Structure and Social Dynamics of Harem Groups in Artibeus jamaicensis (Chiroptera: Phyllostomidae)

作者: J. Ortega , H. T. Arita

DOI: 10.2307/1383168

关键词: HaremArtibeusEcologyBiologyCaveZoologyYucatan peninsulaSocial dynamicsLower degreeGroup cohesivenessSeasonal breeder

摘要: The Jamaican fruit-eating bat ( Artibeus jamaicensis ) is one of the most common Neotropical chiropterans, but comparatively little known about structure and dynamics its social groups. In two caves Yucatan Peninsula, Mexico, we found fruiteating bats forming harem groups, consisting 4–18 females 1–2 males, inside solution cavities that develop on ceiling caves. Other individuals roosted solitarily in same caves, outside cavities. We identified three types males: dominants (one each group), subordinates (present only largest harems), satellites (not associated with a harem). Dominants were larger heavier than males other categories. During 2-year study, groups always cavity presented high degree stability, few changes composition. Satellite solitary females, contrast, shifted roosting sites frequently never formed cohesive Adult performed more movements from to those less frequent during breeding season. Harems subordinate large differ phyllostomids lower cohesiveness shown by females.

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