Vegetation recovery in restored streams

Throughout northern Sweden rivers have been channelized for timber floating and many organisms have experienced changed conditions. During recent years, restoration works have started in some of these rivers. An important question is to what extent different organisms can recover after restoration. Is there a return to more pristine conditions or do new types of plant and animal communities develop? This project studies the ability of different plant species to disperse and colonize in restored watercourses. The project focuses on a comparison between different types of restored and channelized streams. A significant point is the relative importance of dispersal and habitat change for the ability of plants to colonize restored watercourses. The importance of increased occurrence of physical objects in the channel (boulders, logs), reduced currrent velocity, longer flooding period, increased sediment deposition and ice impact are some factors being investigated. The project is funded by Umeå University and the Swedish EPA

Principal researcher

Christer Nilsson

Page Editor: Elisabet Carlborg

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Research area & members

Restoration ecologyNilsson Christer