Effects of Sex and Age on Winter Diet of American Martens in Michigan

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dc.creator Hales, Andrea L.
dc.creator Belant, Jerrold L.
dc.creator Bird, Jacqueline
dc.date.accessioned 2011-04-15T20:16:06Z
dc.date.available 2011-04-15T20:16:06Z
dc.date.issued 2008-09
dc.identifier.citation The Ohio Journal of Science, v108, n4 (September, 2008), 60-64. en_US
dc.identifier.issn 0030-0950 en_US
dc.identifier.uri http://hdl.handle.net/1811/48447
dc.description Author Institution: Department of Biology, Northern Michigan University en_US
dc.description Author Institution: Department of Wildlife and Fisheries, Mississippi State University en_US
dc.description.abstract We investigated whether sex or age influenced winter diet in American martens (Martes americana) from the Upper Peninsula of Michigan by analyzing gut content of 151 individuals trapped during 2000–2004. We identified 433 occurrences of 10 prey species and classified them into six groups based on body size. Overall, marten diets were similar to those reported previously. Proportion of prey groups and kilocalories consumed were generally similar between male and female marten diets, as well as between juveniles and adults. Average dietary breadth (0.46) was comparatively high but within the range reported for other North American studies. Dietary overlap (0.99) was high between males and females and between juveniles and adults. Comparable diets between sexes suggest that size sexual dimorphism was unrelated to prey species consumed. Similarly, diets of juveniles and adults were comparable. Mice and voles occurred most frequently in marten diets; however, squirrels represented the greatest proportion of kilocalories consumed. Future studies of marten diet should emphasize prey abundance. en_US
dc.language.iso en_US en_US
dc.rights Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given. en_US
dc.title Effects of Sex and Age on Winter Diet of American Martens in Michigan en_US
dc.type Article en_US