Data for: Upslope migration is slower in species with high physiological demands

Climate change is forcing species to migrate to cooler temperatures at higher elevations, yet many taxa are dispersing slower than necessary. One yet-to-be-tested explanation for inadequate migration rates is that high-elevation environments pose physiological barriers to dispersal, particularly in species with high metabolic demands. Our global synthesis of >800 species supports this “physiological constraints” hypothesis: upslope migration is slower in insects that depend on nature’s most expensive locomotor strategy—flight.