Group mating among Norway rats II. The social dynamics of copulation: Competition, cooperation, and mate choice

  title={Group mating among Norway rats II. The social dynamics of copulation: Competition, cooperation, and mate choice},
  author={Martha K. McClintock and Joseph J. Anisko and Norman T. Adler},
  journal={Animal Behaviour},
Aggression, Copulation, and Differential Reproduction of Deer Mice (Peromyscus Maniculatus) in a Semi-Natural Enclosure
This study was designed to analyze the interactions of priority of residence, strain, dominance, male capacity, and sperm competition in relation to aggression, copulation, and differential
Male-male interference in a reproductive context: effect of social status in mice
Direct competition between males in a sexual context was tested in stable male pairs and indicated that the dominant male's interest in the female was markedly reduced and exploration of the partition was enhanced when two fem...
Courtship ultrasonic vocalizations and social status in mice
Rats ejaculate prematurely and increase the sperm output during competitive mating
It is found that under competition, there was a shortening of the ejaculation latency due to the reduction in the inter-intromission interval and in the number of intromissions and the sperm number increased drastically but the seminal plug maintain its size and weight characteristics.
Sperm Competition and Mate Guarding in Meadow Voles (Microtus pennsylvanicus)
Comparing paternity of litters when female meadow voles were exposed to two males sequentially or simultaneously found finding and fertilizing females may be more important in low-density populations, conclusions consistent with these population densities for several years prior to capture.


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.
Female Incitation of Male Competition: A Mechanism in Sexual Selection
A mechanism by which females facilitate mating with a superior genotype, as reflected by age, social rank, and sexual experience, without exerting choice is described.
Sexual Exhaustion and Recovery in the Male Rat*
As measured by ejaculation-frequency, the curve of sexual recovery is negatively accelerated and probably reaches asymptote after 7 to 10 days of rest, and various other measures in addition to ejaculations-frequency support this conclusion.