Copyright © 1999-2010 — Fundación ProSur.  Derechos Reservados, All rights reserved. Research Cooperation in the disk-winged bat Thyroptera tricolor  The aim of this study is to determine which mechanism - kin selection, mutualism, or reciprocity- is responsible for the evolution of cooperation in the leaf-roosting bat Thyroptera tricolor. The cooperative behavior under study is the signaling of roost, or roostmate, location by roosting bats towards displaced individuals. We use the variation in resource abundance that exists between nearby sites, and its effects on population dynamics and social systems, to test the role of dispersal patterns and social network structure on cooperation using a comparative approach. Specifically, we will measure the rate of cooperation in populations subject to diverse patterns of dispersal, and between populations whose social network structure differs in mean node degree, mean node betweenness, pattern of substructure, and cluster size. Surveying, monitoring and protecting mammalian populations in a biodiversity hotspot The goal of this study is to provide information regarding the status of mammalian populations in unprotected lowland forests of the Amistosa Biological Corridor, and to mitigate the effects of human activities on local habitats and mammals in the area through education. This will be achieved by monitoring the diversity and abundance of species in the area. We will also conduct interviews with local citizens to evaluate the vulnerability of different mammalian species to poaching, and carry out field and classroom sessions with local children, adolescents, and peasants, to educate about the value of mammals and tropical forests.