AQUASHIFT- Auswirkungen des Klimawandels auf aquatische Ökosysteme

Koordinator: Ulrich Sommer, GEOMAR, Kiel

Dauer: 2005-2012

Ziele

Das Forschungsschwerpunktprogramm AQUASHIFT umfasste Freiland- und Laborversuche, sowie Modellstudien welche die Auswirkungen des erwarteten Klimawandels auf aquatische Ökosysteme untersuchte. Der Fokus des Forschungsschwerpunktprogramms lag auf der Untersuchung der Konsequenzen von potenziellen zeitlich de-synchronisierten (“Mismatch”) von bisher synchronisierten („Match“) Prozessen auf Gemeinschafts- und Ökosystemebene ("Match"; z.B. zeitliche Übereinstimmung von Nahrungsabundanz und Nahrungsbedarf von Konsumenten).

Projekte

Marine

 

Kieler Planktonmesokosmen


Angedacht, um die Reaktion der Frühjahrsukzession des Ostseeplanktons auf Temperaturerhöhungen in koordinierten Experimenten zu untersuchen.

U. Gaedke, K. Wirtz: Modelling match and mismatch processes within plankton communities during spring succession
    
U. Riebesell, A. Engel: Temperature dependency of carbon partitioning between dissolved and particulate organic matter in pelagic new production system
    
U. Sommer: Match and mismatch between phyto- and zooplankton during spring succession. An experimental analysis with Baltic Sea plankton

K. Jürgens, H. Hoppe: Coupling between phyto- and bacterioplankton during early spring bloom conditions

RECONN

Ein Cluster um den Einfluss dre Klimaveränderung auf pelagische Ökosysteme der Ost-und Nordsee unter einer fischereiökologischen Perspektive zu untersuchen     

M. St.-John, M. Peck: Resolving Trophodynamic Consequences of Climate Change (RECONN 1): Simulating and Predicting Marine Ecosystem Dynamics and Match-mismatch Effects on Key Trophic Players
    
C. Clemmesen- Bockelmann, G. Kraus: Resolving Trophodynamic Consequences of Climate Change (RECONN 2): Match-mismatch between Secondary and Tertiary Production in the Baltic Sea

Individuelle Projekte


V. Brüchert: Contrasting strategies of anaerobic bacterial communities to adapt to long-term temperature changes in seasonally and permanently cold sediments
    
T. Reusch: Do seagrasses feel the heat? - assessing the potential for microevolutionary change in a marine keystone plant in response to global warming
    
J. Freund, K. Wiltshire: Match / mismatch of zooplankton interactions, based on existing long-term information in the North Sea
    
H. Hillebrand, K. Wiltshire: Long- and short-term effects of climate variability and physical forcing on the diversity of aquatic organisms
    
M. Simon: Algal-bacterial interactions and aggregation: Implications for the plankton succession in neritic seas of the temperate zone in the course of climate change
        

Süßwasser

Saidenbach Talsperre

Auswirkung der Klimaveränderung auf ökologische und genetische Prozesse in Seeökosystemen  

J. Benndorf, S. Hülsmann: Influence of the year-to-year variation of water temperature on the coupling between benthic and pelagic food webs
    
T. Berendonk, M. Schlegel: Adaptation to environmental warming? Microevolution in the protists Paramecium and Coleps
    
R. J. Paul, R. Pirow, B. Zeis: Mechanisms, phenotypic plasticity and genotypic determination of thermal tolerance and related properties in Daphnia and Leptodora kindtii: consequences for temperature impacts on food web interactions
    
L. Paul, T. Petzoldt: Model-aided analysis of climate impacts on planktonic food webs based on long-term data of the Saidenbach Reservoir     
       

Fließgewässer


M. Weitere, H. Arndt: Impact of climate variability on the bentho-pelagic coupling in a large river
    
M. Mutz: Shift in the synchronisation of leaf decay processes in fragmented streams
    
O. Richter: Impact of climate change on life history patterns and food web interactions of benthic assemblages of running waters: modelling and experimental approaches
    

Individuelle Projekte


S. Diehl,H. Stibor,S. Berger : Influence of temperature and stratification on spring succession of the plankton community in deep lakes

G. Kirillin,H. Behrendt : Climatic impact on temperature and mixing regime of polymictic lakes and its consequences for lake ecosystems

T. Mehner: The impact of climate variability on recruitment, life history, and physiology of sympatric pairs of ciscoes (Teleostei: Coregonus spp.) in lakes

F. Peeters, D. Straile: Modelling the impact of changes in the physical environment on plankton succession with special emphasis on Daphnia-algae interactions

M. Pfenninger: The impact of climate variability on the species ranges of European freshwater pulmonates

H.-P. Grossart: Effects of climate variability on interactions between cyanobacteria and associated microheterotrophs - consequences for development of toxic cyanobacterial
blooms

R. Adrian, D. Gerten: Phase shifts within lake plankton communities in response toward climate warming: Implications for the match/mismatch of species interactions

H. Arndt: Temperature chaos and microbial food web dynamics