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Factores laborales, exposición a plaguicidas y síntomas depresivos en mujeres madres participantes de la cohorte ISA, Matina, Limón, Costa Rica
(Universidad Nacional, Costa Rica, 2023)
La depresión es un comportamiento complejo del estado de ánimo, caracterizado por una tristeza persistente y pérdida de interés o placer, que depende de factores externos o personales de tipo sociodemográfico, socioeconómico, ...
Optimization of Pollen Germination in Tectona grandis (Teak) for Breeding Programs
(MDPI, 2019-10-16)
Teak has become one of the most widely planted species in tropical regions of the world,
given its high price for its timber in international markets. This has motivated the development of tree
improvement programs in ...
Immobilization of free-ranging Hoffmann´s two-toed and brown-throated three-toed sloths using ketamine and medetomidine: a comparasion of physiologic parameters
(Universidad Nacional, Costa Rica., 2008)
Free-ranging Hoffmann’s two-toed sloths (Choloepus hoffmanni; n526) and brown throated three-toed sloths (Bradypus variegatus; n515) were manually captured and immobilized
with 2.5 mg/kg ketamine + 0.02 mg/kg medetomidine ...
Micropropagación de clones superiores de caoba (Swietenia macrophylla King) a partir de segmentos nodales
(Universidad Nacional, Costa Rica, 2019-07-01)
La caoba es la especie forestal nativa económicamente más importante en Latinoamérica, se encuentra en el Apéndice II de CITES, debido a que registra un elevado índice de explotación, producto de la alta extracción sufrida ...
Crioconservación de semillas de Teca (Tectona grandis).
(Universidad Nacional, Costa Rica., 2013-06)
La teca (Tectona grandis L.f) es un árbol tropical con gran demanda por la alta calidad de su madera y rápido crecimiento. Los programas de mejoramiento genético para esta especie han dado como resultado semillas de mejor ...
Genetic patterns and conservation of the Scarlet Macaw (Ara macao) in Costa Rica
(Springer, 2015)
Once widely distributed throughout the lowland
forests of Costa Rica, scarlet macaws (Ara macao) have been reduced to two major, geographically separated, pop ulations along the Pacific slope. Past demographic declines ...
Establecimiento in vitro de arándano (Vaccinium corymbosum L)
(Instituto Tecnológico de Costa Rica, 2013-12-01)
El arándano es un arbusto de la familia de las ericáceas, del género Vaccinium, al cual pertenecen varias especies, entre las que se reconoce V. corymbosum. Debido al alto valor medicinal y nutricional de sus frutos, estas ...
Heavy poaching in prime habitat: the conservation status of the West Indian manatee in Nicaragua
(Universidad Nacional, Costa Rica., 2002)
This study provides an overview of the conservation status of the West Indian manatee Trichechus manatus in Nicaragua, including data on habitat availability, manatee distribution and relative abundance, and current threats. ...
Habitat features influencing jaguar Panthera onca (Carnivora: Felidae) occupancy in Tortuguero National Park, Costa Rica
(Universidad Nacional, Costa Rica., 2014)
Habitat characteristics and human activities are known to play a major role in the occupancy of jag uars Panthera onca across their range, however the key variables influencing jaguar distribution in Tortuguero National ...
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 ...