SREL Reprint #1950





Seasonal Effects on Sex Ratios in Moles Collected by Trapping

Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, 87131, and
Savannah River Ecology Laboratory, Drawer E, Aiken, South Carolina 29802


ABSTRACT.-Sex ratios, based on capture data, were analyzed for the moles Parascalops breweri, Scalopus aquaticus and Talpa eurapaea. In all three species, significantly more males than females were captured during the 1st 6 mo of the year, which roughly corresponds to the annual breeding season. In S. aquaticus and T. europaea, more males begin to be captured as the testes begin their annual increase in mass. Outside the breeding season, the observed sex ratio did not statistically differ from 1:1 for any of the species examined.

SREL Reprint #1950

Hartman, G.D. 1994. Seasonal effects on sex ratios in moles collected by trapping. The American Midland Naturalist 133:298-303.

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