Climatic index ; Climatic warming ; Deciduous forest ; Ecology ; Ecotone ; Forest ; Global change ; Mountain ; Photosynthesis ; Polar region ; Tree line
The AA. address the suitability of two montane ecotones, the alpine treeline ecotone and the deciduous/Boreal forest ecotone, as indicators of climate change. In so doing, they 1) briefly review the literature on the ecotone, focusing on the factors