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首页> 外文期刊>IBIS >Comparing areas of suitable habitats along travelled and possible shortest routes in migration of White-naped Cranes Grus vipio in East Asia
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Comparing areas of suitable habitats along travelled and possible shortest routes in migration of White-naped Cranes Grus vipio in East Asia

机译：比较东亚白枕鹤（Grus vipio）迁徙过程中可能走过的路线和可能的最短路线的适宜栖息地面积

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摘要

Many migratory species take detours when migrating from their breeding to wintering grounds rather than following the shortest route available. To test whether the distribution of potentially suitable habitats might be a factor causing the use of less direct detours during migration, we analysed the migratory routes of five White-naped Cranes Grus vipio satellite-tracked from central-east Russia, and compared the total area of wetlands and grasslands along the migratory routes travelled by the Cranes with that along the shortest possible routes to the Cranes' wintering grounds. All five Cranes made an easterly detour, and the distance ratio of the routes used by Cranes to the shortest possible route was 1.13 +/- 0.03 sd. Based on National Oceanic and Atmospheric Administration satellite images, we demonstrate that the area of wetlands and grasslands along the migration routes travelled by Cranes was greater than along the shortest possible routes.
机译：许多迁徙物种在从繁殖场迁移到越冬地时会绕道而行，而不是遵循现有的最短路线。为了测试潜在合适栖息地的分布是否可能是导致在迁移过程中使用较少直接弯路的因素，我们分析了从俄罗斯中东部卫星追踪的五只白枕鹤Grus vipio的迁徙路线，并比较了总面积鹤沿迁徙路线走过的湿地和草原，以及沿着最短路线到达鹤越冬地的湿地和草原。五台起重机全部向东绕行，起重机使用的路径与最短路径的距离比为1.13 +/- 0.03 sd。根据美国国家海洋和大气管理局的卫星图像，我们证明，沿着起重机行驶的迁徙路线上的湿地和草原面积大于可能的最短路线。

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