Catchment to coast
Taking a meta-ecosystem approach, I am interested in quantifying carbon and nutrient flow across ecosystem boundaries, including terrestrial, freshwater, and coastal ecosystems. Current field work include sites in Arctic Norway, and I am happy to expand the climate zones with interested collaborators!
The role of indigenous communities in protecting biodiversity
We are in the brink of catastrophic changes caused by the industrial and rich world way of living and exploiting natural resources and people. As it has always been, the native peoples around the world are the guardians of biodiversity and sustainable well-being, and yet they face severe threats and challenges imposed by those same industrialized and rich nations and communities. I am at learning from the indigenous communities’ vast and diverse experiences on how to better and successfully protect biodiversity and ecosystems.
Biodiversity and Ecosystem Functioning
Global change, from habitat alterations to changes in climate, causes distributional shifts in species composition and species extinction. Thus, it is important to know how ecosystems respond to changes in species number and composition. My major goal is to quantify the role of species functional diversity in affecting important ecosystem processes. To reach that goal, I also aim at (i) assessing the spatial and temporal conditions in which diversity affects functioning, (ii) evaluating which functional traits are responsible for diversity effects on ecosystems, and (iii) quantifying the role of intra-specific functional variation on food web structure and function.
Ecological stoichiometry is the currency I often use in order to understand the cycling of carbon and nutrients in nature. The balance of nutrients between organisms and the environment has strong implications for how resources are consumed, or for the fitness of different species. Ecological stoichiometry offers thus a powerful theoretical framework by which we can investigate the chemical conditions driving the functioning of ecosystems.
Stream ecosystem functioning
Streams are vital to human beings as a source of drinking water and are vital to ecosystems by transporting water and nutrients across the landscape. When looking at streams, I aim to assess the effects of human disturbances at the reach and landscape levels on important ecological processes, such as the invertebrate community composition and the production and decomposition of organic matter.
Parasite effects on functioning
Parasitism is a ubiquitous life strategy. However, its effect on the functioning of ecosystems has been largely ignored. My main goals are (i) to quantify the role of parasites in affecting the phenotype of their hosts and (ii) to evaluate how host intra-specific diversity, driven by parasite-induced changes in phenotype, will affect ecosystem functioning.