Institutionen för ekologi och genetik

Akvatiska samhällen och populationer

Our research is aimed at understanding mechanisms and processes important for the structure, biodiversity and function of aquatic communities. We develop this research along two lines in which the importance of consumer-resource interactions for the structure and function of aquatic communities is one direction and the adaptive consequence of those interactions is another direction. We use different species of freshwater fish to study how species interactions across habitats can affect ecosystem dynamics. Specifically, we test how benthic habitat subsidies can affect population and community interactions by fish foraging in littoral and pelagic habitats of lakes. A major effort of our research is paid to the adaptive consequences of species interactions, species invasions and external environmental variation. Fish often show strong population dynamics and such patterns also allow us to test the evolutionary dynamics in relation to density fluctuations. The research is conducted using a combination of models, experiments and field studies. For specific research projects see personal home pages.