长途迁徙海鸟的航线灵活性与逆风最小化有关。

IF 3.5 1区 生物学 Q1 BIOLOGY
Nathalie Kürten, Joe Wynn, Birgen Haest, Heiko Schmaljohann, Oscar Vedder, Jacob Gonzalez-Solis, Sandra Bouwhuis
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引用次数: 0

摘要

季节性迁徙已经在不同的分类群中进化,并包含了许多特征,其中许多特征在物种之间、种群之间和种群内部,甚至在个体内部都有所不同。移民的一个特征在个体内部表现得特别多变,那就是到达目的地的路线,即使目的地本身在这个层面上是不变的。为了探究其中的原因,我们分析了描述84种普通燕鸥(Sterna hirundo)的192次繁殖后迁徙旅程的地理定位轨迹,以及其中75种普通燕鸥的149次繁殖前迁徙旅程。我们发现,不论季节或性别,不同年份的迁徙路线在个体空间上几乎没有一致性。相反,在同一时间窗口内离开的个体采取类似的迁徙路线,这在繁殖前的迁徙中,当鸟类主要遇到逆风时,逆风暴露最小。因此,我们认为这种长途迁徙海鸟的个体路线可以根据环境变化灵活调整,可能具有适应性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Route flexibility is associated with headwind minimization in a long-distance migratory seabird.

Seasonal migration has evolved across taxa and encompasses a multitude of features, many of which vary between species, between and within populations, and even within individuals. One feature of migration that appears especially variable within individuals is the route taken to reach a destination, even when the destination itself is not variable at this level. To investigate why, we analysed the geolocator tracks describing 192 post-breeding migratory journeys of 84 common terns (Sterna hirundo), as well as 149 pre-breeding migratory journeys of 75 of these birds. We found little within-individual spatial consistency in migration routes across years, irrespective of season or sex. Instead, individuals departing during the same time window took similar migration routes, which, during pre-breeding migration, when birds predominantly encountered headwinds, were associated with minimized headwind exposure. We therefore suggest that the individual routes of this long-distance migratory seabird can be flexibly adjusted to environmental variation, which is likely to be adaptive.

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来源期刊
CiteScore
7.90
自引率
4.30%
发文量
502
审稿时长
1 months
期刊介绍: Proceedings B is the Royal Society’s flagship biological research journal, accepting original articles and reviews of outstanding scientific importance and broad general interest. The main criteria for acceptance are that a study is novel, and has general significance to biologists. Articles published cover a wide range of areas within the biological sciences, many have relevance to organisms and the environments in which they live. The scope includes, but is not limited to, ecology, evolution, behavior, health and disease epidemiology, neuroscience and cognition, behavioral genetics, development, biomechanics, paleontology, comparative biology, molecular ecology and evolution, and global change biology.
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