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Comparison of recovery processes between water categories (workpackage 6.4)

Objectives

Data

Workpackage strongly depends on the data collected in Module 5 (Management and global/climate change) and additionally on those from the lake and coastal/transitional Modules 3 and 4, respectively. Furthermore, additional targeted data collecting will be done by the partners per water category on specific restoration projects and trait/functional data will be gathered from www.freshwaterecology.info. A literature metadata analysis helps gather existing knowledge on recovery processes in different water categories.

First results

The influence of biological factors such as dispersal, connectivity and metapopulation dynamics on recovery processes was reviewed. Five restoration constraints were listed so far:

In conclusion, although the importance of establishing the suitable abiotics is stressed by a multitude of studies, the awareness that other factors should be considered as well is apparent in recent recommendations on freshwater restoration.

Relevance for end users

The comparison of responses along recovery trajectories between water categories will contribute to making existing assessment methods better comparable, and as such will add to the intercalibration of assessment methods presently carried out by the EU Member States. The published knowledge on biological processes on catchment scale, such as connectivity, dispersal and metapopulation dynamics will provide insights in the causes of negative restoration results when species did not return while the environmental conditions were fixed appropriately. Also knowledge will be provided on the impact of catchment scale processes and global change on recovery chains.


WISER: "Water bodies in Europe: Integrative Systems to assess Ecological status and Recovery"
Online: http://www.wiser.eu/programme/integration/comparison-of-recovery-processes/index.php [date: 2017/09/23]
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