The course provides extended knowledge of processes across Arctic and Subarctic terrestrial ecosystems. It provides understanding of how ecosystem processes are regulated by abiotic and biotic factors, such as nutrient availability, the Arctic climate and plant-soil-organism interactions and its relationship to the ecosystem function. Particular focus will be on potential impacts of changes in climate on ecosystem processes and on feedback mechanisms from arctic ecosystems to the climate system. The course provides an overview of how controls and impacts on ecosystem processes depend on temporal and spatial scales. Excursions to various ecosystems and project work are included. The course is given by researchers at the Climate Impacts Research Centre and is located in Abisko, Lapland.
The course examines global environmental changes and their consequences for biogeochemical processes in arctic and subarctic ecosystems. Particular focus is given to linkages between terrestrial and aquatic ecosystems, transport of nutrients and green house gases and effects of climate change on biological and geochemical processes. The course is given by researchers at Climate Impacts Research Centre in Abisko, Lapland. Important parts are fieldwork, methods and writing a scientific report.
During the course, the plant and animal species of the mountains and their habitat are studied with emphasis on factors and processes that determine the density and distribution of the species. This includes studies of various species adaptations to the mountain environment as well as trophic interactions in terrestrial and aquatic systems. In addition, the climate, bedrock, hydrology and potential effects of climate change are treated. During excursions and field projects theory and identification of species is practiced as well as oral and written presentation.
Under kursen tränas artbestämning av fjällväxter med hjälp av de aktuella och vanligaste nordiska flororna. Vidare behandlas växternas systematik översiktligt. Kärlväxtflorans artsammansättning och zonering från fjällbjörkskogen upp till den högalpina miljön studeras i fält. Kursen tar upp hur miljöfaktorer som snö, vind och markens egenskaper inverkar på artfördelningen. Studenterna tränas även i att samla in och dokumentera växtmaterial, samt genomföra växtinventeringar i fält.