Impact of Humans on Long-Distance Communication Behaviour of Eastern Chimpanzees (Pan troglodytes schweinfurthii) in the Northern Democratic Republic of the Congo
In: Folia PrimatologicaSearch for other papers by Thurston C. Hicks in
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We systematically recorded all long-distance chimpanzee vocalizations and tree drums over a 26-month study period in 13 forest regions in the Democratic Republic of the Congo. We found that the frequency of chimpanzee vocalizations and tree drums was considerably higher in the remote Gangu Forest than in other forest regions closer to human settlements and roads. We present evidence indicating that chimpanzees may reduce their levels of vocalizations in areas characterized by high levels of human hunting. The chimpanzees appear to have the behavioural flexibility necessary to modify their behaviour in areas where humans are a major threat. We discuss the possible consequences of this reduction in vocalization rate on the social system of the chimpanzees.
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| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 511 | 114 | 30 |
| Full Text Views | 38 | 2 | 0 |
| PDF Views & Downloads | 69 | 4 | 0 |
Impact of Humans on Long-Distance Communication Behaviour of Eastern Chimpanzees (Pan troglodytes schweinfurthii) in the Northern Democratic Republic of the Congo
In: Folia PrimatologicaSearch for other papers by Thurston C. Hicks in
Current site
Google Scholar
PubMed
Search for other papers by Peter Roessingh in
Current site
Google Scholar
PubMed
Search for other papers by Steph B.J. Menken in
Current site
Google Scholar
PubMed
We systematically recorded all long-distance chimpanzee vocalizations and tree drums over a 26-month study period in 13 forest regions in the Democratic Republic of the Congo. We found that the frequency of chimpanzee vocalizations and tree drums was considerably higher in the remote Gangu Forest than in other forest regions closer to human settlements and roads. We present evidence indicating that chimpanzees may reduce their levels of vocalizations in areas characterized by high levels of human hunting. The chimpanzees appear to have the behavioural flexibility necessary to modify their behaviour in areas where humans are a major threat. We discuss the possible consequences of this reduction in vocalization rate on the social system of the chimpanzees.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 511 | 114 | 30 |
| Full Text Views | 38 | 2 | 0 |
| PDF Views & Downloads | 69 | 4 | 0 |
