Social buffer or avoidance depends on the similarity of stress between queen ants.

IF 1.6 2区 生物学 Q2 ZOOLOGY
Current Zoology Pub Date : 2023-04-01 DOI:10.1093/cz/zoac031
Iago Sanmartín-Villar
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引用次数: 0

Abstract

The association of unrelated ant queens (pleometrosis) is supposed to improve nest foundation and competitiveness under environmental stress, but its evolutionary maintenance is difficult to explain because only one of the queens survives after nest foundation. My aim was to test the potential effect of queen association as a social buffer, that is, as a mechanism reducing stress and improving fitness due to the benefits of social contact. I analyzed the survival, fecundity, and behavior of isolated and paired Lasius flavus queens exposed and not exposed to stressors (disturbing environmental conditions). I found no difference in survivorship between isolated and paired queens or between stressed and unstressed isolated queens. Groups in which 1 or 2 paired queens were stressed showed higher mortality. Unstressed queens died similarly to their stressed nestmates, suggesting stress transmission. A trend suggested that paired queens produced eggs more quickly, but eggs were produced similarly between isolated and paired queens. Social avoidance was observed in groups with 1 stressed and 1 unstressed queen. However, the groups with 2 stressed queens showed the expected behaviors according to social buffering: lower mobility and more interindividual inspection. My findings suggest the synergistic effect of pleometrosis and stress and the dependence of stress level similarity between nestmates on social buffering or rejection on ant queens.

Abstract Image

Abstract Image

社会缓冲或回避取决于蚁后之间压力的相似性。
无亲缘关系的蚁后(多体性)的结合被认为是为了改善巢的基础和在环境压力下的竞争力,但其进化维持很难解释,因为只有一个蚁后在巢的基础上存活下来。我的目的是测试皇后联想作为社会缓冲的潜在影响,也就是说,由于社会接触的好处,它作为一种减轻压力和提高健康的机制。我分析了孤立的和配对的黄斑黄鼠皇后暴露在压力源和不暴露在压力源(令人不安的环境条件)下的存活率、繁殖力和行为。我发现孤立的和成对的蚁后之间,或者有压力的和没有压力的蚁后之间,存活率没有区别。1对或2对蜂王受到压力的群体死亡率更高。没有压力的蚁后和它们有压力的同伴的死亡相似,这表明压力是传播的。有一种趋势表明,成对的蚁后产卵速度更快,但单独的蚁后和成对的蚁后产卵速度相似。在有1个压力女王和1个非压力女王的组中观察到社交回避。然而,有2个压力皇后的群体表现出了根据社会缓冲的预期行为:低流动性和更多的个体间检查。我的研究结果表明,多体性和压力的协同效应,以及巢友之间的压力水平相似性对社会缓冲或对蚁后的拒绝的依赖。
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
Current Zoology
Current Zoology Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
3.20
自引率
9.10%
发文量
111
审稿时长
6 weeks
期刊介绍: About the Journal Current Zoology (formerly Acta Zoologica Sinica, founded in 1935) is an open access, bimonthly, peer-reviewed international journal of zoology. It publishes review articles and research papers in the fields of ecology, evolution and behaviour. Current Zoology is sponsored by Institute of Zoology, Chinese Academy of Sciences, along with the China Zoological Society.
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