Spatial and trophic niche differentiation in two sympatric lizards (Tropidurus torquatus and Cnemidophorus ocellifer) with different foraging tactics

摘要: In a ‘restinga’ habitat of southeastern Brazil, we studied the food habits and microhabitat use two lizards with distinct foraging modes: tropidurid Tropidurus torquatus, sit-and-wait predator, teiid Cnemidophorus ocellifer, wide forager. The diet species differed strongly, indicating low level similarity in their trophic niche. predator fed mainly on mobile prey, whereas forager sedentary prey (larvae). spatial niche breadth T. torquatus was larger than that C. ocellifer. Despite interspecific differences, overlapped greatly micro-habitat use. data indicate at Linhares lizard more resources microhabitat, most differences reflect patterns species.