ReportsEvolution

Precipitation drives global variation in natural selection

See allHide authors and affiliations

Science  03 Mar 2017:
Vol. 355, Issue 6328, pp. 959-962
DOI: 10.1126/science.aag2773

Climate-driven selection

Climate change will fundamentally alter many aspects of the natural world. To understand how species may adapt to this change, we must understand which aspects of the changing climate exert the most powerful selective forces. Siepielski et al. looked at studies of selection across species and regions and found that, across biomes, the strongest sources of selection were precipitation and transpiration changes. Importantly, local and regional climate change explained patterns of selection much more than did global change.

Science, this issue p. 959

  • Present address: Institut National de la Recherche Agronomique (INRA), University Pau and Pays Adour, St. Pée sur Nivelle, France.