Body-size dependent difference in death-feigning behavior of adult Callosobruchus chinensis
Body-size dependent difference in death-feigning behavior of adult Callosobruchus chinensis
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DOI：
10.1007/s10905-005-5612-z
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发表时间：
2005-07-01
影响因子：
1
通讯作者：
Miyatake, T
中科院分区：
文献类型：
--
作者：
Hozumi, N;Miyatake, T
研究了赤豆象成虫的假死行为（一种抗捕食者防御）的大小差异。在两个重复实验中，假死持续时间与成年体重呈正相关。此外，在饥饿的条件下，甲虫饲养在高（=较轻的甲虫）幼虫密度下表现出显着较短的寿命和较短的时间比低（=较重的甲虫）幼虫密度下饲养的假死。本文从小甲虫和大甲虫生存策略的差异出发，讨论了假死持续时间的大小差异。因为小甲虫的寿命没有那么长，它们繁殖的时间更少，所以这段时间的任何损失都可能是它们健康损失的更大比例。这是第一次报告的身体大小依赖性差异的假死行为的成年全代谢甲虫。
Size-dependent differences in death-feigning behavior, an anti-predator defense, was examined in the adult adzuki bean beetle, Callosobruchus chinensis (Coleoptera: Bruchidae). A positive correlation was observed between the duration of death-feigning and adult body weight in two replicated experiments. Moreover, under starved condition, beetles reared under high (= lighter beetles) larval density showed significantly shorter longevity and a shorter duration of death-feigning than those reared under low (= heavier beetles) larval density. The body-size-dependent difference in the duration of death-feigning is discussed from the viewpoint of the difference in survival strategies between small and large beetles. Because small beetles don't live as long, they have less time in which to reproduce and so any loss of that short time might be a greater proportion of their fitness lost. This is the first report on the body-size-dependent difference in death-feigning behavior in the adult holometabolic beetle.