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Climate change is leading to the advancement of spring conditions, resulting in an earlier snowmelt and green‐up, with highest rates of change in highly seasonal environments, including alpine habitats. Migratory birds breeding at high elevations need to time their arrival and lay dates accurately with this advancement, but also with the annually variable spring conditions at their breeding sites,...
Studying phenotypic variations along gradients may provide insights into mechanisms that drive species distributions and thus can be useful indicators of environmental change. In mountains, the study of phenotypic variation along elevation gradients is of increasing relevance due to the impacts of climate change. We analysed European ringing data to measure the direction of phenotypic variation along...
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