Mouritsen H
Centre for Sound Communication, Institute of Biology, Odense University
Anim Behav. 1998 Oct;56(4):899-907. doi: 10.1006/anbe.1998.0826.
The aim of the present study was to test whether the directional distributions found in ringing recoveries could be explained if night-migrating passerines use only a simple clock-and-compass strategy during autumn migration. I developed a mathematical model that predicts the expected directional distributions as a function of distance covered by birds using a clock-and-compass strategy. The predictions were compared with data from natural migration: all ringing recoveries of pied flycatchers, Ficedula hypoleuca, ringed in Scandinavia and recovered elsewhere in Europe and North Africa within the same autumn. The predictions of the model correlated strongly with the distribution of ringing recoveries. This suggests that at least young pied flycatchers, and perhaps night-migrating passerines in general, use a simple clock-and-compass strategy to reach their wintering area. If so, all the prerequisites (a compass and an internal clock) that they need to orient during migration seem to be known at present, at least at the behavioural level, and navigational abilities or any elusive map-sense are not needed for migration. Copyright 1998 The Association for the Study of Animal Behaviour.
本研究的目的是检验，如果夜间迁徙的雀形目鸟类在秋季迁徙期间仅使用简单的时钟和罗盘策略，那么在环志回收中发现的方向分布是否可以得到解释。我开发了一个数学模型，该模型预测了使用时钟和罗盘策略的鸟类所覆盖距离的函数的预期方向分布。将这些预测与自然迁徙的数据进行了比较：在斯堪的纳维亚半岛环志并于同一秋季在欧洲其他地方和北非回收的所有斑姬鹟（Ficedula hypoleuca）的环志回收情况。模型的预测与环志回收的分布密切相关。这表明，至少年轻的斑姬鹟，也许一般的夜间迁徙雀形目鸟类，都使用简单的时钟和罗盘策略到达它们的越冬地。如果是这样，它们在迁徙过程中定向所需的所有先决条件（一个罗盘和一个内部时钟）目前似乎都已为人所知，至少在行为层面上是这样，而且迁徙不需要导航能力或任何难以捉摸的地图感。版权所有1998动物行为研究协会。
