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Male dominance,female choice and male copulatory behavior in two species of voles (Microtus ochrogaster and Microtus montanus)
Authors:Lawrence E Shapiro  Donald A Dewsbury
Institution:(1) Department of Psychology, University of Florida, 32611 Gainesville, Florida, USA
Abstract:Summary Female preferences for dominant males in prairie and montane voles were analyzed in two different test situations. In the first, prairie vole females preferentially spent time in proximity to dominant versus subordinate males which were housed behind a wire mesh screen. In a two-male tether test prairie voles females both preferentially associated and mated with dominant males. Montane voles, on the other hand, showed no preference in either test situation. The baseline copulatory behavior of naive montane vole males which became dominant differed significantly from those which became subordinate; no such differences were evident in the baseline copulatory behavior of naive praire voles. One hour following dominance testing, there was no difference evident between dominant and subordinate males of either species but there was a general facilitation of male copulatory behavior in both species, the effect being of greater magnitude in montane voles.
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