Information
Ecological parameter: life cycle duration according to TachetParameter group: life & body related parameters
Explanation:
The life cycle of macroinvertebrates varies from a few weeks (e.g. Diptera Simuliidae) to several decades (e.g. Bivalvia from the genus Margaritifera). However, except for insects, this information is often partial and scattered. Therefore only two 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.
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 |
|---|---|---|
| <= 1 year | <= 1 year | life duration up to one year |
| > 1 year | > 1 year | life duration longer than one year |
| 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% |