Phenology Across Scales: An Intercontinental Analysis of Leaf‐Out Dates in Temperate Deciduous Tree Communities

Aim: To quantify the intra-community variability of leaf-out (ICVLo) among dominant trees in temperate deciduous forests,
assess its links with specific and phylogenetic diversity, identify its environmental drivers and deduce its ecological consequences
with regard to radiation received and exposure to late frost.
Location: Eastern North America (ENA) and Europe (EUR).
Time Period: 2009–2022.
Major Taxa Studied: Temperate deciduous forest trees.
Methods: We developed an approach to quantify ICVLo through the analysis of RGB images taken from phenological cameras.
We related ICVLo to species richness, phylogenetic diversity and environmental conditions. We quantified the intra- community
variability of the amount of radiation received and of exposure to late frost