Now showing items 21-30 of 77
Oxybelis aeneus: aggressive interactions with the clay-colored trush (Turdus grayi)
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
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 ...
Composition and species richness of the herpetofauna of a Costa Rican University campus
The campus of the University of Costa Rica in Limón port city, Costa Rica, known as Sede del Caribe (SC), includes a secondary forest of ca. 40 years old. This forest holds a great potential for environmental education, ...
Contact calling in context: intra- and intergroup variation in vocalization rates depend on a call’s function
To maintain group cohesion while coordinating group movements, individuals might use signals to advertise the location of a route, their intention to initiate movements, or their position at a given time. In highly mobile ...
Proceedings of the ICSEM10 Costa Rica
Este documento corresponde con la memoria completa del X Congreso Internacional sobre Sistemática y Ecología de Mixomicetes (ICSEM10) celebrado en la Sede del Atlántico de la Universidad de Costa Rica entre el 25 y el 28 ...
Ontogeny of an interactive call-and-response system in Spix's disc-winged bats
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 ...
This is a slideshow produced for the 10th International Congress on the Systematics and Ecology of Myxomycetes, held in the city of Turrialba (UCR, Sede del Atlántico) in February 2020.
The importance of group vocal behaviour in roost finding
Individuals benefit from socially acquired information to avoid predation risks and enhance foraging efficiency. Spix's disc-winged bats, Thyroptera tricolor, form very stable social groups despite their need to find a new ...
Laboratorio de matemática: Fascículo #1
(Universidad de Costa Rica. Sede de Occidente, 1992, 1992)
Este fascículo consiste en una serie de guías para utilizar los modelos didácticos correspondientes a diversos conceptos matemáticos incluidos en los programas de los cursos de la enseñanza primaria y secundaria. Incluye ...