|SREL Reprint #1950|
Seasonal Effects on Sex Ratios in Moles Collected by Trapping
GREGORY D. HARTMAN
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.