arbre (3) Environmental sciences (3) Science (3) Forests and forestry (3) Earth (Planet) (3) Climatology (3) Climate (3) Research (3) enquête (2) espèce (2) surveillance (2) intérêts (2) santé (2) écologie (2) France (2) Ecology (2) Monitoring (2) Development (2) Male actors (2) Trees (2) Species (2) Service industries (2) Medicine (2) Life sciences (2) Inventories (2) Interest (2) Health (2) Forest reserves (2) Ecology (2) Comedians (2)