Research in freshwater ecology at our department covers a very broad range of topics. We study processes at the levels of the individual organism, the population, the community, and the ecosystem to address both very general ecological questions as well as specific questions of fundamental and applied importance to the understanding and management of lakes and streams.
Major research topics include the study of:
(i) the impacts of population size structure on individual performance and the dynamics of consumer-resource and food web interactions;
(ii) the importance of organismic elemental composition (C:N:P stoichiometry) for individual life history, and for the dynamics of communities and ecosystems;
(iii) the influence of spatial processes (e.g. spatial gradients in resource flux; movement of organisms and matter across habitat boundaries) on community structure and dynamics;
(iv) ecological factors driving trait evolution and speciation;
(v) the influence of biodiversity on community structure and ecosystem function;
(vi) the influence of climate change on the abiotic environment, species ranges, and species interactions.
Our research combines mathematical and conceptual modelling with experimental, observational and comparative studies at different temporal and spatial scales.
Biotic resistanceEffects of climate on pike-salmonid interactionsPIKE - a database for fish distribution in Scandinavian lakesThe ecology of sympatric speciation of freshwater fishCarbon, nutrients and consumer-resource dynamicsLEREC (Lake Ecosystem Response to Environmental Change)Population and ecosystem effects of harvesting The importance of biodiversity for ecosystem functioning in streamsThe importance of emerging stream insects for the community structure and function of terrestrial systemsConsumer growth rates and nutritional constraints across latitudinal gradients – combining ecology and evolutionClimate change and ice formation in streams: effects on biodiversity and tools for proactive restorationEnvironmental drivers of asymmetric interactions between benthic and pelagic algaeCompetitive interactions and community impacts of crustacean zooplankton – merging dynamics of structured populations with ecological stoichiometryThe role of predation and competition in phenotype dependent dispersalBenthic algal responses to temperature and nutrient regimeTOP-UP - Top down versus bottom up effects in aquatic food websFANTI-SIZEHydrological controls of riparian vegetationCoexistence patterns in size-structured intraguild predation systemsEffects of temperature and terrestrial carbon on fish populationsResponses of RiParian forests to hydroPeaking: towards a sustainable hydropower management
The effects of intraspecific size variation on population and community dynamics
Ecological effects of invasive species