Abstract

I examined odor selections of beach voles ( Microtus breweri ) during their non-breeding season. Nonbreeding beach voles selected odor of same-sex conspecifics over that of opposite-sex conspecifics or their own (self) odor. Odor-discrimination data were consistent with trap-capture data and greater social tolerance between conspecifics of the same sex. In addition, odor selections of beach voles were compared with those of meadow voles ( Microtus pennsylvanicus ). Odor selections by female beach and meadow voles were for female conspecifics. Dissimilarities in odor selections between male beach voles and meadow voles may be related to intrinsic and extrinsic factors affecting social organization.

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