Listar Biología por procedencia "UCR::Sedes Regionales::Sede del Caribe"
Mostrando ítems 1-18 de 18
-
A multi-locus molecular phylogeny for Australia’s iconic Jacky Dragon (Agamidae: Amphibolurus muricatus): Phylogeographic structure along the Great Dividing Range of south-eastern Australia
(2014)Jacky dragons (Amphibolurus muricatus) are ubiquitous in south-eastern Australia and were one of the first Australian reptiles to be formally described. Because they are so common, Jacky dragons are widely used as a model ... -
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 ... -
Biology of snakes of the genus Tretanorhinus: an integrative review
(2019)Many aspects of the biology of various snake species remain unknown, and the extent of this lack of information is not always clear. As new research usually depends upon previous findings, the gaps in our knowledge and ... -
Calling for more accurate information in aquarium trade: analysis of live-fish import permits in Costa Rica
(2017)Ornamental fish trade is a growing business around the world, but also a major pathway for the introduction of potentially invasive species. Trade patterns and policies have been evaluated in high-income countries while ... -
Ecología del Homo sapiens y su relación sociocultural
(2017)Muchos individuos de la especie Homo sapiens consideran estar separada del resto de criaturas del Reino Animal. Esto implica que hay un desligamiento de las relaciones entre el ser humano y el entorno natural, cuyas causas ... -
Effect of temperature on the visual displays of the Jacky dragon
(2019)In ectotherms such as lizards, temperature is a key determinant of their behavior and their ability to signal to conspecifics. We asked whether changes in the thermal environment along the distribution of an agamid lizard, ... -
First record of the Greenhouse frog, Eleutherodactylus planirostris (Anura: Eleutherodactylidae), in Costa Rica
(2016)Introduced species can have a negative impact on native species, so that detection of new arrivals is fundamental to avoid establishment of breeding populations. Several species of frogs and lizards have been introduced ... -
Geographic variation in aggressive signalling behaviour of the Jacky dragon
(2015)Signal diversification is often the product of sexual and/or natural selection and may be accompanied by genetic differentiation or simply reflect a plastic response to social and environmental variables.We use an agamid ... -
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, ... -
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 ... -
Mass movement of individuals at Carara National Park
(2021)The video shows the movement of individuals of the Green-and-Black Poison Dart Frog, Dendrobates auratus, under rainy conditions. The filmed individuals moved close to the researchers and in close proximity of conspecifics. ... -
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 ... -
Occurrence of pharmaceuticals, hazard assessment and ecotoxicological evaluation of wastewater treatment plants in Costa Rica
(2020)The continuous release of pharmaceuticals from WWTP effluents to freshwater is a matter of concern, due to their potential effects on non-target organisms. The occurrence of pharmaceuticals in WWTPs and their associated ... -
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 ... -
Potential vibratory signal performed by a male
(2021)(English) The video shows the vibratory movement of the fourth toe performed by a male of the Green-and-Black Poison Dart Frog, Dendrobates auratus, at Carara National Park. The toe-tapping behaviour was performed in front ... -
Revisión de los efectos del cambio climático sobre la biodiversidad de los trópicos
(2016)La temperatura ambiental y los patrones de precipitación han sufrido cambios signifi cativos durante las últimas décadas. Estos cambios globales del clima han generado alteraciones en las características biológicas de los ... -
Sexual size dimorphism and ecomorphology of the Berthold’s bush anole (Polychrus gutturosus) in Costa Rica: Preliminary data
(2019)Sexual size dimorphism (SSD) is the result of sexual or natural selection operating differently on the body sizes of females and males. Males of most lizard species are larger than females, suggesting intrasexual selection on ... -
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 ...