登入選單

返回Google圖書搜尋

Social Relationships of Female Mandrills (Mandrillus Sphinx)

André Diogo Seno Pereira

出版	Aberdeen University, 2019
URL	http://books.google.com.hk/books?id=oc5OyQEACAAJ&hl=&source=gbs_api

註釋

Old World monkeys form complex social groups in which different individuals form partnerships with different social partners. In these groups, social relationships are dynamic and the levels of sociality of an individual often correlate with its fitness. However, the structure and regulation of social relationships of some Old World monkey species are still enigmatic. This is the case for mandrills, a female-bonded species that forms groups of up to hundreds of members. I used a combination of social network analysis tools and wellestablished statistical tests to explore the dynamics of the social relationships of the mature females of a group of captive mandrills within and across two observation periods. As social relationships are multidimensional, I explored affiliation, association and agonistic interactions, and also characterised grooming interactions in-depth. The results indicate that social relationships were dynamic and that grooming was traded mostly in accordance with the predictions of the Biological Markets theory. Specifically, I found that the structure of the network of the mature females of the group was likely affected by the sexual maturation of a high-ranking female between periods and her consequent inclusion in the network of the mature females of the second period of observation. Nevertheless, I found evidence that the structure of pre-existing social relationships was significantly maintained, in line with previous reports that female Old World monkeys maintain long-term social relationships. I also found evidence for a "baby market" in mandrills, as the maturation of a dependent infant between periods likely influenced the grooming interactions of his mother. Finally, the results also indicate that a female was being socially excluded in the second period of observation, potentially leading to her death ten days after data collection ceased.