Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Decomposition of leaf litter mixtures across biomes : The role of litter identity, diversity and soil fauna
    Zhou, Shixing ; Butenschoen, Olaf ; Barantal, Sandra ; Handa, Ira Tanya ; Makkonen, Marika ; Vos, Veronique ; Aerts, Rien ; Berg, Matty P. ; McKie, Brendan ; Ruijven, Jasper Van; Hättenschwiler, Stephan ; Scheu, Stefan - \ 2020
    Journal of Ecology 108 (2020)6. - ISSN 0022-0477 - p. 2283 - 2297.
    litter diversity - litter identity - litter traits - mass loss - microarthropods - plant–soil (below-ground) interactions - soil fauna

    At broad spatial scales, the factors regulating litter decomposition remain ambiguous, with the understanding of these factors largely based on studies investigating site-specific single litter species, whereas studies using multi litter species mixtures across sites are rare. We exposed in microcosms containing single species and all possible mixtures of four leaf litter species differing widely in initial chemical and physical characteristics from a temperate forest to the climatic conditions of four different forests across the Northern Hemisphere for 1 year. Calcium, magnesium and condensed tannins predicted litter mass loss of single litter species and mixtures across forest types and biomes, regardless of species richness and microarthropod presence. However, relative mixture effects differed among forest types and varied with the access to the litter by microarthropods. Access to the microcosms by microarthropods modified the decomposition of individual litter species within mixtures, which differed among forest types independent of litter species richness and composition of litter mixtures. However, soil microarthropods generally only little affected litter decomposition. Synthesis. We conclude that litter identity is the dominant driver of decomposition across different forest types and the non-additive litter mixture effects vary among biomes despite identical leaf litter chemistry. These results suggest that across large spatial scales the environmental context of decomposing litter mixtures, including microarthropod communities, determine the decomposition of litter mixtures besides strong litter trait-based effects.

    Earthworms Coordinate Soil Biota to Improve Multiple Ecosystem Functions
    Liu, Ting ; Chen, Xiaoyun ; Gong, Xin ; Lubbers, Ingrid M. ; Jiang, Yangyang ; Feng, Wen ; Li, Xianping ; Whalen, Joann K. ; Bonkowski, Michael ; Griffiths, Bryan S. ; Hu, Feng ; Liu, Manqiang - \ 2019
    Current Biology 29 (2019)20. - ISSN 0960-9822 - p. 3420 - 3429.
    bacterial-dominated channel - earthworm - ecosystem engineer - ecosystem service - soil fauna - soil microbe - sustainable agriculture

    Liu et al. study a 13-year-old field experiment to show that earthworms are beneficial to agroecosystems from a multifunctional perspective. This work incorporates the concerns of negative effects of earthworms in recently published syntheses and highlights the potential pathways in which earthworms contribute to sustainable agriculture.

    Impact of trophic ecologies on the whereabouts of nematodes in soil
    Quist, Casper W. - \ 2017
    Wageningen University. Promotor(en): J. Bakker, co-promotor(en): J. Helder. - Wageningen : Wageningen University - ISBN 9789463430814 - 129
    nematoda - spatial distribution - soil fauna - biota - trophic levels - food webs - soil ecology - soil biology - farming systems - soil types (ecological) - geostatistics - nematoda - ruimtelijke verdeling - bodemfauna - biota - trofische graden - voedselwebben - bodemecologie - bodembiologie - bedrijfssystemen - bodemtypen (ecologisch) - geostatistiek

    Soil life is highly diverse, and ecologically intricate due to myriad of biotic interactions that take place. Terrestrial nematodes have a high potential to serve as an effective and policy-relevant indicator group for ecosystem functioning and soil biodiversity. The work described in this thesis contributed to the robust mapping of nematode communities at scales relevant in both agronomic and environmental contexts. The overarching aim of the work described in this thesis was to contribute to a sound exploration of the potential of nematode communities as an indicator group for the biological condition of soils. Therefore, the distributions of a wide range of nematode taxa were studied, within and between trophic groups and in soils conditioned by various plant species and/or farming systems.

    In Chapter 2 nematode taxon-specific qPCR assays were used to pinpoint responses of nematode communities to invasive plant species Solidago gigantea in two invaded ecosystems: semi-natural grasslands and riparian floodplains. Nematode communities and fungal biomass were examined in adjacent invaded and uninvaded patches. The dominant presence of the invasive plant causes a decrease of plant species-richness and diversity, and an about twofold increase of fungal biomass. Only the density of a single group of fungivorous nematodes (Aphelenchoididea) increased, whereas the densities of two other, phylogenetically distinct lineages of fungivorous nematodes, Aphelenchidae and Diphtherophoridae, were unaffected by the local increase in fungal biomass. Apparently S. gigantea induces a local asymmetric boost of the fungal community, and only Aphelenchoididae were able to benefit from this change induced by the invasive plant.

    In Chapter 3 the outcome is shown of a test whether farming system effects are mirrored in compositional changes in nematode communities. The long-term impact of three farming systems (conventional, integrated and organic) on nematode communities was investigated at the Vredepeel, an experimental farm in the southeastern part of The Netherlands. The results showed that organic farming causes specific shifts in nematode community composition, exceeding the usually large crop-related assemblage shifts. Strongest effects were observed for the (putative) bacterivore Prismatolaimus, which was relatively common in organic fields and nearly absent in conventional and integrated farming. A reverse effect was observed for Pristionchus; this necromenic bacterivore and facultative predator made up about 7 – 21% of the total nematode community in integrated and conventional farming, whereas it was nearly absent from organic fields. The observed farming system effects suggest that specific nematode taxa might be indicative for the impact of farming practices on soil biota. Knowledge of spatial distribution patterns of soil organisms with distinct trophic preferences will contribute to our understanding of factors that maintain and regulate soil biodiversity, and is essential information to design soil sampling strategies with predictable accuracies.

    Chapter 4 deals with microscale patchiness of 45 nematode taxa (at family, genus or species-level) in arable fields and semi-natural grasslands, on marine clay, river clay or sandy soils. Contrary to our expectations, an increase of the number of cores per composite sample above 3, did not result in more accurate detection for any of the taxa under investigation (range of number of cores per composite sample: 3, 6, 12 or 24). Neither system nor soil type did influence microscale distribution. The insights in the spatial distribution of nematodes at microscale presented here, sheds light on the impact of trophic preferences on the spatial distribution of individual nematode taxa, and will allow for the design of statistically sound soil sampling strategies.

    Chapter 5 shows belowground distribution patterns of 48 nematode taxa in 12 visually homogeneous fields (each 100 x 100 m) on three soil types (marine clay, river clay and sand) and two land-use types (arable and natural grasslands) across the Netherlands. Over 35,000 nematode-taxon specific qPCR assays allowed us to quantitative analyse nematode taxa at family, genus or species level in over 1,200 soil samples. A sampling scheme was optimized for Bayesian geostatistical analysis (Integrated nested Laplace approximations; INLA). Multivariate analysis show soil type and land-use related differences in the nematode community composition, which underline the effects of environmental filtering and niche partitioning of nematodes. All individual nematode taxa together show a wide range of degrees of spatial variabilities were found (expressed by the range-parameter and the spatial variance parameter (s2spatial). No general effects were detected of soil characteristics or nematode traits (cp-value, trophic group, weight) on the spatial distribution parameters. The relatively high percentages of unexplained spatial variability – 92.5% of the variation for the range-parameter and 74% for spatial variance (s2spatial) – point at a major role of stochasticity for variability of nematode densities within fields. This study adds empirical evidence that distribution patterns of terrestrial nematodes, in areas without noticeable gradients, are driven by neutral / stochastic processes, within the boundaries set by the environment.

    In the final Chapter 6, I discuss the opportunities and challenges of the use of molecular tools in soil ecological research, the impact of trophic preferences on the whereabouts of nematodes, the use of nematode communities as indicator for soil condition and how this might be developed and applied to facilitate more sustainable ecosystem management.

    De relatie tussen bodemdieren en hydro- en morfodynamiek in het sublitoraal en litoraal van de Westerschelde
    Ysebaert, T. ; Craeymeersch, J.A.M. ; Wal, Daphne van der - \ 2016
    IMARES (Rapport / IMARES C066/16) - 84
    bodemfauna - bodembiologie - hydrodynamica - westerschelde - soil fauna - soil biology - hydrodynamics - western scheldt
    Deze studie, in opdracht van Rijkswaterstaat, heeft als doel de relatie tussen bodemdiergemeenschappen en abiotische omgevingsvariabelen nader te onderzoeken en daarmee een betere onderbouwing te verkrijgen van de grens tussen hoog- en laagdynamische gebieden in de sublitorale en litorale gebieden van de Westerschelde.
    The soil life cycle : food webs and ecosystem services during soil transformations
    Leeuwen, J.P. van - \ 2016
    Wageningen University. Promotor(en): Peter de Ruiter; Jaap Bloem; Lia Hemerik. - Wageningen : Wageningen University - ISBN 9789462576261 - 166
    soil - food webs - ecosystem services - life cycle - soil biology - soil flora - soil fauna - bodem - voedselwebben - ecosysteemdiensten - levenscyclus - bodembiologie - bodemflora - bodemfauna

    Soil is one of the most important natural resource for life on Earth and provides important ecosystem services, such as food production, carbon sequestration, water regulation and contaminant attenuation. Soil quality, defined as the soil’s ability to provide these services, is drastically reduced in many locations and regions worldwide due to human activities. This loss in soil quality ultimately leads to soil degradation, erosion and desertification, imposing a severe and increasing risk for the growing human population. It is therefore essential that we are aware of the importance of protecting soil, and at the same time understand processes that build up and regenerate soil. The key objective of the present study was to obtain a better understanding of soil food web structure and functioning, and how these develop in stages along the soil life cycle. Using field surveys, I investigated the soil food web structure and functioning in different sites along the soil life cycle, including soils developing in glacial chronosequences, productive soils under different land use and management, and soils under risk of degradation.

    The soil food web was expected to build up in biomass and structure, be highest in the intermediate soils, and decrease in soils at or nearby degradation. This was indeed the case when comparing developing soils in the chronosequences, and comparing productive soils with degrading soils. But also land use type turned out to be very important for the structure of the soil food web. Biological measures such as biomass, activity and diversity of soil organisms, especially that of soil microarthropods, were found to be indicative for soil quality in all sites.

    I also investigated the possible role of soil organisms in the soil ecosystem functioning, in terms of soil structure formation and C and N mineralisation. Although soil organisms are known to have an important role on soil structure formation, no clear indications of such a role were found for that function in the studied sites. However, soil microbial biomass and activity, and the biomass of other trophic groups, did play a crucial role in soil ecosystem process rates, especially the C and N mineralisation rates.

    In conclusion, I have found that soil food webs assemble in a directive manner: organism biomass and activity increase with soil productivity. In productive soils, land use type and land management are the main drivers affecting soil food web structure and functioning, although this effect is limited to the topsoil. Under harsh conditions, soil organisms reach a relatively low biomass and are sensitive to aspects of intensive agricultural land use.

    Reguleringsmechanismen in het kustecosysteem van de Voordelta
    Kooten, T. van; Jansen, H.M. - \ 2015
    IJmuiden : IMARES (Rapport / IMARES C095/15) - 66
    aquatische ecosystemen - benthos - voordelta - kustwateren - zuidwest-nederland - aquatische gemeenschappen - visserij - bodemfauna - rivieren - aquatic ecosystems - benthos - voordelta - coastal water - south-west netherlands - aquatic communities - fisheries - soil fauna - rivers
    Wordt het benthos in het Voordelta kustecosysteem gereguleerd door bottom-up of top-down gerelateerde processen, en hoe zal dit systeem reageren op de maatregelen om de bodemberoerende visserij uit te sluiten in het Bodembeschermingsgebied.
    Ontdek de bodemdieren
    Korthals, G.W. ; Berg, M.P. ; Goede, R.G.M. de; Baanders, T. ; Beijaert, M. ; Rienks, F. - \ 2015
    bodemarthropoden - bodeminvertebraten - bodemfauna - bodem - categorische kenmerken - soorten - soil arthropods - soil invertebrates - soil fauna - soil - categorical traits - species
    Zoekkaart voor het ontdekken van bodemdieren in eigen omgeving.
    Ontwikkeling bodemfauna op en rond de Zandmotor
    Wijsman, J.W.M. - \ 2015
    zandsuppletie - monitoring - duingebieden - kustbeheer - bodemfauna - milieueffectrapportage - hoogwaterbeheersing - sand suppletion - monitoring - duneland - coastal management - soil fauna - environmental impact reporting - flood control
    In 2011 is er als experiment een grootschalige (19 miljoen m3) strandsuppletie aangelegd tussen Ter Heijde en Kijkduin, de “Zandmotor”. De golven en stroming moeten het zand van de Zandmotor geleidelijk (periode 20 jaar) naar de kust transporteren. Door in één keer een grote hoeveelheid zand te storten wordt voorkomen dat de zeebodem herhaaldelijk (iedere 3-5 jaar) dient te worden verstoord door reguliere vooroever- en strandsuppleties. Een uitgebreid monitoring- en evaluatieprogramma (2011-2016) is opgezet om te onderzoeken of deze innovatieve manier van kustbescherming ook daadwerkelijk werkt.
    PMR Monitoring natuurcompensatie Voordelta - bodemdieren 2004 - 2013
    Craeymeersch, J.A.M. ; Escaravage, V. ; Adema, J. ; Asch, M. van; Tulp, I.Y.M. ; Prins, T. - \ 2015
    Yerseke : IMARES (Rapport / IMARES C091/15) - 171
    bodemfauna - monitoring - natuurcompensatie - zuid-holland - soil fauna - monitoring - nature compensation - zuid-holland
    Met de aanleg van Maasvlakte 2 is de haven van Rotterdam uitgebreid. Maasvlakte 2 ligt in de Voordelta, een Natura 2000-gebied. In de Passende Beoordeling die in 2007 is uitgevoerd, is een aantal effecten van de aanwezigheid van Maasvlakte als significant negatief beoordeeld. Ter compensatie van deze effecten is binnen de Voordelta een aantal maatregelen getroffen, onder meer een bodembeschermingsgebied. In het bodembeschermingsgebied worden beperkingen opgelegd aan vormen van visserij die de zeebodem beroeren. De boomkorvisserij met wekkerkettingen door schepen met een motorvermogen groter dan 260 pk (191 kW) (Eurokotters) is niet toegestaan. Om het effect van de instelling van het bodembeschermingsgebied te kunnen evalueren, zijn in de periode 2004-2007 metingen verricht om de nulsituatie vast te leggen, en is vanaf 2009 het monitoringsprogramma voor de natuurcompensatie gestart.
    Inventarisatie bodemfauna op projectlocatie Vogelsand
    Troost, K. ; Ende, D. van den - \ 2015
    Yerseke : IMARES (Rapport / IMARES Wageningen UR C117/15) - 24
    natuurbescherming - benthos - bodemfauna - natuurtechniek - ontwerp - eilanden - waddenzee - inventarisaties - natura 2000 - nature conservation - benthos - soil fauna - ecological engineering - design - islands - wadden sea - inventories - natura 2000
    Vogelbescherming Nederland heeft het voornemen om, samen met andere partijen, een vogeleiland aan te laten leggen nabij Den Oever in de Waddenzee. Omdat de Waddenzee een beschermd natuurgebied is dat deel uitmaakt van het Europese Natura 2000 netwerk, moet hiervoor een NB-wet vergunning aangevraagd worden. Voordat Vogelbescherming Nederland deze vergunning aan kan vragen moet een Passende Beoordeling worden opgesteld, waarin wordt ingeschat welke effecten er mogelijk zijn op de instandhoudingsdoelstellingen voor de verschillende habitattypen en soorten welke bescherming genieten binnen Natura 2000 kader. Zo zal de aanleg van een eiland met een oppervlak van maximaal 100 hectare direct leiden tot een afname in het areaal van habitattype H1110: permanent overstroomde zandplaten. Om in te kunnen schatten of de aanleg van het vogeleiland ook een effect zal hebben op de kwaliteit van het resterende habitattype H1110 heeft Vogelbescherming Nederland meer inzicht nodig in de aanwezige bodemdier gemeenschap, het macrobenthos. Vogelbescherming Nederland heeft daarom aan IMARES gevraagd om in het plangebied voor het vogeleiland (‘Vogelsand’) de aanwezige bodemfauna te inventariseren, en om te onderzoeken of de aanwezige bodemfauna rijker, minder rijk of even rijk is als het overige gebied binnen H1110.
    Ecological functions of earthworms in soil
    Andriuzzi, W.S. - \ 2015
    Wageningen University. Promotor(en): Lijbert Brussaard; T. Bolger, co-promotor(en): O. Schmidt. - Wageningen : Wageningen University - ISBN 9789462574175 - 154
    aardwormen - oligochaeta - bodemfauna - bodembiologie - bodemecologie - ecosystemen - bodemstructuur - earthworms - oligochaeta - soil fauna - soil biology - soil ecology - ecosystems - soil structure

    Ecological functions of earthworms in soil

    Walter S. Andriuzzi


    Earthworms are known to play an important role in soil structure and fertility, but there are still big knowledge gaps on the functional ecology of distinct earthworm species, on their own and in interaction with other species. This thesis investigated how earthworms affect soil biochemical and biophysical functioning, and other organisms such as plants and smaller soil organisms.

    Two field experiments with stable isotope tracers were performed to investigate how anecic earthworms (which feed on organic matter at the soil surface and dig deep burrows) transfer carbon and nitrogen from fresh plant litter into soil, and how this in turn affects soil organic matter composition, protists and nematodes. Another field experiment tested whether the anecic earthworm Lumbricus terrestris can counteract negative effects of intense rainfall on soil and plants (ryegrass). A greenhouse experiment was carried out to study how co-occurring earthworm species – two anecic and one endogeic (smaller, soil-feeding) – affect transfer of nitrogen from dung to soil and plants, nitrogen retention in soil, and plant growth. For the latter experiment, a method to produce herbivore (rabbit) dung triple-labelled with carbon, nitrogen and sulphur stable isotopes was developed.

    Overall, the findings highlight important functions of earthworms in carbon and nitrogen cycling, soil biophysical structure maintenance due to burrow formation, and resulting biotic interactions. A novel finding was that the sphere of influence of anecic earthworms in soil (the ‘drilosphere’) is a much larger biochemical and biological hotspot than hitherto assumed. Rapid movement of carbon and nitrogen from surface to soil thanks to anecic earthworm activity resulted in spatial heterogeneity in soil carbon content, organic matter composition, and density of smaller eukaryotes (e.g. bacterial-feeding protists). Evidence was found that distinct earthworm anecic species may have dissimilar effects on soil biochemistry and plant growth, and that both anecic and endogeic earthworms may feed on surface organic matter (dung). This shows that the validity of earthworm ecological groups depends on the function under study, and suggests that, for some research questions, species identity should not be neglected; other approaches to quantify ecological differences between species (e.g. functional traits) are appraised. Finally, L. terrestris was found to ameliorate the disturbance of intense rain on plants, giving evidence to the idea that some components of soil biodiversity may contribute to ecosystem stability in the face of disturbance.

    Predictability of plant-soil feedback
    Cortois, R. - \ 2015
    Wageningen University. Promotor(en): Wim van der Putten, co-promotor(en): Gerlinde de Deyn. - Wageningen : Wageningen University - ISBN 9789462573406 - 152
    bodem-plant relaties - bodem - planten - biodiversiteit - graslanden - bodembiologie - bodemfauna - soil plant relationships - soil - plants - biodiversity - grasslands - soil biology - soil fauna


    In my thesis project I studied the role of soil biota as possible drivers of linkages between plant community diversity and plant productivity. My study was carried out in the framework of a large grassland biodiversity experiment in Jena, the so-called Jena Experiment.
    In chapter 1 I explain how soil biota may exert control over plant community productivity by recycling organic material and by intimately interacting with plant roots, either acting as antagonists to plants or as plant growth-promoting symbionts. Reciprocal interactions between plant and soil communities are an important component of so-called ‘plant-soil feedbacks’ (PSFs). In the PSF loop, plant community composition drives changes in belowground communities and abiotic conditions, which can subsequently alter plant community composition and productivity. Such PSF interactions have been proposed to play a major role in plant community composition and functioning.
    In the second chapter I review studies that use an experimental approach of inoculating live soils into sterilized background soils to study the effects of root symbionts on plant growth. I demonstrate that we make many assumptions when translating results of controlled studies to natural systems. I propose that we should continuously and carefully consider these assumptions and aim for rigid hypothesis testing by cross-talking between different levels of ecological realism.
    In chapter 3 I test how plant traits relate to PSF using a 49 grassland plant species of the Jena Experiment. First, I grew individuals of all species for two months in sterilized soil inoculated with field soil. In the subsequent feedback phase, I grew all plant species for 6 weeks in sterilized soil inoculated with (I) species-specific inoculum (conspecific conditioned soil), (II) sterilized species-specific inoculum, or (III) a mixture of all 49 species-specific inoculums (mixed conditioned soil). Subsequently I compared biomass production in conspecific conditioned soil to biomass production in sterilized soil (PSFsterilized) and in mixed conditioned soil (PSFmixed). Species with increasing specific root length (SRL) were increasingly susceptible to antagonistic interactions in conspecific conditioned soil (i.e. they had strong negative PSFsterilized), while thick-rooted plants had both positive PSFsterilized and high colonization rates of arbuscular mycorrhizal fungi (AMF). Finally, I showed that species ranking of PSFmixed was similar to species ranking of PSFsterilized, indicating that plants with increasingly negative net interactions in conspecific conditioned soil increasingly

    benefit from growing in mixed conditioned soil. With these findings, I made a first important

    step in placing PSFs in plant ecological strategy frameworks: high SRL is typical for plants

    that adopt a ‘fast’ growth strategy, characterized by fast resource acquisition but poor defense

    against antagonists and little reliance on AMF.
    In chapter 4, I test the relation between phylogenetic relatedness and the feedback effect of one (soil conditioning) plant species to another (responding) plant species. This is named indirect PSF. I grew eleven focal plant species, chosen to represent plants that had negative, neutral and positive PSFsterilized, in soils that were conditioned by conspecifics and soils conditioned by three to four other species with a varying degree of phylogenetic relatedness to the focal plant species. I found that plant species with negative PSF had no different or slightly better growth when growing in soil conditioned by plant species with larger phylogenetic distance to the focal plant. In contrast, plant species with neutral PSF grew less well, and species with positive PSF even worse, in soil conditioned by plant species with increasing phylogenetic distance to the focal plant. I conclude that the effect of phylogenetic relatedness on PSF interactions between plant species may depend on the tendency of the focal plant species to develop detrimental or beneficial interactions with soil microbes.
    In chapter 5, I use the PSFmixed values of chapter 3 in a correlational analysis to test how short-term PSFs relate to longer-term species’ performances in the field, using established monocultures and species-rich (60 species) plant communities of the Jena Experiment. Based on some recently published studies I expected that plants with more negative PSFmixed would benefit most from growing in mixtures; these plant species were expected to overyield most in mixed plant communities. However, opposite to the expectation, plant species with the most negative PSF produced least biomass in the 60-species plant communities, whereas plant performance in monoculture was not related to its short-term PSF. I conclude that species-specific overyielding was positively related to species-specific PSF, and that community overyielding was mostly driven by plant species with a neutral to positive PSF. Finally, in chapter 6 I examine the role of quality and quantity of plant biomass in driving nematode feeding group abundance and diversity. I found strong positive effects of both plant species- and plant functional group-richness on abundances of plant feeding, bacterial feeding and fungal feeding nematodes, as well as omnivores, but not for predators. Structural equation modeling (SEM) analysis showed that the positive effect of plant diversity on the abundance of microbial feeding nematodes (fungal plus bacterial feeders) could not be explained by increased microbial biomass. Similarly, the abundance of plant feeding nematodes was not driven by the higher plant biomass in species rich plant communities. Instead, increased plant biomass explained the positive relation between plant species richness and the abundance of microbial feeding nematodes, while for plant feeding nematodes, increased C to N ratio of aboveground plant biomass appeared to explain the positive relation between the abundance of plant feeding nematodes and plant species and functional group richness. Importantly, the density of plant feeding nematodes per unit root biomass decreased with increasing plant diversity, indicating a root feeder dilution effect. I conclude that plant diversity does not explain nematode community composition primarily by simple bottom-up relations, but that other aspects, such as quality of resource and microhabitats quality, may play a role as well.

    Effecten van garnalenvisserij in Natura 2000 gebieden
    Glorius, S.T. ; Craeymeersch, J.A.M. ; Hammen, T. van der; Rippen, A.D. ; Cuperus, J. ; Weide, B.E. van der; Steenbergen, J. ; Tulp, I.Y.M. - \ 2015
    Den Helder : IMARES (Rapport / IMARES Wageningen UR C013/15) - 162
    garnalen - visserij - kustgebieden - waddenzee - natura 2000 - bodemfauna - nadelige gevolgen - inventarisaties - shrimps - fisheries - coastal areas - wadden sea - natura 2000 - soil fauna - adverse effects - inventories
    De garnalenvisserij is economisch en in aantallen schepen één van de belangrijkste visserijen in Nederland en opereert vooral binnen Natura 2000 gebieden. Voor zowel de Noordzeekustzone als de Waddenzee is er binnen de Natura 2000 wetgeving een verbeterdoelstelling geformuleerd voor Habitattype 1110 (permanent overstroomde zandbanken). Het effect van het garnalentuig op het ecosysteem is echter niet goed bekend. Om in dit kennishiaat te voorzien, is er in de periode 2012-2014 onderzoek uitgevoerd naar een aantal aspecten van de mogelijke effecten van de garnalenvisserij. Enerzijds is de bijvangst in kaart gebracht, anderzijds is experimenteel onderzoek verricht naar de korte termijneffecten van het garnalentuig op de bodemfauna.
    Garnalenvisserij experiment Voordelta
    Schellekens, T. ; Escaravage, V. ; Goudswaard, P.C. ; Asch, M. van; Craeymeersch, J.A.M. - \ 2014
    IJmuiden : IMARES (Rapport / IMARES Wageningen UR C154/15) - 88
    bodemfauna - mariene ecologie - visserij - nadelige gevolgen - garnalen - natura 2000 - noordzee - voordelta - soil fauna - marine ecology - fisheries - adverse effects - shrimps - natura 2000 - north sea - voordelta
    Als onderdeel van het Monitoring Programma Natuurcompensatie Voordelta is in de periode 2010-2012 een experiment uitgevoerd waarbij specifiek de mogelijke effecten van de garnalenvisserij op het bodemleven worden onderzocht. Het gaat daarbij zowel om de in, als op de bodem levende ongewervelde dieren (schelpdieren, wormen, krabben en kreeftachtigen, stekelhuidigen)
    Natuurwaarden Borkumse Stenen: project aanvullende beschermde gebieden
    Bos, O.G. ; Glorius, S.T. ; Coolen, J.W.P. ; Cuperus, J. ; Weide, B.E. van der; Aguera Garcia, A. ; Leeuwen, P.W. van; Lengkeek, W. ; Bouma, S. ; Hoppe, M. van; Pelt-Heerschap, H.M.L. van - \ 2014
    IJmuiden : IMARES (Rapport / IMARES Wageningen UR C115.14) - 82
    noordzee - natura 2000 - bodemfauna - benthos - zand - natuurwaarde - north sea - natura 2000 - soil fauna - benthos - sand - natural value
    In dit rapport wordt de bodemfauna in het gebied ‘Borkumse Stenen’ beschreven. Het gebied ‘Borkumse Stenen’ ligt ten noorden van Schiermonnikoog en grenst aan de zuidzijde aan het Nederlandse Natura 2000-gebied Noordzeekustzone en aan de oostzijde aan het Duitse Natura 2000-gebied ‘Borkum Riffgrund’, dat o.a. vanwege de aanwezigheid van habitattype H1170 (‘riffen’) is aangewezen.
    Bodemkwaliteit Op Zand: T nul meting bodem, Vaststellen uitgangssituatie door waarnemingen aan fysische, biologische- en chemische bodemparameters
    Visser, J.H.M. ; Schoot, J.R. van der; Korthals, G.W. ; Haan, J.J. de - \ 2014
    Lelystad : PPO AGV (PPO pubnr: 614 614) - 54
    zandgronden - bodemfauna - bodemweerbaarheid - bodembeheer - teeltsystemen - proefprojecten - de peel - noord-brabant - sandy soils - soil fauna - soil suppressiveness - soil management - cropping systems - pilot projects - de peel - noord-brabant
    In 2011 is op PPO locatie Vredepeel het project Bodemkwaliteit op Zand (BKZ) gestart. Het project Bodemkwaliteit op Zandgrond richt zich op de ontwikkeling van maatregelen voor een duurzaam bodembeheer op zandgronden op gebied van organisch stofbeheer en grondbewerking.
    De ontwikkeling van niet beviste sublitorale mosselbanken 2009 - 2013
    Glorius, S.T. ; Rippen, A.D. ; Jong, M.L. de; Weide, B.E. van der; Cuperus, J. ; Bakker, A.G. ; Hoppe, M. van - \ 2014
    Den Helder : IMARES (Rapport / IMARES Wageningen UR C109/14) - 57
    mosselteelt - biodiversiteit - mariene gebieden - bodemfauna - natuurwaarde - monitoring - noordzee - mussel culture - biodiversity - marine areas - soil fauna - natural value - monitoring - north sea
    In de Nederlandse kustwateren vindt mosselbroedvisserij en mosselkweek plaats. Deze wateren herbergen echter belangrijke natuurwaarden en de meeste wateren zijn derhalve aangewezen als natuurgebied, wat Nederland verplicht om er voor te zorgen dat de natuurwaarden in deze gebieden in stand blijven. Verbetering van de kwaliteit van de natuurwaarden is vooral mogelijk ten aanzien van bodemfauna en de vorming van biogene structuren met mossels (en de daaraan geassocieerde biodiversiteit). Het is in de Waddenzee echter niet goed bekend hoe gesloten (i.e. onbeviste) sublitorale mosselbroedbanken zich ontwikkelen in de tijd en welke specifieke natuurwaarden ze herbergen. Om hier inzicht in te verkrijgen is een monitorprogramma opgesteld waarin gesloten sublitorale mosselbanken gevolgd werden. In dit eindrapport worden de resultaten van dit programma beschreven.
    Effects of beam and pulse trawling on the benthic ecosystem
    Teal, L.R. ; Depestele, J. ; O'Neill, B. ; Craeymeersch, J.A.M. ; Denderen, P.D. van; Parker, R. ; Perdon, K.J. ; Polet, H. ; Rasenberg, M.M.M. ; Vanelslander, B. ; Rijnsdorp, A.D. - \ 2014
    IJmuiden : IMARES (Report / IMARES Wageningen UR C098/14) - 53
    visserij - pulsvisserij - vismethoden - nadelige gevolgen - bodemfauna - noordzee - voordelta - fisheries - pulse trawling - fishing methods - adverse effects - soil fauna - north sea - voordelta
    In dit rapport worden de effecten van visserij met sleepnetten op de zeebodem en bodemdieren bestudeerd. Een BACI - ontwerp experiment werd gebruikt om de effecten van een traditionele boomkor en een pulskor te onderzoeken. In de afgelopen jaren is als gevolg van lagere brandstofkosten en goede tong vangsten het gebruik van de pulskor techniek onder Nederlandse vissers toegenomen.
    Monitoring VIBEG voor bodemdieren Vlakte van de Raan : T0 in 2013
    Troost, K. ; Goudswaard, P.C. ; Asch, M. van - \ 2014
    Yerseke : IMARES (Rapport / IMARES Wageningen UR C064/14) - 12
    visserij - bodemfauna - monitoring - mariene gebieden - natura 2000 - noordzee - fisheries - soil fauna - monitoring - marine areas - natura 2000 - north sea
    In het N2000 gebied Vlakte van de Raan is in 2013 een nulmeting uitgevoerd naar het voorkomen van bodemdieren, middels een bodemschaaf en zuigkor. In voorliggend datarapport wordt een overzicht gegeven van de aangetroffen soorten in de voorgestelde gesloten gebieden en daarbuiten.
    Koester de regenworm
    Eekeren, N.J.M. van; Deru, J.G.C. ; Poot, N. - \ 2014
    V-focus 11 (2014)2. - ISSN 1574-1575 - p. 40 - 41.
    melkveehouderij - aardwormen - grondbewerking - voedingsbehoeften - nadelige gevolgen - strooisel - bodemstructuur - bodemfauna - dairy farming - earthworms - tillage - feed requirements - adverse effects - litter (plant) - soil structure - soil fauna
    Regenwormen zijn belangrijk op een melkveebedrijf voor de afbraak van organische stof, het beschikbaar maken van nutriënten, behoud van bodemstructuur, waterinfiltratie, beworteling en uiteindelijk gewasopbrengst. Vooral pendelende wormen hebben unieke functies, maar zijn heel gevoelig voor een intensieve en/of kerende grondbewerking door hun levenswijze, in permanente gangen, en hun behoefte aan strooisel als voedsel. Als de melkveehouderij beter gebruikt wil maken van de pendelaars is de vraag wat het belangrijkste knelpunt is: grondbewerking of een gebrek aan voedsel en bescherming. Resultaten van een proef naar het effect op regenwormen wordt besproken.
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