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Now showing items 11-20 of 23
Cetáceos de las aguas costeras del Pacífico norte y sur de Costa Rica
(Universidad Nacional, Costa Rica., 2010)
Cetáceos costeros del Pacífico Norte y Sur de Costa Rica. Veintinueve especies de cetáceos ocurren en aguas costarricenses pero sólo se han realizado investigaciones extensivas para tres especies. Esto último demuestra que ...
Interbirth interval of a free-ranging jaguar
(Universidad Nacional, Costa Rica., 2009)
The 60-kg adult female jaguar was first captured on 25 February 1996 in a box trap baited with shark meat. We monitored her for the next three and a half years, usually locating her by triangulation once or twice a week, ...
Growth of Mantled Howler Groups in a Regenerating Costa Rican Dry Forest
(Universidad Nacional, Costa Rica., 1998)
We examined population dynamics in mantled howlers (Alouatta palliata palliata) in a regenerating tropical dry forest in Santa Rosa National Park
(SRNP), Costa Rica. The population has grown at a rate of about 7% per annum ...
Home Range, Habitat Use, and Activity of Baird’s Tapir in Costa Rica
(Universidad Nacional, Costa Rica., 2002)
Home range size, habitat utilization, and activity patterns of five adult Baird’s tapirs (Tapirus bairdii) were studied via radiotelemetry from June 1995 to May 1996 in Corcovado National Park, Costa Rica. Estimates of ...
Food niche overlap among neotropical frugivorous bats in Costa Rica
(Universidad Nacional, Costa Rica., 2006)
Food habits of 15 species of frugivorous bats were studied at La Selva Biological Station, Costa
Rica. Eight hundred and fifty-four (854) fecal samples and 169 samples from fruit parts and seeds discarded
by bats beneath ...
First nest record of the Bare-shanked screech-owl (Otus clarkii)
(Universidad Nacional, Costa Rica., 1997)
Reportamos el primer registro de anidación de la Lechucita Serranera (Otus clarkii), encontrado en las tierras altas de Costa Rica. El nido se localizó en un árbol de encino (Quercus copeyensis) a una altura de 3.3m en una ...
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 ...
Vulnerabilidad de las redes de polinización planta-colibrí a la pérdida de especies endémicas y especialistas, en un gradiente altitudinal en la cordillera de Talamanca en Costa Rica.
(Universidad Nacional (Costa Rica), 2023)
Para abordar de manera efectiva la creciente pérdida de biodiversidad, es fundamental identificar las especies más sensibles a las perturbaciones pero también evaluar la vulnerabilidad de sus interacciones. Esta investigación ...
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 ...