County Wildife Site Criteria for Cornwall Appendices

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Turdus torquatus torquatus Ring OuzelVanellus vanellus LapwingSpecies listed on Schedule 1 of the Wildlife & Countryside Act 1981 (asamended)Species listed on Schedule 1 are generally rare breeding species. County Wildlife Sitenotification is unlikely to increase the protection for the majority of species. Moreover, withcertain species it would be impractical to keep any site system up-to-date. For example,there are about 400 pairs of barn owls in the county. Unless sites were continuallymonitored, the site system would soon have sites without barn owls and a number ofbreeding sites which were undesignated. Listing on Schedule 1 is therefore not a primaryreason for designation of CWS.Species listed on Annex I of the EC Birds Directive (2009)As for BAP species, there are a number of Annex I species that are not site specific andothers that are. Where a species is site specific and a significant population is present, sitenotification would be sensible.Birds of Conservation Concern (Eaton et al., 2009)As for BAP species, there are a number of species of conservation concern that are not sitespecific and others that are. Where a species is site specific and a significant population ispresent, site notification may be an appropriate way to aid the species’ conservation.Significant populations at the county level (based on wintering waterbirdcriteria)These criteria were initially developed to allow a site of county importance for birds to beidentified by taking into account the national and local populations of species, along with therange and number of species present. Detailed thresholds for designating sites have beendeveloped as a result of work undertaken on wintering waterbirds on coastal floodplain andgrazing marsh (McCartney, P., 2005). This reference contains full information on thebackground and rationale behind the thresholds summarised here.ThresholdsFor each bird species we propose that there should be a population (a threshold) which willautomatically afford any site the status of county importance. This will be derived both fromthe national and from the Cornwall population.A wetland site in Britain is considered to be nationally important if it regularly holds 1% ofthe estimated British population of one species or subspecies of waterbirds. In theproduction of thresholds for Cornwall we will provisionally take the threshold for thecounty to be 20% of the national threshold (i.e. 0.2% of the national population). However,we also wish to take into account that there are some species that are scarce withinCornwall. We therefore provisionally take a second threshold to be 20% of the countypopulation.We will take whichever is the lower (0.2% of the national population or 20% of the countypopulation), to be the A threshold. We propose that any species that reaches the A threshold at anysite in the county should make the site of county importance.The derivation of the threshold used in Cornwall is laid out in the table below. The figureused for qualification (the A threshold) is in bold.Appendix 6 – Species Evaluation in CornwallCounty Wildlife Sites Criteria
Table of National and County Thresholds for Wintering WaterbirdsNationalthreshold(1% of thenationalpopulation)20% of thenationalthreshold (0.2%of the nationalpopulation)Countypopulation20% of thecountypopulationLittle Egret 20est? 4est? 350 70Grey Heron 400est? 80est? 500 100Mute Swan 260 52 350 70Wigeon 2800 560 3500 700Teal 1400 280 3000 600Mallard 5000 1000 3000 600Pintail 280 56 35 8Shoveler 100 20 100 20Moorhen 2150 430 1800 360Coot 1100 220 400 80Oystercatcher 3600 720 1500 300Golden Plover 2500 500 15 000 3000Lapwing 20 000 4000 20 000 4000Snipe ? ? 20 000 4000Black-tailed Godwit 150 30 250 50Curlew 1500 300 2500 500Redshank 1100 220 1000 200Green Sandpiper ? ? 20 4Common Sandpiper ? ? 10 2Black-headed Gull 19 000 3800 45 000 9000Herring Gull 4500 900 20 000 4000? indicates that the population size is not accurately known.est indicates that we have estimated the national figures for Little Egret and Grey HeronCombinations of species on one siteThere is rarely just one species on a site and it might be that there are several speciespresent in moderate numbers that do not meet the A threshold, but are neverthelesspresent in such numbers that the site is clearly of significant nature conservation importance.To accommodate this view we propose further B, C and D thresholds which are related in afixed way to the A threshold. B threshold: 50% of the A threshold C threshold: 20% of the A threshold D threshold: 10% of the A thresholdAppendix 6 – Species Evaluation in CornwallCounty Wildlife Sites Criteria
Page 1 and 2:
HeadingCounty Wildife SiteCriteria
Page 3 and 4:
PENWITHP/K 1P/K 2P3Hayle Estuary an
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K17K18K19K20K21K22K23K24K25K26K/P 2
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R5R6R7R8R9R10R11R12R13R 15.2R/CK 16
Page 10 and 11:
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
Page 22 and 23:
Appendix 4Information Relating to P
Page 24 and 25:
Upland flushes, fens and swamps PHT
Page 26 and 27:
COASTAL SALTMARSH: SourcesDataset D
Page 28 and 29:
COASTAL SAND DUNES: SourcesDataset
Page 30 and 31:
COASTAL VEGETATED SHINGLE: SourcesD
Page 32 and 33:
ESTUARINE ROCKY HABITATS PHTGeneral
Page 34 and 35:
INTERTIDAL MUDFLATS PHTGeneral Desc
Page 36 and 37:
MAERL BEDS PHTGeneral DescriptionMa
Page 38 and 39:
MUD HABITATS IN DEEP WATER PHTGener
Page 40 and 41:
Sabellaria alveolata REEFS: Sources
Page 42 and 43:
SALINE LAGOONS: SourcesDataset Desc
Page 44 and 45:
SEAGRASS BEDS: SourcesDataset Descr
Page 46 and 47:
SUBTIDAL SANDS AND GRAVELS PHTGener
Page 48 and 49:
LOWLAND MIXED DECIDUOUS WOODLAND PH
Page 50 and 51:
LOWLAND MIXED DECIDUOUS WOODLAND: C
Page 52 and 53:
TRADITIONAL ORCHARDS PHTGeneral Des
Page 54 and 55:
UPLAND MIXED ASHWOODS PHTGeneral De
Page 56 and 57:
UPLAND MIXED ASHWOODS: CommentsData
Page 58 and 59:
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
Page 74 and 75:
LOWLAND MEADOWS: SourcesDataset Des
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LOWLAND CALCAREOUS GRASSLAND PHTGen
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LOWLAND CALCAREOUS GRASSLAND: Comme
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LOWLAND DRY ACID GRASSLAND: Sources
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LOWLAND HEATHLAND PHTGeneral Descri
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LOWLAND HEATHLAND: CommentsData Sou
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UPLAND HEATHLAND: SourcesDataset De
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LOWLAND FENS PHTGeneral Description
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PURPLE MOOR GRASS AND RUSH PASTURES
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PURPLE MOOR GRASS AND RUSH PASTURES
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REEDBEDS: SourcesDataset Descriptio
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UPLAND FLUSHES, FENS AND SWAMPS: po
Page 98 and 99:
BLANKET BOG: SourcesDataset Descrip
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EUTROPHIC STANDING WATER PHTGeneral
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MESOTROPHIC LAKES PHTGeneral Descri
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OLIGOTROPHIC AND DYSTROPHIC LAKES P
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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 128 and 129: LOCAL LOWLAND MEADOWSGeneral Descri
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 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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