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Resúmenes de tesis
(2010-05-20)
A matrix model for the population dynamics of Hyptis suaveolens, an annual weed
(2009-12-08)
Hyptis suaveolens is a neotropical annual weed that invades savanna agricultural systems. Although fire, grazing and soil disturbances have been proposed to cause its local dominance, these factors have not been experimentally ...
Reproductive ecology of Psychotria poeppigiana (RUBIACEAE): a comparative analysis between long-styled and short-styled plants
(2009-12-08)
We investigate morph-specific patterns in flower morphology, nectar concentration, and foraging behavior of flower visitors in a population of Psychotria poeppigiana (Rubiaceae), a distylous species of secondary forests ...
Epizoic polychaetes (annelida: polychaeta) on Crassostrea rhizhophorae (guilding, 1828) from la restinga lagoon, Margarita island, Venezuela
(2009-12-08)
Species richness of epizoic polychaetes on the mangrove oyster, Crassostrea rhizophorae (Guilding 1828), was studied. Monthly collections (January-August, 2001) were made. Oysters were separated from mangroves roots by ...
Ritmo diario de alimentación y tamaño de presa en cuatro especies simpátricas de plecoptera (insecta) en un río tropical andino
(2009-12-08)
Se comparó la actividad diaria de alimentación y el tamaño de presas consumidas por las ninfas de Plecoptera de Anacroneuria chorrera, A. cacute, A. paleta y A. tachira, especies que viven en simpatría en el río La Picón ...