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Now showing items 11-18 of 18
El cerdo cimarrón (Sus scrofa, Suidae) en la Isla del Coco, Costa Rica: Composición de su dieta, estado reproductivo y genética
(Universidad Nacional, Costa Rica., 2001)
Feral pigs (Sus scrofa) cause different kinds of damage specially on oceanic islands. Pigs were introduced at Cocos Island, Costa Rica, during 1793 and bred successfully. I analised feral pigs diet, reproductive state, ...
El cerdo cimarrón (Sus scrofa, Suidae) en la Isla del Coco, Costa Rica: Escarbaduras, alteraciones al suelo y erosión
(Universidad Nacional, Costa Rica., 2001)
Feral pigs (Sus scrofa) are of the most damaging exotic vertebrates, specially on oceanic island nativecommunities. Feral pigs inhabit Cocos Island since 1793 and there are around 400-500 individuals. In order toquantify ...
Critical condition of the jaguar Panthera onca population in Corcovado National Park, Costa Rica
(Universidad Nacional, Costa Rica., 2007)
The jaguar Panthera onca is threatened
throughout its range and categorized as Near Threat ened on the IUCN Red List. To inform conservation of
the jaguar population in Corcovado National Park,
Costa Rica, population ...
Contribution of live fences to the ecological integrity of agricultural landscapes
(Universidad Nacional, Costa Rica., 2005-08-16)
Live fences are conspicuous features of agricultural landscapes across Central America but there is remarkably little
information about their abundance, distribution, and function. Here we present a detailed analysis of: ...
Dung beetle and terrestrial mammal diversity in forests, indigenous agroforestry systems and plantain monocultures in Talamanca, Costa Rica
(Universidad Nacional, Costa Rica., 2006)
In order to explore the importance of indigenous agroforestry systems for biodiversity
conservation, we compared the abundance, species richness and diversity of dung beetles and
terrestrial mammals across a gradient of ...
Development of predictive models to explain the distribution of the West Indian manatee Trichechus manatus in tropical watercourses
(Universidad Nacional, Costa Rica., 2005-05-31)
Logistic regressions were used to study the relationship between habitat variables and the use of tropical watercourses by the
West Indian manatee Trichechus manatus at Northeastern Costa Rica and Southern Nicaragua. ...
Dieta estacional del Tayassu pecari (Artiodactyla: Tayassuidae) en el Parque Nacional Corcovado, Costa Rica
(Universidad Nacional, Costa Rica., 2000)
The diet of the white-lipped peccari Tayassu pecari was studied from July 1996 to April 1997 in Cor covado National Park, Costa Rica, through fecal analysis and direct observations. The feces consisted of 61.6%
fruits, ...
Attempts to culture the parasitic stage of Dermatobia hominis (L. Jr.) in vitro (Diptera: Cuterebridae)
(Universidad Nacional, Costa Rica, 2002)
A nationwide survey in Costa Rica, using Kellert's conceptual framework (Kellert, S.R. 1996. The Value of Life. Washington D.C., Island Press), revealed at least five attitude dimensions toward animals. Overall, Costa Rican ...