Intraspecific variation in the induction of female sexual receptivity in prairie voles

Physiology & Behavior
R L RobertsC Sue Carter

Abstract

Prairie voles (Microtus ochrogaster) are monogamous New World rodents which show geographic variation in social behavior. In this study, parameters of female reproduction which might be related to mating system were compared in prairie voles from eastern Kansas (KAN) versus central Illinois (ILL). KAN females showed a more rapid onset of natural estrus following exposure to a male and were more likely to respond to injections of a low dose (0.5 microg) of exogenous estradiol benzoate than ILL females. Neither mating duration nor pregnancy success after mate removal differed in KAN versus ILL females. These results suggest that ILL voles are less sensitive than KAN voles to the estrus-inducing effects of either endogenous or exogenous estrogen, supporting the hypothesis that variations in reproductive strategy occur among geographically discrete populations of prairie voles.

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Citations

Nov 26, 2010·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Ruiyong WuChengjun Yu
Jul 20, 2002·Physiology & Behavior·Catherine M BowlerC Sue Carter
Oct 17, 2008·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Oliver J BoschLarry J Young
Jul 31, 2012·Reproductive Biology and Endocrinology : RB&E·Alaine C KeebaughLarry J Young
Oct 19, 2004·Physiology & Behavior·Zuoxin Wang, Brandon J Aragona
Feb 14, 2012·Journal of Mammalogy·Loren D HayesLuis A Ebensperger
Dec 8, 2004·Hormones and Behavior·Bruce S CushingNancy L Cushing

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