Red list of endangered plant communities in Germany (Rennwald 2000)
The Red List of Threatened Plants companies in Germany (Rennwald 2000) contains all occurring in Germany plant communities . For each plant community its degree of endangerment (= category), its formation affiliation , its synsystematic rank, its scientific name and its German name is recorded. The basis of this list was the complete directory of the plant communities occurring in Germany.
Classification
Hazard categories
Hazard categories were defined.
- 0 = extinct or lost
- 1 = Critically Endangered
- 2 = Endangered
- 3 = endangered
- G = risk to be assumed
- R = extremely rare
- V = Decreasing, type of warning list
- * = currently not endangered
- D = Insufficient data on distribution and exposure
Formation affiliation
- I. = Aquatic plant communities
- II. = Rock societies ( strip fern societies of the crevices and wall joints )
- III. = Pioneer vegetation ( therophyte-rich pioneer vegetation (with the exception of the immediate coastal area) )
- IV. = Reed beds and sedge beds ( eutraphent beds and large sedge beds )
- V. = spring and moor associations ( spring and fen associations , raised moor Schlenken and Bulten associations )
- VI. = Beach and dune communities ( sea beach, flush fringes , dune and salt marsh communities (with the exception of the vegetation types on gray and brown dunes) )
- VII. = Lawn companies and business grassland ( impact and flood lawn, turf companies in the industry grassland, gray dunes, semi-dry grasslands and skimmed lawn, turf high mountain )
- VIII. = Ruderale perennial vegetation ( nitrophytic, ruderal perennial vegetation, semi-ruderal semi-arid grassland, fringing and leaning societies, riparian perennial societies )
- IX. = Dwarf shrub communities and bristle grass lawns
- X. = bushes and pre-forests ( bushes and pre-forests, anthropogenic woody communities )
- XI. = Forest communities
rank
- FOR = formation
- KLA = class
- ORD = order
- VRB = association
- ASS = association
evaluation
An overview of the number of plant communities in the individual hazard categories by region could be obtained from this red list. Around half of all plant communities in Germany are at risk.
Disappeared
The Lein-Lolch Society, a wild herb vegetation of the flax culture, and the dwarf cattail society, a bank society that fell victim to a lack of river dynamics, have either disappeared or disappeared. The disappearance of other societies cannot be proven because no vegetation photographs were previously taken for them and therefore no data are available.
Threatened to disappear
Water, moor and lawn communities that are particularly sensitive to environmental influences, such as some chandelier algae communities , wire sedge swing lawns or tuberous thistle pipe grass lawns, are threatened with disappearing.
Endangered
Of the 577 lowland societies and 653 hilly and mountainous societies, around 50% are currently at risk. In contrast, only 25% of the 231 Alpine societies are at risk.
Extremely rare
This category includes plant communities of the Alps, especially those that occur in high altitudes on acid parent rock.
Warning list
Protective measures were necessary and in some cases already implemented for 30 companies.
Harmless
A third of the plant communities in Germany are considered safe. In the Alps even half.
Lists of the plant communities of the individual formations
- Formation I: List of aquatic plant communities in Germany
- Formation II: List of strip fern societies in crevices and wall joints in Germany
- Formation III: List of therophyte-rich pioneer vegetation (with the exception of the immediate coastal area) in Germany
- Formation IV: List of eutraphent reed beds and Großseggenriede in Germany
- Formation V: List of the spring and fen societies, raised bog Schlenken and Bulten societies in Germany
- Formation VI: List of the sea beach, flush fringes, dune and salt marsh communities (with the exception of the vegetation types on gray and brown dunes) in Germany
- Formation VII: List of tread and flood lawns, lawn communities of commercial grassland, gray dunes, semi-dry lawns and grasslands, high mountain lawns in Germany
- Formation VIII: List of nitrophytic, ruderal perennial vegetation, semi-ruderal semi-arid grassland, fringing and leaning societies, riparian perennial societies in Germany
- Formation IX: List of dwarf shrub societies and grass turf in Germany
- Formation X: List of bushes and pre-forests, anthropogenic woody communities in Germany
- Formation XI: List of forest communities in Germany
Individual evidence
- ↑ Red List of Plant Associations pdf Accessed on September 17, 2018
- ↑ Red List of Plant Associations bfn.Retrieved September 17, 2018
- ↑ Risk categories Accessed on September 17, 2018
- ↑ Risk criteria Accessed on September 17, 2018
- ↑ Classification. Accessed on September 17, 2018
- ↑ Number. Accessed on September 17, 2018
- ↑ Red List of Plant Associations bfn.Retrieved September 17, 2018