Techniques for assessing shingle communities - University of Sussex

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8.1 Pevensey sailing club west TQ 6495 0278 ...............................................................73 8.2 Pevensey sailing club north TQ 6491 0290 ..............................................................76 8.3 Pevensey sailing club east TQ 6505 0292................................................................79 9.1 Sandcastle Hotel, Pevensey, seaward of Grey Tower Bungalows TQ 6518 0308 ...81 9.2 Sandcastle Hotel, Pevensey, caravan park to Courtlands Lodge TQ 6532 0336 .....83 9.3 Sandcastle Hotel, Pevensey, access path TQ 6528 0360 ........................................85 10.1 Coast Road, Normans’ Bay, seaward of caravan park TQ 6778 0518 ...................87 10.2 Coast Road, Normans’ Bay, Aquarius to Driftwood TQ 6840 0546 ........................91 11.1 Pevensey Bay, EA Depot, Herbrand Walk TQ 6950 0602......................................94 11.2 Pevensey Bay, Herbrand Walk TQ 6987 0612 .......................................................97 11.3 Pevensey Bay, chalk bank, EA depot TQ 6944 0598 .............................................99 11.4 Pevensey Bay, Herbrand Walk sluice TQ 6941 0595 ...........................................102 11.5 Pevensey Bay, landward of Herbrand Walk TQ 6967 0608..................................104 11.6 Pevensey Bay, east of sluice TQ 6925 0592 ........................................................107 11.7 Pevensey Bay, shingle ridge east of EA depot TQ 6930 0588 .............................109 12.1 Cooden Beach, Herbrand Walk TQ 7080 0640 ....................................................112 12.2 Cooden Beach, Cooden Drive TQ 7110 0646 ......................................................114 12.3 Cooden Beach, Beaulieu Road TQ 7155 0656.....................................................115 Distribution of key species ................................................................................................117 Relative value of sites.......................................................................................................129 Discussion............................................................................................................................130 Shingle communities.........................................................................................................131 Relative value of sites.......................................................................................................132 Outlook for Phase 2 of BAR .................................................................................................136 References...........................................................................................................................137 Appendix 1 ...........................................................................................................................140 Complete list of species recorded.....................................................................................140 Techniques for assessing shingle communities iv
TECHNIQUES FOR ASSESSING SHINGLE COMMUNITIES Authors: K. R. Cole 1 , A. I. Tait 1 , B. J. Yates 2 and T. J. Younghusband 1 1 East Sussex County Council, Transport & Environment, County Hall, St Anne’s Crescent, Lewes, East Sussex BN7 1UE; 2 Rye Harbour Nature Reserve, 2 Watch Cottages, Nook Beach, Winchelsea, East Sussex TN36 4LU Summary Vegetated shingle is an internationally important habitat whose distribution is globally restricted, and largely limited to north west Europe, Japan and New Zealand (UK Biodiversity Group, 1999a). However, it is well represented in the BAR Region, particularly on the English side of the eastern Channel coasts. Despite its significant ecological importance, existing recording evaluation systems for the habitat are poor. For example, in the UK, the National Vegetation Classification System (NVC) (Rodwell, 1991), used by the statutory conservation bodies in their selection of sites for national and international designation, only characterises two strandline communities (typical of sand or fine shingle substrates) and one vegetation assemblage from coastal shingle (Rodwell, 2000). Surveys of vegetated shingle within the Region are limited and generally restricted to surveys specific to developments or planning applications (e.g. Ryland, 1999, 2000 & 2001). As such no coherent baseline data exists by which to assess the vegetated shingle resource and its relative biodiversity value. The aim of this study was therefore to undertake a pilot baseline survey of the main areas of vegetated shingle in East Sussex using a simple, repeatable technique and to assess their relative biodiversity value. Forty four sites were surveyed, covering more than 61 hectares (Fig. 3). For each site, a list of vascular plants present was complied and relative abundance was recorded. Where possible, sites were matched to four community classifications; shingle community (Sneddon & Randall, 1993), broad shingle community (Williams & Cooke, 1993), NVC (Rodwell, 2000) and Habitats Directive Annex I habitat (92/43/EEC; European Commission, 2003). Crambe maritima (Sea Kale) and Glaucium flavum (Yellow Horned-poppy), characteristic species of pioneer shingle communities (Williams & Cooke, 1993) were recorded from approximately half of the sites surveyed. Of the sites surveyed, 22 of the 44 sites surveyed showed at least some similarities to pre-defined shingle communities. Those that did not were generally sites that had been subject to extensive disturbance by e.g. coastal defence, development or recreational pressure. Teucrium scorodonia (Wood Sage), a species that has been recognised as indicative of ancient shingle ridges on Dungeness (Ferry et al, 1990) was recorded from five sites, four of which were located on some of the few remaining areas of natural shingle from the Crumbles, Eastbourne, possibly indicating its former environmental interest prior to development. Previous techniques for ranking relative quality (Williams & Cooke, 1993) were found to be unsuitable for this study. However, alternative techniques were trialled and will be further developed during later phases of the BAR project. Many of the sites surveyed are outside designated areas and therefore receive no direct form of protection. The baseline data collected during this survey provides a useful tool for assessing the relative biodiversity value of shingle on the East Sussex coast. Lessons learnt during this survey will be extended to the rest of the BAR Region during subsequent phases of the Project. Techniques for assessing shingle communities 1
Page 1 and 2: TECHNIQUES FOR ASSESSING SHINGLE CO
Page 3: Contents Summary ..................
Page 7 and 8: Introduction The eastern Channel co
Page 9 and 10: In the UK, the NVC is the main syst
Page 11 and 12: Crambe maritima Rumex crispus Cirsi
Page 13 and 14: Aims To establish a technique for s
Page 15 and 16: Relative value of sites Notable spe
Page 17 and 18: Results In total, 44 polygons compr
Page 19 and 20: Notable species Table 4 below lists
Page 21 and 22: Species and community types 1.1 Tid
Page 23 and 24: 1.2 Tide Mills East, Newhaven, seaw
Page 25 and 26: 1.3 Tide Mills West, Newhaven, seaw
Page 27 and 28: 1.4 Tide Mills West, Newhaven, land
Page 29 and 30: 2.1 Seaford Bay, Dane Road to Marte
Page 31 and 32: Species Common Name Beta vulgaris s
Page 33 and 34: Species Common Name Beta vulgaris s
Page 35 and 36: 3.1 Cuckmere Haven west, east of ca
Page 37 and 38: 3.2 Cuckmere Haven west, shingle ri
Page 39 and 40: 3.3 Cuckmere Haven west, around sal
Page 41 and 42: Species Common Name Linaria purpure
Page 43 and 44: Species Common Name Agrostis capill
Page 45 and 46: Species Common Name Agrimonia eupat
Page 47 and 48: Species Common Name Cerastium arven
Page 49 and 50: Species Common Name Agrimonia eupat
Page 51 and 52: 4.1 Holywell, treatment works to ac
Page 53 and 54: Species Common Name Reseda luteola
Page 55 and 56:
1 1 Fig. 7. Aerial Photograph of Ho
Page 57 and 58:
Species Name Common Name Rumex cris
Page 59 and 60:
Arenaria serpyllifolia Thyme-leaved
Page 61 and 62:
Species Common Name Euphorbia sp. S
Page 63 and 64:
Species Common Name Achillea millef
Page 65 and 66:
Species Common Name Calystegia sepi
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6.1 Eastbourne sailing club, Redoub
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6.2 Eastbourne sailing club, Channe
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7.1 Pevensey, Bay View caravan park
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7.2 Pevensey, Bay View caravan park
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7.3 Pevensey, Martello Tower to Bay
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8.1 Pevensey sailing club west TQ 6
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Species Common Name Trifolium campe
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Species Common Name Abundance (DAFO
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8.3 Pevensey sailing club east TQ 6
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9.1 Sandcastle Hotel, Pevensey, sea
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9.2 Sandcastle Hotel, Pevensey, car
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9.3 Sandcastle Hotel, Pevensey, acc
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10.1 Coast Road, Normans’ Bay, se
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Species Common Name Cochlearia dani
Page 95 and 96:
10.2 Coast Road, Normans’ Bay, Aq
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Species Common Name Papaver rhoeas
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Species Common Name Centaurea nigra
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11.2 Pevensey Bay, Herbrand Walk TQ
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11.3 Pevensey Bay, chalk bank, EA d
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Species Common Name Sedum anglicum
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Rumex acetosa Common Sorrel R Salic
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Species Common Name Galium aparine
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11.6 Pevensey Bay, east of sluice T
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11.7 Pevensey Bay, shingle ridge ea
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11.6 11.4 11.7 11.3 11.1 11.2 11.5
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Species Common Name Armeria maritim
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12.3 Cooden Beach, Beaulieu Road TQ
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Distribution of key species Eleven
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Techniques for assessing shingle co
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Shingle habitat score Relative valu
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species including C. maritima, A. m
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study, a large number of species wa
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The Nationally Scarce UK BAP specie
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References Bratton, J. (Ed.) 1991.
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Dolphin Ecological Surveys. Unpubli
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Bryonia dioica White Bryony Buddlej
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Geranium molle Dove’s-foot Crane
Page 149 and 150:
Polygonum aviculare Knotgrass Polyg
Page 151:
Tussilago farfara Colt’s-foot Ule
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