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Wednesday, January 27 • 10:20am - 10:40am
Non-Harvest Mortality of American Marten Martes Americana in the Eastern Upper Peninsula, Michigan

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AUTHORS: Talesha J. Dokes*, Michigan State University; Eric Clark, Inland Fish and Wildlife Department of Sault Ste. Marie; Brad R. Silet, Michigan State University; Rusty W. Aikens, Inland Fish and Wildlife Department of Sault Ste. Marie; John H. Powell,Inland Fish and Wildlife Department of Sault Ste. Marie and Gary J. Roloff, Michigan State University

ABSTRACT: American marten were reintroduced to Michigan starting in the mid-1900s. Currently marten are considered a sustainable resource in the Upper Peninsula (UP) and the signatories to the 2007 Inland Consent Decree each administer a limited trapping season. Although detailed information is collected on recreationally harvested marten, little is known about non-harvest mortality or individual survival in the UP. We partnered with the Inland Fish and Wildlife Department (IFWD) of the Sault Ste. Marie Tribe of Chippewa Indians to trap and radio collar marten within the Hiawatha National Forest of the eastern UP. Our objectives were to identify the sources and quantify the rate of non-harvest mortality. We collared 17 female and 18 male marten since 2013; 69% were adults and 31% were young adult/juveniles. Over the 24 months of our study, confirmed mortality was 29% (10 deaths), 80% where adults. Of the 10 marten mortalities, 4 were attributed to incidental trapping, 4 to predation (based on circumstantial evidence), and 2 to other (collar entrapment and drowning). We observed a higher mortality rate for females than males, 60% and 40%, respectively.

Wednesday January 27, 2016 10:20am - 10:40am EST
Vandenberg A