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Now showing items 11-20 of 36
Camelobaetidius guaycara, a new species of Baetidae (Ephemeroptera) from Costa Rica, Central America
(Magnolia Press, 2018-06-14)
The nymphs of a new species of Camelobaetidius (Ephemeroptera: Baetidae) possibly related to the South American species of this genus were found on the Atlantic and Pacific slopes of Costa Rica. Among other characteristics ...
Contrasting patterns of taxonomic, phylogenetic and functional variation along a Costa Rican altitudinal gradient in the plant family Melastomataceae
(Cambridge University Press, 2018)
The functional composition of plant communities in montane regions has been studied for decades, and most
recent analyses find that environmentally favourable landscapes at lower altitudes tend to be dominated by species ...
Feeding ecology of invasive lionfish (Pterois volitans and Pterois miles) in the temperate and tropical western Atlantic
(Universidad Nacional (Costa Rica), 2018-03-11)
Numerous location-based diet studies
have been published describing different aspects of
invasive lionfish (Pterois volitans and Pterois miles)
feeding ecology, but there has been no synthesis of
their diet composition ...
Moribaetis brachiostrinus (Ephemeroptera: Baetidae), a new species of mayfly from Costa Rica
(Magnolia Press, 2018)
A new species of Moribaetis is described based on nymphs from the Nicoya peninsula. The new species can be distin guished from the other described species of the genus, among other characteristics, by its short antennae, ...
Parásitos gastrointestinales de aves silvestres en un ecosistema ribereño urbano tropical en Heredia, Costa Rica
(Universidad de Costa Rica, 2018)
Gastrointestinal parasites of wild birds in a tropical riverine urban ecosystem in Heredia, Costa
Rica. In urban ecosystems, rivers provide various ecosystem services, among them, serving as interurban bio logical corridor, ...
Parámetros poblacionales y hábitos alimenticios del pargo mancha (Lutjanus guttatus) en el Área Marina de Pesca Responsable Paquera-Tambor, Golfo de Nicoya, Costa Rica
(Universidad Nacional (Costa Rica), 2018-07-31)
El pargo mancha Lutjanus guttatus es una de las especies de peces de mayor importancia comercial capturada en el Golfo de Nicoya, que desde hace muchos años ha venido sufriendo una fuerte presión pesquera, principalmente, ...
Five New Species of Diplazium Sw. (Athyriaceae) from Nicaragua, Costa Rica and Colombia
(Universidad Nacional (Costa Rica), 2018-04-13)
Five new species are described in the genus Diplazium Sw. from Nicaragua,
Costa Rica and Colombia, as results of studies in the Neotropical ferns. The
new species are Diplazium chirripoense A. Rojas, Diplazium cornutum ...
A proposed solution to the species problem in velvet worm conservation (Onychophora)
(Universidad Estatal a Distancia, 2018)
Onychophorans or velvet worm are the only phylum
without extant marine species and the only invertebrates with a true
placenta, but most species are rare and thus more likely to become
extinct. A key obstacle for ...
La evaluación externa: Un mecanismo para garantizar la calidad de la educación superior en Costa Rica
(Universidad Nacional (Costa Rica), 2018-03-31)
El objetivo de este estudio es evidenciar que la acreditación conlleva un proceso dinámico y
complejo que permite el mejoramiento de la educación superior, debido a que asegura y promueve la
calidad en todos los aspectos ...
Optimización en la producción de la microalga marina Nannochloropsis oculata en un fotobiorreactor tubular helicoidal
(Tecnológico de Costa Rica (TEC) (Costa Rica), 2018-06-29)
La producción de microalgas ha tomado importancia en los últimos años, debido a sus diversos
usos en la producción de biocombustibles, alimentación tanto humana como animal, y en
biorremediación; es por ello que la ...