University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium.
J Chem Ecol. 1996 Jan;22(1):13-22. doi: 10.1007/BF02040196.
We compared the behavior of two subspecies ofPodarcis hispanica lizards in cages that had been chemically marked by a saurophagous snake, the viperVipera latastei. One of the subspecies (P.h. atrata) has experienced a relaxation from predation pressure by this viper, as snakes were eradicated from the island it inhabits over 100 years ago. Nevertheless, individuals fromP.h. atrata responded to the snake's chemicals similarly to individuals from a population ofP.h. hispanica, currently sympatric withV. latastei. Lizards exhibited more stress-indicating behaviors (foot shakes, tail vibrations, sudden starts), became less mobile, and tongue-flicked more while moving in a snake-inhabited terrarium than when in a clean, unfamiliar terrarium.
我们比较了两种西班牙蜥蜴（Podarcis hispanica）亚种在笼子中的行为，这些笼子被一种食蜥蜴的蛇（Vipera latastei）的化学物质标记过。其中一个亚种（P.h. atrata）经历了来自这种蛇的捕食压力的放松，因为 100 多年前，蛇就从它们栖息的岛屿上被消灭了。然而，来自 P.h. atrata 的个体对蛇的化学物质的反应与来自目前与 V. latastei 共存的 P.h. hispanica 种群的个体相似。蜥蜴在有蛇居住的栖息地中表现出更多的应激行为（脚部抖动、尾巴振动、突然启动），移动性降低，在移动时舔舌头的次数也更多，而在干净、陌生的栖息地中则较少。
