Abstract # 132:

Scheduled for Friday, August 19, 2005 04:15 PM-04:30 PM: Session 10 (Mayfair Room) Oral Presentation


J. M. Kamilar
Dept. of Anthropology, Stony Brook University, Stony Brook, NY 11794-4364, USA
     A macroecological approach was employed to examine the effects of environmental characteristics and geography on Asian anthropoid community structure. Environmental characteristics shape the possible niches in a community, providing suitable habitats to some species and not others. Therefore, communities exhibiting similar environmental characteristics are more likely to display a more similar species composition. Additionally, as the geographic distance between communities increases, dispersal between sites is more limited and the probability of historical vicariance increases. Therefore, anthropoid communities in close proximity to each other are likely to display a similar composition of species. Data for twenty-one Asian primate communities were gathered from the published literature. Partial Mantel tests were conducted to examine the correlation between geographic distance and the similarity of anthropoid primate structure among communities while controlling for environmental similarity among sites. A similar analysis was conducted between the similarity of anthropoid primate structure and environmental similarity among communities with geographic distance held constant. The results showed that there was a significant negative correlation between the geographic distance among communities and the similarity of their species composition when controlling for environmental similarity (r = -0.55, P < 0.001). There was no relationship between the similarity of species composition among communities and their environmental characteristics, when controlling for geographic distance (r = 0.05, P > 0.67). This suggests that distance between communities is more important than broad scale environmental variables when determining community similarity.