Sensory information and associative cues used in food detection by wild vervet monkeys.
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Understanding animals' spatial perception is a critical step toward discerning their cognitive processes. The spatial sense is multimodal and based on both the external world and mental representations of that world. Navigation in each species depends upon its evolutionary history, physiology, and ecological niche. We carried out foraging experiments on wild vervet monkeys (Chlorocebus pygerythrus) at Lake Nabugabo, Uganda, to determine the types of cues used to detect food and whether associative cues could be used to find hidden food. Our first and second set of experiments differentiated between vervets' use of global spatial cues (including the arrangement of feeding platforms within the surrounding vegetation) and/or local layout cues (the position of platforms relative to one another), relative to the use of goal-object cues on each platform. Our third experiment provided an associative cue to the presence of food with global spatial, local layout, and goal-object cues disguised. Vervets located food above chance levels when goal-object cues and associative cues were present, and visual signals were the predominant goal-object cues that they attended to. With similar sample sizes and methods as previous studies on New World monkeys, vervets were not able to locate food using only global spatial cues and local layout cues, unlike all five species of platyrrhines thus far tested. Relative to these platyrrhines, the spatial location of food may need to stay the same for a longer time period before vervets encode this information, and goal-object cues may be more salient for them in small-scale space.
Published Version (Please cite this version)10.1007/s10071-013-0683-2
Publication InfoTeichroeb, Julie A; & Chapman, Colin A (2014). Sensory information and associative cues used in food detection by wild vervet monkeys. Anim Cogn, 17(3). pp. 517-528. 10.1007/s10071-013-0683-2. Retrieved from https://hdl.handle.net/10161/9184.
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Visiting Assistant Professor in the Department of Evolutionary Anthropology
Julie Teichroeb is a biological anthropologist who studies primate behavioral ecology. Her research focuses on the evolution of sociality, examining group formation, the underlying causes of social organization, and group decision-making. She is particularly interested in the relative influence of social and ecological pressures on the evolution of social organization; so how male and female reproductive strategies influence each other and result in the group size and group compositions that
This author no longer has a Scholars@Duke profile, so the information shown here reflects their Duke status at the time this item was deposited.