Effects of Starvation on Death-Feigning in Adults of Cylas formicarius (Coleoptera: Brentidae)
Effects of Starvation on Death-Feigning in Adults of Cylas formicarius (Coleoptera: Brentidae)
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饥饿对Cylas formicarius（鞘翅目：Brentidae）成虫假死的影响
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
T. Miyatake
中科院分区：
文献类型：
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作者：
T. Miyatake
摘要研究了饥饿对甘薯象成虫假死行为的影响。一个显着较低比例的假死成年人观察饥饿象鼻虫与unstarved控制在两种性别。但雌性比雄性需要更长的饥饿时间才能降低假死的比例。雄性和雌性之间的这种差异是由性别对饥饿的不同耐受性造成的，因为雄性比雌性在没有食物的情况下死得早。饥饿的雄象鼻虫从假死中恢复的时间较短。可能存在C.与逃避捕食者相比，蚁巢虫优先考虑的是保证食物的消耗。
Abstract Effects of starvation on death-feigning behavior, or thanatosis, were observed in adults of the sweetpotato weevil, Cylas formicarius (F.). A significantly lower proportion of death-feigned adults was observed in starved weevils compared with unstarved controls in both sexes. However, females needed a longer starvation period than males to show the decreased proportion of death-feigning. This contrast between males and females was caused by a differential tolerance of the sexes for starvation, because males died earlier than females without food. Starved male weevils had a shorter duration to recover from the death-feigning. There may be situations where C. formicarius gives priority to assuring food consumption compared with escaping from predators.