A prediction model of running waters ecosystem in the Czech Republic based on mayfly taxocoenes of undisturbed rhithral streams
| Authors | |
|---|---|
| Year of publication | 2001 |
| Type | Article in Proceedings |
| Conference | Trends in research in Ephemeroptera and Plecoptera |
| MU Faculty or unit | |
| Citation | |
| Field | Ecology |
| Keywords | Ephemeroptera; taxocoenes; rhithral; prediction; environmental changes |
| Description | Samples of mayfly larvae and main environmental variables from 80 undisturbed localities evenly distributed in the Czech Republic were taken and measured during 1994 - 1996. Data were examined by TWINSPAN and by canonical correspondence analysis (CCA) to define mayfly taxocoenes characteristic of different areas and to prepare a mayfly database for a prediction model of effects of environmental changes (HOBENT). To test the general applicability of the model, mayfly species composition at 13 localities was compared to a hypothetical, desired taxocoenes. Although restricted only to a part of aquatic macroinvertebrate communities (mayflies), this procedure permitted evaluation of environmental degradation of other 13 localities. Despite some restrictions, the planned total number of 400 background localities seems to be sufficient for successful application of this prediction model. |
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