Skip to main content

Scientists Call B.S. -- Bad Science, That Is -- on Wolf Delisting

Support Provided By

The U.S. Fish and Wildlife Service's move to strip gray wolves from protection under the Endangered Species Act (ESA) is based on insufficient science, according to a report by an independent panel of scientists. In response to the report, USFWS has again opened public comment on its wolf delisting proposal until March, meaning a bit more delay before gray wolves are potentially removed from the Endangered Species List.

USFWS now expects to make its final decision on delisting the wolf by the end of 2014.

In the report, produced by the National Center for Ecological Analysis and Synthesis (NCEAS) at UC Santa Barbara, an independent panel of wildlife biologists from universities, the California Academy of Sciences, and the Natural Resources Defense Council agree unanimously that more study is needed before the wolf is removed from ESA protection.

According to the report, the delisting proposal was based in part on a single October 2012 paper that contends eastern wolves belong to the species Canis lycaon, distinct from gray wolves in the western half of North America belonging to the species Canis lupus. If the eastern part of the wolf's historic range was occupied by a different species, according to USFWS' rationale, then Canis lupus now occupies enough of its historic range to be considered recovered. It can thus be removed from ESA protection.

But the 2012 paper, "An Account of the Taxonomy of North American Wolves From Morphological and Genetic Analyses" by biologist Steven M. Chambers and three colleagues, is not universally considered valid by wolf biologists. Scientists on the NCEAS panel pointed out that Chambers et al's conclusions were based on a few genetic differences between wolf populations that were potentially valid, but not conclusive.

What's more, Chambers and his colleagues are all biologists in the employ of USFWS, and their paper was published in the USFWS journal North American Fauna. There's nothing necessarily nefarious about that: North American Fauna publishes some fine work, and many USFWS biologists are among the best in their fields.

The panel did not reject Chambers et al's conclusions outright. Nonetheless, the panel agreed unanimously that Chambers et al did not represent the "best available science," which is the usual legal standard to which USFWS rulemaking is expected to conform.

The upshot: if it isn't yet settled that eastern wolves are a distinct species, then it's not yet settled whether the species to which western wolves belong has recovered over enough of its range to no longer need protection. And without that settled science, USFWS' delisting is called into question.

Reaction from wolf defenders was swift and jubilant Friday. "The nation's top wolf scientists today confirmed what we and millions of American's have been saying for months: The job of wolf recovery is far from complete," said Noah Greenwald, endangered species director at the Center for Biological Diversity. "This peer review is a major blow to the Obama administration's highly political effort to prematurely remove protections for wolves."

"Peer review is an important step in our efforts to assure that the final decision on our proposal to delist the wolf is based on the best available scientific and technical information," said USFWS Director Dan Ashe. "We thank the National Center for Ecological Analysis and Synthesis for conducting a transparent, objective and well-documented process. We are incorporating the peer review report into the public record for the proposed rulemaking, and accordingly, reopening the public comment period to provide the public with the opportunity for input."

As mentioned earlier, public comment on the delisting proposal has now been reopened, the third time the comment period has been so extended on the controversial proposal. Members of the public wishing to comment on the wolf delisting now have until March 27, and more information, as well as an online copy of the NCEAS review of the proposal's science, can be found on the USFWS's gray wolf recovery page.

Support Provided By
Read More
A row of cows stands in individual cages along a line of light-colored enclosures, placed along a dirt path under a blue sky dotted with white puffy clouds.

A Battle Is Underway Over California’s Lucrative Dairy Biogas Market

California is considering changes to a program that has incentivized dairy biogas, to transform methane emissions into a source of natural gas. Neighbors are pushing for an end to the subsidies because of its impact on air quality and possible water pollution.
A Black woman with long, black brains wears a black Chicago Bulls windbreaker jacket with red and white stripes as she stands at the top of a short staircase in a housing complex and rests her left hand on the metal railing. She smiles slightly while looking directly at the camera.

Los Angeles County Is Testing AI's Ability To Prevent Homelessness

In order to prevent people from becoming homeless before it happens, Los Angeles County officials are using artificial intelligence (AI) technology to predict who in the county is most likely to lose their housing. They would then step in to help those people with their rent, utility bills, car payments and more so they don't become unhoused.
blue themed graphic including electric vehicles are charging stations, wind turbines and trees, 2023 in reference to year

A Look Back at Climate Solutions In 2023

The U.S. may have a long way to go in its decarbonization goals, but these stories show signs of progress in climate solutions.