1. NSERC-UQAT-UQAM Industrial Research Chair in Sustainable Forest Management, Forest Research Institute; Université du Québec en Abitibi-Témiscamingue; Rouyn-Noranda Québec Canada
2. Centre for Bio-Archaeology and Ecology (UMR 5059 CNRS/UM2/EPHE); Institut de Botanique; Montpellier France