Biología
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Evaluación del papel del sexo y las etapas reproductivas en los procesos de comunicación acústica en el murciélago de ventosas thyroptera tricolor (Chiroptera: thyropteridae)
(2022)El comportamiento es uno de los rasgos más variables dentro del reino animal. Sin embargo, aún hay poca claridad sobre cuáles son los factores que inciden en su variabilidad. En muchas especies se sabe que con el inicio ... -
Sediment organic carbon stocks were similar among four species compositions in a tropical seagrass meadow
(2022)Seagrass meadows composed of larger species are assumed to store larger sediment organic carbon (Corg) stocks, storing more Corg in their tissues and larger leaves promoting greater burial of seagrass and non-seagrass Corg. ... -
Restaurando el arrecife: estrategias para el crecimiento de corales en viveros in situ en Bahía Culebra, Pacífico Norte de Costa Rica
(2022-11)Los arrecifes de coral son ecosistemas de una elevadísima diversidad biológica, que brindan a millones de personas una gran variedad de servicios ecosistémicos. Sin embargo, en las últimas décadas, han sufrido una ... -
A High-Throughput Screen Identifies a New Natural Product with Broad-Spectrum Antibacterial Activity
(2012)Due to the inexorable invasion of our hospitals and communities by drug-resistant bacteria, there is a pressing need for novel antibacterial agents. Here we report the development of a sensitive and robust but low-tech and ... -
Inhibition of Tumor Cells Interacting with Stromal Cells by Xanthones Isolated from a Costa Rican Penicillium sp.
(2012)CR1642D, an endophytic isolate of Penicillium sp. collected from a Costa Rican rainforest, was identified through a high-throughput approach to identify natural products with enhanced antitumor activity in the context of ... -
The Sorcerer II Global Ocean Sampling Expedition: Northwest Atlantic through Eastern Tropical Pacific
(2007-03)The world's oceans contain a complex mixture of micro-organisms that are for the most part, uncharacterized both genetically and biochemically. We report here a metagenomic study of the marine planktonic microbiota in which ... -
Screening of Latin American plants for antiparasitic activities against malaria,Chagas disease, and leishmaniasis
(2010)In order to explore rationally the medical potential of the plant biodiversity of the Central and South American region as a source of novel antiparasitic molecules, a multinational Organization of American States (OAS) ... -
Molecular data indicate that Rhytidhysteron rufulum (ascomycetes, Patellariales) in Costa Rica consists of four distinct lineages corroborated by morphological and chemical characters
(2009)Rhytidhysteron rufulum is a poorly known, common, pantropical species, capable of utilizing different substrata and occupying diverse habitats, and is the only species of its genus in Costa Rica. We have employed molecular, ... -
Taxonomic and Functional Diversity of Aquatic Macroinvertebrate Assemblages and Water Quality in Rivers of the Dry Tropics of Costa Rica
(2021-08)One of Costa Rica’s driest areas is the province of Guanacaste, in the Pacific Northwest, with almost no rain during the dry season from November to April. Due to this marked seasonality, the area is covered by dry tropical ... -
First description of the larva of Psaironeura, based on specimens of P. anegloi from Costa Rica (Odonata: Coenagrionidae: Protoneurinae), with a key to the genera of Central American Protoneurinae.
(2020)The larva of Psaironeura is formally described for the first time, based upon reared specimens of Psaironeura angeloi from the Tirimbina Biological Reserve, Sarapiquí, Heredia Province, Costa Rica. Detailed illustrations ... -
Variación estacional y características fisicoquímicas e hidrológicas que influyen en los macroinvertebrados acuáticos, en un río tropical
(2020)Introducción: La distribución de los macroinver tebrados acuáticos en los ríos puede estar determinada por el tipo del sustrato, la forma del canal del río, el régimen hidrológico y las interacciones con factores ... -
Primer registro del género Interocoris (Heteroptera: Naucoridae) en Centroamérica y observaciones sobre Interocoris mexicanus.
(2020)Introducción: La familia Naucoridae, de distribu ción mundial, se encuentra dividida en cinco subfamilias, de las cuales cuatro de ellas y seis géneros han sido reporta dos hasta la fecha en Centroamérica. El género ... -
Forest in a changing world
(2016)Forest ecosystems have been used for human populations over millennia. Even today, forests provide a large amount of resources and environmental services for modern human populations, but disturbance caused by human ... -
Curculionid beetles in aborted flower buds and immature fruits of Ceiba pentandra (Bombacaceae)
(2008)We determined the incidence of curculionid beetles of the genus Lonchophorus on aborted and not aborted flower buds and developing fruits of the tree Ceiba pentandra in southeastern Costa Rica. Beetle larvae were found in ... -
Allometry and stilt root structure of the Neotropical palm Euterpe precatoria (Arecaceae) across sites and successional stages
(2010)The lack of secondary meristems shapes allometric relationships of the palms, infl uencing species segregation according to their capacity to adjust form and function to spatial and temporal changes in environmental ... -
Depredación de la paloma piquirroja (Patagioenas flavirostris) por el gavilán bicolor (Accipiter bicolor): observaciones sobre el modo de consumo y vigilancia
(2014)El gavilán bicolor depreda principalmente aves de tamaños variables. En esta comunicación reportamos la depredación de la paloma piquirroja por parte de un gavilán bicolor cerca del parque Nacional Volcán Poás, Costa Rica ... -
Uso de la cianobacteria Nostoc muscorum como biofertilizante y sus efectos tanto en el desarrollo del frijol (Phaseolus vulgaris) como en las características del suelo en condiciones de invernadero
(2022-11-22)Nostoc muscorum es una cianobacteria filamentosa que presenta estructuras especializadas llamadas heterocistes, que le permite convertir el nitrógeno molecular atmosférico a formas disponibles como amonio. En entornos ... -
Presence of microplastics in six bivalve species (Mollusca, Bivalvia) commercially exploited at the Pacific coast of Costa Rica, Central America
(2022-08)Microplastic pollution represents a serious threat to coastal marine systems. We evaluated the presence of microplastics (MPs) in 168 specimens of six commercially exploited bivalve species in the Golfo de Nicoya, Costa ... -
Scaling of stem diameter and height allometry in 14 neotropical palm species of different forest strata Gerardo
(2019)Tropical palms reach tree-like heights without a vascular cambium through sustained cell expansion and lignification of primary tissues, but only a fraction of palms have been explored in their allometric relationships. ... -
Successional stage, fragmentation, and exposure to extraction influence the population structure of Euterpe precatoria (Arecaeae)
(2013)The neotropical palm Euterpe precatoria is subject to extraction for its valuable palm heart. The development of management and conservation practices for this species requires understanding of its population structure, ...
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