Climate-driven thermal opportunities and risks for leaf miners in aspen canopies

H. Arthur Woods, Geoffrey Legault, Joel Kingsolver, Sylvain Pincebourde, Alisha Shah & Beau Larkin
In tree canopies, incoming solar radiation interacts with leaves and branches to generate temperature differences within and among leaves, presenting thermal opportunities and risks for leaf-dwelling ectotherms. Although leaf biophysics and insect thermal ecology are well understood, few studies have examined them together in single systems. We examined temperature variability in aspen canopies, Populus tremuloides, and its consequences for a common herbivore, the leaf-mining caterpillar Phyllocnistis populiella. We shaded leaves in the field and measured...
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