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Use and Partitioning of Montane Habitat by Small Mammals

Mark C. Belk, H. Duane Smith and John Lawson
Journal of Mammalogy
Vol. 69, No. 4 (Nov., 1988), pp. 688-695
DOI: 10.2307/1381623
Stable URL: http://www.jstor.org/stable/1381623
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Use and Partitioning of Montane Habitat by Small Mammals
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Abstract

Structure of the microhabitat used by four species of rodents in a montane environment was investigated using principal-component analysis of trap-site characteristics. Most species of rodents were associated with fallen logs and brush during June but microhabitat use shifted to areas of more herbaceous growth in July-August. This shift was concurrent with rapid herbaceous growth. Females of each species occupied more structured microhabitat than males of the same species. Differential segregation of habitat by sex may be a function of the variability of resource use by the species as a whole. Unused microhabitat does not differ from random with respect to vegetative structure, and reasons for nonuse probably differ among sites.

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