Releases of surgically deafened homing pigeons indicate that aural cues play a significant role in their navigational system
Releases of surgically deafened homing pigeons indicate that aural cues play a significant role in their navigational system
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DOI：
10.1007/s00359-015-1026-3
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发表时间：
2015-10-01
影响因子：
2.1
通讯作者：
Manley, Geoffrey A.
中科院分区：
文献类型：
--
作者：
Hagstrum, Jonathan T.;Manley, Geoffrey A.
1973年至1975年间，康奈尔大学的威廉·t·基顿和他的同事在17天内从纽约州北部和宾夕法尼亚州西部的六个地点释放了经验丰富的信鸽，这些信鸽的耳蜗和lagenae被切除了。先前未发表的数据表明，被操纵的鸽子的起飞方向与被操纵的对照组（共314只）有显著差异，这表明听觉线索在鸽子的导航系统中起着重要作用。此外，利用释放日的气象数据对次声波的传播建模支持了控制鸟使用次声波信号来确定其返回方向的可能性。因此，局部的声音“阴影”区可能导致控制鸟类在通常定向良好的放生地点最初迷失方向。实验中的鸟类似乎采用了另一种“路线逆转”策略，可能是利用它们基于眼睛的磁罗盘回家。根据基顿在另一个长期迷失方向的地点的研究结果，我们认为，经验丰富的鸽子主要依靠次声线索来确定最初的方向，手术切除了它们的听觉，迫使它们转向第二导航策略。
Experienced homing pigeons with extirpated cochleae and lagenae were released from six sites in upstate New York and western Pennsylvania on 17 days between 1973 and 1975 by William T. Keeton and his co-workers at Cornell University. The previously unpublished data indicate that departure directions of the operated birds were significantly different from those of sham-operated control birds (314 total), indicating that aural cues play an important part in the pigeon's navigational system. Moreover, propagation modeling of infrasonic waves using meteorological data for the release days supports the possibility that control birds used infrasonic signals to determine their homeward direction. Local acoustic 'shadow' zones, therefore, could have caused initial disorientation of control birds at release sites where they were normally well oriented. Experimental birds plausibly employed an alternate 'route-reversal' strategy to return home perhaps using their ocular-based magnetic compass. We suggest, based on Keeton's results from another site of long-term disorientation, that experienced pigeons depend predominantly on infrasonic cues for initial orientation, and that surgical removal of their aural sense compelled them to switch to a secondary navigational strategy.