Limited attention: the constraint underlying search image
Limited attention: the constraint underlying search image
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DOI：
10.1093/beheco/12.2.192
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发表时间：
2001-03-01
影响因子：
2.4
通讯作者：
Kamil, AC
中科院分区：
文献类型：
--
作者：
Dukas, R;Kamil, AC
最新的捕食者搜索行为模型将最接近的神经生物学约束与最终的经济考虑结合起来。这些模型是基于两个假设，我们已经严格审查了实验中的人工猎物图像呈现在计算机显示器上的蓝鸟搜索。我们发现，第一，当松鸦不得不切换搜索两种不同的猎物类型，他们没有表现出减少检测率相比，无切换条件，第二，当松鸦划分注意力之间搜索两种猎物类型在同一时间，他们有较低的检测率比当他们集中注意力在一个猎物类型的时间。我们的研究结果表明，有限的注意力强烈影响捕食者的搜索模式和饮食选择，包括无处不在的倾向，形成搜索图像。
Recent models of predator search behavior integrate proximate neurobiological constraints with ultimate economic considerations. These models are based on two assumptions, which we have critically examined in experiments with blue jays searching for artificial prey images presented on a computer monitor. We found, first, that when jays had to switch between searching for two distinct prey types, they showed no reduction in detection rates compared to no-switching conditions, and second, that when jays divided attention between searching for two prey types at the same time, they had lower detection rates than when they focused attention on one prey type at a time. Our results suggest that limited attention strongly affects predator search patterns and diet choice, including the ubiquitous tendency to form search images.