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Mostrando ítems 1-10 de 18
Kinship, association, and social complexity in bats
(2019-01)
Among mammals, bats exhibit extreme variation in sociality, with some species living largely solitary lives while others form colonies of more than a million individuals. Some tropical species form groups during the day ...
Composition and species richness of the herpetofauna of a Costa Rican University campus
(2019)
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, ...
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 ...
Comparing the efficiency of monofilament and traditional nets for capturing bats
(2021)
Traditional mist nets used for capturing bats have several drawbacks, particularly that they are inefficient at sampling many insectivorous species. One possible alternative is to use monofilament nets, whose netting is ...
Contrasting Thermal Strategies of Montane Neotropical Bats at High Elevations
(2018)
In the Neotropics, captive vespertilionid bats substantially reduce their metabolic rate at low ambient temperatures, similar to their temperate counterparts, whereas the ability of phyllostomids to lower metabolic rate ...
Plan de manejo y desarrollo de la Reserva Biológica Alberto Ml. Brenes: versión para discusión
(2014-01-21)
Expone un plan de manejo y desarrollo para la Reserva Biológia Alberto Manuel Brenes, la cual es administrada por la Universidad de Costa Rica. Es un instrumento de planificación orientador de todas las acciones que deben ...
Signal repertoire and contest outcome in the Jacky dragon
(2016)
Establishing dominance is an important mechanism for determining access to
resources such as mates or territories. However, levels of aggression and dominance
may vary among populations based on history and variation in ...
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 ...
Morphological and ecological variation of a tropical anoline lizard: are agonistic interactions shaping ecomorphological relationships?
(2018)
Ecologists have long been intrigued by which factors influence habitat use by an organism and how communities are structured. However, the links between habitat preferences, morphology, biotic interactions and community ...
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 ...