Individual personalities shape task differentiation in a social spider (Publication with Expression of Concern. See vol. 287, 2020) (Retracted article. See vol. 288, 2021)
Individual personalities shape task differentiation in a social spider (Publication with Expression of Concern. See vol. 287, 2020) (Retracted article. See vol. 288, 2021)
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DOI：
10.1098/rspb.2013.1407
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发表时间：
2013-09-22
影响因子：
4.7
通讯作者：
Bilde, Trine
中科院分区：
文献类型：
--
作者：
Grinsted, Lena;Pruitt, Jonathan N.;Bilde, Trine
解读社会结构形成的机制是深入理解社会性进化过程的关键。群体内的个体专业化可以提高群体效率，从而提高生产力。在这里，我们测试的假设，即组内的个人性格（即大胆和侵略性）的变化可以塑造任务分化。社会蜘蛛Stegodyphus sarasinorum（Eresidae）显示任务分化（显着的不平等参与）在模拟猎物捕获事件在10天的行为测定在该领域，独立的发展阶段（成熟水平），消除年龄polyethism。参与捕获猎物的大胆程度呈正相关，但不与侵略。身体大小呈正相关，是第一个蜘蛛出现从殖民地作为对猎物捕获的反应，但不是第一次攻击，从实验殖民地的扩散距离与攻击，但不是新兴的。这表明，不同的行为反应猎物捕获结果从一组复杂的个人特征。大胆和侵略性呈正相关，但都没有与身体大小，发育阶段或扩散距离。因此，我们表明，个性的形状任务分化的社会蜘蛛独立的年龄和成熟。我们的研究结果表明，在孤独的，标准化的实验室环境中获得的个性措施可以在该领域的社会背景下的行为的可靠预测。鉴于生物体的财富，表现出一致的个体行为差异，动物个性可以在社会组织中发挥作用，在动物的多样性。
Deciphering the mechanisms involved in shaping social structure is key to a deeper understanding of the evolutionary processes leading to sociality. Individual specialization within groups can increase colony efficiency and consequently productivity. Here, we test the hypothesis that within-group variation in individual personalities (i.e. boldness and aggression) can shape task differentiation. The social spider Stegodyphus sarasinorum (Eresidae) showed task differentiation (significant unequal participation) in simulated prey capture events across 10-day behavioural assays in the field, independent of developmental stage (level of maturation), eliminating age polyethism. Participation in prey capture was positively associated with level of boldness but not with aggression. Body size positively correlated with being the first spider to emerge from the colony as a response to prey capture but not with being the first to attack, and dispersal distance from experimental colonies correlated with attacking but not with emerging. This suggests that different behavioural responses to prey capture result from a complex set of individual characteristics. Boldness and aggression correlated positively, but neither was associated with body size, developmental stage or dispersal distance. Hence, we show that personalities shape task differentiation in a social spider independent of age and maturation. Our results suggest that personality measures obtained in solitary, standardized laboratory settings can be reliable predictors of behaviour in a social context in the field. Given the wealth of organisms that show consistent individual behavioural differences, animal personality could play a role in social organization in a diversity of animals.