Ecological parameter: lateral connectivity preference
Parameter group: region related 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 (based on 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.
Amoros, C., Roux, A.L., Reygrobellet, J.L., Bravard, J.P. and Pautou, G. (1987), A method for applied ecological studies of fluvial hydrosystems. Regulated Rivers: Research & Management 1: 17-36.
Classification system: 10 point assignment system
A description of the coding system can be found here Abbreviations/Coding Systems
|eupotamon||eup||main channel and connected side arms|
|parapotamon||prp||side arms connected only at the downstream end at mean water levels|
|plesiopotamon (including lakes)||plp||no connectivity with the main channel at mean water levels; coverage by macrophytes does not exceed 20%; lakes included|
|palaeopotamon (including 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|
|indicator weight||IW||indicator weight|
|habitat value||HV||habitat value|
|temporary streams||stream||occurring in temporary streams|
|Taxagroup||Number of assigned taxa / total number of taxa - percentage|
|Bivalvia||20 / 77 - 25.9%|
|Ephemeroptera||261 / 353 - 73.9%|
|Gastropoda||49 / 241 - 20.3%|
|Odonata||59 / 174 - 33.9%|
|Trichoptera||202 / 1439 - 14%|