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BiodivERsA Biodiversity dynamics and tipping points in our future freshwater ecosystems

The accelerating loss of global biodiversity has affected species in all biomes and ecosystemtypes. However, recent reports suggest that freshwater species are lost at a rate higher than inany other biome (Millennium Ecosystem Assessment 2005, Conventio n on BiologicalDiversity 2010). In addition to their major importance as natural habitats and sources ofbiodiversity at all levels ? genetic, species and ecosystems ? freshwater ecosystems alsoprovide a wide array of ecosystem services for humans, incl uding harvestable goods (fish,fibre, fodder), water supply (drinking water, irrigation, etc), water storage (flood prevention)and sites for recreational activities. Further, lakes and wetlands are important in the carboncycle dynamics with a high rate of carbon storage in some systems, while other are importantconduits of CO2 and CH4. For this reason they have become increasingly important in thefeedback processes in a climate change context.Even though freshwater ecosystems constituteHere we prop ose a trans-European research project addressing the ecological and socialmechanisms behind tipping points, biodiversity loss and water resource deterioration indifferent climate change scenarios. We will use these scenarios as a basis for social-ecolog icalmodelling and studies of both land use and management of ecosystem services for differentregions in Europe to allow for proactive decision-making.The proposed project is organised in five strongly integrated work packages arranged underthree umbre llas, including ?Past trends, early warnings and present situation?, ?Futurescenarios? and ?The way back ? reversion from tipping points?Work package 1. Identification of patterns, structure and early warning signalsWP 2:: Mechanistic understanding of biodiversity changesWP 2a: Effects of higher trophic levels on tipping pointsWP 3: Social-ecological integrationWP 4: Reversion from tipping pointsWP 5. Post-doc program

Prosjektleder:
Dag O. Hessen
Institusjon:
UoH-sektor/Universitetet i Oslo/Biologisk institutt
Aktivitetsnavn:
Norsk miljøforskning mot 2015
Prosjektstatus:
Bevilgning
Prosjektperiode:
01.01.2013 - 31.10.2015
Geografi:
Norge/OSLO
Fagområder:
Matematikk og naturvitenskap/Zoologiske og botaniske fag
Prosjektnummer:
225591