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Full-Text Articles in Life Sciences
Effects Of Hierarchical Steepness On Grooming Patterns In Female Tibetan Macaques (Macaca Thibetana), Dong-Po Xia, Xi Wang, Paul A. Garber, Bing-Hua Sun, Lori K. Sheeran, Lixing Sun, Jin-Hua Li
Effects Of Hierarchical Steepness On Grooming Patterns In Female Tibetan Macaques (Macaca Thibetana), Dong-Po Xia, Xi Wang, Paul A. Garber, Bing-Hua Sun, Lori K. Sheeran, Lixing Sun, Jin-Hua Li
Anthropology and Museum Studies Faculty Scholarship
Hierarchical steepness, defined as status asymmetries among conspecifics living in the same group, is not only used as a main characteristic of animal social relationships, but also represents the degree of discrepancy between supply and demand within the framework of biological market theory. During September and December 2011, we studied hierarchical steepness by comparing variation in grooming patterns in two groups of Tibetan macaques (Macaca thibetana), a primate species characterized by a linear dominance hierarchy. Using a focal sampling method, we collected behavioral data from two provisioned, free-ranging groups (YA1 and YA2) at Mt. Huangshan, China. We found …
Chimpanzee (Pan Troglodytes) Responses To Visitors Using Chimpanzee-Friendly Behaviors, Daniella Bismanovsky
Chimpanzee (Pan Troglodytes) Responses To Visitors Using Chimpanzee-Friendly Behaviors, Daniella Bismanovsky
All Master's Theses
Many studies suggest that zoo visitors are a cause of stress among animals; among primates, visitor presence can lead to an increase in aggressive displays, time spent non-visible to the public, and a decrease in overall activity. This study tested the effectiveness of using species-specific behaviors among a group of captive chimpanzees. There were 2 conditions: a control, and an experimental condition in which visitors were asked to adopt a stooped posture or lean on the railing, and show a chimpanzee play face. The visitors stooped their posture, sat, and leaned on the railing significantly more in the experimental condition …