Information
Ecological parameter: maximal potential size according to Tachet
Parameter group: life & body related parameters
Explanation:
The maximal potential size corresponds to the maximal size that the last aquatic stage of the taxon can reach in a large variety of (more or less favorable) environmental conditions. Seven categories are defined.
Tachet, H., Bournaud, M., Richoux, P. & Usseglio-Polatera, P. (2010): Invertébrés d'eau douce - systématique, biologie, écologie. CNRS Editions, Paris, 600 p.
Type of assignment: affinity score assignment system (0 to 3)
A description of the coding system can be found here Abbreviations/Coding Systems
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: | Abbreviations: | Explanation: |
|---|---|---|
| <= 0.25 cm | <= 0.25 cm | <= 0.25 cm |
| > 0.25 - 0.5 cm | > 0.25 - 0.5 cm | > 0.25 - 0.5 cm |
| > 0.5 - 1 cm | > 0.5 - 1 cm | > 0.5 - 1 cm |
| > 1 - 2 cm | > 1 - 2 cm | > 1 - 2 cm |
| > 2 - 4 cm | > 2 - 4 cm | > 2 - 4 cm |
| > 4 - 8 cm | > 4 - 8 cm | > 4 - 8 cm |
| > 8 cm | > 8 cm | > 8 cm |
| Taxagroup | Number of assigned taxa / total number of taxa - percentage |
|---|---|
| Bivalvia | 3 / 77 - 3.8% |
| Bryozoa | 6 / 19 - 31.5% |
| Coelenterata | 2 / 13 - 15.3% |
| Coleoptera | 52 / 2678 - 1.9% |
| Crustacea | 11 / 270 - 4% |
| Diptera (excl. Chironomidae) | 2 / 2404 - 0% |
| Ephemeroptera | 16 / 353 - 4.5% |
| Gastropoda | 15 / 241 - 6.2% |
| Heteroptera | 10 / 124 - 8% |
| Hirudinea | 10 / 68 - 14.7% |
| Kamptozoa | 1 / 1 - 100% |
| Lepidoptera | 4 / 19 - 21% |
| Nemertini | 1 / 1 - 100% |
| Odonata | 17 / 174 - 9.7% |
| Oligochaeta | 16 / 240 - 6.6% |
| Planipennia | 1 / 12 - 8.3% |
| Plecoptera | 9 / 576 - 1.5% |
| Polychaeta | 1 / 13 - 7.6% |
| Porifera | 3 / 12 - 25% |
| Trichoptera | 38 / 1439 - 2.6% |
| Turbellaria | 4 / 61 - 6.5% |