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Effect of exposition to chlorpyrifos upon plasmatic cholinesterases, hematology and blood biochemistry values in Bothrops asper (Serpentes: Viperidae)
(2018)
The terciopelo (Bothrops asper), is one of the most important venomous snakes in Costa Rica and common on agriculture where insecticides are frequently used for pest control. To assess the exposure to
organophosphates on ...
Is mating in the Túngara Frog (Engystomops pustulosus: Leptodactylidae) random or non-random?
(2017)
Random and non-random mating result from sexual selection, and both can occur across populations
of the same species. Body size is a trait commonly used to determine if mating is random or
non-random, and for the latter ...
Hemidactylus frenatus (Common House Gecko). Diet
(2017)
Hemidactylus frenatus is an invasive species in the Americas that has succeeded in establishing populations in Costa Rica (Savage 2002. The Amphibians and Reptiles of Costa Rica: A Herpetofauna between Two Continents, ...
Oxybelis aeneus: aggressive interactions with the clay-colored trush (Turdus grayi)
(2018)
In this note an aggressive encounter between a brown
vine snake (Oxybelis aeneus) and a clay-colored thrush
(Turdus grayi) is reported. The observations took place in
the campus of the University of Costa Rica, Limón ...
Behavioural responses of reptiles to visitors of protected areas in Costa Rica
(2016)
Tourists can have a strong impact on the behaviour of wild animals, modifying
foraging strategies, diet and habitat use, increasing stress, and altering communication
and escaping behaviour. Such behavioural changes have ...
Mosses as spore traps for myxomycetes
(2020-07-06)
Small-mesh nylon bags filled with autoclaved samples of mosses were placed out in the field in northwest Arkansas and central Costa Rica to assess the extent to which mosses could serve as spore traps for myxomycetes. The ...
Ontogeny of an interactive call-and-response system in Spix's disc-winged bats
(2020)
We investigated the ontogenetic changes of two call types, the inquiry call and the response call, which comprise an interactive communication system in Spix's disc-winged bats, Thyroptera tricolor. We documented structural ...
Assemblages of corticolous myxomycetes associated with species of Pinus (Pinaceae) in four different regions of the world
(2020-07-02)
Corticolous myxomycetes associated with four species of pine in different regions of the
world were investigated. Samples of bark collected from 20 trees in each region were used to prepare 240 moist chamber cultures, ...
Virulencia de hongos nativos del orden Hypocreales sobre Bemisia tabaci, estudio de las condiciones óptimas para el desarrollo de los hongos y registros de moscas blancas silvestres para Costa Rica
(2020)
Los hongos Hypocreales son hongos entomopatógenos con potencial en control biológico de insectos plaga. El objetivo de este estudio fue identificar especies de hongos patógenos que parasitan insectos de la familia Aleyrodidae ...
Caracterización de tipos virales causantes de la bronquitis infecciosa aviar (IBV) en granjas de pequeños y medianos productores avícolas en Costa Rica
Molecular characterization of an avian GA13-like Infectious bronchitis virus full-length genome from Costa Rica
Caracterización molecular del gen S1 en aislamientos tipo GI-17 y GI-13 del virus de la bronquitis infecciosa (IBV) en Costa Rica, entre los años 2016 y 2019
Reporte de Caso: Descripción de un brote de bronquitis infecciosa aviar (IBV) en el año 2016 en Costa Rica, asociado a la variante GA13
(2024)
La bronquitis infecciosa (IB) es una enfermedad muy contagiosa del tracto respiratorio de las aves. Puede afectar también el tejido entérico y reproductivo, por lo que ha acarreado problemas económicos, al disminuir el ...