St Nectan's Glen

Site of Special Scientific Interest · 50.6645, -4.7183

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
SX079885 Favourable 3.29 2013-12-11

Climate exposure

This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.

Coastal

Coastal habitats are exposed to sea-level rise and storm erosion. Where hard sea defences sit behind them, there's nowhere landward to retreat to — a squeeze that keeps compressing the habitat no matter how well it's managed.

Geology & landscape

Geological Period: Devonian

Landscape processes: Coastal, Fluvial

Description

St. Nectan’s Glen SSSI Description A steep sided wooded valley near to the North Cornwall coast some two kilometres to the east of Tintagel. The valley has been incised into Upper Devonian slates forming a prominent waterfall at St Nectan’s Kieve. The site is of particular importance as the locality of one of the internationally rare plant species given special protection under Schedule 8 of the Wildlife and Countryside Act, 1981. The damp wooded valley also supports a rich bryophyte flora including the uncommon liverworts Jubula hutchinsiae and Trichocolea tomentella and the mosses Fissidens curnovii and Fissidens osmundoides. Dippers Cinclus cinclus frequently nest amongst the rocks adjacent to the waterfall. The rare plant and bryophyte species require the retention of a damp shaded habitat hence the adjacent streams and woodland need to be carefully managed to ensure that this environment is maintained.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
dipper Cinclus cinclus NT (Breeding) bird-dipper cinclidae
Hutchin's hollywort Jubula hutchinsiae LC liverwort jungermanniales
handsome woolywort Trichocolea tomentella LC liverwort jungermanniales
Curnow's pocket moss Fissidens curnovii Not listed in GB list moss dicranales
purple stalked pocket moss Fissidens osmundoides LC moss dicranales