Population ecology, Marine botany, Tundras, Lichens, Environmental sciences, Ecosystems, Shrublands, Biology, Botany, Environmental studies, Global warming, Synecology, Bryology, Algae, Plant ecology, Biomes, Plant communities, Ecology, Plants, Phycology, Climate change, Plant-climate interactions, Heathlands, Biocenosis, Vegetation, Biological sciences, Bry...