Midwestern Prairie that supports that specific route: “…the historical lack of trees in the Great Plains acted as a barrier to the range expansion and that increases in forest caused by the anthropogenic impact of European settlement enabled the westward extension of the barred owl range. These include anthropogenic impacts such as fire exclusion and suppression, bison and beaver extirpation, deer and elk overhunting, establishment of riparian forests, and extensive planting of trees and shelterbelts in the northern Great Plains…” (2) Although that is an accurate description of anthropogenic changes in the Midwestern Prairie, it is irrelevant to the expansion of the range of barred owls, because that wasn’t the route they took to the west coast.

The legal definition of invasive species enables USFWS to designate barred owls on the west coast as “invasive” based on their claim that the expansion route was through the American Midwest as a result of anthropogenic change. If non-indigenous humans are considered the cause of a change in ranges of plants and animals, the species is considered “invasive” where it did not exist prior to the arrival of Europeans. Labelling any plant or animal “invasive” makes it a target for eradication. However, the theory of a midwestern expansion route for barred owls is not consistent with the facts:

This map clearly shows that the route used by barred owls to expand their range to the west coast was through the boreal forests of Canada, which were not the result of anthropogenic change. The boreal forests of Canada have existed since the Ice Age ended 10,000 years ago. The map does not show the historic or current existence of barred owls in the American Midwest.

The expansion route of barred owls to the west coast through Canadian forests is also consistent with the record of their arrival on the west coast. They were seen first in the west in 1959 in British Columbia, Canada, at the northern edge of their current range. They were first seen in the US in Washington in the 1970s. Their range expansion continues to the south. This sequence of events is not consistent with the claim that they arrived on the west coast via the American Midwest.

Claiming that barred owls are “invasive” enables USFWS to justify their extermination, as many of their eradication projects do: “Yes, wildlife removal has been used as a management tool by many agencies across the country to control invasive species such as invasive carp, Burmese python, feral hogs, rats, mongoose, and nutria. Invasive species can thrive in areas where they do not naturally occur.” (1) That list of animals being killed by USFWS is far from complete.

This is not a trivial matter. Climate change requires that plants and animals move to find the conditions needed for their survival. Preventing the migration of plants and animals as the climate and the environment change will doom them to extinction. Designating barred owls on the west coast “invasive” has dangerous implications for many plants and animals that must move to survive in a rapidly changing climate. The Management Strategy should not set this dangerous precedent.

Interbreeding of spotted owls and barred owls is a natural phenomenon that cannot and should not be stopped. Hybrids of spotted and barred owls should not be killed.

Hybridization is not only common, it can result in the creation of new species more rapidly than other forces of evolution, such as mutation and natural selection: “Hybridisation also offers shortcuts on the long march to speciation that do not depend on natural selection at all.” (5)

More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. Yet there are currently around 8.7 million species of eukaryote (organisms whose cells have a membrane-bound nucleus) globally. (Wikipedia) Biodiversity on Earth has increased partly because of hybridization, which has often enabled adaptation to changed environmental conditions.

There are many important examples of hybridization among animal species, most notably the history of hybridization of our species, Homo sapiens. Humans are now the sole surviving species of genus Homo. Our genome contains the relicts of the genes of other members of our genus that are now extinct, which indicates hybridization with other hominoid species. The modern human genome contains 1-4% of Neanderthal genes. (5)

There are also many examples of hybridization of plant species that contributed to biodiversity. In a recently published study of the evolution of oaks, scientists traced the 56 million year evolutionary history of roughly 435 species of oak across 5 continents where they are found today. Hybridization was instrumental in the formation of oak species and the ability of oaks to survive in different climate conditions. The article in Scientific American about the genetic study of oak species concludes: “A firm grasp of when, where and how oaks came to be so diverse is crucial to understanding how oaks will resist and adapt to rapidly changing environments. Oaks migrated rapidly as continental glaciers receded starting around 20,000 years ago, and hybridization between species appears to have been key to their rapid response. The insights we can gain from elucidating the adaptive benefits of gene flow are critical to predicting how resilient oaks may be as climate change exposes them to fungal and insect diseases with which they did not evolve.”

The bias against hybrids is a reflection of nativist ideology in the natural world. Nativists call hybridization “genetic pollution.” Unfortunately, hybridization is seen by nativists as the loss of a “pure” native species rather than the potential for a new species that is better adapted to changing environmental conditions. The proposal to kill hybrids of barred and spotted owls is a symptom of the nativist bias that is typical of most public agencies.

Barred and spotted owls are closely related. They are in the same genus, just as Neanderthals and Homo sapiens were in the same genus. Their interbreeding is both predictable and potentially beneficial to spotted owls because barred owls are better adapted to current conditions. The hybrid has the potential to produce a new species that is better adapted to compromised forest conditions than the spotted owl. Although there is risk in hybrids, in the case of spotted owls the risk is worth taking because many scientists predict that the northern spotted owl will soon be extinct. Hybridization may be more helpful to the spotted owl species than killing barred owls.

The Barred Owl Management Strategy should not be extended to California spotted owls.

The Barred Owl Management Strategy depends on the legal protections of the Endangered Species Act. Both barred owls and spotted owls are protected by the Migratory Bird Treaty Act. Therefore, “take” permits must be granted to kill barred owls. The protected status of northern spotted owls justifies take permits, but should not be extended to California spotted owls (CSO) that are not legally protected. Issuing take permits to kill barred owls to save California spotted owls makes a mockery of both the ESA and the Migratory Bird Treaty Act. It implies that USFWS can find loopholes in environmental laws intended to protect nature, whenever they wish. It undermines the public’s faith in government when public agencies are perceived as arbitrary and capricious.

Killing barred owls in CSO territory cannot be justified because there are few barred owls in their territory and threats to the CSO population are unrelated to the existence of a few barred owls. (See map of barred owl distribution in California below.) Shooting barred owls will not stop the wildfires, droughts and diseases killing their habitat. The proposed Management Strategy is irrelevant to the survival of CSO.

*Source:* *Spotted Owl Observation Database, California Department Fish and Wildlife, 2019*

There is no reason to kill barred owls in Marin and Sonoma counties in the San Francisco Bay Area because the population of Northern Spotted Owls is stable and there are very few barred owls.

The Marin/Sonoma County Management Zone designated by the Management Strategy includes all lands within the named counties. Conditions in Marin and Sonoma County are substantially different from the rest of the northern spotted owl range. This is the only portion of the northern spotted owl range where barred owls are very uncommon.

The recently completed survey of northern spotted owls in Marin County reports that the population is stable. The survey found nesting pairs of NSOs in all 48 inventory sites. A small decline in nesting success was not statistically significant. Two unpaired barred owls were detected on or near Marin County Property or Marin Watershed Property in 2023. One was removed, the other was not detected a second time. (6)

*Source:* Northern Spotted Owl Monitoring on Marin County Parks and Marin Municipal Water Department lands, 2023 Report, Point Blue Conservation.

Despite the lack of evidence that northern spotted owls are threatened by barred owls in Marin County, the Barred Owl Management Strategy considers it the highest priority to kill the few transitory barred owls detected in Marin County. This is unnecessary overkill that should be removed from the Management Strategy. It contributes to the public’s perception that the strategy of USFWS is extreme and inconsistent with environmental laws that protect nature.

In conclusion, the Barred Owl Management Strategy is a reflection of the extreme nativist bias of USFWS. Like many of their projects, USFWS has selected an animal scapegoat for the declining population of northern spotted owls that are not well adapted to changed forest conditions. Selecting an animal scapegoat enables timber companies to continue logging and it is an easy way to avoid addressing the much more complex reasons for challenges to northern spotted owls. For example, killing barred owls won’t do anything to reduce the greenhouse gases causing climate change or restore logged or burned forests. The Barred Owl Management Strategy will employ an army of snipers, but is unlikely to benefit the environment or its inhabitants. USFWS cannot stop evolution, nor should it try.

Although I have low expectations that 2024 will be more peaceful than last year, in the spirit of hope, I wish you Happy New Year. Thank you for your readership.

Update, July 2025: The Northwest Forest Plan has been amended. The amendment to the plan will enable more logging in the Pacific Northwest. Https://www.chronline.com/stories/proposed-changes-would-allow-more-logging-on-federal-land-in-the-pacific-northwest,372393

The amendment began during the Biden administration and was approved in May 2025. The point of the amendment is to “manage” the forest to reduce wildfire hazards. https://www.fs.usda.gov/r06/planning/northwest-forest-plan-amendment

The stated purposed of the USFWS plan to kill 500,000 barred owls was to save endangered spotted owls. The plan was created by the timber industry in the Pacific Northwest because killing barred owls on their properties enabled them to get permits needed to continue logging on their properties.

On October 30, 2025, the US Senate rejected an effort to halt the implementation of the Barred Owl Management Plan by a vote of 25-72: https://worldanimalnews.com/2025/10/30/stop-the-slaughter-450000-barred-owls-face-mass-killing-for-so-called-conservation/

However, The Trump administration has also cancelled some grants that funded the plan to kill barred owls in the Pacific Northwest: https://washingtonstatestandard.com/2025/07/22/plans-to-shoot-thousands-of-barred-owls-in-doubt-after-feds-cancel-grants/

Confusing, isn’t it? The plan lives, but some of the funding for implementation is gone. That’s my best guess.

There is some logic to this sequence of events. However, I doubt that logic was used to reach this conclusion. In any case, I am pleased that barred owls will be spared the planned massacre. However, the loss of federal funding to kill barred owls will not prevent private land owners from killing barred owls. The revision of the Northwest Forest Plan to enable more logging might make killing barred owls on private land unnecessary.

Wild by Design: A history of ecological restoration in the U.S.

“This is a superb book. Laura Martin’s research takes us where no restoration literature has gone before, asking, ‘Who gets to decide where and how wildlife management occurs?’ Martin tackles this question with unmatched clarity and insight, illuminating the crucial discussions we must have to secure a future with thriving natural species and spaces.”—Peter Kareiva, President and CEO, Aquarium of the Pacific

The author of Wild by Design, Laura J. Martin, is a professor of environmental history at Williams College.(1) She has written a comprehensive history of ecological restoration in the US that is consistent with my own observations of the restoration industry in the past 25 years. It’s a story of the gradual transition from a conservation ethic to a preservation ethic and finally to the restoration ethic that we see today. The story is punctuated by milestone federal laws and actions that facilitated the transition. Environmental non-profits and academic ecologists used those laws to professionalize and monetize the restoration industry that exists today.

By the end of the 19^th Century, the public began to react to the environmental degradation caused by unregulated resource extraction. In 1902, a survey of naturalists around the country determined there were 1,143 bison left in the country; virtually all were in captivity. The American Bison Society was founded in 1905 in reaction to the disappearance of bison in America. Their activism led to the creation of federal game reserves on former Indian reservations where captive bison were introduced. The game reserves were the model for the National Wildlife Refuge system that was greatly expanded by President Teddy Roosevelt.

A photograph from 1892 of a pile of American bison skulls in Detroit, Michigan waiting to be ground for fertilizer or charcoal. (Photo Wikimedia Commons)

The creation of the Wild Flower Preservation Society (WFPS) in 1901 was modeled on the successful campaign of the Audubon Society to save birds killed to serve as ornaments on fancy hats. It was as much a campaign to shame women into abandoning the fashion fad as it was an effort to legally ban the practice. Likewise, the Wildflower Preservation Society applied social pressure. They were critical of organized excursions to visit wildflowers because they picked and trampled the wildflowers. WFPS said that “Weddings are a new menace to our native plants” because of their use of wild flowers. Their criticism was initially aimed at their own community, but “it moved toward policing the behavior of so-called new immigrants to the United States—especially children.” The moralistic scolding by these early native plant advocates was a preview of the finger-wagging now aimed at those who choose to plant a diverse garden.

These advocacy organizations are precursors to the many environmental non-governmental organizations that are influential in pressuring government to invest in ecological restorations today.

Conservation and Preservation

The goals of conservation and preservation are similar, but some differences were observable in the past 200 years. Both ethics are committed to protecting the environment, but conservation allows the sustainable use of natural resources while preservation protects nature from use. The presidencies of both Teddy and Franklin Roosevelt were committed to conservation.

Teddy Roosevelt created the US Forest Service based on the premise that government can and should regulate public lands to manage natural resources. Franklin Roosevelt’s conservation programs were based on the same principle, but were motivated by the economic emergency of the depression as well as the environmental disaster of the Dust Bowl in the Midwest. The Civilian Conservation Corp (CCC) was created to provide jobs as well as to plant a “shelter belt” of trees across the Midwest of the country as a windbreak to stop dust storms (and many other projects). Ecologists were critical of CCC projects because they expanded recreational opportunities and put “a stamp of man’s interference on every natural area they invade.” They preferred to exclude humans and their activities from nature. This is another early indicator of the conflicts between preservation and conservation that persist to the present day.

Sharp Park, Pacifica, CA. Photo by Erica Reder, SF Public Press

Government investment in ecological research

Ecological research in the United States was fundamentally altered after World War II, which ended with the beginning of the atomic era. Atomic bombs were dropped on Japan to end the war without much thought given to the consequences. After WWII, the federal government made big investments in science, creating the Atomic Energy Commission and the National Science Foundation, which funded ecological research to study the impact of radiation on the environment and those who live in it. Conservation Sense and Nonsense published an article about those studies and the impact they had on ecological research.

These studies legitimatized destruction of ecosystems to study effects of the destruction and the concept was expanded from radiation to pesticides in the 1960s. They also provided funding to the academic profession of ecology that was small and is now enormous. The dependence of ecological studies on government funding remains to this day and government funding of ecological projects has created the restoration industry that now extends far beyond academia. Destruction of existing habitat is still considered the prerequisite to restoring a historical landscape. Often, destruction is the first and only stage of the project because of the persistent fantasy that the native landscape will regenerate without further help.

In the late 1960s Daniel Simberloff tented and fumigated 6 mangrove islands off the eastern short of Florida with methyl bromide to kill all life on the islands. The objective of the project was to study how long it would take to repopulate the islands with insects.

From Conservation to Restoration

The post-war economic boom of the 50s and 60s greatly increased the impact of human activities on the environment. The federal government built a vast highway system that fragmented and disrupted ecosystems. We built huge dams, and channeled riparian ecosystems. Open space was rapidly covered by housing and industrial development. Wetlands were drained and filled with rubble to create more land.

People who cared about the environment began to react to the loss of nature and wildlife that lives in nature. Although Aldo Leopold is idolized by the native plant movement, his concern about the degradation of nature was primarily for wildlife. His interest in vegetation was as habitat for wildlife. He was opposed to government programs devoted to killing animals perceived as predators of game animals because he believed that wildlife is best served by expanding their habitat. In fact, he was opposed to the expansion of government’s role in conservation because “he believed restoration would be most efficient and effective if pursued by private citizens.” He did not prefer native plants because “Farmers had the opportunity to conserve plants such as ragweed and foxtail (an introduced grass), ones ‘on which game, fur, and feather depend for food.’” In other words, in the 1940s one of the icons of the native plant movement knew that wildlife is not dependent upon native plants for food. One wonders if native plant advocates have actually read Leopold’s treatise, A Sand County Almanac.

Aldo Leopold’s son, Starker Leopold, had as much impact on conservation in the United States as his father. In 1963, he published the Leopold Report that changed the direction of conservation in the National Park Service. The Leopold Report recommended a goal for national parks of maintaining historical conditions as closely as possible to those of “primitive America.” When the Leopold Report was adopted as official policy by the National Park Service in 1967, it committed NPS to restoring park lands to pre-settlement conditions. NPS officially changed this policy in 2021, but we don’t see any change locally in their projects because NPS is decentralized and local parks are autonomous.

Restoration Goals

Professor Martin says that “historical fidelity did not become a widespread restoration goal among ecologists and environmental organizations until the 1980s.” The arrival of Columbus in the new World in 1492 was arbitrarily selected as the date after which all new plant species were “deemed nonnative, unwanted reminders of human (colonist) presence and activity.” On the West Coast, 1769 is the equally arbitrary date to confer non-native status because it is the date of the first Spanish expedition to California.

Many now question the goal of replicating historical landscapes. After 40 years of effort, there is a growing recognition that it is not a realistic goal, especially in a rapidly changing climate. The Society for Ecological Restoration has changed its definition of ecological restoration from “the goal of intentionally altering a site to establish a defined, indigenous, historic ecosystem” in 1990 to “the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed” in 2002. Try telling that to the restorationists on the ground who are still trying to eradicate naturalized non-native plants that have been here for nearly 200 years. Non-native annual grassland in California is a case in point. It has been repeatedly burned, mowed, plowed, and poisoned for 25 years without any visible progress toward native perennial grassland.

Blaming non-native species

Around the same time that historical fidelity was identified as the goal of “restorations,” land managers and ecologists decided that the existence of non-native species is the main threat to native species. I suppose the “logic” was that the main difference between historical landscapes and present landscapes is the existence of non-native species. Concern about non-native species spread among federal agencies such as the National Park Service and The Nature Conservancy (TNC) began aggressive campaigns to kill non-natives, “which were newly framed as the main threat to wild species…nativity would become a precondition to wildness—of plants and animals both.” TNC’s methods have become increasingly deadly and destructive: using fire and herbicides to kill plants, poisoning honeybees, aerial hunting of sheep, pigs, and goats. As a former donor to TNC, their methods finally became intolerable to me.

Professor Martin believes that the identification of non-native species as the scapegoat was not based on experimental evidence, but merely a description of the strategies used by public land managers, as well as The Nature Conservancy. Non-native species were a convenient scapegoat because they were easily identified and were an easy substitute for identifying and remediating the underlying conditions causing so-called “invasions.” “Although the role of invasive species in native species extinction has since been challenged by some ecologists, the influence of this fear on species management has been enormous…The US federal budget for invasive species management increased by $400 million between 2002 and 2005, for example.”

The Endangered Species Act (ESA) was passed in 1973, along with companion laws such as the National Environmental Protection Act and others. These federal laws created more funding opportunities for ecological projects as well as the legal justification for ecological restoration projects.

Federal laws permit the reintroduction of legally protected plant and animal species to places where they no longer exist. The ESA confers the same protections for reintroduced species as it does for naturally occurring species. Such reintroductions have become a tool for the restoration industry. I have seen that strategy used in the San Francisco Bay Area. If we had not been successful in preventing the reintroduction of a legally protected turtle, it would have justified the destruction of the non-native forest in my neighborhood park because the turtle requires unshaded nesting habitat within 500 feet of the water source in the park. The park remains largely forested because that is one of the few battles we have won in 25 years. Reintroduced, legally protected species are the Trojan horses of ecological restorations.

Compensatory mitigation is an equally powerful tool for the restoration industry. Federal law requires an Environmental Impact Statement (EIS) for projects that will have a significant impact on the environment, such as big developments like building Disney World in Florida. Disney World was built on an enormous wetland that was lost by the development of the park. The EIS for the project agreed that the impact would be great, but it “mitigated” the impact by requiring Disney to fund the creation of a new wetland in a distant location.

The funding generated to create fake wetlands built a new industry of commercial companies to design and build them. Academic restoration ecologists questioned the functional equivalency between created and natural wetlands: “’however accurate [the Comprehensive Everglades Restoration Plan] is the restored community can never be authentic.’” The tension between commercial and academic restorationists continues today.

The Society for Ecological Restoration published findings that mitigation wetlands were not functionally equivalent to the wetlands they were meant to replace. In Florida only half of the promised mitigation projects were actually built. Those that were built were colonized by “undesirable plant species” such as cattail and melaleuca in 32 of 40 projects.

Projects that earn carbon credits are creating the same opportunities to generate funding for restoration projects in distant locations. The Nature Conservancy was successful in defining carbon offsets as an international market when the Kyoto Protocols were signed in 1997. They understood that a reforestation project would be cheaper in Costa Rica (for example) than a comparable energy efficiency project in the US. Such distant projects don’t benefit those in the US who now have a power plant in their backyard that is being offset by a forest in Costa Rica.

It’s a game for those who know how to play. I have witnessed local examples in the Bay Area. An oil spill in the bay generated millions of dollars of compensatory damages to fund unrelated “restoration” projects. How does planting eel grass compensate for hundreds of birds killed by the oil spill? When the San Francisco airport expanded runways, the airport had to pay compensatory mitigation that funded the restoration of native plants at India Basin in San Francisco that hardly compensates for the increased air traffic enabled by the new runway.

Conclusion

Professor Martin is surprisingly frank about the future of ecological restoration in America:

“Whatever paths restorationists choose, restorations must happen in tandem with other changes in human behavior. If we don’t reduce the ongoing harms of racism, fossil fuel burning, overconsumption by the wealthy, and toxic industrial chemicals, restoration will offer no more than a temporary repair, a way to move a problem to some other place or time.”

I would go one step further in my assessment of the restoration industry. I would say that the methods used by restorationists are directly contributing to environmental degradation.

Professor Martin asks the right questions in her concluding chapter: “Who benefits from restoration? Who is harmed?” Those who earn their living in the restoration industry are the primary beneficiaries. According to a 2015 study entitled “Estimating the Size and Impact of the Ecological Restoration Economy,” environmental regulation has created a $25 billion-per-year restoration industry that directly employs more people than coal mining, logging or steel production. Given recent investments in restoration projects of billions of dollars by California and federal infrastructure funding, this figure is undoubtedly an underestimate.

Who is harmed? Wildlife and humans are harmed by the destruction of useful habitat with herbicides. Harmless animals and plants are killed because they have been arbitrarily classified as “invasive.” And all Americans are harmed by the waste of public funds that could be used to benefit society and/or the environment.

(1) Laura J. Martin, Wild by Design: The rise of ecological restoration, Harvard University Press, 2022. All quotes are from this book.

Endangered Species Law is under fire

Like most of our federal laws and regulations intended to protect the environment, the Endangered Species Act is under fire because the political party now in power is opposed to government regulations that impose any perceived limitations on economic activity. There are a number of laws grinding their way through the legislative process that would revise, if not gut the ESA.*

I have mixed feelings about the threats to weaken the ESA because there is widespread agreement that the law could be improved. When it was created, over 40 years ago, it was based on the scientific knowledge available at the time. For example, recently available molecular analysis has greatly improved our ability to accurately identify species.

Climate change was but a glimmer on the distant horizon 40 years ago. Now most people understand that climate change will cause many extinctions that the ESA is powerless to prevent. Emaciated polar bears standing on small islands of ice are the poster children for the impact of climate change on rare animals.

The political threats to the ESA have focused the attention of the media on specific examples of endangered species and the efforts to prevent their extinction. Each one illustrates a different issue with the existing law.

Attempts to solve one problem cause other problems

The Greater sage grouse is a critically endangered bird (although not officially designated as such) that requires sagebrush for its home. In an effort to expand habitat for the grouse, land managers destroyed native junipers that were spreading into grouse habitat. A few years later they determined that destroying the trees did not produce the desired habitat. Instead, non-native annual grasses have colonized the bare ground and many sapling junipers are growing from the seed bank left by the trees that were destroyed. (1)

Instead of calling the tree destruction a failed experiment, the scientists now propose to escalate the eradication effort. They now plan to use herbicides and prescribed burns to eradicate the non-native annual grasses. Given the persistence of herbicides in the soil, more sagebrush may not be the ultimate outcome. And the sage grouse are unlikely to benefit from either poisoned vegetation or fires in their habitat.

Some extinctions are the unintended consequence of misguided “conservation” efforts

When European rabbits were intentionally imported to Australia, predictably the population quickly exploded. A virus was then intentionally imported to kill the rabbits. Like many biocontrols, the virus spread into the native range of the rabbits about 20 years ago, including into Spain.

The Iberian lynx is very rare partly because it is a picky eater. Curiously, rabbits are the strongly preferred prey of the Iberian lynx. There were enough rabbits available for the lynx until the rabbits were wiped out by the virus that was unintentionally imported to Spain. The population of Iberian lynx plummeted to only 100 known individuals. That’s when the EU version of the ESA kicked into action.

The Iberian lynx is now bred in captivity, a complex and challenging process likened to “having a nursery for rich kids in which you have a teacher for each kid.” Needless to say that is an expensive proposition. Releasing the lynx back into the wild required that 50,000 rabbits (costing $12.30 each) be simultaneously released into lynx territory. The project cost $42 million over a period of 7 years. (2)

The Spanish environmental official responsible for the project was visibly irritated when asked about the cost of the program. He said “some ‘ignorant’ pundits were drawing unflattering comparisons between how much was being spent on the lynx compared to funding allocated to offset social issues such as unemployment.” The strongest defenses of extreme efforts to save rare species are made by those who earn their living on them. (2)

Growing number of “conservation reliant” species

An article in the New York Times magazine recently asked this rhetorical question, “Should some species be allowed to die out?” (3) The article focused on Hawaii because it is a place where heroic efforts have been made to save endangered species. Nearly 50% of 1,280 federal endangered species are in Hawaii. Over 80% of all endangered species are considered “conservation reliant,” a term used to describe the plants and animals that are permanently on life support. They will not survive if not permanently tended by humans in hothouses and animal shelters.

Hawaii has the most endangered species because they evolved in isolation in a distant place with no interaction with the outside world until about 700 years ago. That isolation cannot be recreated without stopping all trade and travel to and from Hawaii. That is clearly not going to happen. If the underlying conditions that cause extinctions cannot be reversed, no amount of human effort is likely to prevent the extinction.

Although I consider most of these efforts futile, that is not the conventional wisdom. There are over 300 comments on the article in the NY Times that are overwhelmingly supportive of the ESA and the heroic efforts to save rare species.

Confiscation of private land

The ESA enables the government to designate both public and private land as “critical habitat” for endangered animals. The US Supreme Court has agreed to hear a case about the application of the Endangered Species Act that enabled the federal government to designate 1,600 acres of private land as critical habitat for an endangered frog. That designation will prevent the land owner from developing the land or using it for a different purpose other than providing POTENTIAL habitat for a frog that has not been seen in that part of the country since 1965. US Fish & Wildlife also concedes that the frog cannot live on the land in its present condition and requires modification to accommodate the needs of this frog. (4)

Needless to say, private land owners aren’t enthusiastic about the loss of the use of their land for purposes other than supporting a specific rare animal.

Assisted migration?

Torreya taxifolia, commonly known as Florida nutmeg, was classified as endangered in 1984. It was attacked by a fungal blight about 70 years ago that has decimated its population in its small native range on the Florida panhandle. It is an example of one of the major obstacles to keeping rare plants alive because it is very difficult to propagate:

“Unlike most plants, the tree has so-called recalcitrant seeds, which cannot be preserved in conventional seed banks because they can’t survive drying. This necessitated the development of a tissue-culture system for the species called somatic embryogenesis. Embryos are surgically removed from fully developed seeds, then cultured in vitro to encourage the formation of multiple embryos. These can be safely preserved in a new cryogenic storage unit obtained by Atlanta Botanical Garden, in which the resulting plantlets are coaxed into a state of suspended animation at -321° Fahrenheit in liquid nitrogen.” (5)

This labor-intensive method of germinating the seeds of Torreya taxifolia has enabled scientists to grow Torreya in several botanical gardens in places distant from its native range. Tree activists want to introduce the tree to wildlands in distant locations where the fungal pathogen that is killing the tree in its native range doesn’t exist. This is called “assisted migration,” a controversial strategy that is prohibited by the ESA. Moving endangered plants and animals requires the approval of the US Fish and Wildlife Service, permission they have so far denied for Torreya.

The ESA defines the criteria for recovery and removal of endangered status. The plant must be living on its own “in the wild” and must successfully reproduce naturally for at least two generations. Given the circumstances of this rare tree and many other “conservation reliant” species, it seems they are permanently doomed to be permanently legally protected endangered species.

The ESA’s reluctance to enable the movement of species from their native ranges is inconsistent with the realities of climate change. When the climate changes, the vegetation changes. To prevent that from happening is to doom the vegetation and the animals that require the vegetation to extinction. The ESA has become an obstacle to survival, rather than a tool to ensure survival.

Improving the Endangered Species Act?

In summary, the Endangered Species Act can be improved to achieve its original purpose as a means of preventing extinctions of plants and animals, as illustrated by the examples listed above:

Actions intended to help a rare species should not inflict further damage on the environment, such as biocontrols, pesticides, and killing other animals considered competitors.
Plant and animal species that require permanent human intervention to survive should be removed from life support after decades of such intensive care. Humans often make that choice for themselves at the end of life and it is widely considered a humane choice. Triage is an ethical strategy in the medical profession and it should be in conservation as well.
Private property rights should be respected by the Endangered Species Act. The political cost of such confiscations are too high a price to pay for the meager benefits to the species in question.
If the underlying cause of an extinction is a fundamental change in the environment that cannot or will not be changed, it is pointless to aim conservation efforts at symptoms of the change, rather than causes of the change. For example, if melting Arctic ice opens a corridor between the Atlantic and Pacific oceans, it is pointless to try to prevent the movement of sea life between those oceans.
Plants and animals that can no longer survive in their native ranges because of changes in conditions, should be carefully considered for introduction to places with suitable conditions.

This wish list has nothing to do with the legislative effort to weaken the ESA. That political effort is in the service of economic interests, such as fossil fuel exploitation and mining, and is not intended to benefit the rare plants and animals presently protected by the law.

* “But under the Trump administration, at least 63 separate legislative efforts to weaken the [ESA] act have been undertaken since January 2017, according to the Centre for Biological Diversity.” New York Times, April 22, 2018.

The Endangered Species Act is based on outdated science

We have reported to our readers many times about the changes in scientific opinion regarding invasion biology in the past fifty years, since the inception of the theories that originally supported that discipline. Now we see an acknowledgement of the changed scientific viewpoint in a critique of the Endangered Species Act by the legal profession.

Holly Doremus is Professor of Law at Boalt Law School at the University of California, Berkeley. Her critique of the Endangered Species Act (ESA) was published by the Journal of Law & Policy in 2010. She previews her theme in her introduction:

“I am interested in why the ESA came to assume an unrealistically static vision of nature. First, the Act’s static structure is typical of law in general, which has traditionally embodied the human search for stability. Second, the Act is inevitably, a product of the political times in which it was drafted and of a rapid and chaotic legislative process, which did not encourage thoughtful examination of the complex contours of the conservation problem. Third, it followed in part from incorrect but widely shared assumptions about the nature of the problem and potential solutions. Fourth, scientific understanding was itself in transition as the law was being crafted, moving from a focus on the tendency of ecological systems to approach equilibrium to one on the ongoing dynamics of many systems.” (1)

We will focus on the fourth issue, i.e., how the ESA is in conflict with the reality of constantly changing ecosystems.

A Static Vision of Nature

The ESA is based on assumptions about nature that were the conventional wisdom at the time the law was passed in 1973:

Evolution was considered a series of events that occurred in the distant past and is no longer actively changing plant and animal species. Theoretically evolution does not end, but at the time the ESA was passed in 1973, it was not believed to occur within a time frame that would be observable by man. Plant and animal species were therefore viewed as being distinct and unchanging.
This view of evolution was consistent with the prevailing public opinion in the United States, which does not believe in evolution. Many Americans believe that species have not changed since they were created by God.
Nature was perceived as reaching an “equilibrium state” that was stable over long periods of time.
Early conservation efforts were therefore based on the assumption that once achieved, an equilibrium state could be sustained if left undisturbed in nature preserves.
Darwin’s finches are an example of rapid evolution

We now know that these assumptions were mistaken. Evolution can occur very rapidly, particularly amongst plants and animals with short life spans and frequent generations. And ecosystems are constantly changing, particularly at a time of a rapidly changing climate and associated environmental conditions such as atmospheric conditions.

Professor Doremus tells us that ecological scientists played no role in the writing of the ESA and took little notice of the law when it was passed. The press also ignored the new law, which may have been a factor in its being unnoticed by the scientists who may have been in a position to raise the questions that should have been asked. “It seems that conservation scientists, like the general-interest press, and most legislators, did not consider the ESA groundbreaking, or even particularly important.” (1) In any case, the problems that have arisen in the implementation of the law were not foreseen by the politicians who passed it, nearly unanimously in 1973.

How does the ESA define “species?”

As its name implies, the heart of the law is how “species” are defined. In fact, if the law had stopped at providing legal protection for “species,” we would not be experiencing nearly as much difficulty with the implementation of the law. Unfortunately, the ESA’s “…definition of ‘species’ [is] broad, but not a model of clarity, ‘The term “species” includes any subspecies of fish or wildlife or plants, and any distinct population segment of any species of vertebrate fish or wildlife which interbreeds when mature.” (1)

Splitting species into sub-species and “distinct population segments” has proved problematic because taxonomy (the classification of organisms) has always been inherently subjective and will probably continue to be. The taxonomic system that was popular at the time the ESA was passed was Mayr’s biological species concept which identifies as a species any group that interbreeds within the group but not with outsiders. This definition is not useful for a species that hybridizes freely, such as the manzanitas of which six species have been designated as endangered. Professor Doremus tells us that US Fish & Wildlife Service now evaluates the legal consequences of hybridization on a case-by-case basis.

Since the ESA was passed, many competing definitions of “species” have been proposed by scientists. There were 22 different definitions of species in the modern literature as recently as ten years ago. These competing definitions reflect disagreement about appropriate criteria for identifying species—morphology, interbreeding, or genetic divergence, as well as the degree of difference needed to define the boundary between species. We see these scientific controversies played out repeatedly in the law suits that are interpreting the ESA.

The identification of “distinct population segments” amongst vertebrates has proved to be even more problematic. Legal challenges to the determination of distinct population segments have reversed the rulings of the US Fish & Wildlife Service for many species that were considered genetically identical such as the sage grouse (eastern vs, western?) and the Preble’s meadow jumping mouse (found in different meadows in the Rocky Mountains). In some cases, these rulings were reversed several times, and perhaps will be again! These reversals reflect the ambiguity of the law, as well as the science of taxonomy. The fact that the ESA specifically allows “citizen suits” has pushed the regulating agencies to implement the law more aggressively than politics alone would have predicted.

Species can and do move

In addition to considering species immutable and unchanging, the ESA also takes a static view of where they live. The concept of “distinct population segments” depends somewhat on the assumption that species of animals don’t radically alter their ranges in the short-term. The assumption is also consistent with the underlying conservation policies that tend to preserve specific places in order to protect rare species within those places.

We now understand that some ecosystems are internally dynamic. We recently told our readers of the need for the sand dunes near Antioch, California to move freely in the wind to sustain that fragile ecosystem. Professor Doremus also tells us about the constantly changing courses of braided rivers in Nebraska that are essential to the sustainability of that unique ecosystem.

Platte River in Nebraska is a braided river. Creative Commons

In a rapidly changing climate, the preservation of a species may require changing ranges. If the climate becomes too cold, too hot, too wet, or too dry for a species of plant or animal, its immediate survival may require that it move to higher or lower altitudes or latitudes. Moving may be a more effective strategy than the adaptation that may be slower than necessary to survive. Freezing species into their historic ranges does not ensure their survival at a time of rapidly changing climate. In some cases, a species has become plentiful in the new territory it has freely chosen to inhabit and simultaneously rare in its historic range where it has been designated as an endangered “distinct population.” Draconian measures have been taken to restore a species in its historic range, where it is no longer adapted to current conditions.

We leave you with Professor Doremus’ observation about the ESA: “The ESA’s static view of species, landscapes, and conservation obligations, while entirely understandable, has become a hindrance to effective conservation. The ESA’s lofty goals of conserving species and the ecosystems upon which they depend cannot be achieved without a more realistic vision of the dynamic qualities of nature and the ability to respond to the changes that are inevitable in dynamic systems.”

************************

(1) Holly Doremus, “The Endangered Species Act: Static Law Meets Dynamic World,” Journal of Law & Policy, Vol. 32: 175-235, 2010.

The Endangered Species Act: Static law meets dynamic nature

Once passed, laws rarely change and when they do it takes an arduous effort that tests a rigid political and judicial system. Nature, on the other hand, is inherently dynamic and we are usually powerless to stop it from changing even when we try. So, when a law is designed to control nature, we can expect some conflict between static law and dynamic nature. Forty years after the Endangered Species Act was passed, that conflict is becoming progressively more apparent and problematic.

San Franciscans recently had an opportunity to comment on the designation of 270 acres of city parkland as critical habitat for the endangered Franciscan manzanita which illustrated some of these conflicts. This rare plant requires full sun, which predicts that all trees will be destroyed in those acres, as they were for the closely related, endangered Raven’s manzanita. The seeds of both of these plants germinate only after fires, which may mean that prescribed burns will be required for the long-term survival of the plants. Restrictions on recreational access are also likely.

Are these sacrifices worth making? Are the prospects of the long-term survival of these rare plants good enough to justify these sacrifices? That’s for you to judge.

The Antioch Dunes

Lange's metalmark butterfly, USFWS photo — Lange’s metalmark butterfly, USFWS photo

Let’s consider those questions within the context of the Antioch Dunes, a National Wildlife Refuge northeast of San Francisco which is the home of three endangered species, including Lange’s metalmark butterfly. Antioch Dunes was designated as a national wildlife refuge in 1980, four years after the metalmark was given endangered status.

It is 55 acres along the southern shore of the San Joaquin River east of the city of Antioch. Historically it was a system of enormous sand dunes that was an accumulation of glacial sands washed down from the Sierras over millennia. Some of the dunes were as high as 120 feet. Because it was a unique habitat, surrounded by different vegetation, it was home to many endemic species that existed only there. As the dunes were diminished by decades of mining for building materials, those endemic species became progressively more rare. The remaining dunes were fragmented into two segments separated by a gypsum plant that spews gypsum dust onto the plants. This is just one of many factors that have decimated the population of plants and insects.

Lange's metalmark caterpillar on naked-stemmed buckwheat. USFWS photo. — Lange’s metalmark caterpillar on naked-stemmed buckwheat. USFWS photo.

Historically, the dunes were unstabilized sand, known as “transporting dunes.” The sand shifts in the wind, which some plants are specifically adapted to. The host plant of Lange’s metalmark, naked-stemmed buckwheat, is such a plant that requires the shifting sands for its long-term survival. The buckwheat is the only plant the metalmark will lay its eggs on.

The “creative destruction” of the shifting sands also helps to control the non-native weeds that compete with the native plants.

When Lange’s metalmark and two rare plants (Antioch Dunes evening primrose and Contra Costa wallflower) were given endangered status in 1976, the owners of the property assumed that the federal government would soon purchase the land for their long-term protection. They sold most of the remaining sand in preparation for that sale. The short-term consequence of endangered status was not positive because the sand dunes were further depleted by the rush to profit before the sale of the land to the federal government as a wildlife refuge.

Efforts to recover the population of Lange’s metalmark butterfly

Antioch Dunes evening primrose. USFWS photo.

Managers of Antioch Dunes have trucked in tons of sand to restore the dunes. They have aggressively managed the non-native weeds that compete with the host plant of the butterfly and other rare plants. They use herbicides and prescribed burns in addition to hand-pulling the weeds. They have planted thousands of the rare plants in an attempt to restore the population.

In 1986, they closed the dunes to the public—except for a monthly guided tour—after the dunes were trampled by thousands of people trying to catch a glimpse of Humphrey, the whale that lost his way into the delta and had to be coaxed back out to sea by playing recordings of whale vocalizations.

After a one-day peak count of 2,342 butterflies in 1999, the population plummeted to only 45 in another one-day count in 2006. Clearly something drastic had to be done to turn the decline around. A captive breeding program began the following year. A biologist at Moorpark Community College in Southern California captured a few ovulating females and carried them home to Moorpark to lay their eggs. The story of how the butterflies and their offspring were tended by students at the college is mindboggling:

“Each [of the 27 newly-hatched butterflies] had to be fed two or three times a day, by hand, with a Q-tip soaked in honeywater—an aggravating job that wound up taking all morning. In the afternoon, the [new generation of butterflies brought from the dunes] were transferred onto potted buckwheat plants so they could keep laying eggs. (Students assemble homemade enclosures for each butterfly by shoving the buckwheat through the bottom of an upside-down quart-sized clear plastic deli container…ventilating it, and sealing it off from pests with duct tape and toilet paper.) The other butterflies, meanwhile, spent their afternoon split into groups of four or five. The hope is that these adults will pair off and breed, and students sign up for one-hour ‘mating watch’ shifts to keep them under observation…The students also have to move the containers frequently from place to place, in and out of shade, to keep the butterflies inside from getting too hot or too cold, and to try to catch a certain mysterious quality of dappled sunlight that appears to put the insects in the mood. “ (1)

This labor-intensive, tedious exercise has been done annually since 2007. In 2008, the enterprise was able to reintroduce 30 butterflies to Antioch Dunes. In 2012, the total annual count of butterflies at Antioch Dunes was 32, up from 28 the previous year. Not much to show for the effort of the Moorpark students and faculty.

What are the prospects for survival of Lange’s metalmark butterfly?

As you might expect, the answer to that question varies depending on who you ask. Two of the oldest, most experienced butterfly experts—Jerry Powell (Emeritus Professor, UC Berkeley) and Rudi Mattoni—say it’s hopeless. They find the continuing effort laughable.

Powell has been studying the Antioch Dunes for decades. He sees the selection of Lange’s metalmark as the sole insect species on which to lavish attention and support, extremely stupid. All the insect populations on the Antioch Dunes have been decimated by encroaching civilization. All the plants and animals at the Dunes form a complex ecosystem that can’t be separated into a few species that can be saved in isolation from their community. Powell was interviewed by the author of Wild Ones: “He told me that any work to recover the Lange’s is decades beyond the point of diminishing returns, and even if it were possible, the agency’s strategies were, in his opinion, completely misguided.”

Mattoni spent decades trying to save several species of rare butterflies in Southern California from extinction. At the age of 76, he abruptly threw up his hands and moved to Argentina. The author of Wild Ones interviewed him via Skype: “’There’s a clause right near the top [of the Endangered Species Act] that nobody remembers,‘ he said, ‘And it’s the whole soul of the Endangered Species Act.’ It begins, ‘The purposes of this Act are to provide a means whereby the ecosystems upon which endangered and threatened species depend may be conserved.’” Then Mattoni explained why he walked away from a long career of trying to save rare butterflies, “The butterflies were just a means to preserve wild places, but all the attention got lavished on the butterflies themselves…Once the habitat is gone, it’s gone,” Mattoni said. ‘It’s too complex—you can’t put these things back.’”

So, where does the author of Wild Ones find a more optimistic viewpoint for the survival of the metalmark or least ideas about what to do to save it? He interviews Brent Plater, former lawyer for Center for Biological Diversity, now owner of his own legal-suit machine, Wild Equity Institute. Plater tells him that he is preparing to sue to prevent the opening of gas-fired energy plants near Antioch Dunes. The plants will be less polluting than petroleum fuel plants, but Plater isn’t a “better-is-best” kinda guy. He doesn’t want ANY energy producing plants near the Antioch Dunes because they increase nitrogen levels in the air and nitrogen encourages the growth of non-native weeds that compete with the rare native plants. The Wild Equity website announces that suit was filed on July 24, 2013, against EPA for approving permits to the builders of the new energy plants.

The Shifting Baselines Syndrome

What distinguishes the optimists from the pessimists in this debate? Age is one difference. Wild Ones tells us about the “shifting baselines syndrome” which explains why the old scientists are less likely to be optimistic than the young lawyer. We form our opinion of what is “normal” in nature when we are young.

When Professor Powell and Mr. Mattoni were young the Antioch Dunes were teeming with insects, the sand dunes were nearly intact, and the native plants were still thriving. Compared to that baseline, the Antioch Dunes are totally trashed and the prospect of returning them to their previous glory seems preposterous to them.

Mr. Plater’s view of what is normal for the Antioch Dunes is a small population of butterflies, native plants overrun by non-native plants, and sand that was trucked in and bulldozed into dunes. It’s not difficult to improve on that landscape. Reducing nitrogen levels in the air seems a suitable improvement.

Furthermore, Powell and Mattoni are no longer earning their living trying to save rare butterflies, while Mr. Plater’s suit will fill the coffers of his non-profit institute if he wins or even if he just tries. He and his colleagues were recently awarded $386,000 for their legal “expenses” for their suit on behalf of two endangered species at Sharp Park near San Francisco despite the fact that they didn’t win that suit. When one earns one’s living trying to save rare butterflies, surely one believes it is a worthwhile effort.

What is worth doing?

The author of Wild Ones doesn’t offer a particular answer to this question, but he does point in a direction. He visits two neighboring populations of metalmark butterflies. One population in Mendota, about 120 miles away from the Antioch Dunes, looks identical to the Lange’s metalmark, in his opinion. But DNA tests say it’s not identical to the Lange’s metalmark. The metalmark population near Mt. Diablo, just ten miles away, looks less like the Lange’s metalmark, but its DNA is very similar, just .5% (one-half percent) difference in their DNA.

The proximity of these sub-species of metalmarks illustrates one of the issues with the Endangered Species Act. DNA analysis, which was not readily available when the Endangered Species was passed, is making it possible to split species into more and more sub-species. The smaller the populations of sub-species, the more likely they are to dwindle as the climate changes and habitat disappears. The Endangered Species Act would be a less blunt instrument if it applied to species, rather than to small, isolated populations of sub-species.

The author of Wild Ones tells us about a breeding program for a butterfly in which markedly different physical characteristics were achieved in just seven generations. He wonders if by selective breeding of the butterfly that is very closely related genetically to Lange’s metalmark, we would have a butterfly that not only looked identical but would be nearly identical genetically. Echoes of Frankenstein come to mind. Is it a freak show or is it a way to resurrect the Lange’s metalmark with a lot less fuss? Again, we leave that to you.

*****************************

Jon Mooallem, Wild Ones, Penquin Press, New York, 2013

Franciscan manzanita: The confiscation of public land

Update: US Fish & Wildlife published the final rule designating critical habitat for Franciscan manzanita on December 20, 2013. 230.2 acres of land in San Francisco have been designated as critical habitat: 46.6 acres of federal land, 172.8 acres of parks owned by San Francisco’s Recreation and Parks Department, and 10.8 acres of private land. The complete document is available here. The document responds to public comments and explains any differences between the proposed designation and the final rule. It makes interesting reading.

******************************

On September 5, 2012, US Fish & Wildlife (USFWS) announced that Franciscan manzanita is now an endangered species. In 2009 the single plant known to exist in the wild was discovered during the reconstruction of Doyle Drive. It was transplanted to an undisclosed location in the Presidio in San Francisco.

In addition to the conferral of endangered status, US Fish & Wildlife has designated 318 acres of land in San Francisco as critical habitat for the Franciscan manzanita. Critical habitats are places where the endangered plant is either known to have existed in the past or they are places that provide what the plant needs to survive.

Five of the eleven places in San Francisco designated as critical habitat are on federal land in the Presidio. (Details about all the critical habitats are available here.) Forty of the 318 acres are on private land. Six of the critical habitats are in 196 acres of San Francisco’s city parks:

Corona Heights
Twin Peaks
Mount Davidson
Glen Canyon Park (erroneously called Diamond Heights by US Fish & Wildlife)
Bernal Hill Park (erroneously called Bernal Heights by US Fish & Wildlife)
Bayview Hill Park

The taxonomy of manzanita is ambiguous

There are 96 species of manzanita in California (1). The ranges of most of these species are extremely small because the manzanita hybridizes freely and therefore adaptive radiation has resulted in a multitude of species, sub-species, and varieties that are adapted to micro-climates. Many of these species are locally rare, which is consistent with the fact that 6 species of manzanita have already been designated as endangered, two of which are limited to the San Francisco peninsula: Raven’s manzanita and Franciscan manzanita.

The genetic relationship between these two species of manzanita is ambiguous, which is reflected in the constantly shifting opinions of biologists about the taxonomy (species classification) of manzanita. The 2003 Recovery Plan for Raven’s manzanita recounted the long history of these shifting views. For some time, Raven’s and Franciscan manzanitas were considered the same species. Then, for an equally long time, they were considered sub-species of the same species, Arctostaphylos hookeri. It was not until 2007, that Raven’s was reclassified as a sub-species of Arctostaphylos montana. Presently, Franciscan manzanita is classified as its own species, Arctostaphylos franciscana.

Clearly, this history of the biological opinion regarding these two species of manzanitas suggests they are closely related and morphologically (AKA anatomically) similar. The Recovery Plan concludes, “The idea of ‘pure’ species in Arctostaphylos, with its many poorly defined taxa and prevalent hybridization has often been difficult to apply over the history of taxonomic work in the genus.”

To add to the confusion regarding the provenance of Franciscan manzanita, some biologists are of the opinion that the individual plant that was discovered on Doyle Drive is actually a hybrid, not a pure-bred Franciscan manzanita. The East Bay Regional Park District botanical garden in Tilden Park has planted a clone of the individual plant from Doyle Drive. It is labeled as a hybrid of Arctostaphylos uva-ursi, which is one of the few species of manzanita with a wide range.

Doyle Drive label — This is the label on the “Doyle Drive” manzanita in Tilden Park Botanical Garden, indicating that it is a hybrid.

The park ranger who led us to this plant in the Tilden garden, pointed out that the plant is morphologically distinct from the Franciscan manzanita that has been resident in that garden for about 50 years. He expressed his opinion that the Doyle Drive manzanita was properly labeled as a hybrid.

In what sense is the Franciscan manzanita “endangered?”

Franciscan manzanita has been available for purchase in nurseries for about 50 years. It has been propagated by taking cuttings and therefore they are presumed to be genetically identical clones. However, given that this plant has been sold to the public for a long time, we have no way of knowing exactly where they have been planted or if some have successfully reproduced by germinating seeds. For all we know, this plant is thriving somewhere, perhaps even in a place we might call “wild.” Perhaps the plant found on Doyle Drive was purchased in a nursery!

The individual plant found on Doyle Drive has been defined by USFWS as Franciscan manzanita despite the fact that some biologists consider it a hybrid of another species. We understand that the motivation for designating this individual as an endangered species and providing it with critical habitat is based on an assumption that it is genetically different from the Franciscan manzanita that can be purchased in nurseries and that the chances of survival of the species may be improved by cross-fertilization of these two plants such that greater genetic diversity results from their union.

Yet we are offered no evidence of the genetic composition of the Doyle Drive individual or Franciscan manzanita sold in nurseries. Nor are we provided any evidence that the Doyle Drive individual is even a genetically “pure” Franciscan manzanita rather than a hybrid of another species altogether.

If we weren’t being asked to devote 318 acres of land to the propagation of a plant with such ambiguous taxonomy, we might not question how little information we have been provided. The technology of mapping the genome of this plant is available to us. Why aren’t we making use of this technology to resolve these ambiguities? The cost of planting 318 acres with this endangered plant far exceeds the cost of such genetic analysis.

We aren’t told what it will cost to plant 318 acres with this endangered plant, but we know that the cost of the recovery plan for Raven’s manzanita and lessingia was estimated as $23,432,500 in 2003. Presumably that is an indication that the proposal for Franciscan manzanita will be a multi-million dollar effort. The cost of transplanting the single plant from Doyle Drive to the Presidio was reported as over $200,000. (1)

Thirty years of endangered status for Raven’s manzanita has not saved this plant

We have already made the point that Raven’s and Franciscan manzanitas are closely related. In its proposal for the designation of critical habitat for Franciscan, USFWS confirms this close relationship by referring us to the Recovery Plan for Raven’s. In other words, the characteristics and horticultural requirements of these two species are so similar that a separate Recovery Plan for Franciscan is not necessary. The Recovery Plan for Raven’s is applicable to Franciscan.

Therefore, we should assume that the fate of the recovery effort for Franciscan will be similar to that for the Raven’s. Raven’s was designated as endangered in 1979. Its first recovery plan was published in 1984 and the second in 2003. Many 5-year reviews of its endangered status have been done during this 33 year period. The most recent 5-year review was published in June 2012; that is, very recently.

So what does USFWS have to show for 33 years of effort to save Raven’s manzanita from extinction? Almost nothing:

Clones of the single plant in the wild exist in several botanical gardens. These clones are genetically identical and their growth in maintained gardens does not meet ESA standards for recovery.
“The wild plant has been observed to set seed although no natural seedling establishment is known to have occurred.” (6)
The plant has been the victim of twig blight several times, but the fungus cannot be treated because it would damage the mycorrhizal fungi in the soil upon which the plant is dependent.
The seeds depend upon animal predators for dispersal which are largely absent in an urban area.
The pollinators of manzanita have not been identified and therefore there is no assurance that they still exist in this location.
The 5-year review concludes that: “…recovery sufficient to warrant full delisting is not projected in the foreseeable future for [Raven’s manzanita] and may not be possible.”

We can’t appreciate the significance of the utter failure of this effort without some mention of the extreme methods used to overcome these obstacles.

The seed of manzanita is germinated by fire. However, the exact relationship between fire and germination is not known. Therefore, many complex experiments have been conducted on the few viable seeds produced by the Raven’s manzanita in a futile effort to determine the winning combination. These experiments are described in detail in an article in Fremontia (1). In short, various combinations of fire, heat, cold, smoke, liquid smoke, etc., were tried and failed to determine exactly what triggers germination of manzanita seeds.

We should remind our readers of the legal definition of “recovery” according to the Endangered Species Act. According to the 5-year review for Raven’s manzanita, here are two of the criteria for recovery toward which there has been no progress in 33 years:

“At least five spontaneously reproducing variable populations are established in reserves…in San Francisco…”
“At least two sexually reproduced generations are established within the Presidio.”

Frankly, it is no longer credible to expect the recovery of Raven’s manzanita and this failure implies the same fate for Franciscan manzanita.

Can the public parks of San Francisco meet the horticultural requirements of Franciscan manzanita?

The public parks of the City of San Francisco cannot meet the horticultural requirements of the Franciscan manzanita because it requires fire to germinate its seeds.

All of the critical habitats proposed by USFWS in San Francisco’s public parks are designated “natural areas.” According to the DRAFT Environmental Impact Report of the “Significant Natural Resource Areas Management Plan,” prescribed burns are prohibited in the natural areas. Therefore, unless there are unplanned wildfires in the six public parks proposed as critical habitat, it will not be physically possible to “spontaneously reproduce” this plant, as required by the Endangered Species Act.

Granted, the City of San Francisco could revise its management plan for the natural areas to allow—or even require—prescribed burns in the six parks proposed as critical habitat. In that case, the citizens of San Francisco would be subjected to air pollution and risk of causing an uncontrolled wildfire in surrounding residential communities. The Natural Areas Program would be subject to even more criticism than it already endures.

The Natural Areas Program is extremely controversial in the City of San Francisco because it destroys healthy non-native trees, it sprays pesticides on non-native vegetation in public areas, it destroys the habitat of wildlife, and it limits the public’s recreational access to trails which are often fenced. Subjecting the natural areas to prescribed burns is surely the bridge too far for the public which would jeopardize the future of the entire program. Why would the City of San Francisco be willing to push the public over the edge by requiring prescribed burns in six urban parks in densely populated residential communities?

Furthermore, some of the proposed critical habitat is in heavily forested areas, which are not compatible with the requirement of manzanita for full sun. As they were on behalf of Raven’s manzanita, these trees would be destroyed. The City of San Francisco is already planning to destroy 18,500 trees over 15 feet tall to accommodate its desire to reintroduce native plants to forested areas. (3) How many more trees would need to be destroyed to accommodate Franciscan manzanita? How much more carbon dioxide would be released into the atmosphere by the destroyed trees?

Bayview Hill is one of the proposed critical habitats which are heavily forested. According to SNRAMP (3), 17.16 acres of Bayview Hill is forested. Given that Bayview Hill is the only proposed critical habitat which is outside the known historic range of Franciscan manzanita, the loss of 17 acres of trees does not seem a fair trade for a plant with few prospects for survival.

The proposed critical habitat in Glen Canyon Park (inaccurately called Diamond Heights by the proposal) is also forested in a portion of the 34 proposed acres of critical habitat. This is a park in which the destruction of trees is being hotly contested. The community in this park does not need the additional controversy of tree destruction for the sole purpose of planting an endangered species.

Proposed critical habitat in other city parks is likely to be controversial for other reasons, primarily because additional restrictions on recreational access will undoubtedly be required to protect this endangered plant. Bernal Hill is an example of a city park with a huge community of visitors who will undoubtedly be enraged by further loss of recreational access. They have already been squeezed by the restrictions imposed by the Natural Areas Program.

This proposal for critical habitat is not good public relations for the Endangered Species Act

The City of San Francisco is the second most densely populated city in the country. It is comprised of only 29,888 acres. There are only 3,317 acres of City-managed parks in the city. (2) The proposed critical habitat in City-managed parks is 196 acres, 6% of total City-managed park land in San Francisco.

Please ask yourself these questions:

Does it make sense for 6% of all City-managed park land to be permanently committed to planting an endangered plant which can be purchased in nurseries?
Does it make sense to confiscate 6% of all public parks for a plant the identity of which we are not certain?
Does it make sense to throw the public out of 6% of all public parks on behalf of a plant that will never be able to spontaneously reproduce unless there is an accidental wildfire?

We think the answers to these questions are no, no, and no. This is an ill-advised proposal which makes a mockery of the Endangered Species Act. This is an important law that is trivialized by a proposal that will be physically impossible to implement without endangering the public and damaging the environment.

Comments on the proposed critical habitats will be accepted until November 5, 2012. Comments may be submitted online at the Federal eRulemaking Portal at http://www.regulations.gov (Docket Number FWS–R8–ES–2012–0067) or by U.S. mail to:

Public Comments Processing
Attn: FWS–R8–ES–2012–0067
Division of Policy and Directives Management
U.S. Fish and Wildlife Service
4401 N. Fairfax Drive, MS 2042-PDM
Arlington, VA 22203.

*********************************

Bibliography

(1) Gluesenkamp, Michael, et al., “Back from the Brink: A Second Chance at Discovery and Conservation of the Franciscan Manzanita,” Fremontia, V37:4/38:1, 2009-2010

(2) Harnik, Peter, Inside City Parks, Trust for Public Land, 2000

(3) San Francisco Recreation and Park Department, “Significant Natural Research Area Management Plan (SNRAMP),” 2006

(4) San Francisco Recreation and Park Department, “DRAFT Environmental Impact Report for SNRAMP,” 2011

(5) USFWS, “Designation of Critical Habitat for Franciscan Manzanita,” September 5, 2012

(6) USFWS, “5-Year Review of Endangered Status of Raven’s Manzanita,” June 2012

(7) USFWS, “Recovery Plan for Coastal Plants of the Northern San Francisco Peninsula,” 2003

Formidable odds against reintroduction of Mission Blue butterfly

The Mission Blue butterfly is a federal endangered species which existed historically on Twin Peaks in San Francisco. San Francisco’s Natural Areas Program has been trying to reintroduce the Mission Blue to Twin Peaks for several years, so far with limited success. Visit the Save Sutro website for a detailed description of these efforts which began in 2009.

The “Recovery Action Plan for the Mission Blue Butterfly at Twin Peaks Natural Area” acknowledges the difficulty of this undertaking. It cites a study of 226 attempts to reintroduce butterflies where they have been extirpated (locally extinct). These attempts lasted an average of 15 years. Only 29 of the attempts were ultimately successful. So what are the odds of success on Twin Peaks?

Identified obstacles to success

The federal Endangered Species Act requires that a recovery plan be written for each endangered species. These recovery plans are a valuable source of information about each endangered species, the factors that resulted in their endangered status, and the plans to promote the recovery of the population. From the recovery plan for the Mission Blue, we learn of several issues that make its reintroduction problematic at best:

The Mission Blue is dependent upon just 3 species of lupine for its development. Two of these exist on Twin Peaks, but the predominant species is infected with a fungal pathogen which flares up during warmer, wetter weather. The small population of Mission Blues on Twin Peaks crashed in 1998 when the fungal pathogen killed many of the lupines.
The lupine is crowded out by scrub species if natural disturbances such as fire do not prevent natural succession from grassland to scrub such as native coyote brush.
Non-native species of plants are also competitors of the native lupines and their growth is encouraged by higher levels of nitrogen in the soil found in urban environments as a result of the burning of fossil fuels.

The Natural Areas Program cannot control these factors:

There is no known cure for the fungal pathogen that is killing lupine. In wetter years, it is likely to kill some of the lupine on Twin Peaks again, as it has in the past.
The Draft Environmental Impact Report for the Natural Areas Programs says that prescribed burns will not be conducted in the “natural areas.” Prescribed burns are conducted by the State parks department periodically on San Bruno Mountain, where a viable population of Mission Blue butterflies exists. This method of preventing natural succession to scrub in order to maintain a population of the butterfly’s host plant will not be an option on Twin Peaks.
We should probably assume that existing automobile traffic in San Francisco will continue to contribute to nitrogen in the soil for the foreseeable future. Higher levels of nitrogen will promote the growth of the non-native vegetation that competes with the native lupine upon which the Mission Blue depends.

Unidentified obstacles to success

twin peaks 001 — Pesticide Application Notice, Twin Peaks

In addition to the issues that have been identified by federal and local recovery plans, the Natural Areas Program has introduced a new threat to the Mission Blue. Herbicides are being used on Twin Peaks to control non-native vegetation. Twin Peaks was sprayed with herbicides 16 times in 2010 and 19 times in 2011. Are these herbicides a factor in the limited reproductive success of the Mission Blues that have been reintroduced to Twin Peaks?

A recently published study reports that the reproductive success of the Behr’s metalmark butterfly was significantly reduced (24-36%) by herbicides used to control non-native vegetation. Two of those pesticides are used on Twin Peaks, imazapyr and triclopyr. Triclopyr was used most often on Twin Peaks in 2010 and imazapyr in 2011.

The study does not explain how this harm occurs. It observes that the three herbicides that were studied work in different ways. It therefore speculates that the harm to the butterfly larva may be from the inactive ingredients of the pesticides which they have in common, or that the harm comes to the larva from the plant which is altered in some way by the herbicide application. Either theory is potentially applicable to the herbicides used on Twin Peaks and consequently harmful to the Mission Blue.

Native plant advocates would like us to believe that the herbicides used to eradicate non-native plants are not harmful to animals, including humans. In fact, they don’t know that. The truth is that no one knows if herbicides are harmful to animals because there is almost no research that would answer this question. The tests required by law by the Environmental Protection Agency to put new chemicals on the market are very limited. The honeybee is the only insect on which the EPA is required to test chemicals before they are put on the market. No tests are required for butterflies or any other insect.

US Fish & Wildlife funded the research on the Behr’s metalmark butterfly which suggests that herbicides are harmful to butterflies. US Fish & Wildlife is also the co-sponsor and co-funder of the reintroduction of the Mission Blue butterfly on Twin Peaks. Will US Fish & Wildlife advise the Natural Areas Program that herbicide use on Twin Peaks should be stopped?

In a more perfect world we would have the wisdom to stop using pesticides until we had some scientific evidence that they are not harmful to us and the animals with which we share the planet.