Insights into how predator diversity, population density and habitat type may affect defensive behaviour in a Mediterranean lizard

摘要: Various factors may alter anti-predatory responses among conspecifics. Here we assess some of these using three populations a Mediterranean lizard (Acanthodactylus schreiberi) in Cyprus that differ their habitat type, predator diversity and population density. We expected predation would affect flight initiation distance (FID; the approach allowed to an observer before flees), escape (ED; covered by from point attempt starts first place stops) tail autotomy (autotomy rates, economy autotomy, post-autotomy movement). also predicted juveniles, being more exposed predators, be effective defensive responses. Our findings suggest density appear associated with most traits but were not FID ED, which are better explained refuge availability. The only ontogenetic difference was detected ...