期刊
INTERNATIONAL JOURNAL OF PRIMATOLOGY
卷 41, 期 6, 页码 870-900出版社
SPRINGER
DOI: 10.1007/s10764-020-00186-z
关键词
Antipredation; Chimpanzee beds; Chimpanzee nesting patterns; Comfort; Nesting site selection; Nesting tree selection; Thermoregulation
类别
资金
- University of Oslo (Oslo University Hospital)
To understand how animals select resources we need to analyze selection at different spatial levels or scales in the habitat. We investigated which physical characteristics of trees (dimensions and structure, e.g., height, trunk diameter, number of branches) determined nesting selection by chimpanzees (Pan troglodytes) on two different spatial scales: individual nesting trees and nesting sites. We also examined whether individual tree selection explained the landscape pattern of nesting site selection. We compared the physical characteristics of actual (N = 132) and potential (N = 242) nesting trees in nesting sites (in 15 plots of 25 m x 25 m) and of all trees in actual and potential nesting sites (N = 763 in 30 plots of 25 m x 25 m). We collected data in May and June 2003 in Issa, a dry and open savanna habitat in Tanzania. Chimpanzees selected both the site they used for nesting in the landscape and the trees they used to build nests within a nesting site, demonstrating two levels of spatial selection in nesting. Site selection was stronger than individual tree selection. Tree height was the most important variable for both nesting site and tree selection in our study, suggesting that chimpanzees selected both safe sites and secure trees for sleeping.
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