|PROJECTE||Temporary fluvial ecosystems and global change: effects on ecosystem structure and functioning (FUNSTREAM)|
Ministerio de Ciencia e Innovación
Isabel Muñoz, Universitat de Barcelona
Sergi Sabater (ICRA)
According to the global climate change predictions, the Mediterranean region is threatened by an increase in temperature and a reduction of precipitations by the end of the 21st century. These alterations will directly impact the water availability as well as the frequency and intensity of drought episodes. The main objective of FUNSTREAM is to understand how the hydrological temporality will affect the structure and functioning of river ecosystems. In this context, “temporality” integrates the variability in frequency, duration and predictability of flow intermittence, as well as other related natural or anthropogenic stressors (for instance: quantity and quality of organic matter or eutrophication degree).
The specific objectives of FUNSTREAM are: 1) To characterize the relationship between the frequency and duration of flow intermittency and the quantitative and qualitative biogeochemical processing of organic matter in temporal fluvial systems. 2) To explore the response of biotic communities structure and function (OM processing) in relation to the flow intermittency frequency and duration. 3) To discern the key factors associated to these changes, and predict the structural and functional responses of fluvial temporary ecosystems.
Changes in biodiversity and ecosystem functioning are expected to be shaped by temporality in river ecosystems. Therefore FUNSTREAM can contribute to understand the effects on organic matter decomposition, algal and bacterial carbon uptake or greenhouse gases (GHG) emissions.