Information
Ecological parameter: current velocity (preferendum) according to TachetParameter group: habitat related parameters
Explanation:
In four categories the trait describes a taxon's affinity for a specific current velocity at mesohabitat scale, from still waters (i.e. < 5 cm/s) to fast flowing waters (> 50 cm/s).
Tachet, H., Bournaud, M., Richoux, P. & Usseglio-Polatera, P. (2010): Invertébrés d'eau douce - systématique, biologie, écologie. CNRS Editions, Paris, 600 p.
Additional information:
Note that several classifications of the Tachet database are on higher taxonomic level than on species level. To display them in the list please enable "include higher taxonomic units" in the "advanced search".
Abbreviations:
| Category name | Abbreviation | Explanation |
|---|---|---|
| slow | slow | 5 - 25cm/s |
| medium | medium | 25 - 50 cm/s |
| fast | fast | > 50 cm/s |
| Taxagroup | Number of assigned taxa / total number of taxa - percentage |
|---|---|
| Porifera | 3 / 12 - 25% |
| Coelenterata | 2 / 13 - 15.3% |
| Turbellaria | 4 / 61 - 6.5% |
| Kamptozoa | 1 / 1 - 100% |
| Nemertini | 1 / 1 - 100% |
| Gastropoda | 15 / 241 - 6.2% |
| Bivalvia | 3 / 77 - 3.8% |
| Polychaeta | 1 / 13 - 7.6% |
| Oligochaeta | 16 / 240 - 6.6% |
| Hirudinea | 10 / 68 - 14.7% |
| Crustacea | 11 / 270 - 4% |
| Ephemeroptera | 16 / 353 - 4.5% |
| Odonata | 17 / 174 - 9.7% |
| Plecoptera | 9 / 576 - 1.5% |
| Heteroptera | 10 / 124 - 8% |
| Planipennia | 1 / 12 - 8.3% |
| Coleoptera | 52 / 2678 - 1.9% |
| Trichoptera | 38 / 1439 - 2.6% |
| Lepidoptera | 4 / 19 - 21% |
| Diptera (excl. Chironomidae) | 2 / 2404 - 0% |
| Bryozoa | 6 / 19 - 31.5% |