Intra-uterine position and anogenital distance in house mice: consequences under field conditions
Article Abstract:
Intra-uterine position influences behavior and reproduction in mice. Studies conducted on the wild house mice (Mus domesticus) show that male mice having larger anogenital distance exhibit more aggression, have larger home range size, and have more chances to disperse than males having smaller anogenital distance. Female mice with smaller anogenital distance are reproductively more active and have a higher rate of pregnancies than females with larger anogenital distance. In utero exposure to testosterone increases reproductive success in males and decreases it in females.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Female mate choice in a subsocial beetle: male phenotype correlates with helping potential and offspring survival
Article Abstract:
Choice experiments and behavioral analyses were conducted to determine the influence of male size phenotype on mate choice among female nocturnal desert beetles, Parastizopus armaticeps. Larger males dig deeper burrows. This contributes to higher offspring survival rates. The choice is made by the female based on mass and not courtship activities or dominance status. This preference for a male phenotype that increases offspring survival ensures female reproductive success.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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Free female mate choice in house mice affects reproductive success and offspring viability and performance
Article Abstract:
The assumption of sexual dialectis theory Feminism and Evolutionary Biology, was tested using house mice, Mus musculus. Progeny performance and viability were tested both in the laboratory and in outdoor field enclosures. Male and female progeny from preferred matings were found to establish larger home ranges and built better nests than progeny from nonpreferred matings.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2000
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