Abstract # 2964 Event # 110:

Scheduled for Saturday, June 19, 2010 08:30 AM-08:40 AM: Session 19 (Mezzanine Ballroom A/B/C/D) Oral Presentation


POTENTIAL DISTRIBUTION OF PRIMATES IN MEXICO: MODELING THE ECOLOGICAL NICHE WITH THE MAXIMUM ENTROPY ALGORITHM (MAXENT)

F. Vidal-Garcia1 and J. C. Serio-Silva2
1División de Posgrado, Instituto de Ecología A. C., Xalapa, Veracruz, Mexico, 2Red de Biología y Conservación de Vertebrados, Instituto de Ecología A. C., Xalapa, Veracruz, México
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Nowadays, modeling of ecological niche is a common tool used for understand the potential distribution of species and the variables that determine their presence. We developed a potential distribution model for the species of primates that inhabit the tropical rain forest of southern Mexico: the black howler monkey (Alouatta pigra), the mantled howler monkey (Alouatta palliata mexicana) and the spider monkey (Ateles geoffroyi). We applied the maximum entropy algorithm from the ecological niche modeling program MaxEnt. For each species, we used spatially independent occurrence records from scientific collections, published and unpublished sources, and we also used the 19 environmental coverage variables related to precipitation and temperature from WorldClim to develop the model. The predicted distribution of A. pigra was strongly associated with the mean temperature of the warmest quarter, and for A. p. mexicana and A. geoffroyi were strongly associated with precipitation during the coldest quarter. The potential distribution of A. geoffroyi is broader than Alouatta spp. The areas with the greatest probability of presence of primates in México are strongly associated with riparian vegetation and with the presence of rain forest. The most significant contribution of this study is the identification of areas with a high probability of the presence of these primate species; information which can be applied to planning future studies and establishing the criteria for primate conservation priorities in México.