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Differentiation of Female Positions in Hamadryas One‐Male‐Units
Author(s) -
Sigg Hans
Publication year - 2010
Publication title -
zeitschrift für tierpsychologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.739
H-Index - 74
eISSN - 1439-0310
pISSN - 0044-3573
DOI - 10.1111/j.1439-0310.1980.tb01054.x
Subject(s) - habitat , independence (probability theory) , peripheral , biology , geography , zoology , geodesy , ecology , mathematics , statistics , medicine
Three freeliving one‐male‐units (OMU), each with two ♀♀ and several young were followed on the daily march and at the sleeping cliff. Three more OMUs of the same size were studied during experiments in a field enclosure. In all OMUs the ♀♀ could be differentiated by their spatial position in the group. According to their positions the ♀♀ exhibited different behaviors. The central ♀♀ were more socially engaged, while the peripheral ♀♀ exhibited more habitat‐oriented behaviors. The central‐peripheral differentiation appeared to be stabilized by differences between the ♀♀: The central ♀♀ tended to be younger and higher in rank; the peripheral ♀♀ showed a greater independence and efficiency in habitat‐related behavior.