Biología
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Pollinia as "pseudopalpi" on Archisepsis in Costa Rica: accidental or opportunistic?
(2022-11)Male sepsids carrying pollinia as pseudopalpi were observed at three separate bait stations (small dung baits set out to attract other flies) about 500m apart along a side trail in the Peninsula Sector of Parque Nacional ... -
Efecto de la disponibilidad de refugios en la distribución espacial del murciélago de ventosas, Thyroptera tricolor
(2023)La disponibilidad de recursos puede influenciar los patrones de uso del espacio y comportamiento de las especies. Para especies especialistas en un recurso, la distribución y abundancia de este puede llevar a la competencia ... -
Caracterización molecular de bacterias simbióticas provenientes de especies forestales leguminosas y evaluación de la respuesta de inoculación
(2023-05-26)La diversidad de bacterias fijadoras de nitrógeno asociada con especies forestales tropicales ha sido relativamente poco estudiada. En este estudio se aislaron bacterias simbiontes en nódulos de ocho especies forestales ... -
Agresividad y competencia por refugios en el murciélago Kerivoula hardwickii
(2022)En la competencia por recursos, generalmente se ha pensado que los animales con mayor tamaño y masa corporal tienen más probabilidades de ganar batallas. Sin embargo, recientemente se ha descubierto que las diferencias de ... -
Aristolochia hondurensis (Aristolochiaceae), a new species from Honduras
(2023-02-23)Aristolochia hondurensis, a new species of Aristolochia series Hexandrae subseries Hexandrae, endemic to Honduras, is described and illustrated. It is a species morphologically similar to Aristolochia anguicida, from which ... -
Demystifying Orchid Pollination
(2023)Demystifying Orchid Pollination explores the fascinating natural history of orchids and the extraordinary means by which they reproduce. Author Adam P. Karremans reveals their hidden secrets, from the cruel obsession of ... -
Beyond the various contrivances by which orchids are pollinated: global patterns in orchid pollination biology
(2023)Orchidaceae show remarkable diversity in pollination strategies, but how these strategies vary globally is not entirely clear. To identify regions and taxa that are data-rich and lend themselves to rigorous analyses or are ... -
Two new cauliflorous species of Aristolochia subseries Anthocaulicae (Aristolochiaceae) from southern Central America
(2022)Two new cauliflorous species of Aristolochia subseries Anthocaulicae from southern Central America are described and illustrated. Aristolochia guanacastensis from northwestern Costa Rica resembles A. ruiziana, from which ... -
Evaluación de prácticas agrícolas sobre la comunidad de aves en un paisaje cafetalero con distintos tipos de manejo
(2023)Entre los varios métodos de producción agrícola extensiva existentes, se producen distintos impactos ambientales y sociales. Uno de los más grandes constituye la pérdida de hábitat para la vida silvestre. La agricultura ... -
Sweet as Vanilla hartii: Evidence for a nectar-rewarding pollination mechanism in Vanilla (Orchidaceae) flowers
(2023-05-01)Little is known about the pollination mechanisms of species belonging to the genus Vanilla (Orchidaceae). Both autonomous self-pollination and animal-mediated pollination mechanisms seem to exist amongst the Vanilla species, ... -
Ricciocarpos natans (Marchantiophyta, Ricciaceae), new to Costa Rica, with a survey of its presence in Latin America
(2023-03-22)Background and Aims: Ricciocarpos natans is one of the few species of truly aquatic hepatics. It has a subcosmopolitan distribution and appears to be more common in temperate areas. The species has been considered to be ... -
Biology, Behavior, and Larval Morphology of Salbia lotanalis (Lepidoptera: Crambidae), a Potential Biological Control Agent of Miconia calvescens (Myrtales: Melastomataceae) From Costa Rica
(2014-11-01)The leaf roller Salbia lotanalis Druce (Lepidoptera: Crambidae), a potential biological control agent of Miconia calvescens de Candolle (Melastomataceae), was studied in Costa Rica. Larvae were collected from a Þeld site ... -
Efecto del aislamiento urbano espacial y temporal en la diversidad genética, características acústicas y morfológicas de Melozone Leucotis (Aves: Passerellidae)
(2023)La urbanización genera alteraciones en los ecosistemas, incluyendo la fragmentación de los hábitats naturales, lo que produce el aislamiento de poblaciones de una misma especie. Como consecuencia, se espera que el flujo ... -
Rapid diversification of the Variable Seedeater superspecies complex despite widespread gene flow
(2022)Disentangling the evolutionary relationships of rapidly radiating clades is often challenging because of low genetic differentiation and potentially high levels of gene flow among diverging taxa. The genus Sporophila ... -
Invasive potential of Baccharis halimifolia: Experimental characterization of its establishment capacity
(2019-06)The early development of estuarine vegetation is a key aspect in the establishment of new individuals in invasion processes. The aim of this research was to characterize experimentally the survival capacity and early ... -
Mapping estuarine vegetation using satellite imagery: The case of the invasive species Baccharis halimifolia at a Natura 2000 site
(2019-02)The invasive shrub Baccharis halimifolia is a threat to the environmental health of many estuarine protected areas throughout Europe. It displaces saltmarsh vegetation and creates monospecific stands that diminish the ... -
Ecuación para estimar la biomasa arbórea en los bosques tropicales de Costa Rica
(2013)Una de las medidas más relevantes para la mitigación del cambio climático es la conservación y regeneración del bosque en nuestros países. La cantidad de carbono que se almacena en la biomasa arbórea pasa a ser una ... -
Asociación entre la morfología alar y el uso del hábitat en seis especies de palomas (Columbidae) neotropicales
(2019)Biomechanics, behavior, and natural history influence wing dimension and shape. Wing design often correlates with features of the habitat in which each species is found. Doves and pigeons (Columbidae family) range from ... -
Can seedlings’ physiological information improve vegetation distribution predictions at local scales?
(2020-04-17)Physiological information has been suc- cessfully included in marine Species Distribution Models (SDM) before, but few have considered a previous development stage that could have affected the present-day distribution ... -
Long-term analysis of Zostera noltei: A retrospective approach for understanding seagrasses' dynamics
(2017-09)Long-term studies are necessary to establish trends and to understand seagrasses' spatial and temporal dynamic. Nevertheless, this type of research is scarce, as the required databases are often unavailable. The objectives ...
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