Browsing Artículo Científico by Title
Now showing items 75-94 of 97
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Jaguar and puma attacks on livestock in Costa Rica
(Human-Wildlife Interactions, 2013)Human-felid conflicts threaten long-term conservation of jaguars (Panthera onca) and pumas (Puma concolor). We interviewed ranchers from 50 ranches and inspected farms in northern Costa Rica that reported recent attacks ... -
Jaguars (Panthera onca) increase kill utilization rates and share prey in response to seasonal fluctuations in nesting green turtle (Chelonia mydas mydas) abundance in Tortuguero National Park, Costa Rica
(Mammalian Biology, 2015-03)Jaguar (. Panthera onca) predation of green turtles (. Chelonia mydas mydas) is now a common occurrence in Tortuguero National Park, Costa Rica. The abundance of green turtles during nesting season ensures a constant ... -
Jaguars (Panthera onca) increase kill utilization rates and share prey in response to seasonal fluctuations in nesting green turtle (Chelonia mydas mydas) abundance in Tortuguero National Park, Costa Rica
(Universidad Nacional, Costa Rica., 2015)Jaguar (Panthera onca) predation of green turtles (Chelonia mydas mydas) is now a common occurrence in Tortuguero National Park, Costa Rica. The abundance of green turtles during nesting season ensures a constant provision ... -
Late dry season habitat use of common opossum, Didelphis marsupialis (Marsupialia: Didelphidae) in neotropical lower montane agricultural areas
(Universidad Nacional, Costa Rica., 1999)Three Didelphis marsupialis were radio tracked during late dry season (23 February-26 April, 1983) in agricultural area at 1500 m elevation in Central Valley, Costa Rica. All animals were nocturnally active, significantly ... -
Long-term comparison of the fish community in a Costa Rican rocky shore marine reserve
(Universidad Nacional, Costa Rica., 2010)Despite their role in supporting diverse marine fish communities, tropical rocky shores and reefs have attracted less research and fewer targeted conservation efforts compared to coral reefs. We studied fish community ... -
Modelos de biomasa y carbono para árboles de Gmelina arborea en plantaciones clonales
(Universidad Nacional, Costa Rica, 2021-01-01)La evaluación de la biomasa y el desarrollo de modelos es un elemento clave para determinar el potencial de mitigación del cambio climático de los ecosistemas forestales. Los bosques plantados año tras año ... -
Movements and activities of white-lipped peccaries in Corcovado National Park, Costa Rica
(Universidad Nacional, Costa Rica., 2002)The conservation of remnant populations of white-lipped peccaries in Central America depends on adequate documentation of their habitat needs and behavior. Thus, we monitored the activity patterns, local distributions, ... -
Neotropical dry forest wildlife water hole use and management
(Universidad Nacional, Costa Rica., 1999)Selected wildlife species diurnal use of a natural water hole (QO) and an artificial water hole (AW) were studied during 1990 dry season at Guanacaste Conservation Area, Costa Rica. In total, 919 individuals (six marnmal ... -
Olive ridley mass nesting ecology and egg harvest at ostional beach, Costa Rica
(Chelonian Conservation and Biology, 2012-06)The olive ridley sea turtle (Lepidochelys olivacea), a species listed by the International Union for Conservation of Nature as vulnerable, is characterized by its mass-nesting behavior, also known as arribada. For decades, ... -
Population status of terrestrial mammals’ in two protected areas in the west central region of Costa Rica [Estado poblacional de mamíferos terrestres en dos áreas protegidas de la región central occidental de Costa Rica]
(Revista de Biología Tropical, 2017-11-16)In the West Central Region of Costa Rica, there are plenty of forests under public and private protection; however, they are increasingly exposed to fragmentation. This is the first report about species richness and the ... -
Population status, connectivity, and conservation action for the endangered Baird's tapir
(Elsevier Ltd, 2020-05)Although many large mammals currently face significant threats that could lead to their extinction, resources for conservation are often scarce, resulting in the need to develop efficient plans to prioritize conservation ... -
Precipitous decline of white-lipped peccary populations in Mesoamerica
(Elsevier Ltd, 2020-02)Large mammalian herbivores are experiencing population reductions and range declines. However, we lack regional knowledge of population status for many herbivores, particularly in developing countries. Addressing this ... -
Reproduction of white-tailed deer in a seasonally dry tropical forest of Costa Rica: A test of aseasonality
(Oxford University Press, 2020-02-21)The reproductive season of white-tailed deer (Odocoileus virginianus) has been hypothesized to be aseasonal south of about 14°–18°N latitude, where annual variation in day length is low. We tested this idea by using camera-trap ... -
Scavenging on sea turtle carcasses by multiple jaguars in northwestern Costa Rica
(Therya, 2016)Information on scavenging by jaguars is scarce, dispersed and little documented in the scientific literature, producing a shallow understanding of this phenomenon. Therefore, the aim of this paper is to describe the behavior ... -
Seasonal use of waterholes and pathways by macrofauna in the dry forest of Costa Rica
(Cambridge University Press, 2019-03-01)Temporal and spatial scarcity of water in semi-arid and seasonal ecosystems often leads to changes in movements and behaviour of large vertebrates, and in the neotropics this dynamic is poorly understood due to logistical ... -
Serosurvey of selected arboviral pathogens in freeranging, two-toed sloths (Choloepus hoffmanni) and three-toed sloths (Bradypus variegatus) in Costa Rica, 2005–07
(Journal of Wildlife Diseases, 2016-10-01)We screened for antibodies to 16 arboviruses in four populations of free-ranging sloths in Costa Rica. Blood samples were taken from 16 Hoffman's two-toed sloths (HTSs; Choloepus hoffmanni) and 26 brown-throated sloths ... -
Soundscape structure in forests surrounded by protected and productive areas in central Costa Rica
(Universidad Nacional, Costa Rica, 2023-03-09)Ecosystems are under a multitude of pressures, including land-use change, overexploitation, pollution, and climate change. Most studies, resources, and conservation efforts are allocated to protected areas, while anthropogenic ... -
Temporal and spatial resource use by female three-toed sloths and their young in an agricultural landscape in Costa Rica
(Revista de Biologia Tropical, 2011-12)The information on ecological behavior of wild sloths is very scarce. In this study we determined the home ranges and resources used by three adult female three-toed sloths (Bradypus variegatus) and their four young in ... -
The big free-tailed bat, Nyctinomops macrotis (Gray, 1839), in central America [El murciélago grande de cola libre, Nyctinomops macrotis (Gray, 1839), en Centro América]
(Mastozoologia Neotropical, 2016-12)The big free-tailed bat, Nyctinomops macrotis, is a large molossid with a discontinuous distribution in the southwestern United States and most of Mexico (northern range), and northern South America (southern range). In ... -
The role of fragmentation and landscape changes in the ecological release of common nest predators in the neotropics
(PeerJ, 2014-07)Loss of large mammalian carnivores may allow smaller mesopredators to become abundant and threaten other community members. There is considerable debate about mesopredator release and the role that other potential factors ...