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Título

Effects of environmental factors vs. inside constraints on the escape behaviour of Schreibers green lizards (Lacerta schreiberi)

AutorKopena, Renata
DirectorMartín Rueda, José ; Herczeg, G.
Palabras claveLacerta schreiberi
Fecha de publicación2011
ResumenPredation is one of the major selection pressures that determine the behaviour of animals (Lima 1988). But the predation risk of a specimen can depend on a lot of factors and the animals can compensate their behaviour fitting to the situation and have very flexible escape behaviour. Environmental and inside factors equally can infuence the decision of the prey when and where escape. In our study we testing int he field whether among the sex, season, microhabitat type, refuge distance and escape angle which are the real important factors on the antipredator behaviour of Lacerta schreiberi. We found that the inside factors (sex, season) have not any effect for the escape behaviour, solely the environmental factors have influence for the approach distance. In herbal substrate approach distance depend on the refuge distance but there is no relationship between this two distance on rock substrateAnalysing the effect of interaction of the refuge distance and escape angle for the approach distance we found if the animal is close to the refuge, they permit the predator close to them independent on escape angle, if the escape angle is high the lizards permit the predator close independent on the refuge distance, but if the escape angle is low and the refuge is far the animals begin escape early.
Descripción20 páginas, 4 figuras , 1 table y 4 appendix
URIhttp://hdl.handle.net/10261/88163
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