Abstract: The seed fate in early successional habitats can determine plant composition and regeneration capacity after disturbance. Pre- dispersal seed removal has been poorly studied in Mediterranean habitats, especially in burned and logg
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Abstract: The seed fate in early successional habitats can determine plant composition and regeneration capacity after disturbance. Pre- dispersal seed removal has been poorly studied in Mediterranean habitats, especially in burned and logg
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Resumen: En Guatemala el 90% de las fuentes de abastecimiento del agua urbana son rurales (70% superciales). Se eligieron tres ríos de la cuenca alta del Sis Icán (Chitá, Ixconá-Sis y Sacobá), vertiente del Pacíco, para evaluar la calidad del
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Abstract: Asthma is a chronic inflammatory disease of the airways. It is very common among children and is a major cause for emergency room visits and missed school days. Costa Rica has one of the highest rates of childhood asthma in the world; so it is imp
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Abstract: the Pigeon Pea is a legume that has become an alterna- tive food security crop, associated with improvement of the soil, fodder, green manure and the protection of hidric basins. It is rich in vitamins and proteins and considered nutritious for an
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Resumen: Se documentan las especies productoras de toxinas con importancia en salud pública, se tomaron muestras durante los años 2010-2012 en la costa de Chiapas, con una red (20μm de malla) por arrastres verticales (a 15m), fijadas
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Resumen: Las poblaciones de nemátodos pueden afectar la producti- vidad en potreros de ganado. Cada 30 días durante los meses de enero 2004 y enero 2005 medimos las poblaciones de nematodos en la rizos- fera en el noreste de Costa Rica. El sustrato, el momento del mu
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Resumen: Los cultivos de piña reducen el tamaño de los fragmentos de bosque y generan presión sobre la biodiversidad en los remanentes. Para determinar los posibles efectos negativos de la fragmentación de los bosques se evaluó la diversidad y composición d
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Abstract: Disease is an important factor in fisheries, affecting both wild and cultured species. Using standard parasitological techniques we determined the prevalence, mean intensity and abundance of en- doparasites from 250 specimens of two cichlid
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Abstract: The Indian Major Carp, Labeo rohita , is a geographically widespread and economically important food sh species in tropical freshwater of India and adjacent countries. We studied the length- weight relationships of 1 033 specimens
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Resumen: Practicamente no hay información de la biología de Lolliguncula (Loliolopsis) diomedeae . Analizamos especimenes captura- dos en cuatro viajes de pesca de camarón en el Golfo de Tehuantepec durante 1999-2001, 2004 y 2006. La madurez se
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Abstract: Hemibrycon is a group of freshwater characid sh species rst recognized by Günther (1864) as a subgenus of Tetragonopterus, and now included in the subfamily Stevardiinae. There are 21 spe- cies recorded from the rivers of Colombia
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Abstract: We consider that some bird species categorized as “harm- ful” by Monge in his “Updated list of harmful birds of Costa Rica (2012)” should not be in the list. Birds should not be considered “harmful”, “pest” or “potential pest” in Costa Ri
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