Composition and variation of the diet of Vipera aspis francisciredi in relation to age and reproductive stage

摘要: The composition of the diet has been investigated in some populations Vipera aspis francisciredi from Tolfa Mountains (central Italy) and related to snake size reproductive stage. percentage diet, niche breadth, vipers which fed every month average time elapsed between two consecutive feedings, have analyzed. Some aspects relationships their prey also investigated.