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A comparison of fruit removal in Ficus colubrinae between birds and Ectophylla alba (Chiroptera: Phyllostomidae) in a Costa Rican rain forest
(Taylor and Francis Ltd., 2021-02-02)Ectophylla alba almost exclusively feeds on the fruits of Ficus colubrinae therefore significantly contributing to dispersal of its seeds. The objective of this research was to quantify the fruit removal of F. colubrinae ... -
A new nesting record for the jabiru in Costa Rica
(Universidad Nacional, Costa Rica, 1988)I document the first nesting record of the jabiru (Jabiru mycteria) in "Los Guatuzos" forest floodplain, Alajuela province, Costa Rica. The active nest was located in March 1995 at 10°49'23.70"N and 84°47'23.2"W. The nest ... -
A Sensitivity Analysis of the Application of Integrated Species Distribution Models to Mobile Species: A Case Study with the Endangered Baird's Tapir
(Cambridge University Press, 2019-04-21)Species distribution models (SDMs) are statistical tools used to develop continuous predictions of species occurrence. 'Integrated SDMs' (ISDMs) are an elaboration of this approach with potential advantages that allow for ... -
Abundancia del jaguar (Panthera onca), otros felinos y sus presas potenciales en el Parque Nacional Santa Rosa, Costa Rica / Abundance of jaguars (Panthera onca), other felids and their potential prey in Santa Rosa National Park, Costa Rica
(Universidad Nacional, Costa Rica, 2015)Abundance of jaguars (Panthera onca), other felids and their potential prey in Santa Rosa National Park, Costa Rica. Santa Rosa National Park, Guanacaste Province, protects one of the largest rem-nants of ... -
Agroforestry systems conserve species-rich but modified assemblages of tropical birds and bats
(Universidad Nacional, Costa Rica, 2007-05-31)Although an increasing number of studies have shown that diverse, multi-strata agroforestry systems can contribute to the conservation of tropical biodiversity, there is still debate about how the biodiversity within ... -
Analysis of the Interactions Between Humans and Crocodiles in Costa Rica
(Sociedade Brasileira de Herpetologia, 2020)The habitat of crocodiles (Crocodylus acutus) and caimans (Caiman crocodilus) has been subjected to pressure due to human expansion. Habitat reduction, coupled with the simultaneous growth of the crocodile population, ... -
Camera trapping ocelots: An evaluation of felid attractants
(Universidad Nacional, Costa Rica, 2014)Ocelots (Leopardus pardalis) and other wild cats are often surveyed using camera traps to identify individuals for density estimation via capture-recapture analyses or estimate occupancy via detection/non-detection ... -
Comparación de la Metodología Mora-Vahrson y el Método Morfométrico para Determinar Áreas Susceptibles a Deslizamientos en la Microcuenca del Río Macho, Costa Rica
(Universidad Nacional, Costa Rica, 2018)Se analizan las metodologías Mora-Vahrson (1994) y el método morfométrico para estudiar sus fortalezas y debilidades en la determinación de zonas susceptibles a deslizamientos. Se explican las metodologías, y posteriormente, ... -
Conservation value of dispersed tree cover threatened by pasture management
(Universidad Nacional, Costa Rica, 2011)Trees dispersed in pastures are a prominent feature of many Central American landscapes, particularly in cattle producing regions where farmers retain trees to serve as shade, fodder, timber and firewood. The presence of ... -
Consumption of wild rice (Oryza latifolia) by free-ranging jaguars, pumas, and ocelots (Carnivora-Felidae) in northwestern Costa Rica
(Elsevier Inc., 2020-03)There is limited information about plant consumption by felid species, yet anecdotal evidence suggests that plants and grass are a complementary component in the diet of domestic and wild carnivores. We report opportunistic ... -
Contexts and patterns of injuries in free-ranging male baboons (Papio Cynocephalus)
(Universidad Nacional, Costa Rica, 1996)Injury in male baboons (Papio cynocephalus) was investigated as an indicator of damaging fights in order to provide a framework for analyses of conflict resolution and dynamics of agonistic competition in primates. The ... -
Determining nature’s contributions to achieve the sustainable development goals
(Springer Tokyo, 2019-03-01)Academics and policy-makers recognize that humans and nature should be studied and managed as integrated social–ecological systems. Recently, the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem ... -
Effect of prey availability on the abundance of White-breasted Wood-Wrens, insectivorous birds of tropical lowland forests
(Universidad Nacional, Costa Rica., 2014)Some understory insectivorous birds manage to persist in tropical forest fragments despite significant habitat loss and forest fragmentation. Their persistence has been related to arthropod biomass. In addition, forest ... -
Evaluation of Three Methods to Estimate Density and Detectability From Roadside Point Counts
(Universidad Nacional, Costa Rica., 2011)Roadside point counts are often used to estimate trends of bird populations. The use of aural counts of birds without adjustment for detection probability, however, can lead to incorrect population trend estimates. We ... -
Exploitation of white-lipped peccaries Tayassu pecari (Artiodactyla: Tayassuidae) on the Osa Peninsula, Costa Rica
(Universidad Nacional, Costa Rica., 2002)We studied movements of white-lipped peccaries (Tayassu pecari, Artiodactyla, Tayassuidae) throughout the Osa Peninsula and their use by local people during 1997-2000, using interview techniques. We draw five main conclusions: ... -
Exploitation of white-lipped peccaries Tayassu pecari (Artiodactyla: Tayassuidae) on the Osa Peninsula, Costa Rica
(Universidad Nacional, Costa Rica., 2002)We studied movements of white-lipped peccaries (Tayassu pecari, Artiodactyla, Tayassuidae) throughout the Osa Peninsula and their use by local people during 1997-2000, using interview techniques. We draw five main conclusions: ... -
Home range and activity pattems of Conepatus semistriatus (Carnivora, Mephitidae) in Emas National Park, Brazil
(Universidad Nacional, Costa Rica., 2014)The home range, habitat use, and distance from water sources were estimated for Basiliscus plumifrons in an agricultural matrix in Costa Rica. Using radio telemetry, four females and four males were studied from July-September ... -
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 ... -
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, ... -
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 ...