Feeding Ecology of the California Mountain Kingsnake, Lampropeltis zonata (Colubridae)
Feeding Ecology of the California Mountain Kingsnake, Lampropeltis zonata (Colubridae)
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加州山王蛇 Lampropeltis zonata（游蛇科）的摄食生态
作者：
H. Greene;J. Rodríguez
根据博物馆标本和已发表的记录（n = 51个猎物），Lampropeltis zonata胃内容物吃蜥蜴（37，72.5%），有鳞卵（6，11.8%），哺乳动物（6）和鸟类（2，3.9%）。幼蜥蜴以蜥蜴为食，特别是Sceloporus（多刺蜥蜴）和Eumeces（石龙子），而成年蜥蜴则以有鳞的卵和吸热猎物作为补充。猎物的位置是通过积极觅食，通常吞下头第一，平均33%的蛇质量。L. zonata与同域分布的其他几种中到大型蛇在北美西部的中温带林地有很大的重叠; getula，与异域分布的L. alterna和L.火棘
Abstract Based on stomach contents of museum specimens and published records (n = 51 prey items), Lampropeltis zonata eats lizards (37, 72.5%), squamate eggs (6, 11.8%), mammals (6), and birds (2, 3.9%). Juveniles feed on lizards, especially Sceloporus (spiny lizards) and Eumeces (skinks), whereas adults supplement their diet with squamate eggs and endothermic prey. Prey items are located by active foraging, usually swallowed head-first, and average 33% of snake mass. The diet of L. zonata overlaps substantially with that of several other species of sympatric, medium- to large-sized snakes in mesic western North American woodlands; it is narrower than that of the more widely distributed L. getula, and similar to that of allopatric, more closely related L. alterna and L. pyromelana.