Abstract # 148:

Scheduled for Friday, June 19, 2015 03:15 PM-03:30 PM: (Cascade F) Oral Presentation


I. D. Soto-Calderon1, P. Bloor2, Y. A. Acevedo-Garces1, S. Orjuela-Leon2, J. S. Arciniegas-Vacares2 and L. D. Acevedo-Cendales3
1University of Antioquia, Cra. 53 #61-30., Torre 2. Lab. 430., Medellin, Antioquia, Colombia, 2Grupo de Biodiversidad y Recursos Genéticos. Instituto de Genética. National University of Colombia, 3Wildlife Conservation Society - Colombia
     Along with howler and capuchin monkeys, white-footed tamarins are the most smuggled primates in North-West Colombia. This is reflected by the large number of confiscated animals and releases into the wild, whose effect on the historical population genetic structure of the species is unknown. We thus aimed to assess natural levels of genetic variation and geographic genetic structure of S. leucopus across its entire range and determine the power of such information to infer the origin of smuggled animals. We sequenced 2,044bp of the mitochondrial DNA corresponding to the First Hypervariable Region (n=99) and the Cytochrome-b gene (n=79) in eight wild populations and captive animals. We also genotyped six nuclear microsatellites (n=85) in five populations and captive animals. Both mitochondrial and nuclear data revealed high levels of genetic variation. The network of mitochondrial sequences recovered two well differentiated haplogroups, one restricted to the northern distribution and another one containing central and southern populations. Likewise, captive individuals represented all the main haplogroups, suggesting illegal extraction from across the entire species geographical range. Elevated microsatellite differentiation within troops contrasts with high mitochondrial differentiation between troops, consistent with male-biased dispersal and matrilocality, a pattern also observed in other tamarins. These data have practical implications for identification of traffic routes, defining target populations for release actions, prioritization of regions for conservation and understanding the social structure of S. leucopus.