Abstract # 13157 Event # 132:

Scheduled for Friday, August 10, 2018 11:45 AM-12:00 PM: (Chula Vista ) Oral Presentation


INTERSPECIFIC DIFFERENCES IN SENSORY FORAGING BEHAVIOR AMONG SYMPATRIC PLATYRRHINES

C. C. Veilleux2, C. Hiramatsu1, S. Webb2, F. Aureli3, C. M. Schaffner3, S. Kawamura4 and A. D. Melin2,5
1University of Calgary, Department of Anthropology and Archaeology, Calgary, Alberta, USA, 2University of Calgary, 3Instituto de Neuroetología, Universidad Veracruzana, 4Department of Integrative Biosciences, University of Tokyo, 5Department of Medical Genetics, University of Calgary
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     Information regarding the roles played by sensory systems during primate foraging has grown dramatically over the past thirty years, with substantial attention focused on variation in the use of a single sense or multiple senses (e.g. vision vs. olfaction) within a species. Relatively less work has investigated how primate species vary in their use of multiple senses during foraging, particularly sympatric species foraging on the same stimuli. Here, we used foraging behavior datasets from two sympatric platyrrhines to investigate interspecific variation in the use of vision, olfaction, taste, and touch when foraging on fruit from the same plant species. These data were collected at Santa Rosa National Park in Costa Rica between 2004 and 2010, and include foraging sequences during feeding bouts on fourteen shared fruit species by Geoffroy’s spider monkeys (Ateles geoffroyi, 1043 bouts) and white-faced capuchins (Cebus capucinus, 3617 bouts). Using separate linear mixed model analyses for each sense, we found that primate species was a significant factor in explaining variation in the number of foraging sequences that included olfaction (likelihood ratio test, p<0.0001), taste (p<0.0001), touch (p<0.0001), and visual inspection (p<0.0001). Specifically, we found that capuchins use taste, touch, and visual inspection more frequently, while spider monkeys use olfaction more frequently. These results suggest that spider monkeys and capuchins emphasize different sensory modalities while foraging on the same fruit species.