Preface. Contributors. Establishment and development of the Nordic NSSE group. The Holocene history of the Nordic mountain birch belt. Vegetation sections in northern Fennoscandian mountain birch forests. Mountain birch taxonomy and floristics ofmountain birch woodlands. The establishment of an arboretum in Greenland. Distribution and characteristics of birch woodlands in north Iceland. Ecology of some epiphytic lichens on the mountain birch. Effects by fertilization and watering on morphology inyoung mountain birch plants of different provenances - a pilot study. Coppicing and growth of various provenances of mountain birch in relation to nutrients and water. Carbon economy in a birch-dominated ecosystem species in northern Fennoscandia. Biomassproportion, production and leaf nitrogen distribution in a polycormic mountain birch stand (Betula pubescens ssp. czerepanovii) in northern Sweden. Biomass, nitrogen turnover and nutrient use characteristics in subarctic mountain birch trees. Variation ingrowth patterns among provenances, ecotypes and individuals of mountain birch. Inorganic nutrient content in plant species of a mountain birch-dominated ecosystem in northern Fennoscandia. Performance of mountain birch in relation to its treeline in theTornetr sk area, northern Sweden. Temporal variation in the efficiency of photosystem ii in birch (Betula Pubescens ssp. pubescens) during the growing season - a pilot study. Studies of apical growth cessation in dwarf birch (Betula nana L.) fromSpitsbergen and northern Norway. Insect herbivores and herbivory effects on mountain birch dynamics. Impact on mountain birch forest in the past and the future of outbreaks of two geometrid insects. Using remote sensing to detect caterpillar outbreaks inmountain birch forests - a new approach. Birds in subarctic mountain birch forests - dynamics and strategies. Rodent dynamics and communities in the birch forest zone of northern Fennoscandia. Mountain birch forests and reindeer husbandry. Ecosystemdegradation and restoration of birch woodlands in Iceland. Summer farming in the subalpine birch forest. Effect of enhancement of willow (Salix spp.) on establishment of birch (Betula pubescens) on eroded soils in Iceland. Pollution-induced changes inmountain birch forests. Climate change impacts on mountain birch ecosystems. Regeneration of dominant plants after short-term pedestrian trampling in subarctic plant communities. People and birch: the Sami perception of the environment and itssustainability. Nordic mountain birch ecosystems - a conceptual overview.