“…Concern about the current climate change is increasing, probably because ecological (Walther et al, 2001;Parmesan & Yohe, 2003;Root et al, 2003), as well as socio-economic (Michaelis, 1994;Keeney & Mc Daniels, 2001;Yohe & Schlesinger, 2002) impacts are more and more perceptible. Climate change is significantly affecting species development timing (Menzel & Fabian, 1999;Walther et al, 2001;Parmesan & Yohe, 2003), physiology (Keeling et al, 1996;Myneni et al, 1997;Cannell et al, 1998;Hughes, 2000), competition (Hughes, 2000) and geographical ranges (Parmesan et al, 1999;Walther et al, 2002;Parmesan & Yohe, 2003) with major consequences on biodiversity, silviculture and agriculture (Nicholis, 1997;Jingyun et al, 2001).…”