When to use social information: the advantage of large group size in individual decision making.
When to use social information: the advantage of large group size in individual decision making.
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DOI：
10.1098/rsbl.2007.0017
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发表时间：
2007-04-22
期刊：
影响因子：
3.3
通讯作者：
Cowlishaw G
中科院分区：
文献类型：
--
作者：
King AJ;Cowlishaw G
正确的决策对于动物最大限度地提高觅食成功率和最大限度地降低捕食风险至关重要。群居动物可以通过使用自己的个人信息或与其他群体成员共享信息（即社会信息）来做出此类决定。在这里，我们研究个人如何最好地平衡个人和社交信息的使用。我们使用一种简单的建模方法，当涉及更多个人并且他们的个人信息更准确时，基于社会信息的个人决策更有可能是正确的。我们的模型预测，当群体成员的个人信息较差时（准确率低于一半），个人应该避免共享信息。相反，当个人信息可靠（至少一半的情况下是准确的）时，个人应该减少使用个人信息，而更多地使用社交信息，并且这种效应在更大的群体中会变得更强。这种模式的一个含义是，社会信息使大群体中消息灵通的成员能够与小群体中消息灵通的成员以相同的概率做出正确的决定。因此，较大群体中的动物可能能够最大限度地减少收集个人信息的成本，而不会损害它们做出正确决定的能力。
Correct decision making is crucial for animals to maximize foraging success and minimize predation risk. Group-living animals can make such decisions by using their own personal information or by pooling information with other group members (i.e. social information). Here, we investigate how individuals might best balance their use of personal and social information. We use a simple modelling approach in which individual decisions based upon social information are more likely to be correct when more individuals are involved and their personal information is more accurate. Our model predicts that when the personal information of group members is poor (accurate less than half the time), individuals should avoid pooling information. In contrast, when personal information is reliable (accurate at least half the time), individuals should use personal information less often and social information more often, and this effect should grow stronger in larger groups. One implication of this pattern is that social information allows less well-informed members of large groups to reach a correct decision with the same probability as more well-informed members of small groups. Thus, animals in larger groups may be able to minimize the costs of collecting personal information without impairing their ability to make correct decisions.
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影响因子：
2.9
作者：
Beauchamp, G;Ruxton, GD
通讯作者：
Ruxton, GD
影响因子：
2.4
作者：
Grocott, DFH
通讯作者：
Grocott, DFH
DOI：
10.1098/rspb.2006.3647
发表时间：
2006-11-07
影响因子：
4.7
作者：
Kerth, Gerald;Ebert, Cornelia;Schmidtke, Christine
通讯作者：
Schmidtke, Christine
影响因子：
16.8
作者：
Simons, AM
通讯作者：
Simons, AM
影响因子：
3.4
作者：
VALONE, TJ
通讯作者：
VALONE, TJ