Abstract
Kettle holes as unique and heterogeneous ecosystems are of particular importance for biodiversity in the otherwise rather monotonous agricultural landscape of north-eastern Brandenburg. This study investigates the ground beetle communities within the individual vegetation zones (field, ruderal vegetation, sedge swamp, reed and flooding area) of 20 kettle holes, with five pitfall traps placed in each of the holes. The results show that some species have a very specific abundance distribution in certain vegetation zones of the kettle holes. Particularly noteworthy here are the reed and flooding areas, which appear to be particularly rich in species despite the low number of traps. Many of the endangered species recorded are reed-dependent hygrophilous species. This demonstrates the importance for the preservation of the kettle holes with their strong water level fluctuations, which harbor a ground beetle community that is particularly worthy of protection.
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