Figure 3: Observed feedback at the individual level. (a)
PopTrait ex situ experiment in Clermont-Ferrand for understandingP. nigra responses to biomechanical constraints; (b) sediment
tail downstream of a multi-stemmed black poplar on an alluvial bar of
the Tech River. The morphology of the sediment tail is correlated with
morphological traits of the black poplar individual. Photographs:
Virginia Garófano-Gómez (a) and Aurélien Chabanon (b).