Thieves in the Night: Kleptoparasitism by Fireflies in the Genus Photuris Dejean (Coleoptera: Lampyridae)
Thieves in the Night: Kleptoparasitism by Fireflies in the Genus Photuris Dejean (Coleoptera: Lampyridae)
复制标题
夜里的小偷：萤火虫属萤火虫的盗贼寄生（鞘翅目：萤科）
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Lewis
中科院分区：
文献类型：
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作者：
L. Faust;R. De Cock;S. Lewis
摘要
窃取食物是鸟类常见的觅食策略，许多节肢动物会偷走被编织球体蜘蛛困住的猎物。北美的一些萤火虫(鞘翅目：灯甲科)是专门的捕食者，它们积极地从其他萤火虫身上寻找和隔离化学防御(荧光素)。在这里，我们首次描述了雌性石楠萤火虫的偷盗寄生行为，我们观察到它从蜘蛛网中偷走了石楠属被包裹的萤火虫。因此，雌鸟似乎有三种不同的觅食策略：霍金、攻击性闪光模仿和盗寄生症。我们讨论了一些因素，可能有利于这种专业捕食者的盗寄生症的进化。
ABSTRACT
Food theft is a common foraging strategy in birds, and many arthropods steal prey trapped by orb-weaving spiders. Some fireflies (Coleoptera: Lampyridae) within the North American genus Photuris Dejean (Coleoptera: Lampyridae) are specialist predators which actively hunt for and sequester chemical defenses (lucibufagins) from other fireflies. Here we present the first description of kleptoparasitic behavior by female Photuris fireflies, which we have observed stealing wrapped fireflies of the genus Photinus Laporte from spider webs. Photuris females thus appear capable of three distinct foraging strategies: hawking, aggressive flash mimicry, and kleptoparasitism. We discuss some factors that might have favored the evolution of kleptoparasitism by this specialist predator.