J.R. Jeplawy, H.F. Cooper, J. Marks, R.L. Lindroth, M.I. Andrews, Z.G. Compson, C. Gehring, K.R. Hultine, K. Grady, T.G. Whitham, G.J. Allan, and R.J. Best. 2021. Plastic responses to hot temperatures homogenize riparian leaf litter, speed decomposition, and reduce detritivores. Ecology 102:e03461. link
Riparian ecosystems are shaped by leaf litter traits that depend on both local adaptation and plasticity across a climate gradient. MS student Joann Jeplawy used 6 populations and 3 common gardens of Fremont cottonwood across Arizona.
She found that trees growing in hot conditions made small and fast-decomposing leaves, whereas cold conditions allowed trees from different origins to express a wide range of traits and decomposition rates.