Oviposition and hatchling diet of a snail-eating snake Pareas iwasakii (Colubridae: Pareatinae)
Oviposition and hatchling diet of a snail-eating snake Pareas iwasakii (Colubridae: Pareatinae)
复制标题
DOI：
10.3105/1345-5834(2007)26
复制
发表时间：
2007-06-01
影响因子：
0.7
通讯作者：
Hoso, Masaki
中科院分区：
文献类型：
--
作者：
Hoso, Masaki
岩崎帕雷阿斯是一种日本特有的罕见的帕雷阿斯蛇，被认为是陆地蜗牛的饮食专家。我观察了这个物种在圈养环境下的产卵和孵化饮食。其中一只雌性于9月30日产下6枚蛋，其中一枚蛋于2004年11月26日孵化。幼蛇以幼小的陆地蜗牛的柔软身体为食，留下空壳，很可能是像成年蛇一样，用下颚把前者从后者身上取出来。这一观察结果表明，P. iwasakii的饮食习惯没有表现出个体发生的变化。
Pareas iwasakii, a rare pareatine snake endemic to Japan, is considered a dietary specialist on land snails. I observed the oviposition and hatchling diet of this species in captivity. One female laid six eggs on 30 September, and one of these eggs hatched on 26 November 2004. The hatchling fed on the soft body of juvenile land snails, leaving empty shells, most likely by extracting the former from the latter using its mandibles as do the adult snakes. This observation suggests that the dietary habits of P. iwasakii do not exhibit ontogenetic changes.