Stutchbury Bridget J M, Tarof Scott A, Done Tyler, Gow Elizabeth, Kramer Patrick M, Tautin John, Fox James W, Afanasyev Vsevolod
Department of Biology, York University, Toronto, Ontario M3J 1P3, Canada.
Science. 2009 Feb 13;323(5916):896. doi: 10.1126/science.1166664.
We mapped migration routes of migratory songbirds to the Neotropics by using light-level geolocators mounted on breeding purple martins (Progne subis) and wood thrushes (Hylocichla mustelina). Wood thrushes from the same breeding population occupied winter territories within a narrow east-west band in Central America, suggesting high connectivity of breeding and wintering populations. Pace of spring migration was rapid (233 to 577 kilometers/day) except for one individual (159 kilometers/day) who took an overland route instead of crossing the Gulf of Mexico. Identifying songbird wintering areas and migration routes is critical for predicting demographic consequences of habitat loss and climate change in tropical regions.
我们通过将光级地理定位器安装在繁殖期的紫崖燕（Progne subis）和伍德 Thrush（Hylocichla mustelina）上，绘制了候鸟前往新热带地区的迁徙路线。来自同一繁殖种群的伍德 Thrush 在中美洲一个狭窄的东西向地带内占据冬季领地，这表明繁殖种群和越冬种群之间具有高度的连通性。除了一只采取陆路而非穿越墨西哥湾路线的个体（每天 159 公里）外，春季迁徙速度很快（每天 233 至 577 公里）。确定鸣禽越冬区域和迁徙路线对于预测热带地区栖息地丧失和气候变化的人口统计学后果至关重要。
