Ciencias básicas
Colecciones en esta comunidad
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Biología [373]
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Física [30]
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Geología [38]
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Matemática [21]
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Meteorología [141]
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Química [70]
Envíos recientes
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All-offspring natal philopatry in a Neotropical bat
(2011-11)Natal dispersal is a strategy employed by individuals to avoid reproducing with close relatives. In most bats, incestuous matings are prevented by the departure of one sex; thus, all-offspring philopatry has rarely been ... -
Sound amplification by means of a horn-like roosting structure in Spix's disc-winged bat
(2013-10)While sound is a signal modality widely used by many animals, it is very susceptible to attenuation, hampering effective long-distance communication. A strategy to minimize sound attenuation that has been historically used ... -
Identification of circadian gene variants in bipolar disorder in Latino populations
(2015)Background: Variations in circadian genes can impact biological rhythms. Given the rhythm disturbances that characterize bipolar disorder (BD), genes encoding components of molecular clocks are good candidate genes for ... -
When genes move farther than offspring: gene flow by male gamete dispersal in the highly philopatric bat species Thyroptera tricolor
(2013-11)For species characterized by philopatry of both sexes, mate selection represents an important behaviour for inbreeding avoidance, yet the implications for gene flow are rarely quantified. Here, we present evidence of male ... -
The role of chloramine species in NDMA formation
(2018-09)N-nitrosodimethylamine (NDMA), a probable human carcinogen disinfection by-product, has been detected in chloraminated drinking water systems. Understanding its formation over time is important to control NDMA levels in ... -
Removal of both N-nitrosodimethylamine and trihalomethanes precursors in a single treatment using ion exchange resins
(2017-11-01)Drinking water utilities are relying more than ever on water sources impacted by wastewater effluents. Disinfection/oxidation of these waters during water treatment may lead to the formation of several disinfection ... -
EL ÁREA DE DESLIZAMIENTOS DE TORITO: UN PROCESO HISTÓRICO DE AMENAZA
(2015-06)Al área de inestabilidad de laderas de Torito, ubicada en Santa Teresita, distrito cuarto del cantón de Turrialba, Costa Rica, se le conoce actividad histórica explícita a raíz de los constantes reportes de averías y ... -
Repeatability in the contact calling system of Spix's disc-winged bat (Thyroptera tricolor)
(2015-01)Spix's disc-winged bat (Thyroptera tricolor) forms cohesive groups despite using an extremely ephemeral roost, partly due to the use of two acoustic signals that help individuals locate roost sites and group embers. While ... -
Unveiling the Hidden Bat Diversity of a Neotropical Montane Forest
(2016-10)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, ... -
Ecological Correlates of Range Size in the Tent-Making Bat Artibeus watsoni
(2007-04)We examined variation in foraging- and roosting-range size in the tent-making bat Artibeus watsoni. We radiotracked 42 individuals at 2 sites in the Golfito Wildlife Refuge and 6 sites at Corcovado National Park, southwestern ... -
Variation in echolocation call frequencies in two species of free-tailed bats according to temperature and humidity
(2017)Bats can actively adjust their echolocation signals to specific habitats and tasks, yet it is not known if bats also modify their calls to decrease atmospheric attenuation. Here the authors test the hypothesis that individuals ... -
Ecological Correlates of Roost Fidelity in the Tent-Making Bat Artibeus watsoni
(2007-05)Roost switching is a common occurrence in bats, yet the causes and consequences of such behavior are poorly understood. In this study we explore the ecological correlates of roost fidelity in the tent‐making bat Artibeus ... -
Mating System of the Tent-Making Bat Artibeus watsoni (Chiroptera: Phyllostomida
(2008-12)Vertebrate mating systems are influenced by ecological and phylogenetic factors, and the variation observed in mating behavior is frequently attributable to the extent to which male assistance in the rearing of offspring ... -
Diversity and Conservation of Cave-Dwelling Bats in the Brunca Region of Costa Rica
(2018-06-02)The Brunca region in Costa Rica contains the largest number of caves in the country, yet the diversity and distribution of bat species within those caves is currently unknown. Without this information, it is not possible ... -
Reproduction and Growth in a Neotropical Insectivorous Bat
(2011)Even though there is an abundance of data regarding the reproductive biology and postnatal growth of bats, comprehensive data on life history is still lacking for most species, particularly for rare families that have ... -
Comparative analysis of dengue versus chikungunya outbreaks in Costa Rica
(2018-06)For decades, dengue virus has been a cause of major public health concern in Costa Rica, due to its landscape and climatic conditions that favor the circumstances in which the vector, Aedes aegypti, thrives. The emergence ...
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