Turmennan ASSI
| Site No | ASSI 148 |
|---|---|
| Area | 14.83 (ha) |
| Declared Date | 19/05/1999 |
| Confirmed Date | 27/10/1999 |
| County | Down |
| Council(s) | Down DC |
| Keywords | Fen, Invertebrate Assemblage |
Turmennan consists of a valley mire, which is in a transitional stage between fen and bog. It supports a
wide range of plant communities, ranging from swamp to a variety of fen types and wet grasslands.
Small pockets of wet heath and scrub further enhance the scientific interest of the area.
The diversity of wetland habitats supports a rich invertebrate community with a number of notable Odontata
(Dragonflies and Damselflies) and aquatic Coleoptera (water beetles).
The fen communities range from slightly base-rich to markedly acidic which is partly related to past patterns of peat cutting. Sedges dominate the sward with a variety of associated herbs depending on local edaphic conditions. A carpet of brown mosses dominated by Calliergon cuspidatum and Calliergon cordifolium occurs beneath the more base-rich fen with the more acidic areas characterised by Sphagnum bog-mosses.
Notable plants include marsh St John's-wort, floating club-rush and least bur-reed.
Site Related Documents
Site map (.PDF 920Kb)
, Citation document (.PDF 133Kb) and Views about Management document (.PDF
