Six decades of North American bird banding records reveal plasticity in migration phenology
Six decades of North American bird banding records reveal plasticity in migration phenology
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DOI：
10.1111/1365-2656.13887
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发表时间：
2023-01-30
影响因子：
4.8
通讯作者：
Covino, Kristen M.
中科院分区：
文献类型：
--
作者：
Horton, Kyle G.;Morris, Sara R.;Covino, Kristen M.
鸟类迁徙的时间已经演变为利用关键的季节性资源，然而物候反应中的可塑性可能允许对年际资源物候进行调整。迁徙物种的多样性和应对气候变化的潜在资源的变化使得概括这些关系具有挑战性。我们使用北美各地春季和秋季迁徙期间的鸟类环志记录来检验大尺度物候对年际温度波动的响应和物候学的长期年度趋势。我们总共研究了19种北美林莺(鹦鹉科)，总结了从1961年到2018年的2,826,588只环志鸟类的迁徙时间，涉及46个春季地点和124个秋季地点。在春季，环志地点较温暖的春季气温使19种鸟类中的16种提前了中值通过时间，平均每1种中值通过时间提前0.65天。气温升高，从0.25到1.26天？(-1)。在秋季，它们之间的关系相当弱，19种物种中只有3种与温度有关。在这三种情况下，较晚的出发日期与较温暖的秋季有关。在气温变化的气候情景下预测这些趋势，我们预测从2041年到2060年和2081年到2100年，在共享的社会经济路径下，春季将继续进步，秋季将出现更温和和可变的变化。这些结果表明，长途候鸟至少在春季对温度年际波动做出反应的能力，并展示了北美鸟类环带数据理解多种鸟类物候趋势的潜力。
The timing of avian migration has evolved to exploit critical seasonal resources, yet plasticity within phenological responses may allow adjustments to interannual resource phenology. The diversity of migratory species and changes in underlying resources in response to climate change make it challenging to generalize these relationships.We use bird banding records during spring and fall migration from across North America to examine macroscale phenological responses to interannual fluctuations in temperature and long-term annual trends in phenology.In total, we examine 19 species of North American wood warblers (family Parulidae), summarizing migration timing from 2,826,588 banded birds from 1961 to 2018 across 46 sites during spring and 124 sites during fall.During spring, warmer spring temperatures at banding locations translated to earlier median passage dates for 16 of 19 species, with an average 0.65-day advancement in median passage for every 1? increase in temperature, ranging from 0.25 to 1.26 days ?(-1). During the fall, relationships were considerably weaker, with only 3 of 19 species showing a relationship with temperature. In those three cases, later departure dates were associated with warmer fall periods. Projecting these trends forward under climate scenarios of temperature change, we forecast continued spring advancements under shared socioeconomic pathways from 2041 to 2060 and 2081 to 2100 and more muted and variable shifts for fall.These results demonstrate the capacity of long-distance migrants to respond to interannual fluctuations in temperatures, at least during the spring, and showcase the potential of North American bird banding data understanding phenological trends across a wide diversity of avian species.