 Climate change is causing species to shift their ranges, with some species benefiting more than others. The winners tend to be those with traits such as higher seed mass and lower specific leaf area, while the losers tend to be those with traits such as lower seed mass and higher specific leaf area. However, these traits do not necessarily predict which species will fare better in the long run, as both winners and losers can still experience range expansion or contraction. This article was authored by Mariana Gossier-Crydo, Isla H. Myers-Smith, and D. Bjorkman, and others.