Vocal coordination of group movement by green woodhoopoes (Phoeniculus purpureus)
Vocal coordination of group movement by green woodhoopoes (Phoeniculus purpureus)
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DOI：
10.1046/j.1439-0310.2003.00943.x
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发表时间：
2004-01-01
期刊：
影响因子：
1.7
通讯作者：
Radford, AN
中科院分区：
文献类型：
--
作者：
Radford, AN
通信信号被许多物种用来在更大的区域移动时保持群体凝聚力。绿色林戴胜（Phoeniculus purpureus）的群体通常作为一个紧密结合的单位在它们的领地周围移动。占主导地位的个人更有可能比下属发起运动到一个新的觅食网站，但没有性别差异。支配者也比从属者更容易被立即跟踪。发声被证明在动员中发挥了重要作用：在林戴胜栖息的茂密森林中，协调运动的视觉线索可能不太成功。当响应邻近群体的号召时，支配者和从属者同样有可能领导，男性和女性也是如此。在大多数情况下，由于其他群体成员立即跟进，因此在这种情况下，发声不如转移到新的觅食地点时重要。
Communication signals are used by many species to maintain group cohesion when moving over larger areas. Groups of green woodhoopoes (Phoeniculus purpureus) generally move around their territory as a close-knit unit. Dominant individuals were more likely than subordinates to initiate movement to a new foraging site, but there was no intersexual difference. Dominants were also more likely than subordinates to be followed immediately. Vocalizations were shown to play an important role in mobilization: in the thick forests inhabited by woodhoopoes, visual cues to coordinate movement are likely to be less successful. When responding to the rallying call of a neighboring group, dominants and subordinates were equally likely to lead, as were males and females. As other group members followed immediately on most of these occasions, vocalizations were less important in this context than when moving to a new foraging site.