County Wildife Site Criteria for Cornwall Appendices

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LOCAL LOWLAND MEADOWSGeneral DescriptionThe lowland meadows that are considered to be of particular conservation importance in Britain area very small sample of all the grasslands that are found in Cornwall. Of course, the greater part of thefarmland landscape is dominated by stands that might be characterised as MG7 or the floristicallyimpoverished forms of MG6. There has traditionally been widespread agreement that neither ofthese are of any particular nature conservation interest, but that view is now challenged. Certainly ata local level we should consider the richer elements of MG6 such as the Iris pseudacorus variant thatso enriches the damper bottoms of so much of our farmland. So too should we look at the richervariants of MG7e. Both of these have been highlighted at a national level in a recent report on theEuropean context of British Lowland grasslands (Rodwell et al 2007).Moreover, there has also been an historical and deeply rooted opinion that many grasslands that areclearly more diverse and hold a range of flora and fauna which is of some significance should not beaccorded much significance. We may particularly think of the MG1 Arrhenatherum grasslands thattypically occupy so many roadside verges. They have added floristic interest together with enhancednumbers of butterflies, other invertebrates and small mammals.This LHT also brings together other grasslands such as the floristically impoverished mesotrophicgrasslands classified as MG9 and MG10 which are both typical of permanently moist sites most oftenfound throughout the lowlands. Neither of them is often viewed as much more than unproductiveagricultural land, but their position in the landscape often makes them part of a transition betweengrassland to swamp. More than that, they may hold conspicuous stands of buttercups with smallernumbers of other flowers such as ladies smock. Though these are not rare or scarce species of highbotanical interest, they clearly mark the grasslands as of wildlife interest and they clearly of enhancedthe character of the local landscape.National ContextRelatively recent survey findings in Britain reveal an estimated extent of less than 15 000 ha ofspecies-rich neutral grassland surviving today in Britain. But that figure only refers to a restrictedrange of grasslands and it is clear that a review of what lowland meadows are of some nationalsignificance needs to be reviewed. In particular, a review of the importance of wetter pastures andmeadows is urgently required.There appears to be no understanding of the total area of this suite of grassland vegetationcommunities in Britain.Cornwall ContextThere are a large number of stretches of MG1 in roadside verges and there must be thousands ofsmall patches of this grassland scattered throughout the county. A review of this resource is neededbefore any proper assessment of its wildlife importance can be made. In particular we need tounderstand the number of sub-communities that occur here, where they are found and what thehistory and management of these grasslands has been. A provisional estimate is that there may be500 - 1000 ha of MG1 in the county.The valley bottoms of many farms contain wet areas that may be a MG6 variant or perhaps thegrassland vegetation communities of MG9 and MG10. Once again, a review of the resource is neededbefore a considered assessment can be made, but there may something like 100 - 500 ha in thecounty.Area of PHT in Cornwall (ha): estimated 600-1500For this habitat we will take all areasAppendix 5 - Information Relating to Local Habitat Types.County Wildlife Sites Criteria
LOCAL LOWLAND MEADOWS: SourcesDataset Description Owner Role in Inventory Access NotesAerial photos ofCCCHeld at CCCCornwallCounty WildlifeSite filesCWT ReservefilesEN local teamSSSI filesGrasslandlandcover on GISNT site surveyreportsDigital photographstaken in 2000,together with printstaken in 1995/6Reports held in paperfiles. (1980-1988)ERCCISCan be used toidentify up-to-dateboundaries.Useful as a back-up toPhase 1 and does holdsome additionalinformation, but it isout-of-date.Management Reports CWT Will hold goodinformation, but willbe very local.Paper information onSSSIsMaps of grasslanddrawn from acombination ofreferences and API(1996)Reports on surveys ofNT land. (1979-2001)ENERCCISNTWill hold goodinformation, but willbe very local.Tends to be asummary of othersources and is usefulfor that reason. It isalso a useful basis towork from whiledigitising.Will hold goodinformation, but willbe very local.Phase 1 maps Paper information EN Rather out-of-dateand of variable quality,but does give aninsight into wheregrasslands ofconservation interestmay be located.ERCCISCWTENERCCISERCCISERCCISFairly good qualityinformation.Good qualityinformationAppendix 5 - Information Relating to Local Habitat Types.County Wildlife Sites Criteria
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HeadingCounty Wildife SiteCriteria
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PENWITHP/K 1P/K 2P3Hayle Estuary an
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K17K18K19K20K21K22K23K24K25K26K/P 2
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R5R6R7R8R9R10R11R12R13R 15.2R/CK 16
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CN/NC 8CN/NC 9CN 10CN 11CN 12CN 13C
Page 12 and 13:
NC/CN 7 NNC/CN 7 SNC/CN 8NC/CN 9NC
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Appendix 2The Selection of Local Si
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However, it is not a significant co
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Where any area has less than ½ of
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West Looe to Watergatehttp://cwtdev
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Appendix 4Information Relating to P
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Upland flushes, fens and swamps PHT
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COASTAL SALTMARSH: SourcesDataset D
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COASTAL SAND DUNES: SourcesDataset
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COASTAL VEGETATED SHINGLE: SourcesD
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ESTUARINE ROCKY HABITATS PHTGeneral
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INTERTIDAL MUDFLATS PHTGeneral Desc
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MAERL BEDS PHTGeneral DescriptionMa
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MUD HABITATS IN DEEP WATER PHTGener
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Sabellaria alveolata REEFS: Sources
Page 42 and 43:
SALINE LAGOONS: SourcesDataset Desc
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SEAGRASS BEDS: SourcesDataset Descr
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SUBTIDAL SANDS AND GRAVELS PHTGener
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LOWLAND MIXED DECIDUOUS WOODLAND PH
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LOWLAND MIXED DECIDUOUS WOODLAND: C
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TRADITIONAL ORCHARDS PHTGeneral Des
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UPLAND MIXED ASHWOODS PHTGeneral De
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UPLAND MIXED ASHWOODS: CommentsData
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UPLAND OAKWOOD PHTGeneral Descripti
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UPLAND OAKWOOD: CommentsData Source
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WET WOODLAND PHTGeneral Description
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WET WOODLAND: CommentsData SourcesA
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WOOD-PASTURE AND PARKLAND PHTGenera
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The National DefinitionGoodReliabil
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ARABLE FIELD MARGINS PHTGeneral Des
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COASTAL AND FLOODPLAIN GRAZING MARS
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LOWLAND MEADOWS: SourcesDataset Des
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LOWLAND CALCAREOUS GRASSLAND PHTGen
Page 78 and 79: LOWLAND CALCAREOUS GRASSLAND: Comme
Page 80 and 81: LOWLAND DRY ACID GRASSLAND: Sources
Page 82 and 83: LOWLAND HEATHLAND PHTGeneral Descri
Page 84 and 85: LOWLAND HEATHLAND: CommentsData Sou
Page 86 and 87: UPLAND HEATHLAND: SourcesDataset De
Page 88 and 89: LOWLAND FENS PHTGeneral Description
Page 90 and 91: PURPLE MOOR GRASS AND RUSH PASTURES
Page 92 and 93: PURPLE MOOR GRASS AND RUSH PASTURES
Page 94 and 95: REEDBEDS: SourcesDataset Descriptio
Page 96 and 97: UPLAND FLUSHES, FENS AND SWAMPS: po
Page 98 and 99: BLANKET BOG: SourcesDataset Descrip
Page 100 and 101: EUTROPHIC STANDING WATER PHTGeneral
Page 102 and 103: MESOTROPHIC LAKES PHTGeneral Descri
Page 104 and 105: OLIGOTROPHIC AND DYSTROPHIC LAKES P
Page 106 and 107: PONDS PHTGeneral DescriptionThis PH
Page 108 and 109: RIVERS PHTGeneral DescriptionThe Ri
Page 110 and 111: OPEN MOSAIC HABITATS ON PREVIOUSLY
Page 112 and 113: This appendix provides a more detai
Page 114 and 115: LOCAL ANCIENT WOODLANDSGeneral Desc
Page 116 and 117: LOCAL ANCIENT WOODLANDS: CommentsDa
Page 118 and 119: LOCAL MIXED ASHWOODS: SourcesDatase
Page 120 and 121: LOCAL PARKLANDSGeneral DescriptionT
Page 122 and 123: The National DefinitionGoodReliabil
Page 124 and 125: LOCAL BOUNDARIES: SourcesDataset De
Page 126 and 127: LOCAL FLOODPLAIN GRASSLANDS: Source
Page 130 and 131: LOCAL LOWLAND MEADOWS: CommentsData
Page 132 and 133: UPLAND DRY ACID GRASSLAND: SourcesD
Page 134 and 135: LOCAL PONDSGeneral DescriptionThe n
Page 136 and 137: Appendix 6Information Relating to S
Page 138 and 139: Monotropa hypopitysMuscari neglectu
Page 140 and 141: FRESHWATER ALGAE, FUNGI AND LICHENS
Page 142 and 143: BRYOPHYTESThese criteria are direct
Page 144 and 145: *Calliergon sarmentosum 50**Calypog
Page 146 and 147: Pottia commutata = Microbryum daval
Page 148 and 149: Moths:Acronicta psi Grey DaggerAcro
Page 150 and 151: BUTTERFLIESBAP species and butterfl
Page 152 and 153: DRAGONFLIES AND DAMSELFLIES (ODONAT
Page 154 and 155: FISHGainey, in CISFBR (2009), state
Page 156 and 157: Sites with significant Amphibian as
Page 158 and 159: Turdus torquatus torquatus Ring Ouz
Page 160 and 161: Table of Thresholds for wintering w
Page 162 and 163: Other MammalsCornwall BAP Priority
Page 164 and 165: Shirt, D.B. (Ed.) (1987) British Re
Page 166 and 167: Tick when Process CompleteProtocol
Page 168 and 169: Site Contraction/DeletionDetails of
Page 170: Heading
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County Wildife Site Criteria for Cornwall Appendices

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