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Themes |
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previous/next
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8.
Coastal
ecosystems: salt meadows,
marshes, dunes |
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Theme
organiser: |
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Kathrin
Kiehl (TU München, Germany), Maike Isermann
(University
of Bremen, Germany), Stefan Seiberling
(University of Greifswald, Germany) |
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Theme
description: |
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During recent
decades, coastal ecosystems have been increasingly affected by
large-scale land-use change and by
sea-level rise due to global warming. Both salt marshes and dunes have
an important function in protecting coastal regions from flooding and
erosion and provide habitats for plant and animal species with special
adaptations for survival under harsh environmental conditions.
For a successful restoration the dispersal of target species is less
limiting in coastal ecosystems than in most inland ecosystems. However,
restoration can be constrained by the difficulty of restoring natural
dynamics of flooding, sedimentation, sand accumulation
and erosion processes and hence appropriate environmental conditions on
which target species depend. |
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Session 8A: Beaches, driftlines and dunes
- maintenance and support of natural dynamics and biodiversity |
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Coastal
ecosystems like
driftlines, beaches and dunes are threatened by different processes,
for example the removal of seagrass and seaweed, recreation activities,
coastal protection measures, sea level rise, construction activities
and pollution. This concerns their areal extension, natural dynamics
and biodiversity. The session will focus on the ecological
restoration mainly of driftlines, beaches, foredunes and yellow dunes,
additionally also of grey and brown dunes. Contributions on coastal
conservation policies, technical aspects of nature restoration
activities and management as well as scientific research with respect
to planning and monitoring are welcome.
Session organiser/chair: Maike Isermann
(University
of Bremen, Germany) |
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Session 8B:
Restoration of salt marshes and brackish coastal communities |
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Attempts have
been carried out to restore
salt marshes and brackish
coastal grasslands worldwide, especially by de-embankment and
dike-breaching. The re-establishment of natural inundation leads to
drastic changes of local site conditions and management, initiating a
wide range of successions. The restoration success depends on regional
species pools, access of organisms to the restored area, salinity,
tidal regime, geomorphology, and, last but not least, on the
pre-defined targets.
The aim of this symposium is to analyse mechanisms of succession after
restoration measures have been implemented and to provide insight into
the measurement of restoration success in relation to restoration
targets. Further key points are economical constraints and aspects of
coastal protection and risk assessment.
Session organisers/chairs: Francisco Garcia Novo
(University of
Sevilla, Spain), Stefan Seiberling
(University of Greifswald, Germany)
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