It leads to different vegetation such as fen or poor fen.

This might be regarded either as a kind of dune slack or as a type of poor fen.

Poor fen is usually grazed by wild animals or livestock, which prevent ecological succession into wet woodland.

The raised bog dome is surrounded by cut-over bog with poor fen and birch woodland.

Poor fen is found where the ground is permanently wet with nutrient-poor water which is somewhat acidic.

Poor fen is defined in the NVC as a Carex rostrata - Potentilla palustris community.

A poor fen (also known as transitional bog, transitional mire or sedge mire) is a natural wetland habitat, consisting of dense low growth of small sedges and other plants.

Hulme and Blyth (1984) recognise a kind of poor fen from Harris and Lewis which is dominated by Menyanthes but also contains Carex limosa and luncus bulbosus.

Poor fen is intermediate between the taller vegetation of fen, which occurs where the water is much less acidic, and the short, mossy vegetation of bog, which is even more acidic.

The raised bog which covers most of the site contains the full range of characteristic vegetation and structural features associated with this type of habitat and is surrounded by cut-over bog with poor fen.

Around the shores the formation of transitional bogs and raised bogs is taking place.

The site is listed in the Inventory of Raised and Transitional Bogs of National Importance.

A poor fen (also known as transitional bog, transitional mire or sedge mire) is a natural wetland habitat, consisting of dense low growth of small sedges and other plants.

Different types of bogs can affect the mummification process differently: raised bogs best preserve the corpses, whereas fens and transitional bogs tend to preserve the skeleton rather than the soft tissue.

In the area of the pass summit there are mainly fens with some smaller transitional mires and raised bogs.

A poor fen (also known as transitional bog, transitional mire or sedge mire) is a natural wetland habitat, consisting of dense low growth of small sedges and other plants.

A poor fen (also known as transitional bog, transitional mire or sedge mire) is a natural wetland habitat, consisting of dense low growth of small sedges and other plants.