Ants work harder during decision making in small groups
Ants work harder during decision making in small groups
复制标题
蚂蚁在小组决策时更加努力
DOI：
10.1098/rsif.2014.0641
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发表时间：
2014
影响因子：
3.9
通讯作者：
Adam L Cronin & Martin C Stumpe
中科院分区：
文献类型：
--
作者：
Kanako O. Koyanagi;Kanako O. Koyanagi;Kanako O. Koyanagi;小柳香奈子;小柳香奈子;小柳香奈子;Adam L Cronin;Adam L Cronin;Adam L Cronin & Martin C Stumpe
个人从社会中获得许多好处，其中之一是提高决策的准确性，即所谓的“群体智慧”效应。这种优势的产生是因为更大的群体可以从更多的个人那里汇集信息。目前，有限的经验数据表明，在人类和非人类动物的共识决策过程中，较大的群体表现优于较小的群体。不准确的决策可能会导致巨大的成本，因此，我们可能会期望小团体中的个人使用机制来弥补数量的不足。如果个人比大群体中的人更了解情况，和/或通过增加参与集体决策的群体相对于大群体的比例，小群体可能能够保持决策的准确性。在这项研究中，我们使用交互式计算机视觉软件，调查个人的贡献，共识决策过程中的房子狩猎在不同大小的群体的antMyrmecina nipponica。我们发现，在小殖民地的个人投资更大的努力，在共识决策过程中比那些在大殖民地，因此应该更好地了解。这可能有助于改善群体规模的局限性，但可能使较小的群体更容易受到额外压力的影响。
Individuals derive many benefits from being social, one of which is improved accuracy of decision-making, the so-called ‘wisdom of the crowds’ effect. This advantage arises because larger groups can pool information from more individuals. At present, limited empirical data indicate that larger groups outperform smaller ones during consensus decision-making in human and non-human animals. Inaccurate decisions can lead to significant costs, and we might therefore expect individuals in small groups to employ mechanisms to compensate for the lack of numbers. Small groups may be able to maintain decision accuracy if individuals are better informed than those in larger groups and/or by increasing the proportion of the group involved in collective decision-making relative to larger groups. In this study, we use interactive computer vision software to investigate individual contributions to consensus decision-making during house-hunting in different sized groups of the antMyrmecina nipponica. We show that individuals in small colonies invest greater effort in the consensus decision process than those in large colonies and should be better informed as a result. This may act to ameliorate the limitations of group size, but could leave smaller groups more susceptible to additional stresses.