County Wildife Site Criteria for Cornwall Appendices

COASTAL VEGETATED SHINGLE: SourcesDataset Description Owner Role in Inventory Access NotesOS mapsMaps showing shinglebeaches together withMHWOS Can be used to identifypossible boundaries.Held at CCCCounty WildlifeSite filesEN local team SSSIfilesNT site surveyreportsReports held in paperfiles. (1980-1988)Paper information onSSSIsReports on surveys ofNT land. (1979-2001)ERCCISENNTUseful as a back-up,but not likely to be ofsignificant use.Could hold significantinformationCould hold significantinformationERCCISENERCCISGood qualityinformationGood qualityinformation where itexists: e.g. Loe BarPhase 1 maps Paper information EN ERCCIS Poor qualityERCCIS speciesERCCISERCCIS Good qualitydatabaseinformation.An electronic recordof the species ofCornwall inc. ca 1million flora recordsCOASTAL VEGETATED SHINGLE: CommentsUsing certaincharacteristic speciesto identify possiblesites of the PHTData SourcesThe ERCCIS speciesdatabaseNational Trust (NT)reportsThe National DefinitionPoorReliability of PHTInterpretationPoorCommentThe species database contained comprehensive species lists forCornwall.There was one NT report for Loe Bar that contained detailedmaps.CommentThe definition is provisional and inadequate, forcing us to definethe habitat and methodology for ourselves.Local BAP VariationNone significant, because good definitions do not exist.ExplanationThe definition of this PHT relies on general statements that arenot precise. There is no detailed NVC description and only avague description of the species to look for. This includes SeaBeet Beta vulgaris which is too widespread to be used in anysearch for PHT. Accordingly we have expanded the definition inthe following way.We have considered that we should try to find examples of theNVC communities SD1 and SD2 and have followed the short listof characteristic species given in the JNCC Report No 270.For SD1 the main species included in the list comprised Sea-kaleCrambe maritima, Yellow Horned-poppy Glaucium flavum and SeaPea Lathyrus japonicus; Curled Dock Rumex crispus is toowidespread to be used for this kind of search. Associatedspecies that were especially useful species in confirming thenature of the habitat were Sea Beet Beta vulgaris ssp. maritima,Biting Stone-crop Sedum acre, Thrift Armeria maritima and seacampion Silene uniflora. Sea sandwort, though preferential forthis community, was excluded to distinguish the perennialvegetation of stony banks from the annual vegetation of driftlines habitat where it is a co-dominant species.For SD2 we have followed the short list of characteristic speciesgiven in the JNCC Report No 270. The species list of indicatorspecies that comprised the search included Babington’s oracheAppendix 4 - Information Relating to Priority Habitat TypesCounty Wildlife Sites Criteria