October 26 2010

12:00 BSRB 154

Ecolunch: Raquel Monclus
Dept of Ecology and Evolutionary Biology, UCLA

Causes and Consequences of Anti-Predator Behavior


Predation is an important driving force in evolution. Animals respond physiological and behaviorally to predation risk, trying to avoid the direct effects of predators (consumption). Anti-predator responses have costs associated, as they interfere with a wide range of behaviors such as foraging, mating, etc. Thus, animals must assess their actual risk of predation and respond accordingly, in order to minimize the costs associated (indirect effects of predators). Several factors, both extrinsic and intrinsic, might modify this decision making process. The goal of my research is to identify the factors that modify different responses in prey species and how these decisions affect fitness later in life. I will present some results of my research in European rabbits Oryctolagus cuniculus, spotless starlings Sturnus unicolor and yellow-bellied marmots Marmota flaviventris, where I integrate the study of proximate and ultimate mechanisms, trying to understand the decision making in risk taking behavior.















































































































































































































































































































































































































































































































this is idtest: