Verhandlungen derGesellschaft furOkologieBand 33

Biodiversity - from patterns to processes

Kurzfassungen der Beitrage zur 33. Jahrestagungder Gesellschaft fiir Okologie in Halle/Saale vom 8. - 12.9.2003

Herausgegeben im Auftrag der Gesellschaft fur Okologievon Jutta Stadler, Isabel! Hensen, Stefan Klotz und Hilde Feldmann

Halle/Saale 2003

VERLAG. DIE WERKSTATT

Inhaltsverzeichnis

Vorwort : 35List of symposia 37

Plenary talks 39

Part A: Ecological processes determining biodiversity pattern

Symposium 1: Biodiversity, spatial structures and habitat fragmentation

Effects of habitat loss and fragmentation on population dynamicsT. WlEGAND, E. REVILLA, K.A. MOLONEY * 50

Habitat fragmentation and local adaptation: a reciprocal replant-transplant experimentamong 15 populations of Lychnis flos-cuculi L.M. FISCHER, C. PERRET,D. GALEUCHET 51

Plant performance and biotic interactions of the common plant Lychnis flos-cuculi L. ina fragmented landscapeD. GALEUCHET, C. PERRET, M. FISCHER 52

Area-dependent effects of landscape structures on colonisation of spinach fields byAutographa gamma L.T. KLUG, A. GATHMANN, H.-M. POEHLING, R. MEYHOFER 53

Survival of crickets in habitats variable in space and timeS. HEIN, J. GOMBERT, C. STANKE, J. VOSS, H.J. POETHKE 54

Genetic erosion: Effects of habitat fragmentation on the diversity ofPoecilus lepiduspopulations (Coleoptera, Carabidae) ,M. PERSIGEHL, T. ASSMANN 55

Ecological interpretation of matrix effects on species richness can be obscured by thespatial scale of observationT. PURTAUF, C. THIES, K. EKSCHMITT, V. WOLTERS, J. DAUBER 56

Influence of vegetation structure and parasitism on a monophagous herbivore on fourspatial scalesA. HEIBWOLF, H.J. POETHKE, E. OBERMAIER 57

Interactions in a plant-pathogen-insect community at different spatial scalesA. KRUESS 58

Farming system and landscape context influence biocontrol of cereal aphidsI. ROSCHEWITZ, M. HtiCKER, C. THIES, T. TSCHARNTKE 59

Landscape complexity determines spider densities in cereal fieldsM.H. SCHMIDT, C. THIES, T. TSCHARNTKE 60

Effects of habitat fragmentation on a tri-trophic systemJ.A. ELZINGA, A. BIERE 61

Testing spatial ecology: some thoughts based on empirical evidence from plantsP. STOLL 62

Diversity effects on productivity and carbon: nitrogen sequestration in experimentalgrasslandsV.M. TEMPERTON, P. MWANGI, C. ROSCHER, B. SCHMID, W.W. WEISSER, E.-D.SCHULZE, N. BUCHMANN 63

Permeability of forest edges for non-forest plant species: soil seed bank compositionR. DEVLAEMINCK, M. HERMY 64

Plant species diversity of fragmented forests in Northwestern GermanyA. KOLB, M. DlEKMANN 65

Simulating bird species diversity in disturbed tropical rain forestsA. HUTH, K. REINHARD, P. KOHLER 66

Influence of agricultural landscapes on the population dynamics of plant pests and theirantagonistsU. VlSSER, K. WlEGAND, W. KOHLER 67

The impact of habitat fragmentation on species interactionsD. PRINS, C. GRASHOF-BOKDAM, V. VERBOOM-VASILJEV 68

Simulation model of bush-cricket population dynamics in relation to. habitatcharacteristics and temperatureB.C. WlDMANN, H.-H. THULKE, E. GOTTSCHALK, C. WlSSEL 69

Modelling structural diversity in natural beech forest: the potential role of unmanagedislands for species diversityV. GRIMM, S. RADEMACHER 70

Habitat heterogeneity, species diversity and keystone structures: the importance ofspatial scaleJ. TEWS, U. BROSE, V. GRIMM, F. JELTSCH 71

Spatial analysis of local species richnessH.WAGNER 71

Associational resistance may drive tree regeneration in pasture woodlands of the SwissJura MountainsC. SMIT, D.H. BEGUIN, H. MULLER-SCHARER 72

Edge effects in dry forest islands in the Comoe National Park (NE Cote d'lvoire)K.J. HENNENBERG, S. POREMBSKI 73

Effects of roads and fences on population persistance: when does fencing enhancesurvival probability?J.A.G. JAGER, L. FAHRIG 74

Investigations on the bioconcentration of heavy metals in archeo-, meso- andneogastropodsA.T.ABDALLAH 75

Plant-pollinator-interactions on Campanula glomerata L. (Campanulaceae) in afragmented landscapeA. ALTHOF, M. KRAEMER 76

Morphological variation and performance in relation to population size and habitatquality in Carlina vulgarisU. BECKER, H. BERG, D. MATTHIES 77

Vegetation and habitats of Voigaste Forest (Estonia)J. DENGER, H. TREMP, M. IVASK 78

Biodiversity of plants and phytophages in postmining landscapes of Lower LusatiaP. DENKINGER, U. BRORING, J. MRZLJAK, G. WIEGLEB 79

Plant species diversity in skirt communities. Investigations from Wendland/ LowerSaxonyM. ElSENBERG, J. DENGLER, C. HOBOHM, W. HARDTLE 80

Patterns of biodiversity in Austrian landscapes - examples from vascular plant speciesin a changing worldT. ENGLISCH, H. NlKLFELD 81

Anomalous sex ratio patterns and the linkage to habitat partitioning in a mangrove crabpopulationE. FAY, K. DIELE, U. BERGER 82

Development of strategies for an efficient network of conservation priority sites at theAtlantic Plateau of Sao Paulo (Brazil)B. FELINKS, K. HENLE, J.-P. METZGER. 83

Variability of site and landscape metrics at different spatial scalesD. GABRIEL, C. THIES, T. TSCHARNTKE 84

Allocation patterns in lianas and their supporters on differently disturbed sites in CostaRicaK. HEINEN, M. KAZDA 85

Spatial distribution patterns of powdery mildew (Erysiphales) taxa and selectedmorphological features in EuropeC.KAINZ , - 86

Seasonal fluctuations of species richness at fine scale in wooded pasturesF. KOHLER, M.A. PROGIN, J.-M. GOBAT, A. BUTTLER, F. GILLET 87

Structure and connectance of generalistic plant-pollinator comunitiesM. KRAEMER . 88

Patchy populations of the monophagous butterfly Cupido minimusJ. KRAUSS,I. STEFFAN-DEWENTER,T. TSCHARNTKE 89

Plant species diversity and species distribution in a tropical lowland rain forest in thePhillipinesG. LANGENBERGER 90

Effects of population size and density on reproduction of the self-incompatible plantHypochoeris radicataD. MATTHIES,T. REINHOLD 91

Correlation between genetic and spatial structure in a small natural population ofAnthericum liliagoA. PETERSON, I.V. BARTISH,J. PETERSON.. 92

Mechanisms of the competitiveness of beech and spruceI. M. REITER,A.J . NUNN, K.-H. HABERLE, R. MATYSSEK.. 93

Space sequestration of beech and spruceI.M. REITER, A.J. NUNN, K.-H. HABERLE, R. MATYSSEK 94

Carbon and nutrient accumulation in roots of grassland communities in dependence onplant diversity and growing seasonA. REUTER, C. NEBHOVER, C. BEIERKUHNLEIN, C. ENGELS 95

Hedgerows structural diversity and landscape metrics: Does exist a relationship?T. SITZIA, C. BERNARDI, E. CANTARELLO, L. MILAN * 96

Morphological heterogeneity in the estuarine populations of the cichlid Etroplussuratensis in Sri LankaK.B.SUNEETHA 97

The natural forest ,,Rothwald" (Lower Austrian Calcareous Alps) - a hotspot ofentomological diversityW. WAITZBAUER, P. ZABRANSKY 98

Reproduction and dispersal strategies of a clonal plant in a metapopulation: a simulationstudy with Hieracium pilosellaE. WlNKLER, K. JOHST, J. STOCKLIN 99

Biodiversity modelling at multiple spatial scalesT.X.YUE 100

Sponges in Limski Kanal, Croatia - abundance, diversity and distribution patternW. ZUCHT, M. SlDRI, F. BRUMMER 101

Symposium 2: Biogeography and macroecology

The global biodiversity of birdsW . J E T Z 104

Species distribution along a productivity gradientA. BONN, D. STORCH, K.J. GASTON 105

Ambient ocean productivity and the structure of marine fish communities: Merrett'shypothesis revisitedH . O . F O C K 106

Patterns in species diversity of polar megabenthos assemblages: Comparative casestudies in the eastern Weddell Sea (Antarctica) and northwestern Greenland Sea(Arctic)D. PlEPENBURG, J. GUTT 107

MacroecologicaJ^patterns of rare and endangered vascular plant species of GermanyE . W E L K 108

Global biodiversity of vascular plants - patterns and causesJ . MUTKE, G . KLER, A . HOSTERT, W . KTJPER, H . KREFT, D . RAFIQPOOR, W .

BARTHLOTT 109

Modelling succulent distribution arid plant species richness in Southern AfricaB. REINEKING, A. HUTH, C. WISSEL 110

Andean influence on lowland plant diversity - a biogeographical case study on vascularepiphytes in western AmazoniaH. KREFT, N. KOSTER, W. KUPER, J. NIEDER, W. BARTHLOTT I l l

River corridor plants (Stromtalpflanzen): New ideas to approach an old distributionpatternM. BURKART, M. WlCHMANN.. 112

Distribution pattern of plant traits and their environmental correlatesI. KUHN, W. DURKA, S. KLOTZ 113

Landscape and floristic species diversity along an altitudinal transect in the Eastern AlpsE. TASSER, U. TAPPEINER 114

Regional differences in niche characteristics of forest vascular plantsM. DlEKMANN, M. WULF 115

Determinants of the distribution and structure of savannas in AfricaS. HlGGINS 116

Diversity patterns of indicator plant groups for soil reactionS. SCHMIDTLEIN, J. EWALD 117

Taxa-area curves: A method for quantifying species taxonomic distinctness at differenthierarchical levelsM. MARIGNANI, C. RICOTTA, F. ROSSI, G.C. AVENA, C. BLASI 118

Predicting the species composition of matt-grass communities (Nardetalia) by a logisticregression modelC. PEPPLER-LISBACH, B. SCHRODER 119

Molecular ecology and biogeography of Arabidopsis thaliana (L.) Heynh.(Brassicaceae)M.H. HOFFMANN, H. SCHMUTHS, R. HORRES, K. BACHMANN 120

On the estimation of species numbers - how close can we come to reality?W.ULRICH 121

The relationship between the global and regional distribution of species changes duringphylogenyA. PRINZING 122

Molecular phylogeography and postglacial colonization routes of the dice snake (Matrixtessellata) and the viperine snake (N. maura)

D. GUICKING, U. JOGER, M. WINK 123

Island hoppers - the genesis of Canarian OrthopteraA. HOCHKIRCH 124

Results of a trial'to control the invasive neophyte Lysichiton americanus in Taunus(Hessia, Germany)B. ALBERTERNST, S. NAWRATH, R. WITTIG 125

Biodiversity of benthic diatoms in New Zealand lowland wetlandsT. BEIER, U. RAEDER 126

Ilex aquifolium - a bioindicator for climate change?S. BERGER, G.-R. WALTHER... 127

Do patterns of non-native plant species in Cheon-ju (South Korea) match those incentral European cities?I.K. CHOI, S. ZERBE,I . KOWARIK. . . . . . . . . . 128

Biodiversity patterns on the Serengeti Plains, Tanzania using birds as an indicatorT. GOTTSCHALK. : 129

Why is there a relationship between seed size and pollen-ovule ratio?L. G6TZENBERGER, I. KUHN, W. DURKA, S. KLOTZ 130

From processes to patterns: 'Biodiversity wave mechanics' as a comprehensive approachto examine macroecological patternsD.HASHMI 131

Hotspots of plant diversity in AfricaW. KUPER J. MUTKE, H. SOMMER,J. LOVETT, J. TAPLIN, P. LlNDER, A. BHAT,W. BARTHLOTT....7.. 132

From pitfall trap to regional biodiversity: Linking arthropod data to remote sensingclassifications •J. MRZLJAK, I. BRUNK, U. NOCKER 133

Comparison of rare species diversity for Russian diversity hotspotsI. VENEVSKAIA, S. VENEVSKY i 133

Symposium 3: Biological invasions and ecological interactions

Evolutionary change in invading plant populations and implications for biologicalcontrolH. MULLER-SCHARER, T. STEINGER 136

Is it the lack of biotic interactions in new environments that makes an invasive weed?J. JOSHI, K. VRIELING 137

Microevolution in invasive populations of garlic mustard (Alliaria petiolata): Growth,competitive ability, and anti-herbivore defenseO. BOSSDORF, D. PRATI, B. SCHMID, H. AUGE 138

Are invasive populations more competitive than native ones?G. JACOBS, E. WEBER, P. EDWARDS 139

Mother care does a bad turn to offspring: Importance of plant maternal effects in atripartite systemC. THALMANN, S. BACHER 140

Field studies on invasive Rhododendron ponticum populations in Ireland and potentialhybrid partners in Europe and North AmericaH. BRUELHEIDE, U. JANDT, A. ERFMEIER 141

DNA fingerprinting of invasive and natural Rhododendron ponticum L. populations andof potential introgression source taxaC. Ross, A. ERFMEIER, H. BRUELHEIDE 142

Evolutionary processes facilitate the invasive success of social parasitic honey bees(Apis mellifera capensis Esch.)S. HARTEL, P. NEUMANN, V. DIETEMANN, R.M. CREWE, R.F. A. MORITZ 143

The role of behavioral mechanisms for the invasion success of a parasite species(Aethina tumida Murray, Coleoptera: Nitidulidae)P.NEUMANN 144

Hostile takeover? Invasive predator species in Canarian laurel forestsE.ARNDT 145

Rosa rwgasa-shrubland in dry coastal dunesM. ISERMAN ; 146

The food web of a xeric grassland: Effects of invasion of Cynodon dactylon (Poaceae)S. RICKERS, M. WALLUS, S. SCHEU 147

Hemlock woolly agelids: Transforming ecosystem processes and landscapesB. STADLER, T. MULLER, R. COBB, D. ORWIG 148

Matrix models as tools for management suggestions - estimating abilities and limits in avirtual environmentN. NEHRBASS, F. HANSEN, A. OTTE, J. HUELS, J. THIELE, E. WINKLER 149

Could neophytes contribute to the increase of the landscape efficiencyC. HlLDMANN , 150

Mapping neophytes and surveying hemerobia - an approach for alien plant controlI. KURTZ 151

The importance of scale - effects of limited data on the prediction of invasion processesN. NEHRBASS, J. HUELS, A. OTTE, J. THIELE, E.

WINKLER 152Air temperature impacts on growth and establishment of non-native and native tree

speciesI. SAUMEL, I. KOWARIK 153

Large-scale prediction of plant diversity patterns: The bioclimatic model BIOM and itsapplication for conservationJ.H. SOMMER, C. NOWICKI, P.L. IBISCH 154

Plant invasions: Long term field tests on large spatial scalesE. WELK, K. SCHUBERT 155

Diversity changes in terricolous cryptogamic communities due to plant invasion andreforestation in Sardinia (Italy)

L. ZEDDA, F. FLORE, G. BRUNDU, A. COGONI 156

Symposium 4: Community effects of trophic interactions

Functional diversity of soil-biota communities affects an aboveground herbivore and its

natural enemyT. EGGERS, T.H. JONES, G.M. TORDOFF, J.H. LAWTON.. . . 158

Faunal decomposers affect plant community composition - a microcosm experimentM. BONKOWSKI, J. ROY 158

Effects of decomposers, below-1 and above-ground herbivores on plant growth andherbivore-parasitoid interactionsK. POVEDA, I. STEFFAN-DEWENTER, S. SCHEU, T. TSCHARNTKE 159

The dispersal of different trophic levels in a fragmented habitatS. E S C H , P . G . L . KLINKHAMER, E. VANDERMEIJDEN.. . 160

Fungal diversity in the host lichen Letharia vulpinaD. PERSOH, G. RAMBOLD 161

Enrichment with light: Effects of mixing depth on herbivore-producer dynamics in aplanktonic systemS.DlEHL 162

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Experimental evidence of ratio-dependence in a natural predator-prey systemS. BACHER, D. SCHENK, L.-F. BERSIER 163

Vegetation parameters influence herbivore-parasitoids-interactions on different spatialscalesT. MEINERS, B. RANDLKOFER, E. OBERMAIER 164

Differences in functional-group connectedness between disturbed and undisturbedgrasslandsJ. PERNER, W. VOIGT '. 165

Belowground effects of ants (Formicidae: Lasius jlavus) on soil fauna and plant growthC. PLATNER, M. SCHAEFER, S. SCHEU 166

Earthworm effects on plant growth and competitionS. WURST, S. SCHEU 167

Trophic levels differ in their sensitivity to climateW. VOIGT, J. PERNER, A. DAVIS, T. EGGERS 168

Mathematical modeling of priority effects and intraguild predation with applications toNamibian Odonata populationsO. RlCHTER, F. SUHLING 169

The influence of ungulate competition on diet selection, habitat selection, and browsingintensity in mountain forestsL. WENZELIDES, P.J. WEISBERG, H. BURGMANN 170

Forest distance affects diversity, reproduction success, and trophic interactions ofHymenopterans in tropical agroecosystemsA.M. KLEIN, I. STEFFAN-DEWENTER, T. TSCHARNTKE 171

Plant-pollinator interactions in Dutch wetlands: Evidence for secondary effects of heavymetal pollution on LepidopteraC. MULDER, A.M. BREURE,T. ALDENBERG... . . . . 172

Protozoa and plant growth: The microbial loop in soil revisitedM.BONKOWSKI 173

Diversity of soil fauna: Patterns on the regional scaleM. BRANDLE, A. HOPES, R. BRANDL 174

Density-dependent trophic interactions facilitating high local species diversity in fruitfliesT.S. HOFFMEISTER, M. ROHLFS 175

What are the specific characteristics of a suitable hostplant in the.Pontania-Salix-system?

A.KEHL 176Dog rose-rust fungus-tephritid fly interactions on a geographic scale

K. LEHMANN, C. RITZ, V. WISSEMANN, W. MAIER, F. OBERWINKLER, R.

BRANDL, T. TSCHARNTKE 177

N and P limitation in natural alder swampsJ. RACH, B. STEINBOM. 178

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Interactions between ants and spiders and phytophagous arthropods: Competition and

predation on different trophic levels

I. RACHOR, D. SANDERS, C. PLATNER, M. SCHAEFER 179

Resource heterogeneity in trees and insect herbivory

H. RUHNKE, M. BRANDLE, S. KLOTZ, R. BRANDL, M. SCHADLER 180

Effects of litter type and litter mixture on food web structure in aquatic microcosms

M. SCHADLER, T. ROTTSTOCK, C. STRUVE, R. BRANDL 181

The effects of litter diversity and invertebrate fauna on decomposition of tree litter

M. SCHADLER, R. BRANDL 182

Symposium 5: Contributions of population biology to biodiversity research

Sexual and clonal reproduction in alpine plant life

J. STOCKLIN, A.R. PLUESS, T. WEPPLER 184

Clonal plants in lake-shore grasslands: A 15 year study at lake Constance plussimulation modelling

E. WINKLER, D. PRATI, M. PEINTINGER 185

Seedling recruitment of an unpalatable weed in species-rich mountain grassland inrelation to grazing

U.A. TREIER, H. MULLER-SCHARER 186

Which stages in the life cycle of Hornungia petraea are responsible for the species

range limit?

H. LIENEWEG, C. KLUTH, H. BRUELHEIDE 187

Competition and allelopathy in Alliariapetiolata

D. PRATI, O. BOSSDORF 188

Population genetics of Polyommatus coridon - an endangered butterfly of fragmented

calcareous grasslands

J. KRAUSS, T. SCHMITT, A. SEITZ, I. STEFFAN-DEWENTER, T. TSCHARNTKE 189

Local adaptation of plant populations and consequences for restoration by sowing

A. BlSCHOFF, H. MULLER-SCHARER 190The consequences of soil macrofauna interactions with leaf litter diversity on

decompositionP. GASSER, S. HATTENSCHWILER 191

Does intraspecific aggregation delay loss of biodiversity in experimental plantcommunitiesU. MONZEGLIO, P. STOLL 192

A density and evenness experiment in biodiversity research

M. SCHMITZ, M. SCHERER-LORENZEN, P.N. MWANGI, W. WEISSER, C. ROSCHER,B. SCHMID 193

Population patterns of vascular plants in deciduous forests of North-west GermanyF. BARSCH, M. DIEKMANN 194

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Characterization of niche differentiation in early- and tnid-successional plantcommunities: A field experimentO. BAUDOIS, L. WACKER, S. EICHENBERGER, B. SCHMID 195

Management of the yellow-bellied toad (Bombina variegata)

M. DlETERICH 196Genetic population structure of Calathus erratus (Carabidae) in post-mining landscapes

in Lower LusatiaM. GUTH, J. MRZLJAK, G. WIEGLEB 197

Important elements of a plant population viability analysis - a sample application forCampanula glomerata L.U. HEINZE, I. HENSEN 198

Effect of landscape fragmentation on the genetic diversity in the common lizard(Zootoca vivipara)S.HOFMANN,K.HENLE,W.-R .GROBE 199

Genetic structure of natural populations in different ecosystems revealed by geneticmarkersR. KAUTENBURGER, P. MULLER 200

Application of artificial substrata for the investigation of macroinvertebratecommunitiesC. KUGELSTADT, J. DAUBER, R. KRISTEN, V. WOLTERS 201

Theoretical models as a tool for assessing species multi annual reproductive pattern. Acase study of the sea turtles

A.G. MAZARIS, Y.G. MATSINOS 202

Astacus astacus L. - doomed to extinction? A population viability analysisK. MEYER, K. GIMPEL. . . . . 203

Hybridization in Senecio hercynicus and S. ovatus in the "Nationalpark Hochharz":morphological and molecular studiesD. RAUDNITSCHKA, I. HENSEN, C. OBERPRIELER 204

Quantitative genetic variation in Trifolium montanum L., an endangered plant ofcalcareous grasslandsM. SCHLEUNING, M. NlGGEMANN, D. MATTHIES 205

Pollination ecology of Polylepis australis in fragmented Po/_y/ep«-woodlandsP. SELTMANN, I. HENSEN, A. Coccucci, D. RENISON 206

Effect of herbivore density and plant community on performance of creeping thistleCirsium arvense

B. TSCHANZ, D. SCHENK, S. BACHER 207

Symposium 6: Dispersal processes

Patchy dispersal permits coexistence

M. POTTHOFF, K. JOHST, J. GUTT, C. WlSSEL 210

On the viability of metapopulations: Individual dispersal behavior mattersS.K. HEINZ, K. FRANK, C. WISSEL 211

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A movement based landscape index to predict the mating success of an arboreal speciesin a structured landscapeB. GRUBER, K. HENLE, K. FRANK 212

Reconstructing dispersal history - microsatellite polymorphisms supporting an esterasegradient of Carabus auronitens (Col., Carabidae) south-west of MunsterC. DREES,H. TERLUTTER, F.-J. NIEHUES,J.-Y. RASPLUS,F. WEBER. . . . . 213

Pleistocene speciation and patterns of Holocene dispersal of European reptiles fromMediterrranean refugiaU. JOGER, D. GUICKING, S. KALYABINA, P. LENK, Z.T. NAGY, M. WlNK 214

Genetic consequences of long distance dispersal eventsR. BlALOZYT, B. ZlEGENHAGEN, R. PETIT 215

Dispersal and migrations in the yellow-bellied toad Bombina variegataG. GOLLMANN, B. GOLLMANN 216

Why and with what consequences do jays (Garrulus glandarius) hide acorns (Quercusspec.) with such an effort?H. ELLENBERG 217

Modelling movement and migration patterns of the great ramshorn, Planorbariuscorneus (Gastropoda: Planorbidae)F.JOPP.......; 218

Intermediate levels of habitat disturbance favor sexual reproduction in the ant-dispersedclonal herb Ranunculus ficaria

F. JUNG, K. BOEHNING-GAESE, A. PRINZING. 219

Dandelion seed dispersal - the wind speed doesn't matterO. TACKENBERG, P. POSCHLOD 220

Dispersal of typical woodland species by roe deer and wild boarK. SOMMER, M. SCHMIDT, W.-U. KRIEBITZSCH, G. V. OHEIMB 221

Can dispersal determine local distribution of plant species in cultural landscapes?A.BISCHOFF 222

What can data on seed dispersal distances tell us about plant migration?S.HIGGINS.T. . 223

Dispersal-mediated disease persistenceF. HANSEN, M.R. HUTCHINGS, P.C.L. WHITE 224

Ecosystem engineering by moles (Talpa europaea) facilitates nest founding by mound-building ants (Formica exsecta)

P. BLISS, A. KATZERKE, R.F.A. MORITZ, P. NEUMANN 225Seed germination ecology of endangered river corridor plants

K. GEIBLER, A. GZIK 226

Disturbances may strengthen the role of mutualism in communities: A...nts and plantsalong an inundation gradientN. HAMMOUTI, E. HAMMER, S. HUTTER, K. BOHNING-GAESE, A. PRINZING 227

Movement behaviour of the bush cricket Platycleis albopunctata in a heterogeneouslandscapeS. HEIN, J. GOMBERT, T. HOVESTADT, H.J. POETHKE 228

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Dispersal behaviour in fragmented landscapes: A formula for the reachabilities ofpatchesS.K. HEINZ, K. FRANK, C. WISSEL , 229

Analyzing vegetation dynamics in fens using a spatially explicit habitat suitabilitymodel: A case study at Delme valleyC. HIEPE, R. SEPPELT 230

Dispersal of the European pond turtle from Pleistocene refugiaP. LENK, U. FRITZ, D. GUICKING, U. JOGER, M. WINK 231

How to assess the transport of plant diaspores by traffic? A new methodologicalapproachM. VON DER LlPPE, I. KOWARIK 232

Sedimentation of seeds during flooding events: Long-distance versus short-distancedispersalK. VOGT,K. JENSEN 233

What drives the genetic diversity of an epiphytic lichen?

S. WERTH, C. SCHEIDEGGER 234

Symposium 7: Disturbances and ecosystem dynamics

Scale dependence in species richness and recasting the intermediate disturbance

hypothesis (IDH) in a multipatch frameP.S. WHITE, A. JENTSCH, C. BEIERKUHNLEIN '. 236

Linking residual spatial patterns from habitat distribution models and disturbance bymeans of autocorrelation analysisT. DlRNBOCK, S. DULLINGER *... ... 237

Diversity and disturbance in Moroccan shrub- and grasslandG. JURASINSKI, C. BEIERKUHNLEIN , 238

Variation in the regeneration processes of plants at fire prone sites in the province ofMurcia (SE Spain) •C . O H L . . . . . ^ . 1 239

Using native and non-native plant diversity combination to estimate vegetation/environment change across scalesM . L I , N . K R A U C H I 240

Fire history of remnant left by fire in Pinus contorta dominated forestsA.MEYN .; 241

Dendroecology and forest disturbance history: the case of southern temperateNothofagus-mm forests in ChileW.POLLMANN 242

Plant colonization after soil disturbance in forests - colonization means, seedavailability, and site conditionP. MAYER, C. ABS, A. FISCHER 243

Long-term effects of disturbance on the occurrence of an endangered lichen in apasture-woodland landscapeJ. KALWIJ, H. WAGNER, O. WILDI, C. SCHEIDEGGER 244

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Grounding icebergs enhance regional benthic diversity in Antarctica

J. GUTT, D. PlEPENBURG 245Impact of soil grubbing by wild boar on plant biodiversity in grassland

T. LINNERT, S. KLOTZ, J. STADLER 246

Plant functional types and selective disturbance - a challenging relationshipS. FRIEDRICH, A. JENTSCH 247

Habitat models for plant functional types in relation to grazing, soil factors and fertility

A. KUHNER, M. KLEYER 248

Ecological and socio-economic assessment of management systems for open landscapes- an integrated landscape model approachB. SCHRODER, R. BIEDERMANN, M. KLEYER. . . . . 249

Plant diversity in montane grasslands has no direct effect on the stability of carboncycling under a changing climateA. KAHMEN, N. BUCHMANN 250

Towards the island biogeography of Chile: Results from bird diversity analyses andperspectives for molecular phylogeneticsI. HAHN, U. ROMER, R. SCHLATTER 251

Does mycorrhizal fungal diversity determine plant biodiversity?B. BORSTLER, C. RENKER, F. BUSCOT 252

Does remote volcanism change mire landscapes? Influence of tephra deposition onmires in Hokkaido, JapanS.HOTES 253

Experimental approach to explain the differential response of four grass species afterwindthrowS. KAMMERMEIER, U. LUGINBUHL, H. BRUELHEIDE 254

Effects of small-scale soil disturbance on plant biodiversity in grasslandT. LINNERT, S. KLOTZ, J. STADLER 255

Secondary succession after windthrow - the role of disturbance intensity and pre-disturbance state for determining diversityU. LUGINBUHL, H. BRUELHEIDE 256

Impact of a 100-year flood on habitat structure and metapopulation dynamics ofBryodema tuberculataM . R E I C H 257

Diversity of arbuscular mycorrhizal fungi in a phosphate polluted grasslandC. RENKER, V. BLANKE, F. BUSCOT 258

Climatic oscillations and the marine ecosystem: A comparative study of seabird's lifehistory responsesH.SANDVIK 259

The population dynamics of four woodland grass species in relation to disturbanceintensity after windthrowC. SCHERWING, U. LUGINBUHL, H. BRUELHEIDE 260

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Predicting long-term effects of eutrophication in salt marshesH.J. VAN WIJNEN, J.P. BARKER 261

Symposium 8: Effects of genetically modified organisms on biodiversity

Extending the diversity of effects monitoring: A clue to improving the assessment ofunknown impacts?

H. BACKHAUS 264

Effects of growing Bt-maize on non target LepidopteraA. GATHMANN, L. WIROOKS, D. BARTSCH, I. SCHUPHAN 265

Effects of Bt-maize on terricole, saprophagous Diptera-larvaeW . B U C H S , S . PRESCHER,A. MiiLLER, O. LARINK... 266

Impact of transgenic Bt- and conventional maize on microbial indicators in anagricultural soilM. RAUBUCH, K. ROOSE 267

Morphological variation between Capsella bursa-pastoris (L.) Med. plants fromdifferently managed oilseed rape fieldsH.BEISMANN 268

Spatial planning of GMO monitoringF. GRAEF, F. BERHORN, W. ZUGHART, B. HOMMEL, U. HEINRICH, U. STACHOW,

A. WERNER, 269

Mathematical models for gene flow from GM crops in the environmentO. RlCHTER, S. MEIER-BETHKE, J. SCHIEMANN, R. SEPPELT 270

Transgenic maize: monitoring potential insect resistance developmentD. BARTSCH, A. GATHMANN, T. MUCHER, C. SAEGLITZ, I. SCHUPHAN 271

Dispersal and abundance of oilseed rape (Brassica napus L., Brassicaceae) in NorthernGermany: Field studies in Bremen and Lower SaxonyG. MENZEL, B. BRECKLING , , 272

Modelling population interactions and dispersal of oilseed rape (Brassica napus L.,Brassicaceae)"U. MIDDELHOFF, B. BRECKLING 273

Glufosinate treatment of weeds results in ammonia emission by the plantsR. MANDERSCHEID, S. SCHAAF, M. MATTSSON 274

Symposium 9: Emergent ecosystem properties: From individual properties tocommunity dynamics

The concept of emergent properties in ecology: An approach to analyse complex levelcrossing processesH. REUTER, F. HOLKER 276

Drought and seedling survival in tropical rain forest plants: Linking drought resistancewith species distributionB. M. J. ENGELBRECHT, L. S. COMITA, R. CONDIT, M. T. TYREE, T. A. KURSAR. .. 277

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Response of plant functional traits to land-use changes in European mountain grasslandsM. BAHN, K.BIANCHI, A. CERNUSCA i 278

The role of biodiversity for element cycling and trophic interactions: An experimentalapproach in a grassland communityC. ROSCHER, J. SCHUMACHER, W.W. WEISSER, B. SCHMID, E.-D. SCHULZE 279

Effects of biodiversity on individual plant speciesP. N. MWANGI, M. SCHMITZ, M. SCHERER-LORENZEN, W. W. WEISSER, C.ROSCHER, E.-D. SCHULZE,J. SCHUMACHER, B. SCHMID... 280

Spiders optimise the use of their venom

W. NENTWIG, E. WIGGER, B. WULLSCHLEGER, L. KUHN-NENTWIG 281

Mechanisms creating odonate community structure in desert wetlandsF. SUHLING, T. PADEFFKE, F. JOHANSSON, O. RICHTER 282

A genetic contribution to biodiversity - Drosophila egg-laying behaviour as habitat-specific gene-environment interaction

T. S. HOFFMEISTER, M. ROHLFS 283Aggregability of population dynamics

A. GROS,M. HlNSCH,T. HOVESTADT,'H.J. POETHKE 284

Symposium 10: Invertebrate social systems

Geopgraphic patterns of honey bee morphologyS.FUCHS.. . 286

Choice of protection areas for the western honey bee (Apis mellifera, L.) conservationF.B. KRAUS, R.F.A. MORITZ 287

Movement of Apis mellifera capensis pseudoclone workers into wild colonies of A.m.scutellata in the Kruger National Park and its implications for rural beekeepersP. KRYGER, R, CREWE. 287

Mitochondrial diversity of Apis mellifera iberica from the Mediterranean basinP. DE LA RUA, R. HERNANDEZ, J. GALIAN, J. SERRANO 288

A primary screening of the honey bee italian populationA. MARINO, M. LODESANI, A.G. SABATINI 288

When ant-mutualists becom parasites: Aspects of extreme life-history evolution amongmyrmecophilous Lycaenidae butterflies

K. FIEDLER 289

Hawaiian Islands in Scottish Highlands - Microdon mutabilis ,a myrmecophiloushoverflyK. SCHONROGGE, J. A. THOMAS, G . W . E L M E S 290

Specialisations and host associations of Maculinea butterflies - a genus of ant socialparasitesJ.A. THOMAS 291

Does the functional biology of Myrmica ants make them particularly susceptible toparasitism?G.ELMES 291

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The regulation of emigration rate and its relevance for the dynamics of meta-populations: Implications for the MacMan projectT. HOVESTADT, H.-J. POETHKE 292

The key to the caterpillars of Maculinea teleius, M. nausithous,and M. alconE. SLIWINSKA, M. WOYCIECHOWSKI 293

Host plant traits rather than ant cues influence the oviposition preference of Maculineanausithous (Lepidoptera: Lycaenidae)M. MUSCHE, C. ANTON, J. SETTELE. 294

Symposium 11: Spatially explicit models linking abiotic and biotic processes at thelandscape level

Spread and persistence of disease in a heterogeneous landscapeF. HANSEN, M.R. HUTCHINGS, P.C.L. WHITE 296

Live and get dry: A spatially explicit population model for Namibian Odonata •E.BRAUNE 297

Spatially and temporally explicit links between socio-economic attributes and landcoverchangesE. HIETEL, R. WALDHARDT, A. OTTE 298

Integrating biotic and abiotic landscape pattern: Towards the object-based definition ofsite adapted landscape structuresM. MOLLER, A. LAUSCH, M. VOLK 299

Eco-hydrological modelling at the landscape scale: Recent trend and future challengesK.SCHULZ 300

Effects of land-use changes on sources, sinks and fluxes of carbon in Europeanmountain areasA. CERNUSCA 301

Vegetation forms of the grassland in the northeast German lowlands and their suitabilityas input category for yield modelling

T. KAISER, H. KADING 302

Modelling vegetation development on the basis of hydrological and land-use data

G. VATER, U. BANGERT, J. HEIMANN, I. KOWARIK 303

Part B: Ecology of selected ecosystems/landscapes

Symposium 12: Biodiversity research in forest canopies

A mature natural forest canopy under elevated CO2C.KORNER.. 306

Carbon storage in adult temperate forest treesG . H O C H , C.KORNER '. 307

Tracking the elusive: Patterns of food plant utilisation in arboricolous AuchenorrhynchaH. NICKEL 308

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The mechanisms structuring arboreal arthropod communities in disturbed and primaryforest ecosystems in temperate Central EuropeA.FLQREN 309

Comparing Amazonian epiphyte communities - what do microspatial diversity patternstell us about ecological conditions?N. KOSTER, H. KREFT, V. SCHMIT-NEUERBURG, J. NIEDER, W. BARTHLOTT 310

Phenological variability of three important tree species of the Leipzig floodplain forestM. ARLAND, S. KLOTZ, W. MORAWETZ 311

Diversity of macro-arthropods in the canopy of a central European floodplain forestE. ARNDT, D. BERNHARD, O.-D. FINCH.. . 312

High temporal resolution increment measurements in floodplain mixed forest standsS. BONN, A. ROLOFF 313

Lichens as indicators for changes of air pollution in forests of South-Western GermanyC. DOLNIK, V. WlRTH i 314

Fruiting ecology on North Queensland endemic palm Normanbya normanbyi L. H.BaileyC. GEYER,D. SATTLER,W. MORAWETZ...: 315

Host preference and vertical distribution of cryptogamic epiphytes in a primary uppermontane oak forest (Costa Rica)I. HOLZ, S.R. GRADSTEIN 316

LAK - The Leipzig Canopy Crane ProjectP. HORCHLER, W. MORAWETZ 317

Flowering ecology on North Queensland endemic palm Normanbya normanbyi L. H.BaileyD. INKROT, D. SATTLER, W. MORAWETZ 318

Herbivory in the canopy of the Leipzig floodplain forestJ. MITSCHERLING, P. HORCHLER, W. MORAWETZ 319

Spatial patterns of lignicolous fungi diversity on different tree hosts in the canopy of afloodplain forest of LeipzigM. UNTERSEHER, P. OTTO, W. MORAWET 320

Symposium 13: Ecology of river landscapes

The impact of flooding on soil seed bank dynamics in alluvial meadowsN.HOLZEL 322

Grassland diversity in the floodplain of a big riverC.FRANKE 323

Water, wind and willows: Dispersal timing, seed germination and distribution of willowseedling .A. KEHL, A. REUTER, G. AAS 324

The effect of river engeneering structure on the suitability of inshore habitats for fish - acase study from the Middle Elbe RiverM. SCHOLTEN, C. WlRTZ, E. FLADUNG 325

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Fish species diversity in the International Wetlands, Alma-Gol, Adji-Gol, and Ala-Golof Golestan Province, North of IranR. PATIMAR, B.H. KlABl 326

Dispersal of terrestrial invertebrates by rivers - an important ecological processC. TENZER, H. PLACHTER 327

Dispersal of carabid beetles on river banks and its significance for the restorationecology of floodplains (Coleoptera, Carabidae)J. GUNTHER, F. PRUBNER, T. ASSMANN 328

The impact of flooding on the diversity of arthropods - comparing patterns in thediversity of two trophic groupsJ. ROTHENBUCHER, M. SCHAEFER.... 329

Multiple physiological strategies used by tiger beetle larva (Coleoptera: Cicindelidae) tosurvive floodingM. ZERM, O. WALENCIAK, J. ADIS 330

Bembidion velox L., 1758 (Col., Carabidae) - a target species for riparian habitats of theriver Elbe

M. KLEINWACHTER, T. RlCKFELDER 331Ecological risk assessment for wetland vegetation in the Spreewald under conditions of

altered water supplyU. BANGERT, G. VATER, J. HEIMANN, I. KOWARIK 332

Ground beetle communities of two floodplain forests in eastern Austria: Indicatingnatural and dynamic conditions?T.DRAPELA 333

A comparison of woodland species in ancient and recent woodlands in the "LeipzigerAuenwald"J .GLASER 334

Watershed management at the Elbe River Basin: Transfer of complex scientific researchresults into a user oriented Decision Support System (DSS)S. KOFALK, M. SCHOLTEN, F. KOHMANN 335

Biodiversity of aquatic Hyphomycetes in polluted habitats in central GermanyG. KRAUSS, D. SCHLOSSER 336

Predicting grassland species distributions after river regulationI .LEYER 337

Concepts for a sustainable development of a catchment area - the Elbe RiverM. SCHOLTEN, S. KOFALK, F. KOHMANN 338

Ecological succession of aquatic Hyphomycetes in polluted habitats usingmorphological and molecular methodsM. SOLE, D. SCHLOSSER, G. KRAUSS 339

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Symposium 14: Ecology of semi-arid environments

Do grasslands have a memory: Modelling phytomass production of a semiarid SouthAfrican grasslandT. WIEGAND, H.A. SNYMAN,K. KELLER, J.M. PARUELO 342

Sophisticated grazing strategies for coping with unpredictable precipitation - amodelling approachB. MULLER, A. LINSTADTER, K. FRANK, C. WISSEL 343

Diversity of soil-growing lichen communities in the quartz fields of the Knersvlakte(RSA)L. ZEDDA, G. RAMBOLD 344

Vegetation structure and the abundance of the black-tailed tree rat (Thallomysnigricauda)J. MEYER, R.BRANDL 345

Strategies of desert and coastal halophytes to avoid salt injury - salt avoidance via salttolerance <H.-W. KOYRO, C. HARROUNI, S. DAOUD, N. GEISSLER, S. HUSSIN, B.

HUCHZERMEYER 346

Rainfall distribution and persistence of populations of annual plants in a semi-desertM. K6CHY, K. TlELBORGER 347

Chorological shifts between plant geographical regions in SW Jordan: Evidence fromtherophyte and perennial plant spectraU.SUKOPP 348

Clonal structure of Alhagi sparsifolia and Populus euphratica populations in theTaklamakan desert .M. MANEGOLD, U. JANDT, D. GRIES, A. FOETZKI, F.M. THOMAS, M. RUNGE, H.BRUELHEIDE 349

Community organization and biodiversity of granivorous ants along an ecologicalgradient in MongoliaM. PFEIFFER,L. CHIMEDREGZEN,K. ULYKPAN 350

Grazing and degradation on hillsides in semiarid CubaA. WEZEL, S. BENDER 351

Influence of termite activity on small scale pedodiversity in Southern AfricaA. GRONGROFT, A. PETERSEN, U. SCHMIEDEL, G. MIEHLICH 352

Macropod communities: Key players in recovery and management of degradedrangelands in arid and semi-arid AustraliaS. KLOSE, A.C. BALL, C. KLANK 353

Regeneration ecology of two woody perennials in southern Mongolian mountainsteppesK. RONNENBERG,K.WESCHE.. . 354

Plant communities of SW Jordan: The traditional classification and the multivariateordination approachU.SUKOPP 355

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Small mammal burrows as special habitats in southern Mongolian mountain steppesK. WESCHE, K. NADROWSKI, D. ENKHJARGAL, R. UNDRAKH 356

The population ecology of Potentilla Ikonnikovii, an endemic plant species of the GobiAltaiK. WESCHE, R. UNDRAKH 357

Year to year changes in species composition of fallow vegetation in Sahelian NigerA. WEZEL, E. SCHLECHT 358

Symposium 15: Patterns and models in forest ecology and management

Patterns of ecosystem change at high elevations across the Holocene: A model-basedreconstruction of forest dynamics in SwitzerlandC. HEIRI, H. BUGMANN, W. TINNER, O. HEIRI, H. LISCHKE. 360

Predicting the dynamics of mountain forests after windthrowA. RAMMIG, P. BEBI, H. BUGMANN, W. SCHONENBERGER ... 361

Vegetation reaction to the size of disturbances - examples from forestsD. JENSCH '. , 362

Model evaluation of long-term carbon-storage and groundwater recharge under varyingrotation length, thinning strategies and choice of tree speciesF-W. BADECK, P. LASCH, J. ROCK, F. SUCKOW 362

Tree establishment strategies of Fabales in Amazonian floodplainsP.PAROLIN '.. 363

About the age-related decline in net aboveground primary production of mangroveforestsU. BERGER, H. HILDENBRANDT 364

The effect of forest stand type on macrofauna abundance and diversity in old- andmedium-aged mixed and pure stands of beech and spruceA. ROTHLANDER, A. SUHRIG, W. ENTLING, M. SCHAEFER 365

What can we learn from spatial genetic patterns in forest trees? An example with fir(Abies spec!) in range wide to individual studiesB. ZlEGENHAGEN, R. BlALOZYT, S. LlEPELT 366

Tropical rain forests with disturbed recruitment lose their stability - a simulation studyA. HUTH, P. KOHLER 367

Modelling the amount and distribution of dead wood in natural beech forests: the modelBEFORE-CWDC. RADEMACHER, S. WINTER 368

Classification and self-organization of historical landscape patternsJ.BOLLIGER 369

Modelling individual tree growth and competition in dependence on forest structureR.GROTE 370

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The impact of root- and crown-competition on diameter and spatial distributions invirtual forestsF.-J .KNAUFT 371

Model-based assessment of management strategies in European forests - results of theEU project SilviStratP. LASCH, F.-W. BADECK, M. LINDNER, F. SUCKOW, C. FURSTENAU 372

Modelling post-fire succession in a Mediterranean Forest: Implications from aMarkovian approachD. MATOSSIAN, Y.G. MATOSINOS.. 372

Does tree species composition affect weevil beetles?T. GRUTZNER, A. ROTHLANDER, A. SUHRIG 373

Impact of commercial harvesting on the ecology of the medicinal plant HarpagophytumprocumbensB. HACHFELD, U. SCHIPPMANN 374

Mechanisms promoting tropical tree species richness investigated with a process-basedforest growth modelP. KOHLER, A. HUTH 375

Ecological investigations of short-lived tree species with special regard to Sorbusaucuparia L. and Be tula pendula ROTHD. KREYER, S. ZERBE 376

Improving the simulation of structural forest patterns in a forest patch modelA.C. RISCH, A. WEHRLI, H. BUGMANN, A. HUTH 377

Species richness and environmental factors in deciduous forests of Northwest GermanyB. SCHUSTER, M. DIEKMANN 378

The effect of litter quality on macro fauna abundance and diversityI. VOLLHARDT, A. ROTHLANDER, A. SUHRIG 379

Testing a forest patch model: Comparison of measured and simulated stand structure onpermanent plots in Swiss mountain forestsA. WEHRLI, A.C. RISCH, H. BUGMANN, A. HUTH 380

Difficulties an'd "chances of analyzing DNA (ancient DNA) from macrofossils of foresttrees. A long way to temporally authentic patternsB. ZlEGENHAGEN, S. LlEPELT 381

Symposium 16: Progress in research about CO2 impacts on plants and vegetation

Changes in water-use efficiency of trees under elevated CO2 inferred from carbonisotope analysisM. SAURER, P. CHERUBINI, R. SIEGWOLF 384

Atmospheric CO2 enrichment and defoliation manipulating the carbon balance of alpineconifers at treelineI.T. HANDA, S. HATTENSCHWILER 385

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CO2 and temperature effects on biomass production and stem wood anatomy of scotspine (Pinus sylvestris L.)D. ZlCHE, D. OVERDIECK 386

Mechanisms and quantification of competitiveness in woody plantsT. GRAMS, A. KOZOVITS, R. MATYSSEK 387

Effect of CO2 elevation on leaf chlorophyll contentR. MANDERSCHEID, H. J. WEIGEL 388

Analysis of plant functional types: Causes and consequences of community alterationsunder elevated CO2U. GRUTERS, S. JANZE, U. HERTSTEIN, C. KAMMANN, L. GRUNHAGE, H.-J. JAGER 389

Does atmospheric CO2 enrichment influence the biodiversity of a ruderal plantcommunity?S.WEBER, A. FANGMEIER... 390

Effects of free air carbon dioxide enrichment (FACE) on canopy conductance andtemperature of winter barley and sugar beet .S. BURKART, C. GROBEKATHOFER, K.-P. WITTRICH, C. FRUHAUF, R.

MANDERSCHEID, H.-J. WEIGEL 391

Moderate CO2 enrichment changes grassland community of the Giessen FACE,GermanyS. JANZE, U. GRUETERS, U. HERTSTEIN, C. KAMMANN, L. GRUENHAGE, H.-J.JAEGER 392

Feedback effects of long-term CO2 enrichment (Giessen-FACE) on trace gas fluxes(N2O, CH4) in a grassland ecosystemC. KAMMANN, L. GRUENHAGE, U. JAECKEL, C. MUELLER, H.-J. JAEGER 393

Growth and reproduction of the alpine grasshopper (Miramella alpina) under elevatedCO2 at treelineR. ASSHOFF, S. HATTENSCHWILER 394

Effects of free air CO2 enrichment on leaf gas exchange in ruderalsM. ERBS, B. EICKLER, A. FANGMEIER 395

Effects of elevated O3 at two irrigation levels on the 813C of four grassland species in anatural habitatM. JAGGI, M. VOLK, J. FUHRER 396

No short-term, but long-term effects of elevated CO2 on leaf dark respirationJ. KATTGE, G. ESSER 397

Response of a pre-alpine postare to long-term elevated ozone exposureM. VOLK, A. BLATTER, P. BUNGENER, F. CONTAT, M. GEISSMANN, M. MONTANI,J .FUHRER 398

Symposium 17: Soil ecology

Relationship between soil microbial biomass-C and extractable dsDNA from soilT.-H. ANDERSON, E.V. BLAGODATSKAYA, S.A. BLAGODATSKY 400

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Microbial biomass of an arable soil as affected by elevated atmospheric CO2concentration

0 . HEINEMEYER, R. MARTENS, A. PACHOLSKI, H.J. WEIGEL 401

Memory effects of microbial communities in drained soils

J. RYSER, J. JOSHI, B. SCHMID 402

RAPD marker variability of different earthworm (Lumbricus terrestris) populationsfrom western Germany

R. KAUTENBURGER, K. BURGER, P. MULLER 403

Nematode trophic structure as indicator of decomposition pathways

L.RUESS , . 404

Spatial variety of soil biota: Diversity of types vs. diversity of species

U.GRAEFE. 405

Spatio-temporal relationships between carabids and pests in winter oilseed rape

D.FELSMANN,W.BUCHS. . . . 406

Dynamic association between Collembola and soil microbiota during forestdevelopment

M. CHAUVAT, A.S. ZAITSEV, V. WOLTERS 407

The influence of the ecologically orientated transformation of forests on the soilmacrofauna community

J.-A. SALAMON, A. ZAITSEV, V. WOLTERS 408

Abundance and trophic structure of macrofauna decomposers on alpine pastureland(Central Alps, Tyrol)

J. SEEBER, E. MEYER, S. SCHEU 409

Interactions of microflora, Collembola and predatory mites in decomposing litter of

different quality

D. ALBERS, M. SAUL, J. ALPHEI 410

Effect of sustainable agriculture on the turnover and the pools of carbon and nitrogen insoils1. RtfHLING, A. K6LBL, R. GUTSER •. 411

Collembolan biodiversity and C-isotopic composition in an agroecosystem as influencedthrough atmospheric CO2 enrichmentC. STICHT, S. SCHRADER, A. GIESEMANN,.O. LARINK, H.-J. WEIGEL 412

Effects of canopy derived dissolved and paniculate organic matter on soil organic

matter dynamics

. B. MICHALZIK, B. STADLER 413

Water and matter fluxes investigated within a complex agroecosystem

B. HUBER, M. WlNTERHALTER, G. GERL, G. MALLEN, H.P. HARTMANN 414

Root respiration in differently managed and abandoned mountain grasslands in the

Central Alps

M. BAHN, M. KNAPP, A. CERNUSCA 415

Wood patches in an urban environment - are they influenced by the heat-island-effect?

R. DEICHSEL 415

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The influence of bacteria based diets on the reproduction of CollembolaT. FARNSTEINER, S. PIEPER, G. WEIGMANN 416

Succession of collembolan ecotypes in Calamagrostis epigejos dominated grasslands inthe post-mining landscape of LusatiaR. KRAWCZYNSKI, U. BRORING 417

Role of soil fauna for plant performance in a plant diversity gradientS. PARTSCH, A. MILCU, S. SCHEU 418

Effects of microclimatic changes on soil nematodes in a temperate grasslandL. WOLTMANN, J. ALPHEI, C. PLATNER, M. SCHAEFER 419

Impact of cattle grazing on soil nematode communities - does above-ground herbivoryenhance below-ground diversity?P.ZOLDA 420

Part C: Socio-economic processes, sustainable land-use and conservation ofbiodiversity

Symposium 20: Biological-ecological information systems

Beyond names: Using taxon concepts to link biological factsW. BERENDSOHN 422

The LEDA traitbase: A database of life-history plant traitsI.C. KNEVEL, R.M BEKKER, M. KLEYER... 423

Examples for the application of a database of plant traits in nature conservation andrestoratiohA. DANNEMANN, A.-K. JACKEL, M. KLEYER, P. POSCHLOD 424

BiolFlor - a database on biological and ecological traits of the vascular flora ofGermanyS. KLOTZ, I. KUHN, W. DURKA 425

Collation of plant ecological data: Association between CSR-strategies, Ellenbergvalues, plant families and plant traitsJ. FRANZARING, A. FANGMEIER, R. HUNT 426

Plant strategy types in plant communities of Saxony-AnhaltD.FRANK 427

An information system for the selection of umbrella species for nature conservationW. ZEHLIUS-ECKERT.... 428

Spelling out alpha-, beta- and gamma-diversity in coniferous forests of the AmericanPacific NorthwestJ. EWALD, J. OHMANN , 429

FloraWeb - portal, network and toolbox for information on German plant diversity andvegetationR. MAY, F. KLINGENSTEIN, H. WEBER, H.-G. FINK 430

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Internet technologies as a basis for environmental information systems — research andpresentation of ecological dataC. MUCKSCHEL, W. KOHLER 431

Factors generating relative abundance distributions - a research projectM. OLLIK, W. ULRICH 432

Biodiversity - knowledge transfer via multimediaW. STICKAN, M. STEINKE 433

Symposium 22: Governance processes in biodiversity management

The global • regulation of genetic resources access and benefit sharing and theinternationalisation of the stateU. BRAND, C. GORG 436

Policy-window for the declaration of protected areas - a comparative case study ofEastern Germany and GuatemalaH. GARRELTS, R. BIRNER, H. WITTMER 437

Designing cost-effective governance structures at the regional level: The example of acompensation payment scheme for the conservation of two Maculinea butterflies inthe district Westerwaldkreis

F. WATZOLD, K. JOHST, M. DRECHSLER, J. SETTELE, H. BERGMANN 438

An experimental study on people's perception and appreciation of plant diversityP. LINDEMANN-MATTHIES, X. JUNGE, D. MATTHIES 439

Success and failure factors of participatory approaches in biodiversity managementS. STOLL-KLEEMANN 440

Third party facilitation in nature conservation projectsA. KNIERIM 441

Participatory multicriteria decision tools - novel instrument for biodiversity conflictsolution and prevention. The case of Slovensky Raj National ParkT. KLUVANKOVA-ORAVSKA 442

Reconciliatiori^of biodiversity conservation and human use of biologial resources: Thesocio-economic approach of the EU-project FRAPO. ZWIRNER, I. RING, F. RAUSCHMAYER, H. WITTMER 443

Valuing wilderness in Iceland - new approaches in contingent valuationN. LlENHOOP 444

Symposium 23: Restoration of biodiversity- realistic target or false hope?

Restoration: Management for biodiversity?H. KOEHLER, J. MULLER 446

Restoration of biodiversity in wet grasslands - realistic target or false hope?G. ROSENTHAL 447

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Restoration of species-rich calcareous grasslands on former arable fields — possibilitiesand limiting factorsK. KIEHL, A. THORMANN, J. PFADENHAUER 448

Increase of biodiversity by restoration of a riverine landscapeA. VONHEBBERG 449

Structure and dynamics of ground-living spider communities (Araneae) on fallow landnear Halle/S. (Saxony-Anhalt)V. KUSCHKA, W. WlTSACK 450

The importance of opencast post-mining landscapes for species richness ofAuchenorrhyncha (Hemiptera)T. FUNKE, W. WlTSACK 451

Disentangling the role of soiland climatic conditions in local adaptation of plantsM. MACEL, T. STEINGER, H. MULLER-SCHARER 452

OFFENLAND - Effective and reasonable open landscape managementJ. MRZLJAK, A. PROCHNOW, G. WIEGLEB 453

OFFENLAND - Open landscape management using remote sensing dataU. NOCKER, M. PlLARSKI, B. BURKART, O. TSCHOPPE, P. VAN DORSTEN 453

OFFENLAND - Open landscape management - scenariosK. ANDERS, I. BRUNK, J. MRZLJAK, R. SCHLAUDERER , G. WIEGLEB.. . 453

Analysis of landscape structure in former military areas using remote sensing and GISM. PILARSKI, J. MRZLJAK, U. NOCKER, G. WIEGLEB 454

Symposium 24: Sustainable land-use and nature conservation

Impact of de-embankment on vegetation, biodiversity and agricultural usability ofcoastal grasslands at the Baltic SeaB.ZANDER 456

Local and regional factors influence colony growth of bumble bees in agriculturallandscapesC. WESTPHAL, I. STEFFAN-DEWENTER, T. TSCHARNTKE 457

Adaptation of land use management to site specific requirements within the ResearchNetwork on Agro-ecosystems Munich (FAM)A. MEYER-AURICH, F. LOCHER, K. HEIL, H. HEUWINKEL, G. HUBER, J.SCHACHTL, U. WELLER 458

Investigating biodiversity on the FAM-research farm - targets and results after 13 yearsof studyE. OSINSKI, M. BELDE, M. SCHLOTER, H. PLACHTER 459

The Filsalb Project: Measures toward integration of nature conservation, tourism/recreation and agricultureB. BEINLICH, M. DlETERICH 460

The European Section of the Society for Conservation Biology (SCBES)M. DlETERICH, A. BALDI 461

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Indicators for sustainable land use versus degradation in the semi-arid open woodlandsof the western High Atlas Mountains (Morocco)H. CULMSEE 462

Water-use and water-use effieciency of four perennial plant species in a Central-Asiandesert ,F.M. THOMAS, A. FOETZKI, H. BRUELHEIDE, D. GRIES, X. Li, F. ZENG, X.

ZHANG, M. RUNGE 463

Land-use conflicts in Manu National Park in the south-eastern rainforest of PeruJ. OHL,M.NIEKISCH,A. WEZEL 464

Stability and variation of crop diversity in homegardens of Central Sulawesi, IndonesiaK. KEHLENBECK, B.L. MAASS 465

Land-use change in the eastern Ore-Mountains since 1990S. BlANCHIN, H. HEILMEIER '. 466

Biodiversity of submarine landscapes being affected by urban structuresH.-U.DAHMS 467

Using grid data to predict habitat preferences. Virtual species in neutral landscapesC. DORMANN, A. LAUSCH 468

The influence of pedodiversity on water flow and water content in an agroecosystem -simulation resultsH. P. HARTMANN, E. PRIESACK 469

Exploring the spatial variability of soil texture and soil water content withelectromagnetic induction measurements and digital elevation modelsK. HEIL, TJ. SCHMIDHALTER 470

Changing tropical diversity of marine systems in Bocas del Torro, PanamaG.HOBART ; 471

An activity-oriented indicator approach for the promotion of biodiversity withconsideration of natural area differencesJ.HOFFMANN,J.M. GREEF,J . KIESEL, G. BERGER 472

Introduction to a research concept: Ecology and public healthA.K.F, MALSCH, C. HORNBERG 473

IUMBO - Application of multifunctional model to increase biodiversity. The projectIUMBO- "Integrative Realization of Method of Multicriteria Landscape Assessmentand Optimization at Querfiirt region"B.C. MEYER,R. GRABBAUM,H. MUHLE. . . . . 473

Modelling long-term grazing impacts on vegetation dynamics in Patagonian Festuca-grasslandsS. PtiTZ, J.M. PARUELO, G.E. WEBER, T. WIEGAND, F. JELTSCH 474

Land-use and sustainability: FAM Research Network on AgroecosystemsP. SCHRODER, J.C. MUNCH, B. HUBER 475

Regional variability of evapotranspiration in the catchment area SchnatterbachM. WlNTERHALTER 476

Species richness of afforestations with different former use and habitat continuityM.WULF... 477

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Vegetation dynamics in a de-embanked coastal overflow bog at the Baltic coast underextensive useB. ZANDER, D.REPASI 478

Effects of agri-environment programme for grassland conservationC. FRANKE, G. RIEHL 479

Symposium 26: Theory approaches in ecology and economics: Intersections,differences and integrative perspectives

From district to pixel - bridging the gap between the economic and ecological conceptof space

S.HERRMANN 482

Ecological-economic modelling as a tool for the integration of ecology and economicsM. DRECHSLER, F. WATZOLD 483

Compatible and incompatible aspects of physical, ecological and economical modelsM. HAUHS,H. LANGE,G. MULLER-CHRIST... . 484

Integrated valuation of a cultural landscape: An ecological approachD.KRAFT, J .MEYERDIRKS,M.SCHIRMER,S.WITTIG 485

The economic contribution to an integrated valuation of a cultural landscapeC . O T T E 486

Diversity measures in ecology and economics- A.HOFFMANN,S.HOFFMANN,J.WEIMANN.. 487

Relative and absolute scarcity of biodiversity. Assessing the roles of ecology andeconomics for nature conservationS. BAUMGARTNER, C. BECKER, M. FABER, R. MANSTETTEN ; 488

SUBICON - Biodiversity as a result of ecological processes, economic needs and socialrequestsJ. MRZLJAK 489

Biodiversity - a chamaeleon changing between concept and parameterP.MAYER7.. 489

Measuring the diversity of what? And for what purpose? A comparison of ecologicaland economic biodiversity indicesS. BAUMGARTNER 490

Symposium 28: GREENVEINS -Vulnerability of biodiversity in the agro-ecosystems as influenced by green veining and land-use intensity

Assessing the structure of agricultural landscapes across temperate Europe usinglandscape metricsD. BAILEY, I. AUGENSTEIN, J. BAUDRY, F. BUREL, R. DE FILIPPI, F. HERZOG, A.LAUSCH, N. SCHERMANN, E. SZERENCSITS 492

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Impact of landscape structure and land-use intensity on biodiversity of agriculturallandscapes - a pan-European survey !

R. BlLLETER, J. LlIRA 493Biodiversity in the agricultural landscape: An introduction to determinants, the need for

assessment instruments and the GREEN VEINS projectR. BUGTER ~! 494

Assessing the intensity of agricultural management accross temperate EuropeF. HERZOG, R. DE FILIPPI, B. STEINER, D. BAILEY, Y. REISNER 495

Spatial and functional structure of top predator meta-communities (Carabidae) infragmented landscapesO. SCHWEIGER, I. AUGENSTEIN, D. BAILEY, M. FRENZEL, J. JAVOISH, R.

KARULAAS, J. LIIRA, M. SPEELMANS 496

Hemeroby and patch shape complexity in 25 European landscapesE. SZERENCSITS, R. DE FILIPPI, D. BAILEY, F. HERZOG 497

Significance of greenveining networks in agricultural landscapes for biodiversity in theNetherlands

W.K.R.E. VAN WlNGERDEN, C. J. GRASHOF, J.T.C.M. SPRANGERS 498Weed windows - a means of monitoring the potential weed flora of arable fields

S. WEHKE, J.-W.ZOLDAN, T. FRANKENBERG 499

Dispersal patterns of the bush cricket Pholidoptera griseoaptera in a fragmentedagricultural landscapeT. DlEKOTTER, C. ROTHENBUHLER, D. CSENCSICS, M. SPEELMANS 500

Do the amount of greenveining and land-use intensity influence genetic diversity and .population structure of Geum urbanum ?

T. SCHMIDT, J. LIIRA, R. BILLETER, P. ARENS, R. SMULDERS, W. DURKA.. 501

Open topics

From vineyards to dry meadows: Landscape restitution and indication with ground

beetles —"S.AGNEZY. 504

Safe sites and adequate stand structure are critical for tree establishment in woodedpastures dominated by Picea abiesD. BEGUIN, C. SMIT, A. BUTTLER 505

Life history strategies and prey specialization - a study on the predatory hoverfly generaMelanostoma and Platycheirus (Diptera, Syrphidae)F.DZIOCK 506

The subalpine vegetation of the Olympos Beydaglari National Park (Antalya, Turkey)with remarks on its phytodiversityO. EREN, G. PAROLLY 507

Ethological implications of different maintenance regimes for Heidschnucken-sheepS. FELTE, H.-U. DAHMS 508

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The ecological reductionisms of Fritz Peus (1904-1975), and its relevance for currentecology and conservationJ. GNADINGER 509

Moral principles as a foundation of a sustainable protection of biodiversityS.ITEN 510

Comparing map comparison agorithms for spatial modeling and pattern analysisM. KUHNERT, A. VOINOV, R. SEPPELT 511

Testate amoebae in a patchy world - do Ellenberg indicators matter in grasslands underenvironmental stress?C.MULDER,A.M.BREURE,J.BLOEM 512

Seed and microsite limitation of two endangered hemiparasitic fen grasslandScrophulariaceaeL. RASRAN, K. JENSEN 513

Population structure of Apodemus sylvaticus in the post-mining landscape of LowerLusatiaD. RATHKE, U. BRORING, G. WIEGLEB 514

Changes in patterns of plant species richness and unpalatable plants from intensivemountain pastures to abandoned grasslandsT. SPIEGELBERGER, U. SCHAFFNER, H. MULLER-SCHARER 515

Effects of pre-dispersal seed predation on reproduction and population growth of theclonal Geum reptansT. WEPPLER, J. STOCKLIN 516

Plant uptake of different amino acids in a temperate grasslandA. WEIGELT, R. D. BARDGETT 517

Forest history as a base for dynamic naturalnessC. WESTPHAL, G.V. OHEIMB, W. HARDTLE 518

Cultural traditions and biodiversity of grasslands in the Swiss Alps: An ongoing projectA. WEYAND, K. MAURER, J. STOCKLIN, M. FISCHER 519

Effects of productivity and environmental factors on plant species richness at differentspatial scales ._. -C. WINTER, M. DIEKMANN 520

A structure for the varying kinds of prevention in biological invasionsE. WOLFRAM 521

Author index 522

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