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Análisis del estado de la vegetación ribereña de la Microcuenca del Río Burío-Quebrada Seca, Heredia, Costa Rica mediante la aplicación de los Índices Calidad del Bosque de Riberas (QBR) y Calidad del Bosque de Riberas modificado (QBRm)
(Universidad Nacional, Costa Rica, 2011)
Determina mediante la aplicación del índice de Calidad de Riberas (QBR) y del índice de Calidad de Riberas modificado (QBRm), el estado de la vegetación de ribera en la Microcuenca del Río Burío-Quebrada Seca, como ...
Behavioral plasticity mitigates risk across environments and predators during anuran metamorphosis
(Behavioral Ecology, 2013)
Most animals metamorphose, changing morphology, physiology, behavior and ecological interactions. Size- and habitat-dependent mortality risk is thought to affect the evolution and plastic expression of metamorphic timing, ...
The structure and function of dry weather mangrove on the Pacific Coast of Central America, with emphasis on Avicennia bicolor forests
(Estuaries Research Federation, 2013)
Mangrove forests along the Pacific Coast of Central America cover around 4,000 km2. Most of this coast is occupied with tropical dry forest mangroves where basal areas range between 6 and 20 m2 ha−1 and canopy heights ...
New species of Potamocoris Hungerford (Heteroptera, Potamocoridae) from Costa Rica and a key to the species
(Magnolia Press, 2014-11)
A new potamocorid species, Potamocoris sitesi NEW SPECIES, with its two wing morphs (coleopteroid and macropterous) are described from Costa Rica. Descriptions are supported with photographs and illustrations. Parameres ...
Leaf life span spectrum of tropical woody seedlings: effects of light and ontogeny and consequences for survival
(Oxford University Press, Annals of Botany Company, 2013-03-26)
Background and AimsLeaf life span is widely recognized as a key life history trait associated with herbivory resistance, but rigorous comparative data are rare for seedlings. The goal of this study was to examine how light ...
Variación estacional de la composición proximal en tres especies de importancia comercial del Golfo de Nicoya, Puntarenas, Costa Rica
(Universidad de Costa Rica, 2013)
Variación estacional de composición próxima en tres especies de importancia comercial en el Golfo de Nicoya, Puntarenas, Costa Rica. El valor nutricional de los productos del mar para el consumo humano está reconocido ...
Tejiendo redes más allá de la U: iniciativas estudiantiles de extensión
(Federación de Estudiantes de la Universidad Nacional (2018-2020). Comisión de Extensión Estudiantil, 2019)
Tejiendo redes más allá de la U es un proyecto desarrollado con el fin de promover una participación y formación integral del estudiantado mediante el apoyo de iniciativas de extensión propuestas por estudiantes. Esto a ...
Characteristics of the spontaneous deposition of Sn in polycrystalline Pt
(2012-04)
Spontaneous deposition of tin (Sn) in polycrystalline platinum (Pt pc) from a sulfuric acid solution of tin salts, was evaluated by conventional electrochemical techniques, to determine its characteristics. Tin was deposited ...
Observation of Varroa destructor behavior in capped worker brood of Africanized honey bees
(Springer Science + Business Media B.V., 2012-06-12)
The behavioral activity of Varroa destructor was observed using transparent cells. Mite oviposition started at 45.0 ± 25.0 h post capping, followed by the next eggs laid at regular 27.3 ± 2.0 h intervals. On the prepupa, ...
Unveiling the hidden bat diversity of a neotropical montane forest
(PLOS ONE Vol.11 No.10, 2016-10-05)
Mountain environments, characterized by high levels of endemism, are at risk of experiencing significant biodiversity loss due to current trends in global warming. While many acknowledge their importance and vulnerability, ...