Information
Ecological parameter: LANDOLT Bryophytes - reaction Switzerland (Alpine region)
Parameter group: habitat related parameters
Explanation:
The parameter characterises the life form of species with respect to the position of the overwintering organs.
Raunkiaer, C. (1934): The life forms of plants and statistical plant geography. Oxford.
Ellenberg, H. & Mueller-Dombois, D. (1965): A key to Raunkiaer plant life forms with revised subdivisions.- Ber. Geobot. Inst ETH, Stifutung Rübel, Zürich 37, 19pp.
Type of assignment: single category assignment system (including variation)
A description of the coding system can be found here Abbreviations/Coding Systems
Abbreviations:
| Category name: | Abbreviations: | Explanation: |
|---|---|---|
| 1 | 1 | very acid: substrate pH < ca. 4 (e.g. raised bog peat) |
| 2 | 2 | acid: substrate pH ca. 3.5 - 5 (e.g. rotten wood) |
| 3 | 3 | subneutral: base-poor, substrate pH ca. 4.5 - 6.5 (e.g. silicious rock affected by lime) |
| 4 | 4 | ± neutral: substrate pH ca. 6 - 7.5 (e.g. many soils in decidious forests) |
| 5 | 5 | alkaline: substrate pH > ca. 7 (e.g. limestone) |
| x | x | indifferent |
| variation | range of variation regarding the reaction value: I - small variation, II - large variation |
| Taxagroup | Number of assigned taxa / total number of taxa - percentage |
|---|---|
| Bryopsida | 123 / 213 - 57.7% |
| Marchantiopsida | 43 / 62 - 69.3% |