The Carnivore Coexistence Collaborative is a clearing-house for scientists to comment formally on policy, using the best available science and legal scholarship, to inform the public.


Begun in 2015, CCC posts open letters from scientists to the government addressing carnivore conservation policy. The letters, a one-sentence summary of each, and a registry of funding received by Adrian Treves is presented below the list of names, for transparency and full disclosure of potential conflicts of interest.


Endangered Species Day 2016: 968 scientists and scholars petition the federal government to make determinations under the Endangered Species Act based solely on the best scientific and commercial data available (16 USC § 1531). See the scientific petition sent to Secretaries Jewell and Pritzker (of the U.S. Departments of Interior and Commerce).


Working with the Union of Concerned Scientists: Scientists Push for Independent Science at the Fish and Wildlife Service.

Scientists working together to advocate for better use of science in species listing and delisting decisions can lead to real change in ESA implementation.

In 2015, a group of scientists, working with the Union of Concerned Scientists and Project Coyote, launched a petition asking the Department of the Interior (DOI) and the Department of Commerce (DOC) to follow a process for obtaining independent scientific advice on listing and delisting decisions under the Endangered Species Act (ESA) See the scientific petition sent to Secretaries Jewell and Pritzker (of the U.S. Departments of Interior and Commerce).

. Led by UCS Science Network member and associate professor at the University of Wisconsin-Madison Adrian Treves and attracting nearly a thousand signatories, the scientists’ letter outlines how the ESA mandate for best available science could be improved by relying on external, independent scientific input, without interference from non-scientists. The scientists asked the DOI and DOC to entrust the scientific evaluation of species listing and de-listing determinations to an external committee of scientists who are best suited to assess the scientific evidence and make a public recommendation to the agency, based solely on the best scientific and commercial data available, as the ESA requires.

Following the petition launch, the FWS issued a new and improved peer review policy for the agency. The new policy is a step forward in safeguarding the science that informs endangered species listing; it provides a clear and consistent, agency-wide framework that improves the separation between scientific status assessments and policy decisions, provides more clarity around agency procedures when decisions are controversial, and increases transparency (Goldman et al. 2016). While the provisions could be stronger in a few areas, the new policy takes strong steps toward more robust and transparent peer-review at the agency.


Research funding won by Adrian Treves as of 14 May 2016, which we provide for transparency and full disclosure.


20 February 2016 : Comments on wolf management and control operations in Michigan.


November 30, 2015 : 70+ scientists, legal experts, and scholars recommended that wolves be kept under ESA protection.


October 28, 2015 : Dr. Adrian Treves commented on the Oregon state wolf delisting proposal. He found (1) Oregon’s delisting criteria have not been met, and (2) The main threat to wolf population viability is not adequately understood by any state or federal agency yet, therefore the expected benefits of delisting are unlikely to manifest and the likely costs are not well addressed by current regulatory mechanisms..

February 2016 Multiple scientists weigh in on Oregon's wolf delisting process.


June 13, 2014 and October 17, 2014: We opposed proposed predator killing derbies and wildlife killing contests as serving no value for management or science, and contrary to the government agency policies responsible for land and wildlife management.


Petition to USFWS to list the Florida black bear hunt as federally threatened or endangered.


Affidavit for an amicus brief filed by plaintiffs charging the Florida black bear hunt was not science-based.


Letter to the U.S. Fish & Wildlife Service from scientists concerned about Wisconsin wolf policy and management. (updated October 15th, 2014).

Click here for the government documents we cite.


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