Kinship and association in communally roosting black vultures

Article Abstract:

A study was conducted to determine whether kin associations exist between the adult coalition members of black vultures, Coragyps atratus, based on DNA fingerprinting results. Only dyads of breeding adults which were not mated with one another were considered in the study. A Mantel test indicated a positive relationship between genetic similarity and kinship behavior among black vultures. The results can be attributed to the vultures' use of communal roosting sites and their preference to use a single roost on the same night.

Sexual behavior, Sexual behavior in animals, Animal sexual behavior, Vultures

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Individual differences in den maintenance effort in a communally dwelling mammal: the Eurasian badger

Article Abstract:

A study was conducted to determine the functions of the individual badger Meles meles in the den maintenance activities of digging and bedding at their communal setts. Results show that 60-90% of the digging and bedding tasks were done by both adult and yearling Eurasian badgers. It was also observed that male badgers do more digging and collect more bedding as compared to their female counterparts.

Animal behavior, Animal psychology, Badgers

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To nest communally or not to nest communally: a review of rodent communal nesting and nursing

Article Abstract:

Research of communal nursing and nesting in plural, singular and eusocial breeding rodents is presented. The hypotheses of the benefits of philopatry and ecological constraints are discussed, together with adaptive and nonadaptive rodent communal nursing hypotheses.

Rodents, Communal living, Social behavior in animals, Animal social behavior, Adaptability (Psychology)

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