摘要:

In most mammalian species, males tend to leave their natal group and disperse farther than females, while females tend to be philopatric. Primates generally follow this rule, although long-term studies of a variety of species are revealing an increasing number of exceptions. This paper reviews dispersal patterns in 3 subspecies of savanna baboons (Papio cynocephalus cynocephalus, P. cynocephalus anubis, P. cynocephalus ursinus) which exhibit very similar patterns of social organization. Males usually disperse from the natal group at 8–10 years of age. Female dispersal is rare but well documented. Inbreeding avoidance as well as enhanced mating opportunities are suggested as ultimate causes of dispersal. Several proximate factors implicated in the timing of dispersal events are also reviewe

ISSN:0015-5713    

DOI:10.1159/000156657

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

The polytypic Cercopithecus mitis Wolf, 1822, species is widely distributed in Africa, from southern Somalia in the north to the eastern Cape province of the Republic of South Africa in the south. The samango monkeys at Cape Vidal (Cercopithecus mitis erythrarchus) are found close to (within 500 km of) the southern limit of the range of the species group. We examine the proposition that, due to greater seasonality of climate and food availability at southern latitudes, samango activity patterns define the extent of the behavioural response capabilities of the C. mitis species group, both for the troop as a whole and for individual age-sex classes. Activity patterns are described. Although samangos appear to have activity patterns grossly similar to those of other C. mitis populations, the seasonal and diurnal timing of these activities is influenced by food abundance, temperature and day length. Activity patterns are compared across the C. mitis group, leading to the conclusion that samango activity is not indicative of the behavioural limits of the species group. Age-sex class differences in activity are briefly examined and discussed; age-sex class differences in activity seem to underlie differences in foraging strategy between the classes.

ISSN:0015-5713    

DOI:10.1159/000156658

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156659

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156660

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156661

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156662

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156663

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156664

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156665

出版商:S. Karger AG    

年代:1992

数据来源: Karger

ISSN:0015-5713    

DOI:10.1159/000156666

出版商:S. Karger AG    

年代:1992

数据来源: Karger