Nature Communications (Feb 2023)
Allometry reveals trade-offs between Bergmann’s and Allen’s rules, and different avian adaptive strategies for thermoregulation
Abstract
Bergmann’s and Allen’s rules are speculated to describe alternative strategies of thermal adaptation. Here, Frӧhlich et al. explore global variation across avian species to show that the way in which relative length of beaks and tarsi co-vary with ambient temperature depends on body mass and vice versa.