InformationEcological parameter: hydrological preference
Parameter group: region preference parameters
Species are classified according to their preferred occurrence in water bodies of different hydrologic characteristics. The categories represent the gradient of lateral connectivity in a floodplain ranging from running waters to different types of standing waters (Amoros et al. 1987, Amoros & Roux 1988). The criteria for the habitat types are water permanency, connectivity with the main channel and the coverage by macrophytes.
Amoros, C. & Roux, A.L. 1988. Interaction between water bodies within the floodplains of large rivers: function and development of connectivity. Münstersche Geographische Arbeiten 29: 125-130.
Classification system: 10 point assignment system
|eupotamon||eup||main channel and connected side arms|
|parapotamon||prp||side arms connected only at the downstream end at mean water levels|
|plesiopotamon (incl. lakes)||plp||no connectivity with the main channel at mean water levels; coverage by macrophytes does not exceed 20%; lakes included|
|palaeopotamon (incl. pools, ponds)||pap||no connectivity with the main channel at mean water levels; coverage by macrophytes exceeds 20%|
|temporary water bodies||tmp||temporary pools, water level primarily dependent on ground water levels|
|Taxagroup||Number of assigned taxa / total number of taxa - percentage|
|Gastropoda||49 / 230 - 21.3%|
|Bivalvia||20 / 66 - 30.3%|
|Ephemeroptera||261 / 344 - 75.8%|
|Odonata||60 / 158 - 37.9%|
|Trichoptera||202 / 1428 - 14.1%|