[1] Ctr Ecol & Hydrol Lancaster, Lancaster Environm Ctr, Lancaster LA1 4AP, England
[2] Poznan Univ Life Sci, Inst Zool, PL-60625 Poznan, Poland
[3] Aarhus Univ, NERI, DK-4000 Roskilde, Denmark
[4] Ctr Ecol & Hydrol Edinburgh, Penicuik EH26 0QB, Midlothian, Scotland
[5] Marine Scotland, Freshwater Lab, Pitlochry PH16 5LB, Perth, Scotland
[6] Rothamsted Res, Dept Plant & Invertebrate Ecol, Rothamsted Insect Survey, Harpenden AL5 2JQ, Herts, England
[7] Ctr Ecol & Hydrol Wallingford, Wallingford OX10 8BB, Oxon, England
[8] Butterfly Conservat, Wareham BH20 5QP, Dorset, England
[9] Royal Holloway Univ London, Sch Biol Sci, Egham TW20 0EX, Surrey, England
[10] Univ Cambridge, Dept Zool, Cambridge CB2 3EJ, England
[11] Sir Alister Hardy Fdn Ocean Sci, The Lab, Plymouth PL1 2PB, Devon, England
[12] Freshwater Biol Assoc, Ambleside LA22 0LP, Cumbria, England
[13] Peoples Trust Endangered Species, London SW8 4BG, England
[14] British Trust Ornithol, Thetford IP24 2PU, England
[15] Univ Worcester, Natl Pollen & Aerobiol Res Unit, Worcester WR2 6AJ, England
[16] Woodland Trust, Grantham NG31 6LL, Lincs, England
[17] Abbots Ripton, Ctr Ecol & Hydrol Monks Wood, Huntingdon PE28 2LS, Cambs, England