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Ecological parameter: lateral connectivity preference

Parameter group: region related parameters

Explanation:
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. M√ľnstersche 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

Abbreviations:
Category name:Abbreviations:Explanation:
eupotamoneupmain channel and connected side arms
parapotamonprpside arms connected only at the downstream end at mean water levels
plesiopotamon (including lakes)plpno connectivity with the main channel at mean water levels; coverage by macrophytes does not exceed 20%; lakes included
palaeopotamon (including pools, ponds)papno connectivity with the main channel at mean water levels; coverage by macrophytes exceeds 20%
temporary water bodiestmptemporary pools, water level primarily dependent on ground water levels
indicator weightIWindicator weight
habitat valueHVhabitat value
temporary streamsstreamoccurring in temporary streams
Assigned taxa for each higher systematic unit:
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Bivalvia20 / 77 - 25.9%
Ephemeroptera261 / 353 - 73.9%
Gastropoda49 / 241 - 20.3%
Odonata59 / 174 - 33.9%
Trichoptera202 / 1439 - 14%