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Lloyds Coppice Invertebrate Survey – 2013 (P Lloyds Coppice Invertebrate Survey – 2013 (P. Boardman) Lloyds Coppice Invertebrate Survey Pete Boardman (November 2013) leafmine of Eriocrania salopiella (Photo: Pete Boardman) 1 | P a g e Lloyds Coppice Invertebrate Survey – 2013 (P. Boardman) Summary 574 species of invertebrates were recorded at Lloyds Coppice during a 2013 invertebrate survey by Pete Boardman, Nigel Jones, Caroline Uff, Ian Cheeseborough, Keith Fowler, Nigel Cane-Honeysett & Jim Cresswell. One Red Data Book (RDB3) species of fly was recorded (Lispocephala brachialis) and seven Nationally Scarce species (ocurring in 16-100 hectads) were recorded; the flies - Brachyopa pilosa (hoverfly), Phaonia siebecki (muscid fly), Syntormon macula (long-legged fly); the beetles - Platycis minutus (a net-wing beetle), Pyrochroa coccinea (a cardinal beetle) and the spiders; Episinus truncatus (a comb-foot spider), Evarcha arcuata (a jumping spider). Twenty four other species deemed important to Shropshire were recorded. These were a combination of new Shropshire species, species with only a couple of other records for the county, or species listed within the Local Biodiversity Action Plan list for Shropshire. An assessment of the total list of species recorded was undertaken using ISIS software. This showed that three invertebrate assemblages of note were evident within the total species list. They were bark and sapwood decay assemblage (saproxylic invertebrates), rich flower resource assemblage (nectar feeders), and scrub edge assemblages. Habitat management suggestions were made. 2 | P a g e Lloyds Coppice Invertebrate Survey – 2013 (P. Boardman) Introduction During 2013 an invertebrate survey was undertaken at Lloyds Coppice (SJ685033) in Ironbridge. The site, owned by the Severn Gorge Countryside Trust (SGCT), is predominantly steep, wooded, and lies adjacent to the River Severn to the east of Ironbridge centre. The site is approximately 40 ha in size and sits on coal measure clays with some sandstone and is noted to be geologically unstable. Crags of sandstone have moved down from their outcrop near the top of the hill, bringing with them the overlying thick till. Geological faults, ground water, surface water, the nature of the geology, construction and mining are all associated with the instability of this slope (http://www.bgs.ac.uk). Though the site is predominantly ancient semi-natural woodland, small areas of acidic grassland with heather are present and there is a woodland pool in the central section. There are also several small ephemeral pools, ditches and flushes on the site. Fig 1 – Lloyds Coppice – extent of survey The main groups of invertebrates that were targeted were the diptera (flies), coleoptera (beetles), hymenoptera (bees, wasps and ants), hemiptera (true bugs), and araneae (spiders). Lepidoptera were originally due to be more fully targeted however the cold weather conditions during the spring and early summer caused us to transfer more time to other groups of insects instead and lepidoptera were only recorded casually rather than as a main group. The survey team consisted of; Pete Boardman, Ian Cheeseborough, Caroline Uff, Keith Fowler, Jim Cresswell, Nigel Jones, and Nigel Cane-Honeysett. Several methods were used for finding invertebrates including sweep-netting, vacuum-sampling, pitfall trapping, beating vegetation, grubbing, use of bark traps, hand-searching, and pooting. 3 | P a g e Lloyds Coppice Invertebrate Survey – 2013 (P. Boardman) Results A total of 574 species of invertebrate were recorded during the survey of Lloyds Coppice representing 17 invertebrate orders. Of these the diptera (flies) were the largest group of species encountered at 223 species with good numbers of hemiptera (bugs), coleoptera (beetles), araneae (spiders) and aculeate hymenoptera (bees, wasps and ants) recorded. The full breakdown of species per invertebrate order is listed in table 1. A full list of invertebrates recorded is detailed in the appendix of this report and was submitted to SGCT electronically. A total of 26 recording dates were made by the surveyors which ranged from a single visit by a single recorder for a couple of hours, to visits made by several entomologists for most of the day. All records were submitted to the appropriate county recorders for Shropshire and were entered on the Shropshire Ecological Data Network (SEDN), the virtual local record centre for the county. In turn this data will progress to the NBN Gateway via the SEDN where it will be visible to a national audience. Taxon No of species Diptera (flies) 223 Hemiptera (true bugs) 91 Coleoptera (beetles) 86 Araneae (spiders) 49 Hymenoptera (bees, wasps, ants & sawflies) 48 Lepidoptera (butterflies & moths) 37 Odonata (damselflies & dragonflies 9 Opiliones (harvestman) 8 Diplopoda (millipedes) 5 Mollusca (terrestrial molluscs) 5 Isopoda (woodlice) 3 Orthoptera (grasshoppers & crickets) 3 Pscoptera (bark flies) 2 Mecoptera (scorpionflies) 2 Chilopoda (centipedes) 1 Neuroptera (lacewings) 1 Dermaptera (earwigs) 1 574 Table 1 – Number and breakdown of species recorded at Lloyds Coppice during 2013. The full list of species recorded during 2013 was put through ISIS software. This was developed initially by Natural England to allow an assessment of the invertebrate assemblages of Sites of Special Scientific Interest (SSSI’s) (Drake et al, 2007), however it can equally be used on non-SSSI sites to enable a feel for the habitats of importance and their invertebrate assemblages, though some discretion is needed in the interpretation of the results. ISIS flags up three invertebrate assemblages that are of note from within the 574 species recorded and would suggest favourable condition on a SSSI for the following assemblages; bark and sapwood decay (dead wood or saproxylic assemblage), rich flower resource (nectar and pollen feeding insects assemblage), and scrub edge. The two noteworthy species of Odonata recorded bring the slow- 4 | P a g e Lloyds Coppice Invertebrate Survey – 2013 (P. Boardman) flowing rivers category into the assemblage list, though not deemed favourable within the results, is still an interesting feature and is discussed later within this report. SAT code SAT name No of sp. Condition Percentage of Related BAT (Specific Assemblage national species rarity score Types) pool W125 slow-flowing rivers 2 8 203 F002 rich flower resource 18 fav 7 F001 scrub edge 13 fav 7 A215 epiphyte fauna 1 5 176 A212 bark & sapwood decay 23 fav 5 176 A211 heartwood decay 5 3 176 W126 seepage 1 2 203 F003 scrub-heath & 6 2 moorland W114 stream and river 1 2 203 margin F112 open short sward 3 2 109 F006 dung 1 1 W312 Sphagnum bog 1 1 123 F111 bare sand & chalk 1 0 109 Table 2 – ISIS score for species assemblages (SAT) ISIS also looks at Broad Assemblage Types (BAT) as well as Specifici Assemblage Types (SAT) however the results of this table were inconclusive so are not included in this report. A number of species were noted of importance due to their status nationally, regionally or within Shropshire (VC40). One Red Data Book (RDB) (Shirt, 1987) species was recorded (recorded in less than 16 hectads nationally), though these definitions have been replaced with a more up to date IUCN categorisation. Seven Nationally Scarce species (recorded in 16-100 hectads nationally), and twenty four species deemed important Shropshire invertebrates (the current Local Biodiversity Action Plan (LBAP) list, new species or ‘nearly new’ to Shropshire. The full list of these is included in table 3 below. Order Taxon Status / Comment Diptera a platypezid fly Agathomyia unicolor New to Shropshire Hymenoptera a solitary bee Andrena bucephala LBAP species Lepidoptera Red-necked Footman Atolmis rubricollis LBAP species Coleoptera a ground beetle Badister sodalis 2nd Shropshire record Diptera a hoverfly Brachyopa pilosa Nationally Scarce Diptera a muscid fly Coenosia infantula New to Shropshire Diptera a hoverfly Criorhina berberina LBAP species Diptera a dance fly Empis nigritarsis LBAP species Aranae a comb-footed spider Episinus truncatus Nationally Scarce Aranae a jumping spider Evarcha arcuata Nationally Scarce Odonata Club-tailed Dragonfly Gomphus vulgatissimus LBAP species Diptera a muscid fly Lispocephala brachialis RDB3 (4 post 1960 UK records Diptera a fruit fly Lordiphosa fenestrarum New to Shropshire Coleoptera a darkling beetle Nalassus laevioctostriatus 3rd Shropshire record Coleoptera a leaf beetle Oomorphus concolor New to Shropshire Diptera a muscid fly Phaonia siebecki Nationally Scarce Coleoptera a leaf beetle Phyllotreta tetrastigma 3rd Shropshire record 5 | P a g e Lloyds Coppice Invertebrate Survey – 2013 (P. Boardman) Coleoptera a net-wing beetle Platycis minutus Nationally Scarce Odonata White-legged Damselfly Platycnemis pennipes LBAP species Diptera a dance fly Platypalpus pectoralis New to Shropshire Diptera a platypezid fly Platypeza consobrina New to Shropshire Diptera a hoverfly Portevinia maculata LBAP species Coleoptera a cardinal beetle Pyrochroa coccinea Nationally Scarce Diptera a dance fly Rhaphium consobrinum New to Shropshire Diptera a hoverfly Rhingia rostrata LBAP species Diptera a flesh fly Sarcophaga subulata New to Shropshire Diptera a hoverfly Sphegina clunipes LBAP species Diptera a long-legged fly Syntormon macula Nationally Scarce Coleoptera a rove beetle Tachinus subterraneus 2nd Shropshire record Diptera a cranefly Tipula irrorata LBAP species Diptera a dance fly Trichina bilobata New to Shropshire Table 3 – significant invertebrates recorded at Lloyds Coppice
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