Group mating among Norway rats I. Sex differences in the pattern and neuroendocrine consequences of copulation

  title={Group mating among Norway rats I. Sex differences in the pattern and neuroendocrine consequences of copulation},
  author={Martha K. McClintock and Joseph J. Anisko},
  journal={Animal Behaviour},
Copulatory pattern of male rats in a multiple partner choice arena.
The MPCA reduces significantly the ejaculatory pattern in male rats, resulting in shorter mounting and ejaculation latencies in comparison with rats in the SA.
Influence of time of mating and paced copulation on induction of pseudopregnancy in cyclic female rats.
The ability of cervical-vaginal stimulation to induce pseudopregnancy therefore increases toward the end of the period of oestrus, but the behavioural mechanisms which regulate receipt of such stimulation remain constant during that time.
Variations in maternal care associated with differences in female rat reproductive behavior in a group-mating environment.
No pregnancy rate difference was seen between the two female phenotypes, demonstrating that variation in maternal care received results in two mating strategies that are both reproductively successful under group-mating conditions.
Sociosexual behaviors and reproductive success in a group of rats housed in seminatural environment —
Female sexual behavior was irrelevant of number of offspring, yet males with more intromissions and ejaculations achieved greater reproductive success and both mount frequency and non-sexual interactions were unrelated to male fertility as well as the order of ejaculations did not determine reproductive advantage.
Maternal influences on the sexual behavior and reproductive success of the female rat


The Role of the Female During Copulation in Wild and Domestic Norway Rats (Rattus Norvegicus)
A factorial design demonstrated that the female Norway rat has the major role determining the amount and timing of copulation once mating begins, and the population pattern of a wild female was characterized by fewer ejaculatory series and more intromissions at longer intervals before the first ejaculation than the patterns of a domestic female.
Copulatory behavior of Syrian golden hamsters in a one-male two-female test situation
Should copulation occur between one male and two females in the natural habitat, it would appear to be of reproductive advantage to the male, with no detriment to the female.
Sexual behaviour and reproductive competition in male wild and domestic Norway rats
  • E. Price
  • Biology, Psychology
    Animal Behaviour
  • 1980
Influence of female copulatory behavior on the induction of pseudopregnancy in the female rat
Maternal age and male behavior in relation to successful reproduction by female rats (Rattus norvegicus).
It is concluded that multiple series may function as a behavioral mechanism for prolonging the female's active reproductive life.
Storage of copulatory stimulation in the female rat.