Yellow and grey lichens on supralittoral rock

English name: Yellow and grey lichens on supralittoral rock

Description (English)

Vertical to gently sloping bedrock and stable boulders in the supralittoral (or splash zone) of the majority of rocky shores are typically characterised by a diverse maritime community of yellow and grey lichens, such as Xanthoria parietina, Caloplaca marina, Lecanora atra and Ramalina spp. The black lichen Verrucaria maura is also present, but usually in lower abundance than in the littoral fringe zone. In wave exposed conditions, where the effects of sea-spray extend further up the shore, the lichens generally form a wide and distinct band. This band then becomes less distinct as wave exposure decreases, and in sheltered locations, cobbles and pebbles may also support the biotope. Pools, damp pits and crevices in the rock are occasionally occupied by winkles such as Littorina saxatilis and halacarid mites may also be present.
Situation: This biotope is usually found at the top of the shore, immediately above a zone of the black lichen V. maura (B3.1131, B3.1132). Above the band of B3.111, and occasionally in crevices in the rock alongside the lichens, terrestrial plants such as the thrift Armeria maritima and other angiosperms often occur. In sheltered areas the transition from B3.111 to B3.1132 is often indistinct and a mixed zone of B3.111 and B3.1132 may occur. In estuaries, this biotope is often restricted to artificial substrata such as sea defences.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code B3.111

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Flowering Plants Armeria maritima
Invertebrates Littorina saxatilis
Species scientific name English common name Species group
Armeria maritima Flowering Plants
Littorina saxatilis Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
Marine Habitat Classification Britain/Ireland 0405 LR.FLR.Lic.YG Yellow and grey lichens on supralittoral rock source
CORINE Land Cover 3.3.2. Bare rock n/a
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 200410 B3.111 Yellow and grey lichens on supralittoral rock same
EUNIS Habitat Classification 200308 B3.111 Yellow and grey lichens on supralittoral rock same
EUNIS Habitat Classification 200202 B3.111 Yellow and grey lichens on supralittoral rock same
EUNIS Habitat Classification 199910 B3.111 Yellow and grey lichens on supralittoral rock same
MNCR BioMar 97.06 (Britain & Ireland) LR.L.YG Yellow and grey lichens on supralittoral rock same
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