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Enzo Aliaga-Rossel: I am a biologist from Bolivia; I did my Masters and PhD in USA; my research interests in a broad sense are: tropical ecology; animal-plant interactions; mammal ecology and conservation; ethnozoology; the participation of indigenous and local people in use of resources; and conflicts animal-people over conservation. Including activities of environmental education. I am interested also in tropical terrestrial mammal movement and its relations with food, habitat use, and interactions with other wildlife. These involve the use of technology. I conducted a radio-telemetry study of the ecology and use of space of agoutis (Dasyprocta punctata) in BCI-Panama. This was one of the first studies of its kind in the Centro American neotropics; it provided important information on the agouti home range, use of habitat and resources, and predation. Recently I’ve been studying in Bolivia, the effects of the presence of different mammal densities on survivorship of seed and seedlings, I focused on the presence of white-lipped peccaries, and the effect of this species over a Palm, I find out that in the absence of the peccaries (due to human hunting), the densities of the palm seedling increases, affecting the adult densities, and therefore the forest structure. Also, and for many years I am involved in the conservation and research of the Bolivian river dolphin (Inia boliviensis), and endemic cetacean that lives in the tropical rivers of Bolivia, this species was declared as Natural heritage of the country, however the threats to the habitat and the populations are pressuring this species.