کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2418937 1104360 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatial grouping in behaviourally solitary striped hyaenas, Hyaena hyaena
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Spatial grouping in behaviourally solitary striped hyaenas, Hyaena hyaena
چکیده انگلیسی

We investigated spatial organization and patterns of interaction in a population of the little-known striped hyaena, Hyaena hyaena. We use the resulting data to test hypotheses of group formation that predict that female striped hyaenas will be solitary in response to overdispersion of food resources and males will be solitary in response to overdispersion of females. Based primarily on anecdotal or historical information, striped hyaenas have been described as solitary. We show that, as predicted, striped hyaenas of both sexes are behaviourally solitary. However, they form stable, polyandrous spatial groups composed of multiple males and a single female. We suggest that male coalition formation may be the result of male strategies to optimize trade-offs between the number of female ranges defended and the effectiveness of that defence when females are solitary and maintain large territories. Nevertheless, the joint male defence of a territory (of any size) containing only a single female would not be predicted by any major hypothesis for the evolution of group living, in this or any other species.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Behaviour - Volume 75, Issue 3, March 2008, Pages 1131–1142
نویسندگان
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