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A New Hybrid of Serpocaulon (Polypodiaceae) from Costa Rica
(Bio One Research Evolved, 2013)A new hybrid Serpocaulon 3 sessilipinnum A. Rojas & J.M. Chaves is described. The new taxon has characters intermediate between S. fraxinifolium (Jacq.) A.R. Sm. and S. ptilorhizon (Christ) A.R. Sm., which are related ... -
Assessment of methods for predicting eukaryotic promoter sequences
(IEEE, 2023)Identifying promoters is challenging due to their short sequences, low conservation, and complex regulation. Historically, this was done through slow and expensive experimental methods. Efficient pattern recognition and ... -
Áreas protegidas de Costa Rica: Fragmentación, tamaño y forma
(Instituto Centroamericano para la investigación en biología y conservación, 2011-10)La reducción en el tamaño del hábitat y la fragmentación ha sido considerada como una de las principales causas de extinción de las especies. Como una estrategia para disminuir el efecto de los procesos de fragmentación ... -
Beta diversity and oligarchic dominance in the tropical forests of Southern Costa Rica
(Blackwell Publishing Ltd, 2019-03)Recent studies have reported a consistent pattern of strong dominance of a small subset of tree species in neotropical forests. These species have been called “hyperdominant” at large geographical scales and “oligarchs” ... -
Biological treatments affect the chemical composition of coffee pulp
(Elsevier, 2003-02-16)Biological treatments were applied to fresh coffee pulp (CoP) to improve its nutritive value for monogastric animals by reducing its content of cellulose and antinutritional factors (ANFs) such as total phenols, tannins ... -
Biotransformation and oxidative stress responses in fish (Astyanax aeneus) inhabiting a Caribbean estuary contaminated with pesticide residues from agricultural runoff
(Springer (Alemania), 2023)The estuarine ecosystem of Madre de Dios Lagoon (MDL), in the Caribbean Coast of Costa Rica, is exposed to contamination with pesticide residues coming from the upstream agricultural areas. Biomarkers can provide a better ... -
Body mass explains digestive traits in small vespertilionid bats
(Springer Science and Business Media Deutschland GmbH, 2021-02-11)Bats are unique among mammals in that they have evolved the capacity to fly. This has generated strong selective pressure on the morphology and function of their digestive system. Given that in bats intestinal length and ... -
Bovine spongiform encephalopathy risk management in Latin America: Costa Rica as a representative country for risk management and policy
(Inderscience Enterprises Ltd., 2010)Costa Rica is a representative Latin American country with significant regional cattle production for its size. The country experienced an exceedingly low challenge for bovine spongiform encephalopathy (BSE) as evidenced ... -
Caracterización del paisaje y análisis del límite oeste del Parque Nacional Carara, Costa Rica: implicaciones para la conservación de la biodiversidad
(Museo Nacional de Costa Rica, 2012)It is unknown if the current size and shape of protected areas (PA) in Costa Rica favors retention of viable populations of wildlife. The western border of Carara National Park (CNP) and its surroundings were characterized ... -
Caracterización hidrogeoquímica de los acuíferos volcánicos Bar va y Colima en el Valle Central de Costa Rica
(Instituto Mexicano de Tecnología del Agua, Tecnología y ciencias del agua, 2016)La composición química del agua subterránea está determinada por procesos antropogénicos y por interacciones con el material geológico que conforma el acuífero. El presente estudio describe la caracterización ... -
Cloning, purification and characterization of nigrelysin, a novel actinoporin from the sea anemone Anthopleura nigrescens
(Elsevier B.V., 2019)Actinoporins constitute a unique class of pore-forming toxins found in sea anemones that being secreted as soluble monomers are able to bind and permeabilize membranes leading to cell death. The interest in these proteins ... -
Comparison of amino acid profiles of feeds and fish as a quicic metiiod for selection of feed ingredients: a case study for Colossoma mactopomum (Cuvier)
(John Wiley & Sons, 1996)The amino acid profile of Colossoma macropomum was determined. Indispensable amino acid levels were sim ilar to those reported in other fish species. Suitability of local. Costa Rican, ingredients as protein sources for ... -
Cooling, cryoprotectant and hypersaline sensitivity of penaeid shrimp embryos and nauplius larvae
(Elsevier, 2001-10-23)The sensitivity of embryos of the penaeid shrimp, Trachypenaeus byrdi, to cooling, cryoprotec tant exposure dimethyl sulfoxide : DMSO, sucrose, methanol and glycerol , and hypersaline Ž . treatment was assessed in order ... -
Cultivation potential of Vanilla crop wild relatives in two contrasting land use systems
(Elsevier (Países Bajos), 2023-09)Vanilla is an important cash crop for many smallholder farmers around the tropics, and a highly appreciated spice used in a wide range of products. The crop species Vanilla planifolia is, however, facing a number of ... -
Development and Deterioration of Spermatophores in Pond-Reared Penaeus vannamei
(World aquaculture society, 1993)Spermatophore deterioration in pond-reared Penaeus vannamei was studied, and spermatophore quality was evaluated and improved. Sperm production of males collected from grow-out ponds was increased by two techniques: ... -
Dietary resource overlap among three species of frugivorous bat in Costa Rica
(Cambridge University Press, 2019-05-03)The maintenance of biodiversity in tropical forests is thought to be dependent on fine-scale mechanisms of niche partitioning that allow species to coexist. This study examined whether three species of short-tailed fruit ... -
Disadvantages of living in a populous neighborhood for sit-andwait predators: Competition for space reduces pit-trap size in antlion larvae
(Blackwell Publishing Ltd, 2020-11-01)The study of how trap design responds to biotic and abiotic conditions can help to understand the selective forces affecting the foraging of trap-building organisms. We experimentally tested whether pit design can be ... -
Dolphin sympatric ecology in a tropical fjord: habitat partitioning by bathymetry and topography as a strategy to coexist
(Cambridge University Press, 2007)Sympatric species need to avoid pervasive competition to counter its suppressor effects. Dietary divergence and habitat partitioning are strategies for coexistence. Golfo Dulce is a tropical fjord located in the southern ... -
Downward but stable trend in the abundance of arribada olive ridley sea turtles (Lepidochelys olivccea) at Nancite Beach, Costa Rica (1971-2007)
(Chelonian Research Foundation, 2009)Although the olive ridley sea turtle (Lepidochelys olivacea) is the most abundant sea turtle in the world, the species has exhibited a significant decrease in the size of arribadas at Nancite Beach, Costa Rica, since its ... -
Effect of dietary lipid level on protein utilization and the size and proximate composition of body compartments of Colossoma macropomum (Cuvier)
(Wageningen Agricultural University, 1997)Juvenile Colossoma macropomum were fed ad libitum diets containing either 30% or 40% protein, while the dietary lipid level varied between 5% and 20%. Growth and protein utilization efficiency increased with the dietary ...