Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity

Krüger O, Affeldt E, Brackmann M, Milhahn K (1998)
INTERNATIONAL JOURNAL OF PRIMATOLOGY 19(2): 287-297.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
We documented and assessed rite influence of chimpanzee activity on group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, from July to September, 1994 and in February, and March 1996. The population density of colobus is very high: 347 individuals per km(2). Density differed outside activity centers of chimpanzees (525 individuals per km(2)) and within the centers (186 per km(2)). We identified a total of 24 colobus groups, ranging between 3 and 13 individuals. Of the 24 groups, 22 were one-male groups. Groups were smaller and the percentage of subadults and juveniles was lower in groups within chimpanzee activity centers. Estimates of home ranges are between 1.7 and 6.2 ha, but neighboring home ranges overlapped less than or equal to 80%. Only a territory of approximately 0.5 ha was defended by the alpha male.
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Zeitschriftentitel
INTERNATIONAL JOURNAL OF PRIMATOLOGY
Band
19
Zeitschriftennummer
2
Seite
287-297
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Krüger O, Affeldt E, Brackmann M, Milhahn K. Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity. INTERNATIONAL JOURNAL OF PRIMATOLOGY. 1998;19(2):287-297.
Krüger, O., Affeldt, E., Brackmann, M., & Milhahn, K. (1998). Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity. INTERNATIONAL JOURNAL OF PRIMATOLOGY, 19(2), 287-297. doi:10.1023/A:1020383600015
Krüger, O., Affeldt, E., Brackmann, M., and Milhahn, K. (1998). Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity. INTERNATIONAL JOURNAL OF PRIMATOLOGY 19, 287-297.
Krüger, O., et al., 1998. Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity. INTERNATIONAL JOURNAL OF PRIMATOLOGY, 19(2), p 287-297.
O. Krüger, et al., “Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity”, INTERNATIONAL JOURNAL OF PRIMATOLOGY, vol. 19, 1998, pp. 287-297.
Krüger, O., Affeldt, E., Brackmann, M., Milhahn, K.: Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity. INTERNATIONAL JOURNAL OF PRIMATOLOGY. 19, 287-297 (1998).
Krüger, Oliver, Affeldt, E, Brackmann, M, and Milhahn, K. “Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity”. INTERNATIONAL JOURNAL OF PRIMATOLOGY 19.2 (1998): 287-297.