8/31/2023 0 Comments Anubis 2 pc download![]() ![]() The longest-resident male has been in the same group for 5 years or more a conservative estimate of the average length of residence is 3 years. Repeated visits to the study site allow us to document long-term residence of these “cross-migrant” males in their host groups. One subadult male was also captured and marked. Since 1983, we have observed 11 individually identified adult hamadryas immigrants in four anubis groups above the Awash Falls and have trapped and tagged 9 of them. Since the late 1960's, there have been isolated observations of hamadryas males migrating into anubis groups in the Awash National Park, Ethiopia (Nagel, 1973 Kawai and Sugawara, 1976 Sugawara, 1982). Despite clear evidence for migration of adult males at Erer-Gota, Ethiopia (Abegglen, 1984), it is generally believed that a different pattern-dispersal only by female transfer-is found in hamadryas baboons, Papio hamadryas hamadryas (Pusey and Packer, 1987 Pusey, 1988 Stammbach, 1987). Among “savanna” baboons, males are the dispersing sex, and females are philopatric.
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