Seasonal field metabolic rates of American martens in Wisconsin

Jonathan H. Gilbert; Patrick A. Zollner; Adam K. Green; John Wright

Treesearch

Seasonal field metabolic rates of American martens in Wisconsin

Informally Refereed

Authors:

Jonathan H. Gilbert, Patrick A. Zollner, Adam K. Green, John Wright

Year:

2009

Type:

Scientific Journal

Station:

Northern Research Station

Source:

American Midland Naturalist. 162: 327-334.

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Abstract

We report on FMR of free-living American martens (Martes americana) in autumn and winter in northern Wisconsin. Mean body mass was significantly higher in males (1099 ± 43 [S.E.] g) than females (737 ± 28 g), with no significant difference by season. Daily mass change rates of martens did not differ from zero, and mass change rate and percent of body fat did not differ by gender or season. These data are consistent with our expectation that non-reproductive martens balance their energy budget on a near daily basis, even in winter, and rely little on body energy reserves.

Citation

Gilbert, Jonathan H.; Zollner, Patrick A; Green, Adam K.; Wright, John L. 2009. Seasonal field metabolic rates of American martens in Wisconsin. American Midland Naturalist. 162: 327-334.