Journal
INTERNATIONAL JOURNAL OF PRIMATOLOGY
Volume 24, Issue 5, Pages 1113-1120Publisher
SPRINGER
DOI: 10.1023/A:1026284430453
Keywords
owl monkey; ketamine; marking; capturing; Aotus
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Long-term behavioral studies require the permanent identification of individuals. The need for individual identification is even more crucial for sexually monomorphic species since not even the sexes can be differentiated by the field observer. Owl monkeys (Aotus spp.) are sexually monomorphic primates inhabiting the forests of Central and South America. We report here on the methods and drug dosages used to capture, mark, and identify individual owl monkeys ( Aotus azarai azarai) in Eastern Formosa, Argentina. We successfully captured 70 owl monkeys using blowpipes or a CO2 rifle, but attempts to capture them with baited traps proved unsuccessful. During the marking and collaring procedures, we gave individuals on average a total of 50 mg of ketamine hydrochloride, including the dose in the dart. To mark them, we freeze-branded portions of their tails and fitted them with radio or bead collars. There was no death or physical life-threatening injury while capturing or marking individuals. The procedures we describe should allow one to safely capture and to mark small arboreal primates when trapping is not possible.
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