Securing Biodiversity in Breckland - European Commission

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Species recorderA species recorder and/or determiner were unavailable for approximately 20% of records, manyobtained from the ISR. This prevented the validation of some uncertain species records.Species lists and validationThe total number of species and total species list were collated from all the valid records. From this,all species with a national or international conservation status were identified to create a list ofBreckland conservation priority species (see below for more information regarding designations).Local Records Centres receive validated species records from county recorders. In addition, recordsreceived from other recorders are passed to county recorders for validation. This validation is thefoundation of how local record centres work and ensures the data are fit for purpose. However, thisprocess is not completely failsafe. It was therefore important to validate the priority list of species,and to filter inaccurate or infeasible records. The first draft of the Breckland conservation priorityspecies list was shown to species experts at the Species and Habitat Workshop held at UEA on 5 thOctober 2009, with separate lists examined for all groups of taxa. Later iterations of the Brecklandconservation priority species list were further validated by circulation to a number of experts whowere asked to comment on any records that they considered suspect, or to provide additionalspecies that they knew to occur.Following validation, forty-seven species were removed having been identified as not occurring inthe Breckland area, as being incorrect identifications, were considered to be garden escapes,recently introduced or deliberately planted species (Table 7).Eleven species were identified by experts as occurring in Breckland and being of importance(priority or Breckland specialists), but for which there were no records available. These specieswere included in the priority lists.56
Table 7. Species for which records were excluded, showing the source and reasons for exclusion* a number of other species are recorded in Breckland as accidentals or vagrants and with no regular orpassing residence are not of management concern in BrecklandGroup Species Source of validation Reason for exclusionConifer Pinus sylvestris BBA Widely planted, native status uncertainFlowering plant Buxus sempervirens BBA Widely planted as game coverFlowering plant Calamagrostis scotica Ian Simper Most likely misidentificationFlowering plant Centaurea calcitrapa Ian Simper Not native to BrecklandFlowering plant Clinopodium menthifolium Ian Simper Not native to BrecklandFlowering plant Colchicum autumnale Neal Armour-Chelu Not native to Breckland, gardened speciesFlowering plant Meconopsis cambrica Ian Simper Not native to BrecklandFlowering plant Melittis melissophyllum Ian Simper Not native to Breckland, gardened speciesFlowering plant Polemonium caeruleum Ian Simper Not native to Breckland, gardened speciesFlowering plant Saxifraga hypnoides Ian Simper Not native to Breckland, gardened speciesFlowering plant Teucrium chamaedrys Ian Simper Not native to Breckland, gardened speciesCrustacean Palinurus elephas BBA Marine speciesArachnid Callilepis nocturna Paul Lee Most likely misidentificationArachnid Talavera petrensis Paul Lee Most likely misidentificationColeoptera Melanotus punctolineatus Duncan Sivell Spurious recordDiptera Cheilosia carbonaria Ivan Perry Most likely misidentificationDiptera Cheilosia mutabilis Ivan Perry Rejected during validationDiptera Dorylomorpha haemorrhoidalis Ivan Perry Most likely misidentificationDiptera Erioptera meigeni Ivan Perry Most likely misidentificationDiptera Fannia umbratica Ivan Perry Rejected – Scottish speciesDiptera Gimnomera tarsea Ivan Perry Rejected during validationDiptera Graphogaster brunnescens Ivan Perry Most likely misidentificationDiptera Hilaria psedochorica Ivan Perry Most likely misidentificationDiptera Meiosimyza laeta Ivan Perry Most likely misidentificationDiptera Melangyna guttata Ivan Perry Rejected during validationDiptera Melieria picta Ivan Perry Most likely misidentificationDiptera Orellia falcate Ivan Perry Rejected during validationDiptera Paroxyna producta Ivan Perry Rejected during validationDiptera Pegohylemyia apiciseta Ivan Perry Most likely misidentificationDiptera Platyceirus podagratus Ivan Perry Most likely misidentificationDiptera Ramonda prunaria Ivan Perry Rejected during validationDiptera Renocera striata Ivan Perry Most likely misidentificationDiptera Rhadiurgus variabilis Ivan Perry Most likely misidentificationDiptera Tabanus glaucopis Ivan Perry Rejected during validationDiptera Tipula holoptera Ivan Perry Rejected during validationDiptera Tipula pseudovariipennis Ivan Perry Rejected during validationHeteroptera Adelphocoris seticornis Bernard Nau Rejected during validationHeteroptera Anthocoris viscid Bernard Nau Rejected during validationHeteroptera Halticus saltator Bernard Nau Rejected during validationHeteroptera Micronecta minutissima Bernard Nau Rejected during validationHeteroptera Myrmedobia coleoptrata Bernard Nau Rejected during validationHeteroptera Rhopalus (Rhopalus) rufus Bernard Nau Rejected during validationLepidoptera Idaea dilutaria BBA (Norfolk Moths) Most likely a misidentificationReptile Lacerta agilis Neal Armour-Chelu Outside historically validated species range57
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Securing Biodiversityin BrecklandGu
Page 3 and 4:
Commissioning GroupNeil Featherston
Page 5 and 6: Wind-blown sand guild .............
Page 7 and 8: milder winters and increased winter
Page 9 and 10: Creating broad ruderal and disturbe
Page 11 and 12: Introduction“Few of the lowland d
Page 13 and 14: Inland DunesThe 1km wide dune and b
Page 15 and 16: Following the Black Death of the mi
Page 17 and 18: The area of grass-heath declined by
Page 19 and 20: PingosPingos are ground water fed p
Page 21 and 22: Breckland Conservation and the Need
Page 23 and 24: SSSI. The Breckland Forest SSSI cit
Page 25 and 26: The Breckland Biodiversity Audit ha
Page 27 and 28: The Breckland bio-geographic region
Page 29 and 30: polygons of alternating calcareous
Page 31 and 32: quality calcareous fen communities
Page 33 and 34: Figure 2. The extent of Breckland,
Page 35 and 36: Table 3. Grass-heath vegetation in
Page 37 and 38: The Conservation Resource: Designat
Page 39 and 40: All other SSSIs are less than 600 h
Page 41 and 42: GrasslandHeathWoodlandWetlandFlowin
Page 43 and 44: Calcicolous grasslandsShingle, stra
Page 45 and 46: Figure 4. Location of designated si
Page 47 and 48: Figure 6. Location of Plantlife’s
Page 49 and 50: Figure 7. Locations of stations in
Page 51 and 52: Scheme for Stilt & Stalk Flies, Dra
Page 53 and 54: Table 6. Rare vascular plant specie
Page 55: Recommendation BTO be commissioned
Page 59 and 60: Table 8. Descriptions of Red Data B
Page 61 and 62: If the sub-species was designated b
Page 63 and 64: Collating and Synthesising Species
Page 65 and 66: Table 11. Published, documentary an
Page 67 and 68: Baron de Worms, C.G.M. (1953) Colle
Page 69 and 70: Guild AnalysisA number of habitat a
Page 71 and 72: The specific questions for the work
Page 73 and 74: Findings of the Breckland Biodivers
Page 75 and 76: Recording Effort and CoverageThere
Page 77 and 78: Butterfly Conservation (Suffolk) 17
Page 79 and 80: Norfolk Biodiversity InformationSer
Page 81 and 82: Figure 11. Number of taxonomic grou
Page 83 and 84: difference is partly attributable t
Page 85 and 86: There were Breckland specialist spe
Page 87 and 88: Figure 13. Proportion of Breckland
Page 89 and 90: Distribution of Breckland Conservat
Page 91 and 92: Figure 15. Number of Breckland cons
Page 93 and 94: Evidence of Climatic Change: Long-T
Page 95 and 96: Figure 17. Total seasonal precipita
Page 97 and 98: Biodiversity Implications of the Ch
Page 99 and 100: Ariel depositions to agricultural s
Page 101 and 102: the status of Deschampsia flexuosa.
Page 103 and 104: The relative effects of ploughing,
Page 105 and 106: Trends in Species Status: Extinctio
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HymenopteraHymenopteraHymenopteraCo
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In addition to the loss of rare lic
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edstraw Galium parisiense (Tansley
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The relative extent of lichen rich
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The Feasibility and Usefulness of t
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Across patch arrangementLandscape c
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Across patcharrangementJuxtapositio
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Delivery of Multiple Species by Int
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Figure 24. Number of Breckland cons
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Mechanical disturbance to create br
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estricted to road verges, with the
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131
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Records of species from this guild
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© Jeremy Earlywww.natureconservati
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Open with sward mosaics guildChryso
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Grazing without physical disturbanc
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Deadwood in an open-woodland ecoton
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Specific Requirement in a Variety o
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Management to Sustain Dry Terrestri
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Heather should rather be considered
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GrazingrequirementsLightly sheep-gr
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a mosaic of overlapping ploughed, a
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Wind-blown sandThere is great uncer
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IntensityProcess Technique Immediat
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Complex Sward MosaicsComplex sward
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Management for Assemblages of Light
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Management for Species of Physicall
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Key Recommendations for Cultivated
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Shallow cultivation is preferable t
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Maidscross Hill is largely overgrow
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Ecological Requirements of Wetland
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numbers of conservation priority sp
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Recommendation Requirements of wetl
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Restored pingo complexAt Great Hock
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the difficulties of achieving this
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Strategic Challenges to Biodiversit
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Table 22. Problems arising from poo
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Recommendation: Natural England and
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It is therefore vital to carefully
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Creating networks for resilienceTo
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More ambitious possibilities that c
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Figure 34. Example of a potential c
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Connectivity networks© Neal Armour
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and consider whether these repeated
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Ensure that scrub removal, ploughin
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ReferencesADAS. (1997) Biological M
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Haes, E. C. M. & Harding, P. T. (19
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Sastre, B.(2003). Ground spider com
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Securing Biodiversity in Breckland - European Commission

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