Experimental manipulation of avian social structure reveals segregation is carried over across contexts
Experimental manipulation of avian social structure reveals segregation is carried over across contexts
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DOI：
10.1098/rspb.2014.2350
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发表时间：
2015-03-07
影响因子：
4.7
通讯作者：
Sheldon, Ben C.
中科院分区：
文献类型：
--
作者：
Firth, Josh A.;Sheldon, Ben C.
我们目前对动物社交网络的理解，主要是基于观察或实验，而不是直接操纵个体之间的关联。因此，与这些网络背后的因果过程有关的证据是有限的。通过实施特定的规则来控制个人进入喂食站，我们直接操纵了野生鸟类群落的觅食社会网络，从而展示了外部因素如何塑造社会结构。我们表明，实验施加的限制进行到模式的协会在不受限制的，短暂的食物补丁，以及在筑巢地点在繁殖领土勘探。因此，不同的社会背景可以有因果关系，在一个层面上的限制可能会产生影响，延伸到社会的其他方面。最后，在实验操作停止后，强加的分类消失了，这表明先前受到干扰的野生动物社交网络有可能从外部约束驱动的隔离中恢复过来。
Our current understanding of animal social networks is largely based on observations or experiments that do not directly manipulate associations between individuals. Consequently, evidence relating to the causal processes underlying such networks is limited. By imposing specified rules controlling individual access to feeding stations, we directly manipulated the foraging social network of a wild bird community, thus demonstrating how external factors can shape social structure. We show that experimentally imposed constraints were carried over into patterns of association at unrestricted, ephemeral food patches, as well as at nesting sites during breeding territory prospecting. Hence, different social contexts can be causally linked, and constraints at one level may have consequences that extend into other aspects of sociality. Finally, the imposed assortment was lost following the cessation of the experimental manipulation, indicating the potential for previously perturbed social networks of wild animals to recover from segregation driven by external constraints.