...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Biometeorology: Journal of the International Society of Biometeorology >The influence of wind conditions in Europe on the advance in timing of the spring migration of the song thrush (Turdus philomelos) in the south-east Baltic region
【24h】

The influence of wind conditions in Europe on the advance in timing of the spring migration of the song thrush (Turdus philomelos) in the south-east Baltic region

机译：欧洲的风情对东南波罗的海地区鹅口疮（Turdus philomelos）春季迁徙时间提前的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Some of the factors that could influence changes in phenology of the song thrush (Turdus philomelos) during spring migration have been analyzed in relation to the timing of their return to the south-east Baltic region over the last 40 years. These include wind direction and velocity, temperature and precipitation in the wintering areas and along the migratory route. In March, a significant correlation was found between the timing of passage in the Baltic region and both the air temperatures in wintering area and winds over the migratory route. In April, when mass migration of thrushes occurs, the timing of passage was correlated with temperature, winds and, partly, precipitation over the route of migration. In this month, the frequency of tailwinds increased significantly along the route of migration from south-west France to the Baltic region over the last 40 years. The tailwind frequency was correlated with the beginning, middle and end of spring passage, accounting for 51% of the variance of median dates of the passage. The higher ambient temperatures over the migratory route explain nearly 20% of the variance in the timing of passage. Our results suggest that the advance in the timing of spring migration is primarily due to (1) the increased frequency of tailwinds favorable for migratory flights over the migratory route, and (2) the earlier emergence of the conditions enhancing migration due to higher spring temperatures in the winter quarters and on the migratory route.
机译：在过去的40年中，已经分析了一些可能影响歌rush画眉在春季迁徙过程中的物候变化的因素，并将它们返回东南波罗的海地区的时间。这些包括越冬地区和沿迁徙路线的风向和风速，温度和降水。在三月，发现波罗的海地区的航行时间与越冬地区的气温和迁徙路线上的风之间存在显着的相关性。 4月，当鹅口疮发生大规模迁移时，通过的时间与温度，风和部分迁移路径上的降水相关。在本月中，过去40年中，沿顺风从法国西南向波罗的海地区迁移的频率大大增加。顺风频率与春季通道的开始，中间和结束相关，占通道中间日期变化的51％。迁徙路线上较高的环境温度解释了通过时间变化的近20％。我们的结果表明，春季迁徙时间的提前主要是由于（1）有利于迁徙路线上的迁徙飞行的顺风频率增加，以及（2）由于较高的春季温度而增强迁徙条件的出现较早。在冬季和迁徙路线上。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号