Caste-biased acceptance of non-nestmates in a polygynous ponerine ant
Caste-biased acceptance of non-nestmates in a polygynous ponerine ant
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DOI：
10.1016/j.anbehav.2006.04.015
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发表时间：
2007-04
期刊：
影响因子：
2.5
通讯作者：
T. Kikuchi;K. Tsuji;H. Ohnishi;J. Breton
中科院分区：
文献类型：
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作者：
T. Kikuchi;K. Tsuji;H. Ohnishi;J. Breton
我们调查了种姓的影响，巢歧视的ponceptiant Pachycondyla luteipes，工人缺乏功能性卵巢，是完全不育。无论是标记和夺回现场实验和实验室的介绍实验表明巢和非巢巢工人之间的混合。在实验室实验中，同种工人，巢和非巢，几乎总是被接受。工蜂的内部敌意较弱，在所研究的地理尺度（<130 m）上与巢间距离无关。然而，工人的反应不同的巢和非巢的工人，梳理非巢更频繁地比巢。相比之下，非巢伴侣的蚁后通常会受到常驻工蚁的暴力攻击，结果只有30%的蚁后被接纳。巢内的蚁后总是被接受，没有侵略性。我们的研究结果表明，P.luteipes工人有能力识别巢友，但不积极的非巢友是不育工人。这种种姓偏见的接受已预测亲属选择有关的避免种内社会寄生和调节女王数量。
We investigated the influence of caste on nestmate discrimination in the ponerine ant Pachycondyla luteipes, where workers lack functional ovaries and are totally sterile. Both a mark-and-recapture field experiment and an introduction experiment in the laboratory revealed intermixing of both nestmate and non-nestmate workers between nests. In the laboratory experiment, conspecific workers, both nestmate and non-nestmates, were almost always accepted. Workers' internest hostility was weak and did not correlate with the distance between nests over the geographical scale studied (<130m). However, workers responded differentially to nestmate and non-nestmate workers, grooming non-nestmates more frequently than nestmates. In contrast, non-nestmate queens were usually violently attacked by resident workers, and as a result only 30% were accepted. Nestmate queens were always accepted with no aggression. Our results indicate that P. luteipes workers have the ability to recognize nestmates but are not aggressive when the non-nestmates are sterile workers. Such caste-biased acceptance has been predicted by kin selection in relation to the avoidance of intraspecific social parasitism and regulation of queen numbers.