Social and ecological contexts of trophallaxis in facultatively social sweat bees, Megalopta genalis and M. ecuadoria (Hymenoptera, Halictidae)
Social and ecological contexts of trophallaxis in facultatively social sweat bees, Megalopta genalis and M. ecuadoria (Hymenoptera, Halictidae)
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DOI：
10.1007/s00040-005-0861-6
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发表时间：
2006-01-01
期刊：
影响因子：
1.3
通讯作者：
Gonzalez, V. H.
中科院分区：
文献类型：
--
作者：
Wcislo, W. T.;Gonzalez, V. H.
在新大陆汗蜂(Halictinae)中，首次记录了成虫之间的液体食物交换(营养液交换)。Megalopta genaris和M.ecuadoria是兼性社会性的，在社会群体中，觅食者定期给最年长的常驻雌性蜜蜂食物，这在社会互动中占主导地位。反过来，最年长的居民有时会重新分配这些食物，并与年轻的觅食者分享。食物有时是免费提供的，但通常情况下，占主导地位的蜜蜂表现出不断升级的攻击性行为，直到它被喂食，然后她立即停止攻击性。在有大量供应幼虫的物种中出现滋养松弛现象，为研究社会行为的仪式化提供了机会。在实验条件下，斑潜蝇还将雄性和雌性的存活率提高了近50%，这表明这种行为在生态环境中也很重要。
Exchange of liquid food among adults (trophallaxis) is documented for the first time in New World sweat bees (Halictinae). Megalopta genalis and M. ecuadoria are facultatively social, and in social groups foragers regularly give food to the oldest resident female bee, which dominates social interactions. In turn, the oldest resident sometimes re-distributes this food, and shares it with younger foragers. Food is sometimes offered freely, but often the dominant bee exhibits escalating aggressive behavior until she is fed, whereupon she immediately ceases to be aggressive. The occurrence of trophallaxis in a species with mass-provisioned larvae provides an opportunity to examine the ritualization of social behavior. Trophallaxis also increases survivorship of males and females by almost 50 % under experimental conditions, suggesting the behavior is also important in ecological contexts.