TY  - JOUR
A1  - Burkart, Michael
A1  - Wichmann, Matthias
T1  - River corridor plants (Stromtalpflanzen) : new ideas to approach an old distribution pattern
N2  - Rivers form the most important natural corridors through the landscape. Certain plant species grow mainly or exclusively in these corridors as it has been observed for about 150 years in Central European lowlands. However, these species do not form a homogenous group in terms of biogeography, site requirements, life form, or any other feature this distribution pattern. Accordingly, first, we give a review of the various hypotheses which have been proposed to explain the river corridor distribution pattern. This includes (1) river corridors acting as routes of migration or invasion, (2) floodplain-specific disturbance providing open sites, (3) temporary anoxic conditions during floods, (4) deviating meso-climatic conditions, (5) specific substrate and nutrient supply, and (6) water supply. In particular, the above hypotheses (2-5) imply that river corridor plants may be well-adapted to specific stress and regeneration conditions in floodplains while other species may be not. This may lead to reduced competition in river corridors. We suggest this mechanism to constitute actual benefits for river corridor plants. Secondly, we present a simple model of multi-species population dynamics to show, that our competition-related framework is, in principle, able to explain river corridor plant species distribution patterns. As, however, none of the above hypotheses (1-6) have been tested experimentally we thirdly present a currently running experimental study on the river corridor plant Juncus atratus (black rush) in north- eastern Germany. We emphasize that much more experimental evidence must be gained on population ecology and meta- population dynamics to understand the distribution patterns of river corridor plants.
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Burkart, Michael
A1  - Wichmann, Matthias
A1  - Wattenbach, Martin
A1  - Pötsch, Joachim
T1  - Die Vegetation der unteren Havelaue
BT  - Stand der Forschung und Perspektiven
JF  - Brandenburgische Umwelt-Berichte : BUB ; Schriftenreihe der Mathematisch-Naturwissenschaftlichen Fakultät der Universität Potsdam
Y1  - 2003
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-4035
SN  - 1434-2375
SN  - 1611-9339
VL  - 13
SP  - 53
EP  - 71
ER  - 
TY  - JOUR
A1  - Jeltsch, Florian
A1  - Wichmann, Matthias
A1  - Dean, W. R. J.
A1  - Moloney, Kirk A.
A1  - Wissel, Christian
T1  - Implications of climate change for the persistence of raptors in arid savannah
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Jeltsch, Florian
A1  - Wichmann, Matthias
A1  - Johst, J.
A1  - Moloney, Kirk A.
A1  - Wissel, Christian
T1  - Extinction risk in periodically fluctuating environments
Y1  - 2003
ER  -