Supplementary Material s90

SUPPLEMENTARY MATERIAL

Disentangling and ranking the influences of multiple environmental factors on plant and soil-dwelling arthropod assemblages in a river Rhine floodplain area

Aafke M. Schipper * ∙ A. Jan Hendriks ∙ Ad M.J. Ragas ∙ Rob S.E.W. Leuven

Radboud University Nijmegen, Institute for Water and Wetland Research, Department of Environmental Science, PO Box 9010 6500GL Nijmegen, The Netherlands * Corresponding author. Tel: +31 24 3652923; E-mail: [email protected] Table S1: Plant species abundance per sampling site. Abundance is expressed on modified Braun-Blanquet scale and was recorded in May 2008. Sampling site 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Land use a H H H H H S S S S S C C C C C C C C C C C C C C C C C C S S Flooding duration (days per year) 3 3 3 3 3 2 2 3 3 3 79 9 9 18 1 57 12 10 5 2 26 15 17 3 3 3 3 3 3 1 Achillea millefolium 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2a Alliaria petiolata + 0 + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Alopecurus pratensis 0 r 0 0 r r 0 + + 0 + 2a 2a 2b 3 0 3 3 1 2a 1 1 3 2a 2b 2a 3 2b r 1 Arctium lappa + r 2a 0 + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + + r 0 0 0 0 0 0 0 Arrhenatherum elatius 0 0 0 + 0 0 0 + + 0 0 0 0 0 2a 0 0 1 3 2b 0 0 0 0 0 0 0 0 0 + Artemisia vulgaris 0 0 0 0 0 0 0 0 0 r r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Atriplex prostrata 0 0 0 0 r 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bellis perennis 0 0 0 0 0 1 1 + + + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2a Bromus hordeaceus 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2a Calystegia sepium 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 Capsella bursa-pastoris 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cardamine pratensis 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Carduus crispus 0 0 0 0 0 r 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r r Carex hirta 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cerastium fontanum vulgare 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 r 0 0 0 0 Chaerophyllum temulum 2b + r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Cirsium arvense 0 0 0 0 0 0 0 0 r 0 + + + 1 0 r 2a 0 r + 1 + r 1 + + r + r r Crataegus monogyna 4 5 4 5 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 Crepis capillaris 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 Dactylis glomerata 1 r r 2b 1 1 1 2b 2b 1 + 0 2a 0 3 1 2b 3 3 3 1 3 0 3 + + r + 1 0 Elytrigia repens 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2a 2a 0 0 0 3 2b 0 0 0 0 0 0 0 0 Epilobium hirsutum 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Equisetum arvense 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2a 0 0 0 0 0 0 0 0 0 0 Festuca pratensis 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + 1 2b 0 r 0 0 0 Festuca rubra 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 Fraxinus excelsior r r 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Galium aparine r 0 + 1 + 0 0 0 0 0 r 1 1 0 r 0 0 0 0 r 0 0 + 0 0 0 0 0 r 0 Geranium molle 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r Glechoma hederacea 3 3 1 3 1 + r 1 0 r 0 0 + + + + 0 0 0 0 0 0 0 0 0 + 0 0 r 0 Heracleum sphondylium 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Holcus lanatus 0 0 0 0 0 0 0 r 0 0 0 0 0 0 + 0 0 0 0 + 0 0 0 0 0 0 0 0 0 0 Lamium album r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Lolium perenne 0 0 0 0 0 1 2b 2b 2b 3 0 0 0 0 1 r 0 0 0 0 0 2a 1 1 2b 2a 1 1 3 1 Lysimachia nummularia 0 0 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Melilotus sp. 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Ononis repens 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 0 0 Sampling site Sampling site 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Land use H H H H H S S S S S C C C C C C C C C C C C C C C C C C S S Flooding duration (days per year 3 3 3 3 3 2 2 3 3 3 79 9 9 18 1 57 12 10 5 2 26 15 17 3 3 3 3 3 3 1 Persicaria amphibia 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 r 0 0 0 0 r 0 0 Phalaris arundinacea 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Plantago lanceolata 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r + 0 0 0 0 0 0 0 0 0 0 0 Plantago major subsp. major r 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Poa annua 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 Poa pratensis 0 0 0 0 0 4 3 1 3 2b 0 0 0 0 1 0 0 0 0 + 1 0 1 3 2b 3 2b 1 2a 3 Poa trivialis 2b 2b 2a 2b 2a 2b 1 2b 2a 2b 4 2b 2a 2a + 0 1 1 1 0 2b 2b 2b 2a 1 2b 3 2b 2b + Polygonum aviculare 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 1 1 0 0 0 0 0 0 0 Potentilla anserina 0 0 0 0 0 0 0 0 0 0 0 0 0 + 0 + 0 0 0 0 1 0 2a 0 0 0 0 0 0 0 Potentilla reptans 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + 2a 0 0 0 0 2a 0 r 0 0 0 0 + 0 0 Prunella vulgaris 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Prunus avium 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 Quercus robur 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Ranunculus acris 0 0 0 0 r 0 r 0 0 0 0 0 0 0 r 0 r 3 + 0 0 0 0 0 0 0 0 0 r 0 Ranunculus repens 0 0 0 0 0 + + r r + 0 0 0 0 0 0 0 r 0 0 r 0 0 0 + 2a 1 3 + 1 Rorippa sylvestris 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Rosa canina 0 0 0 0 2a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Rubus caesius r r 0 0 0 0 0 0 0 0 0 0 0 0 r r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Rubus fruticosus 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Rumex acetosa 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + Rumex crispus 0 0 0 0 0 0 0 r r 0 + 0 0 0 0 0 0 0 0 0 + 0 r r 0 0 0 0 r + Rumex obtusifolius 0 0 r 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 Rumex pratensis 0 0 0 0 r 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Salix alba 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Salix viminalis 0 0 0 0 0 0 0 0 0 0 2b 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Sambucus nigra r r r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Solanum dulcamara 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Stachys palustris 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Stellaria aquatica 0 0 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Taraxacum officinale 0 0 0 0 0 1 + r r 1 0 0 0 0 0 r 1 1 1 + + + 1 1 1 1 2a 1 2b 0 Trifolium pratense 0 0 0 0 0 0 0 r 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 r r 0 0 0 0 Trifolium repens 0 0 0 0 0 + 2b r 1 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2a 4 Tripleurospermum maritimum 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 r 0 0 0 0 0 0 0 0 0 Urtica dioica 2a 2b 3 4 2b 2a r 3 0 2a 1 4 4 4 r r 1 0 0 0 0 r 2a 0 0 0 0 0 1 + Valeriana officinalis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 Veronica arvensis 0 0 0 0 0 0 0 0 0 r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r 0 Vicia sepium 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 + 0 0 0 0 0 0 0 0 0 0 a H = hedgerow; S = sheep grazing; C = cattle grazing Table S2: Ground beetle species abundance per sampling site. Numbers represent average values based on monthly pitfall trap samples collected from May through October 2007. Sampling site Ground beetle species 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Acupalpus exiguus 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 Agonum micans 0 0 0 0 0 0 0 0 0.2 0 0.2 0 0 0 0 0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Agonum muelleri 0 0 0 0 0 0 0 0 0.2 0 0.2 0 0 0.2 0 0.3 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 Amara aenea 0 0.2 0 0 0.2 0.2 1 0.2 1.8 0.7 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0.2 Amara anthobia 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 Amara aulica 0.2 0 0 0.5 0.3 0 0.2 0.3 0.2 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0.8 0 0 0 0 0 0 0 Amara communis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0.3 1.2 0.2 0 0 0.7 0.2 0 0 0.5 0.2 0.2 0.2 0 Amara convexior 0 0 0 0 0 0 0 0.3 0 0 0 0 0.5 0 0 0 0 0.2 0 0.3 0 0 0.2 0.2 0 0.2 0.2 0 0 0 Amara equestris 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Amara familiaris 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.3 Amara lunicollis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.3 0 0 0 0 0 0.2 0 0 0 0 0 0 0 Amara ovata 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Amara plebeja 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.3 0 0 0 0 0 0 0 0 Amara similata 0 0 0 0 0 0.2 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 Anchomenus dorsalis 1.5 1.3 0.8 1.8 1 0.2 0 0.7 0 0 0.2 0 0 0.6 0 0.2 0 1.7 0 0.8 0.2 0 0.7 0.2 0 0.2 0 0.3 0.7 0.2 Asaphidion flavipes 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Badister bullatus 0 0 0 0.2 0 0.2 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 0 0 0 0 0.2 0.2 0 0 0.2 0.3 0.2 Badister lacertosus 0.2 0 0.3 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 Badister sodalis 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bembidion biguttatum 0 0 0 0.2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 Bembidion gilvipes 0.2 0 0 0.2 0.2 0 0 0 0.2 0 0 0 0.2 1 0 0 0 0 0.2 0 1.4 0 0 0.3 0 0 0.2 0.2 0 0.2 Bembidion guttula 0.2 0 0 0 0 0 0 0 0 0 0 0 0 1.2 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0.3 0 0 Bembidion lunulatum 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0.2 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 Bembidion properans 0 0 0 0 0 0 1.2 0.2 4.2 0 0 0 0 0 0 1.2 0 0.3 0.3 0 0 0.2 0 0 0 0 0 0.2 0 0.8 Bembidion tetracolum 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 Bradycellus verbasci 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Calathus melanocephalus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Carabus granulatus 0 0.2 0 0.2 0 0 0 0 0.2 0 1.3 0 0 0 0 0.5 0 0 0 0 0 0.2 0.2 0 0.3 0 0.2 0.2 0 0 Carabus monilis 0 0 0 0 0 0 0 0 0 0.2 0 0.2 1 1 0.2 0.3 0.7 1.8 0.8 0 0.4 1.2 0.3 0.2 0.7 0.2 1 0.7 0.2 0.3 Clivina fossor 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0.2 0 0 0.2 0 0.2 0 0.4 0 0 0 0.2 0 0 0.5 0 0 Epaphius secalis 0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Harpalus affinis 0 0 0 0 0.2 0.2 0 0.2 1.3 0 0 0 0 0 0 0.2 0 4.7 1 0 0.4 0.8 0 0 0 0.2 0 0 0.2 1 Leistus cf. fulvibarbis 0.5 0.5 0 0.8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Leistus rufomarginatus 0 0 0 0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Limodromus assimilis 3.5 2.3 1.8 1 0.7 0.2 0 0 0 0 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 Loricera pilicornis 0.2 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0.2 0.3 0 0.2 0.2 0 0 Nebria brevicollis 3.5 1 1 4.3 10.3 2.5 5 4.7 0.7 3.2 0.7 0 0 0 0 0.2 0 0.3 0.2 0 0 0.2 0.2 0.8 0 0.3 0 0.5 13.2 0.5 Notiophilus biguttatus 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Notiophilus palustris 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 Notiophilus rufipes 0.2 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Oodes helopioides 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Ophonus rufibarbis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0.3 0 0 0 0 0 0 0 0 Panagaeus cruxmajor 0 0 0 0 0 0 0 0 0 0 0.2 0.2 0.3 0.2 0 0 0 0 0 0 0 0.5 0 0 0 0 0 0 0.2 0 Paradromius linearis 0 0 0 0 0.2 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Philorhizus melanocephalus 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Philorhizus sigma 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 0 0.2 0 0.2 0 0 0 0 Poecilus cupreus 0 0 0.2 0 0 0 0.2 0 0 0 0.2 0 0 0.8 0 0 1.2 2 0 0 0.8 1 0 0 0 0.2 0 1.7 0 0 Poecilus versicolor 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 Harpalus rufipes 0.2 1 0.5 0.2 0.2 0.8 0 0.2 0.5 0.2 0.5 0.7 0 1.4 0.2 0.2 0.7 15 0 0 3.8 4.5 3.7 0 0.8 0.5 1 0.2 0.3 0.8 Pterostichus melanarius 3.2 1.2 2.2 2.2 8.2 2.8 2.5 1.2 2.3 8.7 7.5 5.3 7.5 10 3.3 9.5 10 14 1.3 0.3 4 7.8 5.5 0.3 0.5 2 2 3.2 8.5 4.7 Pterostichus niger 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 Pterostichus strenuus 0 0 0.2 0 0.2 0 0 0 0 0 0.3 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 Pterostichus vernalis 0 0 0 0 0 0 0 0 0 0 1.2 0 0.2 0.8 0 0 0 0.2 0.2 0 0.2 0.2 0.2 0 0 0 0 0.2 0 0.5 Stomis pumicatus 0 0 0.3 0.5 0 0 0 0 0 0 0 0.2 0.3 0.2 0.2 0 0.2 0 0 0.2 0 0 0.7 0.8 0.7 0.2 0.5 0.2 0 0 Synuchus vivalis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.3 0 Trechoblemus micros 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Trechus cf. quadristriatus 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.5 0 0 Table S3: Ground beetle genera abundance per sampling site. Numbers represent average values based on monthly pitfall trap samples collected from May through October 2007. Ground beetle Sampling site genera 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Acupalpus 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 Agonum 0 0 0 0 0 0 0 0 0.3 0 0.3 0 0 0.2 0 0.7 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 Amara 0.2 0.2 0 0.5 0.5 0.3 1.2 0.8 2.2 0.7 0.7 0 0.5 0 0.2 0.2 0.7 1.3 0.3 0.3 0.2 1 1.3 0.2 0 0.7 0.3 0.2 0.2 0.7 Anchomenus 1.5 1.3 0.8 1.8 1 0.2 0 0.7 0 0 0.2 0 0 0.6 0 0.2 0 1.7 0 0.8 0.2 0 0.7 0.2 0 0.2 0 0.3 0.7 0.2 Asaphidion 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Badister 0.2 0 0.3 0.2 0 0.2 0 0 0 0 0.2 0.2 0 0.2 0 0 0.2 0 0 0 0 0.2 0 0.2 0.2 0 0 0.2 0.3 0.2 Bembidion 0.3 0 0 0.3 0.2 0.2 1.2 0.2 4.3 0 5 0 0.2 3.4 0 1.5 0.2 0.3 0.5 0 1.6 0.3 0 0.3 0 0 0.2 0.7 0 1.2 Bradycellus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Calathus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Carabus 0 0.2 0 0.2 0 0 0 0 0.2 0.2 1.3 0.2 1 1 0.2 0.8 0.7 1.8 0.8 0 0.4 1.3 0.5 0.2 1 0.2 1.2 0.8 0.2 0.3 Clivina 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0.2 0 0 0.2 0 0.2 0 0.4 0 0 0 0.2 0 0 0.5 0 0 Epaphius 0.3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Harpalus 0.2 1 0.5 0.2 0.3 1 0 0.3 1.8 0.2 0.5 0.7 0 1.4 0.2 0.3 0.7 19.2 1 0 4.2 5.3 3.7 0 0.8 0.7 1 0.2 0.5 1.8 Leistus 0.5 0.5 0 1.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Limodromus 3.5 2.3 1.8 1 0.7 0.2 0 0 0 0 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 Loricera 0.2 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0.2 0.3 0 0.2 0.2 0 0 Nebria 3.5 1 1 4.3 10.3 2.5 5 4.7 0.7 3.2 0.7 0 0 0 0 0.2 0 0.3 0.2 0 0 0.2 0.2 0.8 0 0.3 0 0.5 13.2 0.5 Notiophilus 0.3 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 Oodes 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Ophonus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0.3 0 0 0 0 0 0 0 0 Panagaeus 0 0 0 0 0 0 0 0 0 0 0.2 0.2 0.3 0.2 0 0 0 0 0 0 0 0.5 0 0 0 0 0 0 0.2 0 Paradromius 0 0 0 0 0.2 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Philorhizus 0 0 0 0.3 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 0 0.2 0 0.2 0 0 0 0 Poecilus 0 0 0.2 0 0 0 0.2 0 0 0 0.2 0 0 0.8 0 0 1.2 2 0 0 0.8 1 0 0 0 0.3 0 1.7 0 0 Pterostichus 3.2 1.2 2.3 2.2 8.3 2.8 2.5 1.2 2.3 8.7 9 5.3 7.7 10.8 3.3 9.5 10.3 14.2 1.5 0.3 4.4 8.2 5.7 0.3 0.5 2 2 3.5 8.5 5.2 Stomis 0 0 0.3 0.5 0 0 0 0 0 0 0 0.2 0.3 0.2 0.2 0 0.2 0 0 0.2 0 0 0.7 0.8 0.7 0.2 0.5 0.2 0 0 Synuchus 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.3 0 Trechoblemus 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Trechus 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.5 0 0 Table S4: Beetle family abundance per sampling site. Numbers represent average values based on monthly pitfall trap samples collected from May through October 2007. Sampling sites Beetle families 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Anobiidae 0.2 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Apionidae 0 0 0 0 0 0 0 0 1.2 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 Byrrhidae 0 0 0 0.3 0.2 0 0 0.2 0 0 0 0 1.8 0 0.3 0.2 0 0 0.2 0.2 0 0 0 0 0 0 0 0 0.2 0 Cantharidae 0.2 0 0.2 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Carabidae 14 7.7 7.8 13 22 7.3 10 8 12 13 20 6.7 10 19 4 14 14 41 4.5 1.8 13 18 13 3.3 3.7 4.7 5.3 9.3 24 9.8 Chrysomelidae sp. 0.8 0.3 0.2 0.8 0.2 0 2.7 2 4.3 2.5 1.2 1 0.3 0.2 0 0.2 0.2 7.8 0.2 0.3 2.6 0 0.5 0.7 0 0 1 0.3 0.5 0.3 Clambidae 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 Coccinellidae 0 0 0.2 0.3 0 0.2 0 0 0.2 0 0.5 0 1 0 0.2 0.3 0.7 0.3 2.5 1.8 0.6 0.3 0.7 0.7 0.8 1.3 1 0.3 0 0.2 Corylophidae 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 Cryptophagidae 1.3 0.3 0.8 5.5 9.8 0.7 0 0.5 0 0.2 0.7 0.5 0.2 0.8 1.3 0.3 0.2 0 1.2 4.8 2 1.7 7.5 2.7 0.8 0.3 1 0.3 1 0.3 Curculionidae 3.7 5.5 6.7 11 5 1.2 3 3.7 7.3 6.3 1.2 2 3.3 2.2 3.8 2 2 2.2 5.5 5.5 3 1.5 3 2 2.2 2.8 2.3 2.2 1 3.2 Dryopidae 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Elateridae 0.3 0.2 0.3 1 1 0 0.3 2.3 1.7 0.2 0.8 2.7 6 10 5.3 0.7 4.7 1.7 2 1.2 0.4 2.7 0.7 0.5 0.7 0.5 1 4.8 0.7 0.5 Geotrupidae 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 Histeridae 0 0 0.3 0 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0.2 0 0 0 0 Hydrophilidae 1 1 1.2 3.7 2.2 0.8 0.7 3 1.8 1 0.7 0.3 0.8 0.4 3.5 6 1.8 2.7 2 3.8 1.4 2.8 2.2 3.8 4.5 3.5 3.2 2.7 6.3 2.8 Kateretidae 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0 Lampyridae 1.5 2 3.5 0.8 0.2 2.7 0 0.5 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.8 0 Lathridiidae 0.7 0.3 1 1.5 0.8 0.3 0 0 0 0 0.3 0 0 0 0.2 1.7 0.2 0.2 0 0.3 0.6 0.2 2.2 0.2 0.2 0 0 0 0.3 0 Leiodidae 1.5 3.8 4.8 0.8 1.3 0.8 0.2 0.3 0.2 0.3 0 0.2 0 3.2 6.7 0.7 0.3 0.3 0 3 0 0.3 3.8 1 1.2 0.2 2.5 1 0.2 0 Melyridae 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0.2 0 0 0 0.2 0 0 0 0 0 0 0 0 0 0 Monotomidae 0 0 0.2 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 Mordellidae 0 0 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Nitidulidae 0.2 0 0.2 0.7 0.2 0 0 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0 0.5 Pselaphidae 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0.4 0 0 0 0 0 0 0.4 0 0 0.2 0.2 0 0.3 0.3 0 0 Ptiliidae 0 0 0.2 0 0 0.2 0 0 0.2 0.3 0 0 0 0 0 0.2 0 0 0 0 0.2 0.2 0 0.2 0 0 0 0 0.5 0.2 Salpingidae 0.3 0.2 0.3 1 1 0 0.3 2.3 1.7 0.2 0.8 2.7 6 10 5.3 0.7 4.7 1.7 2 1.2 0.4 2.7 0.7 0.5 0.7 0.5 1 4.8 0.7 0.5 Scarabaeidae 0.3 0.2 0 0.3 0.2 0.2 0.2 0.3 0 0 0 0 0 0 0.2 0 0 0 0 0 0.2 0 0 0 0 0 0 0 0.3 0.2 Scirtidae 0 0.2 0 0.7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Scydmaenidae 0 0 0.2 0.2 0.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.2 0.2 0 0 0 0 0 Silphidae 0.3 0.2 0.3 0 0.7 0 0 0 0.2 0 0.3 0.8 2.2 1.4 1.5 0 0.2 0.5 0 1 0.4 0.3 0.3 0.2 0.2 0.5 0.3 0.2 1.2 0 Staphylinidae 16 19 7.5 26 11 5.2 4.3 5.8 5.7 4.3 6.5 30 31 22 9.7 5 15 14 14 20 7.8 14 17 14 10 10 11 6.5 9.2 16 Table S5: Arthropod group abundance per sampling site. Numbers represent average values based on monthly pitfall trap samples collected from May through October 2007. Sampling sites Arthropod groups 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Arcari 59 52 35 81 29 19 25 31 21 24 22 17 25 21 11 19 18 30 15 17 41 35 53 41 37 31 48 48 31 12 Aranea 42 15 21 28 38 30 32 62 43 26 27 39 63 63 33 40 58 75 37 46 43 33 43 42 29 48 32 34 41 33 Opiliones 10 9 9 18 13 3 2 6 3 3 13 8 10 6 5 6 8 14 6 9 1 1 12 7 3 4 3 7 12 10 Chilopoda 0 1 1 1 1 0 0 0 1 0 1 1 0 1 1 0 0 1 0 1 0 0 0 1 1 2 1 4 0 0 Diplopoda 2 3 6 3 1 2 2 2 4 2 1 4 3 2 5 0 2 1 2 3 0 1 2 4 3 3 4 0 3 0 Isopoda 25 31 16 26 21 9 8 12 3 14 7 14 17 27 12 4 5 14 3 11 1 6 6 9 9 6 14 12 27 11 Formicidae 13 55 23 9 15 11 26 27 74 20 2 9 13 25 25 240 12 15 22 31 14 22 17 6 9 13 9 8 10 24 Hemiptera 4 5 8 13 6 3 6 49 9 6 6 6 12 9 17 6 13 48 18 13 6 5 11 9 11 12 10 31 7 6 Dermaptera 4 3 7 4 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Coleoptera 42 42 37 70 57 21 22 30 36 30 34 45 57 61 40 37 41 73 34 48 34 45 53 33 29 28 32 31 53 37 Table S6: Bivariate Spearman rank correlations between the environmental characteristics in the ‘Wolfswaard’ study area. *p < 0.05; **p < 0.01 t r n r h e o e d d d d i g v i t v e e e i e l l l l l o l l e a r v v v n v

r a a a l l c a a l l a a h t t t

t t t o e t p o u o o e o i o d t l o o y o n o o t t 5 o g o e n M s s d t t t s t s l t t . t t n t i a H o a

d e o s s s e l s i 0 i i i O i a i a t – – g v – p – –

S – t e – c h

d C d d d d S a n e S i a C r n i l t s d u S b H n t - - - - a

e N C E A Z e P C C t d u b o n g s g i o e Z P C C e l D V F V Distance to river 0.26 -0.68 0.35 -0.59 0.39 0.25 0.48 -0.46 -0.42 0.09 -0.62 -0.01 -0.37 -0.31 -0.41 -0.49 -0.38 -0.05 -0.29 -0.34 -0.43 -0.30 0.01 -0.18 Elevation -0.72 0.60 -0.60 0.10 -0.40 -0.33 0.35 0.36 -0.29 -0.43 0.19 -0.02 -0.42 -0.44 -0.54 -0.40 -0.54 -0.35 -0.44 -0.35 -0.33 -0.11 -0.17 Flooding duration ** ** -0.46 0.55 -0.21 0.07 -0.10 0.08 -0.02 0.09 0.51 -0.01 0.38 0.53 0.62 0.68 0.57 0.36 0.51 0.61 0.61 0.52 0.17 0.39 Sheep ** ** * -0.68 -0.25 -0.35 -0.24 0.25 0.25 -0.40 -0.51 0.30 -0.36 -0.47 -0.42 -0.48 -0.50 -0.47 -0.32 -0.40 -0.27 -0.42 -0.07 -0.12 Cattle ** ** * ** -0.55 0.24 0.14 -0.16 -0.13 0.48 0.63 0.06 0.00 0.60 0.56 0.67 0.50 0.55 0.46 0.50 0.42 0.39 0.18 0.20 Hedge * ** 0.08 0.09 -0.08 -0.12 -0.18 -0.26 -0.42 0.41 -0.25 -0.25 -0.34 -0.10 -0.19 -0.24 -0.20 -0.24 -0.03 -0.16 -0.12 Clay * 0.78 -0.81 -0.83 0.65 -0.07 -0.01 -0.17 0.54 0.43 0.40 0.46 0.71 0.46 0.50 0.32 0.46 0.42 0.42 Silt ** ** -1.00 -0.96 0.74 -0.23 -0.01 -0.19 0.42 0.36 0.31 0.36 0.70 0.39 0.39 0.24 0.35 0.44 0.29 Sand * ** ** 0.96 -0.76 0.21 0.00 0.18 -0.45 -0.38 -0.33 -0.39 -0.72 -0.42 -0.41 -0.25 -0.38 -0.45 -0.31 d0.5 * ** ** ** -0.71 0.19 0.01 0.11 -0.47 -0.42 -0.36 -0.42 -0.72 -0.44 -0.46 -0.29 -0.42 -0.44 -0.35 SOM * ** ** ** ** ** -0.16 0.26 -0.06 0.70 0.67 0.60 0.64 0.82 0.68 0.66 0.52 0.61 0.70 0.55 pH ** * ** ** ** -0.19 0.11 0.19 0.16 0.30 0.22 0.09 0.06 0.11 0.04 0.09 -0.45 -0.29 Vegetation cover * -0.14 0.34 0.31 0.25 0.32 0.15 0.40 0.36 0.28 0.33 0.42 0.40 Vegetation height * * * 0.18 0.20 0.16 0.28 -0.07 0.15 0.22 0.21 0.25 0.00 0.18 As – total * ** ** ** ** * * ** ** 0.95 0.94 0.92 0.85 0.95 0.95 0.85 0.88 0.71 0.79 Cd – total * * ** * ** * * * ** ** 0.96 0.94 0.82 0.96 0.98 0.94 0.92 0.73 0.82 Cr – total ** ** ** ** ** * ** ** ** 0.91 0.83 0.92 0.94 0.89 0.88 0.66 0.75 Cu – total * * ** ** ** * * * * ** ** ** ** 0.80 0.91 0.93 0.83 0.98 0.63 0.74 Ni – total ** * ** ** ** ** ** ** ** ** ** ** ** 0.81 0.81 0.68 0.78 0.65 0.62 Pb – total ** * * * * * ** * ** ** ** ** ** 0.97 0.90 0.90 0.81 0.87 Zn – total * ** * ** ** * * * ** ** ** ** ** ** ** 0.91 0.92 0.75 0.87 Cd - dissolved * ** * ** ** ** ** ** ** ** ** 0.85 0.77 0.89 Cu - dissolved ** * * * * * ** ** ** ** ** ** ** ** ** 0.69 0.79 Pb - dissolved * * * * ** * * ** ** ** ** ** ** ** ** ** 0.90 Zn - dissolved * * ** * ** ** ** ** ** ** ** ** ** **