In early October, the US Fish & Wildlife Service reversed its 2011 decision to list Pacific walrus as ‘threatened with extinction’, saying they could not “determine with certainty that walruses are likely to become endangered “in the foreseeable future.” [details below]
I have argued that the 2008 decision by the USFWS to list polar bears as ‘threatened’ is similarly lacking in certainty (Crockford 2017) and as for walrus, the previous determination of ‘threatened’ for polar bears was premature and should be reversed.
A prominent biology colleague and I recently put it this way in a newly published essay:
“Is it ethical or fair to the many citizens impacted directly and indirectly by the 2008 polar bear ruling for the FWS to allow polar bears to remain on the Endangered Species List?”
Read our piece in the winter 2018 issue of RANGE Magazine (open access), authored by myself and Dr. Valerius Geist, professor emeritus of environmental science at the University of Calgary, Alberta.
Crockford, S.J. and Geist, V. 2018. Conservation Fiasco. Range Magazine, Winter 2017/2018, pg. 26-27. Pdf here.
PS. You’ll find an excellent piece on wildfires by biologist Jim Steele in the same issue.
See also Crockford, S.J. 2017. Testing the hypothesis that routine sea ice coverage of 3-5 mkm2 results in a greater than 30% decline in population size of polar bears (Ursus maritimus). PeerJ Preprints 2 March 2017. Doi: 10.7287/peerj.preprints.2737v3 Open access. https://doi.org/10.7287/peerj.preprints.2737v3
Details on the USFWS decision on the walrus is below. Note that like the walrus, if ESA protection on the polar bear was reversed, the bears would still be strongly protected under the Marine Mammal Protection Act (as they have been since 1972), and like the walrus, polar bears have shown an ability to adapt that was not foreseen in 2007 (as evidenced by their failure to die off droves in response to recent sea ice declines).