title: Copulatory behavior of pine voles (Microtus pinetorum).
abstract: 7 male and 6 female pine voles, Microtus pinetorum, were observed in a total of 26 tests of copulatory behavior. They displayed a pattern with no lock intravaginal thrusting, ejaculation possible on a single insertion, and multiple ejaculations. The first ejaculatory series required approximately 5 min, with a mean of five intromissions and 36 thrusts. Post-ejaculatory intervals following the first series averaged 16 min. and increased in successive series.
mesh_terms: D000367:Age Factors; D000818:Animals; D003411:Arvicolinae / Q000502:physiology*; D003307:Copulation; D004542:Ejaculation; D004958:Estradiol / Q000494:pharmacology; D004971:Estrus / Q000187:drug effects; D005260:Female; D008297:Male; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D011930:Reaction Time; D012377:Rodentia / Q000502:physiology*; D012527:Satiation; D013045:Species Specificity; D013997:Time Factors
chemical_list: D011374:Progesterone; D004958:Estradiol