Collective responses to heterospecifics emerge from individual differences in aggression.
Collective responses to heterospecifics emerge from individual differences in aggression.
复制标题
对异种特异性的集体反应源于个体攻击性的差异。
DOI：
10.1093/beheco/arz017
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Pinter-Wollman,Noa
中科院分区：
文献类型：
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作者：
Neumann,KevinM;Pinter-Wollman,Noa
群体成员之间的个体行为差异会影响集体结果。个人和群体在竞争中胜过他人的能力可以决定获得资源的机会。入侵的阿根廷蚂蚁Linepithema humile占据了资源并取代了本地物种。确定L组如何访问资源。humile受其行为组成的影响，我们首先确定L.谦逊的员工在攻击性行为上总是各不相同。然后，我们问，如果在一个组内的侵略的变化影响组的能力，以获得资源的本地物种，Tapinoma无柄的线索的存在。我们发现L.低分组影响组对T线索的集体反应。群体行为主要是群体成员的行为相加而不是协同的结果。包含50%高攻击性和50%低攻击性个体的组的行为与所有高攻击性个体的组和所有低攻击性个体的组的行为的平均值相似。揭示允许社会入侵物种支配其入侵的生态群落的机制可以为减轻入侵提供信息。
Variation in individual behavior among group members impacts collective outcomes. The ability of both individuals and groups to outcompete others can determine access to resources. The invasive Argentine ant,Linepithema humile, dominates resources and displaces native species. To determine how access to resources by groups ofL. humileis impacted by their behavioral composition, we first determined thatL. humileworkers consistently vary in aggressive behavior. We then asked if variation in aggression within a group influences the group’s ability to access a resource in the presence of cues of a native species,Tapinoma sessile. We found that the behavioral composition ofL. humilegroups impacted the groups’ collective response to cues ofT. sessile.Group behavior was the result of mostly additive, rather than synergistic, combinations of the behaviors of the group members. The behavior of groups that contained 50% highly aggressive and 50% low-aggression individuals was similar to the average of the behaviors of groups of all highly aggressive and groups of all low-aggression individuals. Uncovering the mechanisms that allow social invasive species to dominate the ecological communities they invade can inform the mitigation of invasion.