Interspecific Repellent Effect of Hydroalcoholic Solution of Nest Refuse from Two Leaf-cutter Ant Species

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY
Leandro Sousa-Souto, Bianca Giuliano Ambrogi, Rafaella Santana Santos
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Abstract

Leaf-cutting ants manage their waste continuously to avoid risks of colony contamination. The presence of residues or their odor near foraging areas is enough for ants to stop attacking plant tissues. However, to date, no study has demonstrated an interspecific effect of nest waste on the deterrence of leaf-cutting ants. Here, we tested whether a hydroalcoholic extract of nest refuse (NR) of the leaf-cutting ants Acromyrmex balzani Emery, 1890 and Atta opaciceps Borgmeier (Hymenoptera: Formicidae, Attini) causes an interspecific deterrent effect. Field colonies of Ac. balzani (n = 30) and A. opaciceps (n = 36) were used. For each colony, we offered baits made with plastic straws covered by citrus pulp and sprayed with a hydroalcoholic solution of 20% (vol/vol) alcohol/water (Control) or an extract of 20% (vol/vol) of NR from Ac. balzani and/or A. opaciceps. Over 20-30 minutes we recorded the amount of baits removed and data were compared through survival analysis and Linear Mixed Effect (LME) model. Ants avoided collecting baits sprayed with NR resulting in less than 20% of these baits being carried to the nest versus 80% of control baits. The deterrence was both intra and interspecific, considering that the response was similar for baits from both species. Such results reinforce the premise that the presence of nest refuse alters the foraging behavior of ants and paves the way for new studies that can verify its effectiveness in reducing foliar consumption on a larger spatial scale.
两种切叶蚁巢垃圾水酒精溶液的种间驱避效果
切叶蚁不断处理它们的废物,以避免群体污染的风险。蚂蚁在觅食区域附近的残留物或气味足以阻止它们攻击植物组织。然而,到目前为止,还没有研究表明巢废物对切叶蚁的威慑有种间效应。本研究测试了切叶蚁(Acromyrmex balzani Emery, 1890)和切叶蚁(Atta opaciceps Borgmeier,膜翅目:蚁科,Attini)的巢渣(NR)的水醇提取物是否具有种间威慑作用。采用野外菌落balzani (n = 30)和A. opaciceps (n = 36)。对于每个菌落,我们提供了用覆盖柑橘果肉的塑料吸管制成的诱饵,并喷洒了20% (vol/vol)酒精/水的水酒精溶液(对照)或20% (vol/vol)来自Ac. balzani和/或a . opaciceps的NR提取物。在20-30分钟内,我们记录了去除诱饵的数量,并通过生存分析和线性混合效应(LME)模型对数据进行比较。蚂蚁避免收集喷洒NR的诱饵,结果只有不到20%的诱饵被带到巢中,而对照诱饵的比例为80%。考虑到对两种鱼饵的反应相似,威慑作用既存在于种内,也存在于种间。这些结果强化了巢垃圾的存在改变蚂蚁觅食行为的前提,并为新的研究铺平了道路,这些研究可以在更大的空间尺度上验证其在减少叶片消耗方面的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Sociobiology
Sociobiology 生物-昆虫学
CiteScore
1.60
自引率
11.10%
发文量
28
审稿时长
3 months
期刊介绍: SOCIOBIOLOGY publishes high quality articles that significantly contribute to the knowledge of Entomology, with emphasis on social insects. Articles previously submitted to other journals are not accepted. SOCIOBIOLOGY publishes original research papers and invited review articles on all aspects related to the biology, evolution and systematics of social and pre-social insects (Ants, Termites, Bees and Wasps). The journal is currently expanding its scope to incorporate the publication of articles dealing with other arthropods that exhibit sociality. Articles may cover a range of subjects such as ecology, ethology, morphology, population genetics, physiology, toxicology, reproduction, sociobiology, caste differentiation as well as economic impact and pest management.
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