Mappp.co geology and wildlife sites

The Maidens

…biotopes, which are typical of an exposed rocky shore: yellow and grey lichens, Verrucaria maura, Chthamalus spp, Alaria esculenta and Laminaria digitata. The area is characterised by an upper splash zone dominated by the lichen Verrucaria maura. Many of the exposed mid-shore roc…

Porth Towyn i Borth Wen

…e stretches below the high water mark, and is characterised by the green lichen Verrucaria mucosa and the black tar lichen Verrucaria maura, along with green seaweed-dominated rockpools. The brown seaweeds channel wrack Pelvetia canaliculata and spiral wrack Fucus spiralis domina…

Arfordir Penrhyn Angle / Angle Peninsula Coast

…s amongst the upper limits of the encrustation below a band of black tar lichen Verrucaria maura, which is interspersed with patches of laver bread Porphyra sp. in areas of increased exposure. The splash zone above supports a band of yellow and grey lichens. The cliffs and bedroc…

Waterwynch Bay to Saundersfoot Harbour

…per dulse. The lichen zone at the top of the cliff consists of black tar lichen Verrucaria maura with bands of yellow and grey lichens, including Ramalina sp. in the splash zone above. Rockpools characterised by coralline algae Corallina officinalis, carragheen moss Chondrus cris…

Borth - Clarach

… sparse patches of the orange lichen Caloplaca species and the black tar lichen Verrucaria maura. Sea caves towards Clarach Bay contain the encrusting red alga Hildenbrandia rubra and patches of the velvety red alga Rhodothamniella floridula Rhodothamniella floridula. Occasional …

Glanllynnau a Glannau Pen-ychain i Gricieth

…range lichen, Xanthoria parientina, sea ivory Ramalina siliquosa and tar lichen Verrucaria maura. Below these and within the upper shore are acorn barnacles Chthamalus montagui and Semibalanus balanoides in association with bladder wrack Fucus vesiculosus on more sheltered outcro…

Ramsey / Ynys Dewi

…aliculata. Above this, the littoral fringe is dominated by the black tar lichen Verrucaria maura with patches of the green alga Prasiola stipata and occasional small pools colonised by green algae. The splash zone, which varies considerably in width around the island, is characte…

Mynydd Tir y Cwmwd a'r Glannau at Garreg yr Imbill

… lichen community of Xanthorion parietinae, Caloplaca marina and the tar lichen Verrucaria maura. The boulders around the headland and further to the east have a relatively sparse covering of bladder wrack. The nationally rare community of piddocks Barnea candida in clay is prese…

Morfa Harlech

…ftan support maritime lichen communities, with species such as black tar lichen Verrucaria maura and the orange lichens, Caloplaca marina and Xanthorion parietinae. A nationally important marine biotope, muddy gravel with the sand gaper clam Mya arenaria and polychaetes is abunda…

St. John's Point

…al sheltered bays. This site is moderately exposed with the ridges dominated by Verrucaria maura, Patella vulgata, Semibalanus balanoides and narrow bands of fucoids. Floral and faunal diversity is similar to that at St John’s Point although much narrower in distribution. The com…

Porth Dinllaen i Borth Pistyll

…orion parietinae, below which there is also a wide band of the black tar lichen Verrucaria maura. Species-rich rockpool communities with encrusting coralline seaweed and the red seaweed Corallina officinalis are found on the headland. Other rock pool types, dominated either by gr…

Pwll-du Head and Bishopston Valley

… pinnacles at the back of the shore support yellow lichens and black tar lichen Verrucaria maura. In Pwll-du Bay, wide platforms of the reef-forming honeycomb worm Sabellaria alveolata occur. These reefs often occur with a dense canopy of serrated wrack Fucus serratus and pepper …

Ynys Enlli

…nd this has been colonised by yellow and grey lichens, and the black tar lichen Verrucaria maura. Below the lichens, in areas of freshwater run-off, seaweeds such as gutweed Enteromorpha and laver Porphyra are found. The mid-shore rocks are encrusted with barnacles, limpets and o…

Dale and South Marloes Coast

… limpets, in particular where conditions are more exposed. The black tar lichen Verrucaria maura grows on the rocks and boulders at the upper end of the shore, above which a zone of yellow and grey lichens can be found. The bays that punctuate this coastline exhibit a variety of …

The Gobbins

…reas. The area is characterised by an upper splash zone dominated by the lichen Verrucaria maura. Occasional upper shore rock pools contain ephemeral species of green algae, including Enteromorpha spp. and Cladophora spp and the brown alga Chorda filum. Shallow eulittoral rock po…

Porth Ceiriad, Porth Neigwl ac Ynysoedd Sant Tudwal

…ing sea ivory Ramalina sp., Caloplaca sp., Xanthorion parietinae and tar lichen Verrucaria maura. The characteristic zonation of yellow, grey and black lichens above barnacles, limpets Patella sp. and edible mussels Mytilus edulis is present on all bedrock and stable boulders of…

Arfordir Abereiddi

…s. The uppermost parts of the shore are dominated by a zone of black tar lichen Verrucaria maura, above which yellow and grey lichens occur, sometimes rather sparsely where the bedrock is crumbling. Where exposure is increased, laver seaweed Porphyra sp. occurs in patches with bl…

Arfordir Gogleddol Penmon

…nd boulder surfaces above mean high water, with barnacles, the black tar lichen Verrucaria maura and the seaweeds channel wrack Pelvetia canaliculata and spiral wrack Fucus spiralis dominating rock surfaces immediately below. A wide band of barnacles, particularly the acorn barna…

Arfordir Niwgwl - Aber Bach / Newgale - Little Haven Coast

…such as Catenella caespitosa, encrusting red algae Hildenbrandia rubra, lichens Verrucaria mucosa and pygmy lichen, barnacles and small periwinkle Melarhaphe neritoides. The upper sand shore in these bays supports communities dominated by amphipods Bathyporeia sp. and isopods suc…

Brading Marshes to St. Helen's Ledges

…ion in plant communities. In the splash zone, just above highwater, the lichens Verrucaria maura and Lichina pygmaea are abundant. Below high water distinct communities of brown algae occur with various dominant seaweeds such as bladderwrack Fucus vesiculosus, serrated wrack Fucu…

Skomer Island and Middleholm

…-scoured cover of barnacles and bedrock or boulders. A band of black tar lichen Verrucaria maura with laver bread seaweed Porphyra sp. occurs below yellow and grey lichen bands dominated by Ramalina sp. These bands are particularly wide (up to 40 metres) on the more exposed weste…

Aber Afon Conwy

…e boulders show clear zonation of yellow and grey lichens with black tar lichen Verrucaria maura, above boulders and cobbles with broken bands of channel wrack Pelvetia canaliculata and spiral wrack Fucus spiralis to seaward along the shore towards Llys Helig Drive. Down shore of…

Glannau Tonfanau i Friog

… site are characterised by the orange lichen Caloplaca marina, black-tar lichen Verrucaria maura and small periwinkle Melarhaphe neritoides. Areas of the upper shore influenced by freshwater runoff are dominated by ephemeral green seaweeds such as Enteromorpha species and the sca…

De Porth Sain Ffraid / St Bride's Bay South

…h is an intermittent band of pygmy lichen Lichina pygmaea, the black tar lichen Verrucaria maura and then yellow and grey lichens (such as Caloplaca spp. and sea ivory Ramalina sp.) in the splash zone. Caves at the back of the beaches at Falling Cliff and Musselwick contain the r…

Killard

… and brown algae have been recorded. The upper shore is dominated by the lichen Verrucaria maura. Channelled wrack Pelvetia canaliculata grades downshore into spiral wrack Fucus spiralis, and there are successive bands of knotted wrack Ascophyllum nodosum, or winged weed Membrano…

Wig Bach a'r Glannau i Borth Alwm

…ange and grey lichens dominate the upper splash zone, with the black tar lichen Verrucaria maura covering lower rock surfaces down into the intertidal. The barnacles Chthamalus montagui and Semibalanus balanoides and limpets Patella sp. dominate upper to mid shore bedrock and bou…

Pen y Gogarth / Great Ormes Head

…pted zonation with broad bands of yellow and grey lichens, the black tar lichen Verrucaria maura, acorn barnacles Chthamalus montagui, Semibalanus balanoides and limpets Patella vulgata, and the common mussel Mytilus edulis. The western extent of the intertidal adjacent to Hornby…

Robin Hood's Bay: Maw Wyke to Beast Cliff

…cterised by complete zonation of rocky shore biotopes from the lichen dominated Verrucaria maura biotope at the top of the shores, through fucoid biotopes characteristic of moderately exposed shores Pelvetia canaliculata, Fucus spiralis, Fucus vesiculosus, F. serratusinto the kel…

Castlemartin Range

…time lichens that form prominent grey, orange and black bands. The black lichen Verrucaria maura dominates toward the cliff bases whilst the other splash zone lichens extend well up the cliff faces and inshore. Below these lichens, dense barnacle and limpet communities occur whil…

Tenby Cliffs and St. Catherine's Island

…bladder wrack Fucus vesiculosus, and spiral wrack F. spiralis. Black tar lichen Verrucaria maura occurs on both artificial substrata and natural rock, as do the yellow and grey lichens that characterise this uppermost littoral community. Allis shad Alosa alosa and twaite shad A. …

Arfordir Pen-bre / Pembrey Coast

…ores and structures such as wrecks support lichens such as the black tar lichen Verrucaria maura and acorn barnacles Austrominius modestus and Chthamalus spp. At Cefn Sidan there is a narrow band of barren, coarse sand at the base of the dunes and, below this, dry sand and decomp…

Aber Mawddach / Mawddach Estuary

…er shore, which is dominated by lichens (yellow and grey lichens and tar lichen Verrucaria maura at the top and by fucoid algae -(channel wrack Pelvetia canaliculata, egg wrack Ascophyllum nodosum and Fucus ceranoides) below. Lower rocky shore species are absent in the estuary du…

Yealm Estuary

…s a zone of yellow, grey and black lichens (including Xanthorion parietinae and Verrucaria maura). Below this is an intermittent band of channel wrack intermingled with, or replaced by (depending on the degree of shade), a turf of the seaweeds Bostrychia scorpioides and Catenella…

Fair Head and Murlough Bay

…rea as a whole is characterised by an upper splash zone dominated by the lichen Verrucaria maura. Many of the exposed mid-shore rocks are dominated by the common limpet Patella vulgata and there is a zone in the lower eulittoral dominated by the red alga false Irish moss Mastocar…

Aberarth - Carreg Wylan

…he shore, are highly mobile, heavily scoured and often barren. Black tar lichen Verrucaria maura occurs on the upper shore on more stable rock or boulders. Where there is a freshwater influence, the community of green ephemeral algae is occasionally dominated by the green algae U…

Glannau Penmon - Biwmares

…range sea lichen Caloplaca marina, with a distinct band of the black tar lichen Verrucaria maura found beneath. Shingle is found frequently at the back of the shore, and the strandline seaweed left here by the receding tide supports a population of talitrid amphipods known as san…

Glannau Porthaethwy

…pport a zone of yellow and grey lichens. Beneath this zone the black-tar lichen Verrucaria maura grows on bedrock, cobbles and pebbles, forming a wide band. A band of channel wrack Pelvetia canaliculata and spiral wrack Fucus spiralis occurs just below this level, followed by suc…

Glannau Rhoscolyn

…liquosa, black shields Tephromela atra, Xanthorion parietinae, black tar lichen Verrucaria maura, Caloplaca thallincola and Ochrolechia parella. The south-facing cliffs are dominated by barnacles, brown seaweed and red algal turfs. As wave and tide-exposure increases towards the …

Creigiau Rhiwledyn / Little Ormes Head

…w and grey lichens, below which is a nearly continuous band of black tar lichen Verrucaria maura. Acorn barnacles such as Chthamalus montagui, Chthamalus stellatus and Semibalanus balanoides occur below the lichens. Typically the seaward zonation is characterized by a nationally …

Skokholm

…ations of barnacles and limpets. Upper shores support bands of black-tar lichen Verrucaria maura, with laver seaweed Porphyra sp. where more exposed, above which a wide band of yellow and grey lichens exists, extending vertically up to 30 metres on the steeper higher cliffs of th…

Grassholm / Ynys Gwales

…addles the gradation from this barnacle and limpet zone to the black tar lichen Verrucaria maura or pygmy lichen Lichina pygmaea zones. Yellow and grey lichens occur on the upper shore around most of the island. Rockpools, mainly small and shallow, occur on the south-eastern side…

Glannau Aberdaron

…upports a wide band of yellow and grey lichens. Below this the black tar lichen Verrucaria maura dominates, with the black lichen Lichina pygmaea also occurring regularly in this zone. Below the lichens a mixture of barnacles Semibalanus balanoides and limpets Patella sp. dominat…

Map of the sites holding the search term ""Verrucaria maura""

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