Examining the total arrival distribution of migratory birds
Examining the total arrival distribution of migratory birds
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DOI：
10.1111/j.1365-2486.2004.00887.x
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发表时间：
2005-01-01
影响因子：
11.6
通讯作者：
Walker, D
中科院分区：
文献类型：
--
作者：
Sparks, TH;Bairlein, F;Walker, D
本文报道了英国、德国、俄罗斯和芬兰等地杨柳、画眉和姬鹬春季迁徙时间的总体分布。这是第一次在大陆范围内审查基于已知努力监测的高质量数据。首次抵达日期，通常在文献中报道，与平均抵达日期呈正相关，虽然他们不会很好地预测后者。在所有地点，近年来每个物种的到达分布至少有一个方面明显提前。早熟的趋势与当地温度较高和冬季北大西洋涛动指数较正有关。在早期的年份，到达分布变得更加拉长和倾斜。研究人员现在应该调查早期到达对当前和未来鸟类种群的影响。
This paper reports on the total distribution of spring migration timing of willow warbler, chiffchaff and pied flycatcher at locations in the UK, Germany, Russia and Finland. This is the first time that high-quality data based on known-effort monitoring has been examined on a continental scale. First arrival dates, commonly reported in the literature, were positively correlated with mean arrival dates although they would not make good predictors of the latter. At all locations, at least one aspect of the arrival distribution of each species had got significantly earlier in recent years. The trend towards earliness was associated with warmer local temperatures and more positive winter North Atlantic Oscillation index. In years that were early, the arrival distribution became more elongated and skewed. Researchers should now investigate the consequences of earlier arrival on current and future bird populations.