GROUP MATING AMONG NORWAY RATS .1. SEX-DIFFERENCES IN THE PATTERN AND NEUROENDOCRINE CONSEQUENCES OF COPULATION
GROUP MATING AMONG NORWAY RATS .1. SEX-DIFFERENCES IN THE PATTERN AND NEUROENDOCRINE CONSEQUENCES OF COPULATION
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DOI：
10.1016/s0003-3472(82)80051-1
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发表时间：
1982-01-01
期刊：
影响因子：
2.5
通讯作者：
ANISKO, JJ
中科院分区：
文献类型：
--
作者：
MCCLINTOCK, MK;ANISKO, JJ
在实验室半自然环境下，对褐家鼠群体交配模式进行了研究。在给定的交配过程中，每只发情的雌性都与每只雄性交配；同样，每只雄性都与每只发情的雌性交配。虽然雄性和雌性个体的交配次数相似，但在顺序和时间模式上存在巨大的性别差异。雄性以多次射精模式交配，当几个雌性处于发情期时，雄性有更多的射精序列。相比之下，雌性接受的插入和射精的顺序是随机的，而不是按照雄性射精的顺序。雄性的交配间隔比雌性短，这种时间上的性别差异是由雌性的求偶方式和雄性的接近方式决定的。这些性别差异被用来讨论适用于该物种中雄性和雌性性行为的不同分析单位。在群体交配中出现的交配时间模式的性别差异与在调节家庭菌株成功繁殖的神经内分泌反射的时间参数中已知的性别差异平行。
The copulatory pattern of groups of rats (R. norvegicus) was studied in the laboratory in a seminatural environment. In a given mating session, every estrous female copulated with each male; likewise, every male copulated with each estrous female. While individual males and females experienced similar amounts of copulation, there were dramatic sex differences in sequence and temporal pattern. Males mated in a multiple intromission pattern and had more ejaculatory series when several females were in estrus. In contrast, females received intromissions and ejaculations in a random order, not in the sequence of a male ejaculatory series. Males copulated at shorter intervals than females did, a temporal sex difference that was determined by the pattern of female solicitations and male approaches. These sex differences are used to discuss the different units of analysis that are appropriate for male and female sexual behavior in this species. The sex differences in the temporal pattern of copulation which emerged during group mating parallel the known sex differences in the temporal parameters of the neuroendocrine reflexes which mediate successful reproduction in the domestic strain.