Testing optimal defence theory in a social insect: Increased risk is correlated with increased venom investment

IF 2 3区 农林科学 Q2 ENTOMOLOGY Ecological Entomology Pub Date : 2023-11-02 DOI:10.1111/een.13295
Phoebe A. Koenig, Corrie S. Moreau
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在社会性昆虫中检验最佳防御理论:风险增加与毒液投入增加相关
在生物的整个生命周期中,对防御的投资可能并不总是有益的。风险,以及防御的潜在回报,可能随着年龄和行为而变化,但对于群体生物来说,它也可能随着群体规模和繁殖阶段而变化。橡子蚁Temnothorax longispinosus使用毒液来抵御群居寄生蚂蚁,这些蚂蚁会袭击它们的巢穴偷走后代。本研究探讨了长棘棘绦虫根据攻击风险调整毒液分配的观点。我们测试了这样的预测,即当袭击最有可能发生时,以及在巢繁殖周期中每次袭击潜在适应性损失最高的部分,T. longispinosus蚂蚁应该产生更多的毒液。我们还询问了蜂群中具有不同潜在风险水平的护士和觅食者之间的毒液量是否不同,以及这种差异是否随着蜂群规模的增加而增加。我们发现,工蜂在夏天,在袭击发生之前和期间,分泌的毒液比在蜂巢中不再有蛹的秋天更多。从事护理行为的工蜂随着巢中蛹与工蜂比例的增加而产生更多的毒液,这表明随着需要防御的蛹的相对数量的增加,护理工蜂投入更多的毒液。此外,蚁后和觅食蚁的毒液量差异随着蚁群的大小而增大。这些结果为一种假设提供了观察支持,即个体在群体发展过程中对毒液的投资与社会寄生的风险有关。
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来源期刊
Ecological Entomology
Ecological Entomology 生物-昆虫学
CiteScore
4.90
自引率
4.50%
发文量
94
审稿时长
3 months
期刊介绍: Ecological Entomology publishes top-quality original research on the ecology of insects and related invertebrate taxa. Our aim is to publish papers that will be of considerable interest to the wide community of ecologists who are motivated by ecological or evolutionary theory. The suitability of a manuscript will usually be assessed within 5 days. We publish full-length Original Articles as well as Reviews, Short Communications, Methods and Natural History papers. In Original Articles, we greatly prefer papers that test specific hypotheses and which have a high degree of novelty. All categories aim for innovative contributions that advance the subject of ecological entomology.
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