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Distribución de Platystele sylvestrei (Orchidaceae: Pleurothallidinae): Primeros registros para Colombia
Distribution of Platystele sylvestrei (Orchidaceae: Pleurothallidinae): First records for Colombia
(2016)
Objetivo: Determinar la distribución y modelación del nicho ecológico de Platystele sylvestrei. Metodología: Se realizaron salidas de campo en el departamento del Meta con la finalidad de inventariar la flora Orchidaceae; ...
Patterns of second‐to‐fourth digit length ratios (2D:4D) in two species of frogs and two species of lizards at La Selva, Costa Rica
(2012)
It is now well documented that androgen and estrogen signaling dur-
ing early development cause a sexual dimorphism in second-to-fourth digit length ratio (2D:4D). It is also well documented that males of mam- malian ...
Pollination of Trichosalpinx (Orchidaceae: Pleurothallidinae) by biting midges (Diptera: Ceratopogonidae)
(2018)
Pleurothallidinae (Epidendreae) are a megadiverse Neotropical orchid subtribe comprising > 5100 species, most of which are probably pollinated by Diptera. The role of pollinators as drivers of species diversity is largely ...
Primer informe del comportamiento depredador de Psarocolius montezuma (Icteridae) sobre un juvenil de Thraupis episcopus (Thraupidae), San Pedro, Costa Rica
(2012)
Se describe el comportamiento depredador de Psarocolius montezuma (Icteridae)
sobre un juvenil de Thraupis episcopus (Thraupidae) observado en mayo de 2012
en San Pedro Montes de Oca, Costa Rica. La persecución se observó ...
Informe técnico sobre la importancia biológica de la Reserva Forestal de San Ramón
(1991-04)
En el documento se presenta una síntesis de las actividades de investigación que se han llevado a cabo en la Reserva Forestal de San Ramón, en las que han participado investigadores de la Universidad de Costa Rica y el ...
Blooming plant species diversity patterns in two adjacent Costa Rican highland ecosystems
(2023-01-12)
The Costa Rican Paramo is a unique ecosystem with high levels of endemism that is geographically isolated from the Andean Paramos. Paramo ecosystems occur above Montane Forests, below the permanent snow level, and their ...
Two new species of Pleurothallis (Orchidaceae: Pleurothallidinae) allied to P. cardiothallis, with a note on flower activity
(2017)
Two new species of Pleurothallis subsection Macrophyllae-Fasciculatae from Costa Rica, allied to P. cardiothallis, are described and illustrated, and their relationships discussed. Pleurothallis scotinantha is compared ...
Photobiochemical changes in Chlorella g120 culture during trophic conversion (metabolic pathway shift) from heterotrophic to phototrophic growth regime
(2020)
Physiological and photobiochemical changes and growth in the heterotrophic strain Chlorella vulgaris g120 were studied during
trophic conversion from heterotrophic to phototrophic growth regime. After the exposure of the ...
Avistamientos de Orcinus orca (Linnaeus, 1758) (Cetartiodactyla: Odontoceti: Delphinidae) en el Pacífico costarricense (1990-2020)
Sightings of Orcinus orca (Linnaeus, 1758) (Cetartiodactyla: Odontoceti: Delphinidae) in the Costa Rican Pacific (1990-2020)
(2021-09)
Las orcas son cetáceos poco estudiados en el trópico, y sus desplazamientos por aguas costarricenses han sido escasamente abordados. Son animales de gran importancia ecológica debido a su rol como depredadores top, y ...