Comparison of behavioral sequence of copulation between chimpanzees and bonobos |
| |
Authors: | Chie Hashimoto Takeshi Furuichi |
| |
Institution: | (1) Faculty of International Studies, Meiji-Gakuin University, Tokyo, Japan;(2) Primate Research Institute, Kyoto University, Kanrin, Inuyama Aichi, 484-8506, Japan |
| |
Abstract: | We compared sex differences in behaviors leading to copulation of chimpanzees (Pan troglodytes) in the Kalinzu Forest, Uganda with those of bonobos (Pan paniscus) at Wamba, D.R. Congo, using the same definition. Female chimpanzees were more likely to initiate copulation than female bonobos. While most of copulations (96%) were initiated by males in bonobos, among chimpanzees only 63% of copulations were initiated by males. Female bonobos initiated an interaction leading to copulation when males approached them within a short distance. On the other hand, both male and female chimpanzees initiated behavior at a longer distance. Higher proceptivity and a higher copulation rate during the maximal swelling period of female chimpanzees might suggest that they gain greater benefits from a high frequency of copulations than do female bonobos. |
| |
Keywords: | Copulation Pan troglodytes Pan paniscus Proceptivity Sex differences |
本文献已被 PubMed SpringerLink 等数据库收录! |
|