Abstract # 152:

Scheduled for Sunday, August 27, 2017 09:00 AM-09:15 AM: (National Ballroom Salon A) Oral Presentation


T. Gregory1, A. Whitworth3,4, J. L. Mena5, M. Bowler6 and A. Portillo2
1Smithsonian Conservation Biology Institute, Center for Conservation and Sustainability, 1100 Jefferson Dr, SW, Washington, DC 20013, USA, 2Universidad Nacional de San Antonio Abad del Cusco, Peru, 3Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK , 4The Crees Foundation, Cusco, Peru, 5World Wildlife Fund, Lima, Peru, 6San Diego Zoo Institute for Conservation Research, Escondido, CA, USA
     Most Neotropical primate species are highly arboreal, and documentation of terrestrial behavior is scarce. Most records are in the context of gap crossing, predator avoidance, foraging/consumption of specific resources (e.g. water, clay at salt licks), or social interaction (e.g. females escaping attack). Nevertheless, monkey groups must be well-habituated to engage in such behaviors in the presence of human observers, making camera trapping a useful tool for its documentation. During terrestrial mammal studies in five protected areas in Amazonian Peru (Manu National Park, Amarakaeri and Sira Communal Reserves, Purus Conservation Concession, Maijuna-Kichwa Regional Conservation Area) using large camera networks, we documented 94 events (22% with >1 individual) of five primate species (Cebus albifrons: N=50, Saimiri boliviensis: N=24, Sapajus apella: N=18, Ateles chamek: N=1, and Lagothrix cana: N=1) over 62,000 trap nights. While overall primate trapping rates are extremely low relative to other species (e.g. in Amarakaeri: primates = 0.071 events/100 trap nights; Eira barbara [semi-arboreal] = 0.82; Dasyprocta variegata [terrestrial] = 3.51), these data represent valuable documentations of an unusual behavior. Furthermore, provocations for terrestriality (e.g. salt licks, forest gaps) were absent in the study areas, suggesting that ground movement may be part of the behavioral repertoire of these species in intact forest. Being that camera trapping is a relatively non-invasive method, we suggest terrestrial studies may be useful sources of data on this rare behavior.