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Sylvilagus palustris hefneri
''Sylvilagus palustris hefneri'' (Lazell, 1984), common name Lower Keys marsh rabbit, is an endangered subspecies of marsh rabbit named after ''Playboy'' founder Hugh Hefner.〔(CBS News (9 December 2008) )〕〔(Curiosities of Biological Nomenclature )〕
==General==
''S. p. hefneri'' was federally recognized as an endangered species on June 21, 1990. The urbanized Florida Keys have left the rabbits with a very small home range, making them more vulnerable to threats such as pollution, vehicular road kill, and predation by stray cats. Forys and Humphrey (1999) predicted a gradual decline in ''S. p. hefneri'' abundance and extinction within 50 years (of 1995).〔Forys, E.A., and S.R. Humphrey. 1994. Biology of the Lower Keys marsh rabbit at Navy lands in the Lower Florida Keys. Semi-annual performance report no. 3 in files of the Florida Game and Fresh Water Fish Commission; Tallahassee, Florida.〕 The Lower Keys marsh rabbit population is estimated to contain approximately 150 individuals.〔U.S. Fish and Wildlife Service (). 1994. Recovery Plan for the Lower Keys marsh rabbit. U.S. Fish and Wildlife Service; Atlanta, Georgia.〕 In 2008, LaFever ''et al.'' performed viability assays to determine current extinction rates. They predicted extinction within 10 years if action is not taken immediately.〔LaFever, David, et al. "Predicting the Impacts of Future Sea-Level Rise on an Endangered Lagomorph." Environmental Management 40.3 (2007): 430-437.〕 They recommend urgent management of predatory stray cats, and restoration of marshes as possible solutions to reduce the extinction rate of ''S. p. hefneri''.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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