Water bathing alters the speed-accuracy trade-off of escape flights in European starlings
Water bathing alters the speed-accuracy trade-off of escape flights in European starlings
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DOI：
10.1016/j.anbehav.2009.07.022
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发表时间：
2009-10-01
期刊：
影响因子：
2.5
通讯作者：
Bateson, Melissa
中科院分区：
文献类型：
--
作者：
Brilot, Ben O.;Asher, Lucy;Bateson, Melissa
大多数种类的鸟类定期在水中洗澡，但这种行为的功能尚不清楚。我们测试的假设，水浴是重要的羽毛维护，因此应该提高飞行性能。我们操纵欧洲椋鸟，Sturnus vulgaris，在2 × 2设计中获得洗澡水：鸟被安置在有或没有水浴的鸟舍中至少3天（长期访问），然后被捕获并放置在有或没有水浴的单独笼子中另外24小时（短期访问）。随后，我们评估了通过垂直字符串的障碍课程逃生飞行的速度和准确性。短期内洗澡的鸟比短期内没有洗澡水的鸟飞得更慢，击中的弦更少，而长期获得洗澡水对飞行性能没有显着影响。因此，最近进入洗澡水通过改变逃逸飞行速度和准确性之间的权衡来改变飞行性能。我们假设，缺乏洗澡水的供应可能会增加焦虑，因为他们认为脆弱的捕食增加圈养椋鸟。因此，这项研究可能提供了一个重要的功能之间的联系，在圈养和福利考虑的自然行为的表达。(C)2009年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Birds of most species regularly bathe in water, but the function of this behaviour is unknown. We tested the hypothesis that water bathing is important in feather maintenance, and hence should enhance flight performance. We manipulated European starlings', Sturnus vulgaris, access to bathing water in a 2 x 2 design: birds were housed in aviaries either with or without water baths for a minimum of 3 days (long-term access) before being caught and placed in individual cages either with or without water baths for a further 24 h ( short-term access). We subsequently assessed the speed and accuracy of escape flights through an obstacle course of vertical strings. Birds that had bathed in the short-term flew more slowly and hit fewer strings than birds that were deprived of bathing water in the short term, whereas long-term access to bathing water had no significant effect on flight performance. Thus recent access to bathing water alters flight performance by altering the trade-off between escape flight speed and accuracy. We hypothesize that lack of bathing water provision could increase anxiety in captive starlings because of an increase in their perceived vulnerability to predation. This study therefore potentially provides an important functional link between the expression of natural behaviours in captivity and welfare considerations. (C) 2009 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.