Climate Change Affects Bird Migration Timing in North America (IMAGE)
Caption
Geographic variation in phenological response and example trajectories of temperature and arrival date.
Credit
Hurlbert AH, Liang Z (2012) Spatiotemporal Variation in Avian Migration Phenology: Citizen Science Reveals Effects of Climate Change. PLoS ONE 7(2): e31662. doi:10.1371/journal.pone.0031662
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