oa African Zoology - The size, composition and fissioning in baboon troops (Papio ursinus Kerr, 1792)

Volume 7, Issue 1
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



Several baboon troops were studied during a two year study period. Sub-troop formation in troops was regularly observed and such sub-troops are defined as temporary or semi-permanent. Sub-troops are either normally or abnormally composed as far as age and sex classes are concerned. A temporary sub-troop sleeps apart from the main sub-troop, and these sub-troops reunite the following morning. A semi-permanent sub-troop separates from the main sub-troop for several days. During this period the semi-permanent sub-troop only joins the main sub-troop at sleeping places. The behaviour of certain males is prominent when sub-troops are formed. This study revealed that the baboon troop is wrongly referred to as a stable unit.

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