Global warming leads to more uniform spring phenology across elevations.

@article{Vitasse2018GlobalWL,
  title={Global warming leads to more uniform spring phenology across elevations.},
  author={Yann Vitasse and Constant Signarbieux and Yongshuo H Fu},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2018},
  volume={115 5},
  pages={
          1004-1008
        }
}
One hundred years ago, Andrew D. Hopkins estimated the progressive delay in tree leaf-out with increasing latitude, longitude, and elevation, referred to as "Hopkins' bioclimatic law." What if global warming is altering this well-known law? Here, based on ∼20,000 observations of the leaf-out date of four common temperate tree species located in 128 sites at various elevations in the European Alps, we found that the elevation-induced phenological shift (EPS) has significantly declined from 34 d… CONTINUE READING