Tree saplings growing in a forest understorey undergo frequent changes in their light environment, to which they must adapt. Collet et al. analyse changes in sapling stem inclination over 4 years after canopy opening in Fagus sylvatica and Acer pseudoplatanus. Both species show considerable and rapid stem reorientation resulting in more erect shoots, and the results suggest that this process plays a significant role in the growth strategy of the species.
Plants growing under elevated atmospheric CO2 concentrations often have reduced stomatal conductance and subsequently increased leaf temperature. Šigut et al. find that this is indeed the case for broadleaved Fagus...
Collet et al. study a tree plantation that mixes beech and sycamore according to a double gradient of density and species’ proportion, and find that density and tree size are the primary factors determining individual...
The results of this study demonstrate that massive cavitation is probably a causal factor for tree mortality under extreme water stress conditions.
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