Individual differences in sampling behaviour predict social information use in zebra finches

被引:0
|
作者
Patricia Rosa
Viviane Nguyen
Frédérique Dubois
机构
[1] Université de Montréal,Département de Sciences Biologiques
来源
Behavioral Ecology and Sociobiology | 2012年 / 66卷
关键词
Social information use; Sampling behaviour; Inter-individual differences; Social learning strategy; Uncertainty;
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学科分类号
摘要
When animals have to decide where to forage, what to eat or with whom to mate, they can base their decisions on either socially or personally acquired information. In accordance with theoretical predictions, there is experimental evidence that animals adjust the weight they give to both sources of information depending on circumstances. Notably, several studies have demonstrated that individuals rely more on social information when personal information is difficult to acquire or unreliable, because these conditions leave them uncertain as how to behave. Yet, even when individuals are exposed to the same conditions, they generally differ widely in the value they attribute to social and personal information. These differences suggest that the tendency to rely on social information would also depend on intrinsic characteristics that affect, for instance, individual efficiency in collecting personal information. To address this issue, we conducted laboratory experiments using female zebra finches (Taeniopygia guttata) and we tested them under three consecutive conditions. First, we evaluated their reliance on social information in a mating context and in a foraging context. Then, we measured their efficiency in acquiring personal information by recording their sampling behaviour when searching for hidden food. We found that females that sampled their environment less actively consistently relied on social information to a greater extent compared with those that invested more in sampling. Contrary to what is generally assumed, then, our study demonstrates that social information use is not entirely flexible and context dependent.
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页码:1259 / 1265
页数:6
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