Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    '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.

    We have a manual that explains all the features 

    Current refinement(s):

    Records 1 - 20 / 68

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    Slapeloze nachten - Ernstige besmetting van bloedluis bij kippen
    Jong, I.C. de - \ 2016
    Wageningen Livestock Research
    dermanyssus gallinae - pluimveehouderij - diergezondheid - bestrijdingsmethoden - parasieten - dermanyssus gallinae - poultry farming - animal health - control methods - parasites
    De vogelmijt (ook wel bloedluis genoemd) is een parasiet die bij grote aantallen grote effecten heeft op de pluimveehouderij. Bekijk in dit filmpje de effecten en de maatregelen.
    Tonderzwammen en insecten
    Moraal, L.G. - \ 2015
    Vakblad Natuur Bos Landschap 12 (2015)120. - ISSN 1572-7610 - p. 20 - 21.
    fomes fomentarius - insecten - bedreigde soorten - soorten - parasieten - coleoptera - gastheer parasiet relaties - fomes fomentarius - insects - endangered species - species - parasites - coleoptera - host parasite relationships
    Parasieten op bomen, zijn op hun beurt ook weer een plek waar allerlei soorten voorkomen. Op de zeldzame tonderzwam kunnen zich unieke insectencombinaties ontwikkelen. Nu de tonderzwam aan een opmars bezig is, komen ook deze bijzondere insecten weer terug.
    Insect herbivore- associated organisms affect plant responses to herbivory
    Zhu, F. ; Poelman, E.H. ; Dicke, M. - \ 2014
    New Phytologist 204 (2014)2. - ISSN 0028-646X - p. 315 - 321.
    spodoptera-littoralis - mediated interactions - indirect defense - host - virus - symbionts - parasites - caterpillars - arabidopsis - hypothesis
    In nature, plants interact with many organisms and need to integrate their responses to these diverse community members. Knowledge on plant-insect relationships has accumulated rapidly during the last decades. Yet most studies on direct or indirect defences of plants against herbivory have treated herbivores as individual stressors. However, herbivores often consist of communities themselves, comprising organisms such as parasites and symbionts, which may have important effects on the herbivore phenotype, and consequently on interactions of the herbivore with its food plant. Here, we review how herbivore-associated organisms affect plant-herbivore interactions. Organisms associated with herbivores can directly affect how a plant interacts with their herbivorous hosts, by interfering with plant signal-transduction pathways, repressing the expression of plant defence-related genes, or altering plant secondary metabolism. In addition, herbivore-associated organisms can also affect plant responses indirectly by their effect on the behaviour and physiology of their herbivore host. The changes in plant phenotype that arise from herbivore-associated organisms may subsequently affect interactions with other community members, thereby impacting community dynamics. Furthermore, herbivore-associated organisms may act as a hidden driving force of plant-herbivore coevolution. Therefore, to understand plant-herbivore interactions it is important to realize that every single herbivorous insect constitutes a community in itself.
    Karperziekten in Nederland: toen en nu
    Haenen, O.L.M. - \ 2014
    Aquacultuur 29 (2014)5. - ISSN 1382-2764 - p. 36 - 41.
    visziekten - karper - cyprinidae - parasieten - bacterieziekten - virusziekten - fish diseases - carp - cyprinidae - parasites - bacterial diseases - viral diseases
    Ingegaan wordt op de belangrijkste ziekten van wilde en gehouden karper in Nederland. Daarbij gaat het zowel om al heel lang bekende als om één nieuwe ziekte, optredend in de diverse jaargetijden.
    Infectious disease agents mediate interaction in food webs and ecosystems
    Selaković, S. ; Ruiter, P.C. de; Heesterbeek, J.A.P. - \ 2014
    Proceedings of the Royal Society. B: Biological Sciences 281 (2014)1777. - ISSN 0962-8452 - 11 p.
    biological-control - population-dynamics - species-diversity - mustela-nigripes - canine-distemper - african lions - host behavior - coral-reef - parasites - communities
    Infectious agents are part of food webs and ecosystems via the relationship with their host species that, in turn, interact with both hosts and non-hosts. Through these interactions, infectious agents influence food webs in terms of structure, functioning and stability. The present literature shows a broad range of impacts of infectious agents on food webs, and by cataloguing that range, we worked towards defining the various mechanisms and their specific effects. To explore the impact, a direct approach is to study changes in food-web properties with infectious agents as separate species in the web, acting as additional nodes, with links to their host species. An indirect approach concentrates not on adding new nodes and links, but on the ways that infectious agents affect the existing links across host and non-host nodes, by influencing the 'quality' of consumer-resource interaction as it depends on the epidemiological state host involved. Both approaches are natural from an ecological point of view, but the indirect approach may connect more straightforwardly to commonly used tools in infectious disease dynamics.
    Slimme monitor bindt strijd aan met bloedluis
    Mul, M.F. - \ 2014
    V-focus 2014 (2014)1. - ISSN 1574-1575 - p. 20 - 21.
    pluimveehouderij - pluimvee - diergezondheid - pluimveeziekten - dierziekten - dierpathologie - parasieten - mijtenbestrijding - monitoring - prototypes - dierenwelzijn - dierlijke productie - dermanyssus - poultry farming - poultry - animal health - poultry diseases - animal diseases - animal pathology - parasites - mite control - monitoring - prototypes - animal welfare - animal production - dermanyssus
    Bloedluis of vogelmijt is een serieus probleem in de pluimveehouderij. De huidige bestrijdingsmiddelen bieden geen totaaloplossing. Binnen het project ‘Beheersen Bloedluisproblematiek’ wordt nu een slimme monitor ontwikkeld die pluimveehouders moet helpen om de bloedluisproblematiek op hun bedrijf te minimaliseren. Een werkend prototype is inmiddels gebouwd, in 2014 wordt deze gevalideerd.
    Zoekkaart Bewoners van het Bijenhotel, onderdeel van onderzoek bijen en bloemen in de stad
    Alebeek, F.A.N. van - \ 2013
    Lelystad :
    apidae - vespidae - mijten - parasieten - drosophilidae - beschrijvingen - activiteit - foto's - apidae - vespidae - mites - parasites - drosophilidae - descriptions - activity - photographs
    Zoekkaart met informatie en afbeelingen van bewoners van het bijenhotel en een zoekkaart met overige bezoekers van het bijenhotel zoals parasieten en andere beestjes. Deze zoekkaart is onderdeel van het project ' Bijen & Bloemen in de Stad 'van Landschapsbeheer Flevoland en Wageningen UR – PPO - AGV Lelystad.
    Ecology of parasite-vector interactions
    Takken, W. ; Koenraadt, C.J.M. - \ 2013
    Wageningen : Wageningen Academic Publishers (Ecology and control of vector-borne diseases vol. 3) - ISBN 9789086861880 - 272
    gastheer parasiet relaties - parasieten - vectoren, ziekten - ziekten overgebracht door vectoren - vectorbestrijding - ecologie - medische entomologie - host parasite relationships - parasites - disease vectors - vector-borne diseases - vector control - ecology - medical entomology
    Vector-borne diseases continue to be one of the most important determinants affecting human and animal health. Large numbers of people suffer from diseases like malaria, dengue, filariasis and leishmaniasis, especially in the tropics. Whereas these diseases were eradicated from the temperate climate zones, in recent years the rising incidence of 'emerging' vector-borne diseases such as bluetongue, West Nile Virus, Lyme disease, tick-borne encephalitis and the recent outbreaks of chikungunya and dengue in southern Europe provide evidence that these diseases are resilient and can disperse to other regions and continents where before they were not present or relevant. Many tools for the management of vector-borne diseases are currently under pressure because of increasing drug and insecticide resistance, as well as the realization of biological variation of parasites and vectors and their ecosystems. At the same time, progress in our understanding of genetics, immunology, population biology and epidemiology allow for a better understanding of parasite-vector interactions. Here the state-of-the-art of these interactions is being reviewed, and means for using this information for advanced strategies of vector-borne disease control are proposed. This 3rd edition of ECVD aims to provide a rapid overview of recent developments in the field of parasite-vector interactions and how this can be used for more effective and sustainable disease control.
    OYSTERECOVER: The Efficiency of Different Types of Oyster Spat Collectors for Ostrea edulis
    Brink, A.M. van den - \ 2012
    Yerseke : IMARES (Report / IMARES Wageningen UR C095/12) - 33
    mariene biologie - oesterschelpen - voortplanting - parasieten - marine biology - oyster shells - reproduction - parasites
    The aim of this task is to potentially identify a way to develop more efficient spat collecting techniques that may compensate for the lower survival rate of the oysters caused by the Bonamia ostreae parasite. As part of the project a review of the efficiency of different spat collectors was conducted with the intention of recommending three collector types to be tested in the field. The aim of this task is to potentially identify a way to develop more efficient spat collecting techniques that may compensate for the lower survival rate of the oysters caused by the Bonamia ostreae parasite.
    Myxidium giardi, een myxospore parasiet van wilde paling
    Engelsma, M.Y. ; Haenen, O.L.M. - \ 2012
    Aquacultuur 27 (2012)4. - ISSN 1382-2764 - p. 33 - 35.
    palingen - palingteelt - visteelt - myxidium giardi - parasieten - protozoa - visziekten - visvijvers - eels - eel culture - fish culture - myxidium giardi - parasites - protozoa - fish diseases - fish ponds
    In Nederland is de myxospore parasiet Myxidium giardi in mei 2005 in beeld gekomen bij palingen in fuiken op het IJsselmeer. Op palingkwekerijen in broedhuizen komt de parasiet doorgaans niet voor, wel in vijversystemen.
    Karpersterfte in Nederland: Nederlands instituut onderzoekt karpersterftes
    Haenen, O.L.M. ; Tulden, P.W. van; Engelsma, M.Y. - \ 2012
    Visionair : het vakblad van sportvisserij Nederland 5 (2012)23. - ISSN 1569-7533 - p. 18 - 21.
    karper - visstand - sportvissen - hengelsport - virusziekten - spring viremia of carp virus - virussen - bacteriën - parasieten - carp - fish stocks - game fishes - angling - viral diseases - spring viremia of carp virus - viruses - bacteria - parasites
    Voor veel sportvissers is karper de favoriete vissoort. Dankzij een doordacht water- en visstandbeheer kent ons land een gezonde karperpopulatie. Tocht treedt er af en toe sterfte op bij deze vissen. Mede op verzoek van Sportvisserij Nederland onderzoekt het Centraal Veterinair Instituut in Lelystad de oorzaak van deze sterftes.
    Higher attack rate of fish-borne trematodes (Heterophyidae) in common carp fingerlings (Cyprinus carpio) at lower fish weight
    Boerlage, A.S. ; Graat, E.A.M. ; Verreth, J.A.J. ; Jong, M.C.M. de - \ 2012
    Parasitology Research 111 (2012)2. - ISSN 0932-0113 - p. 875 - 879.
    vietnam - aquaculture - prevalence - infection - parasites - hosts
    Fish-borne zoonotic trematodes (FZTs) can cause pathology in humans. Fish weight was reported as important risk factor for transmission from snail to fish. However, in fingerlings, the relation between fish weight and infection is unknown. Aim was quantifying the effect of fish weight on infection probability, attack rate, and metacercariae burden of FZTs in common carps (Cyprinus carpio) between 1 and 20 g. Fish were either used as controls (n¿=¿66) or exposed to 250 parapleurolophocercous cercariae (n¿=¿254). Fish weight was analysed as continuous explanatory variable or classified in four categories with average weights of 0.7 g (n¿=¿116), 4.0 g (n¿=¿58), 8.2 g (n¿=¿57) and 14.2 g (n¿=¿23). The inverse relation between percentage of fish with metacercariae and fish weight is reflected in lower percentages of infected fish at higher weights [%infected¿=¿100/(1¿+¿e[-2.02+0.15 fish weight (g)]); p¿
    Zonder de gewone sachembij, Anthohora plumipes (Hymenoptera, Apidae), geen Sitaris muralis (Coleoptera, Meloidae) in Nederland
    Belgers, J.D.M. ; Teunissen, A.P.J.A. - \ 2012
    Entomologische Berichten 72 (2012)1-2. - ISSN 0013-8827 - p. 45 - 49.
    anthophora - apidae - nesten - parasieten - coleoptera - anthophora - apidae - nests - parasites - coleoptera
    In Nederland komen tien oliekervers (Meloidae) voor. Slechts één daarvan is voor zijn voortbestaan afhankelijk van de gewone sachembij, Anthophora plumipes: Sitaris muralis. Sinds 2006 is er in Nederland sprake van en toename van meldingen van S. muralis. De uitbreiding heeft klimaatverandering als mogelijke oorzaak, maar wellicht ook de toegenomen aandacht voor voor S. muralis en wilde bijen onder natuurliefhebbers
    Weidegang van geiten
    Eekeren, N.J.M. van - \ 2011
    BioKennis bericht Geiten 2011 (2011)14. - 4 p.
    begrazing - beweidingssystemen - geitenhouderij - biologische landbouw - graslandbeheer - maagdarmziekten - parasieten - coccidiose - grazing - grazing systems - goat keeping - organic farming - grassland management - gastrointestinal diseases - parasites - coccidiosis
    Weidegang is belangrijk voor het welzijn van geiten. Daarmee is het een essentieel onderdeel van de bedrijfsvoering en bovendien onderscheidend voor de biologische geitenhouderij. Helaas levert weidegang bij geiten ook een aantal knelpunten op zoals: het risico op een maagdarmwormenbesmetting, ruimtegebrek op huiskavel, opname en benutting van vers gras, arbeid en het weiden in productiegroepen. In het onderzoek van het project BIOGEIT is in de afgelopen jaren veel aandacht geweest voor deze knelpunten. In dit bioKennisbericht de stand van zaken.
    Effect of fish size on transmission of fish-borne trematodes (Heterophyidae) to common carps (Cyprinus carpio) and implications for intervention
    Boerlage, A.S. ; Graat, E.A.M. ; Verreth, J.A.J. ; Jong, M.C.M. de - \ 2011
    Aquaculture 321 (2011)3-4. - ISSN 0044-8486 - p. 179 - 184.
    centrocestus-formosanus - haplorchis-pumilio - clonorchiasis - aquaculture - vietnam - infections - parasites - china
    Fish-borne trematodes are reported to affect the health of more than 40 million people worldwide. Few experimental studies are available on fish size dependent gain (attack rates of cercariae) or loss (mortality of metacercariae) of fish-borne trematodes. Aim was to quantify the relation between fish size and attack rates of fish-borne trematodes in common carps (Cyprinus carpio). Effect of fish size and cercariae dose were tested in a 3 × 4 factorial design with 5 fish per combination of treatments (n = 60). Individually kept small (1 g), medium (25 g) and large (45 g) carps were exposed to 0, 10, 50 or 250 parapleurolophocercous-cercariae (Heterophyidae) for 48 h. Fish were digested 21 days post exposure to count metacercariae. Percentages of fish containing metacercariae, and attack rates of cercariae to fish were higher (63%, 0.08 fish infected per cercariae) for small common carps than for medium (20%, 0.004 fish infected per cercariae) and large common carps (5%, 0.0007 fish infected per cercariae), but never zero. It was concluded that exposure of small fish is an important risk factor for transmission of fish-borne trematodes. The results suggest that control measurements aimed at reducing transmission to small fish may considerably reduce the absolute amount of fish-borne trematodes.
    Studies on preventive strategies and alternative treatments against roundworm in organic pig production systems
    Borgsteede, F.H.M. ; Gaasenbeek, C.P.H. ; Krimpen, M.M. van; Maurer, V. ; Mejer, H.E. ; Spoolder, H.A.M. ; Thamsborg, S.M. ; Vermeer, H.M. - \ 2011
    NJAS Wageningen Journal of Life Sciences 58 (2011)3-4. - ISSN 1573-5214 - p. 173 - 176.
    ascaris-suum infection - helminth infections - egg counts - parasites
    Organic and many ‘low input’ production standards for pigs require outdoor access, and as a consequence expose the animals to a wide range of potential endo- and ectoparasite infection sources. Conventional anthelmintics are used to control parasitic infections, but their preventive use is banned by the organic standards. The present paper investigates the potential of prevention of infection through better hygiene. Attempts were made to break the infection cycle through thorough pen cleaning 10 weeks after the pigs had been introduced to the pen. Although pen fouling can be reduced, the level of roundworm (Ascaris suum) infection was not reduced. Regular deworming with conventional medication is still required in addition to good hygiene
    Stabilization and complex dynamics in a predator-prey model with predator suffering from an infectious disease
    Kooi, B.W. ; Voorn, G.A.K. van; Das, Krishna pada - \ 2011
    Ecological Complexity 8 (2011)1. - ISSN 1476-945X - p. 113 - 122.
    numerical bifurcation-analysis - 3-species food-chain - to-cycle connections - homoclinic bifurcations - conclusion drawn - chaos - population - parasites - communities - invasion
    We study the effects of a non-specified infectious disease of the predator on the dynamics a predator–prey system, by evaluating the dynamics of a three-dimensional model. The predator population in this (PSI) model is split into a susceptible and an unrecoverable infected population, while all newborn are susceptible. The incidence rate at which susceptible become infectious is described by a Holling type II functional response giving saturation when the number of susceptibles increases. From a modeling context this three-dimensional model is in the limit case similar to the well-known 3D Rosenzweig–MacArthur (RM) model, with the infected population replacing the top-predator. The RM model is known for the Shil’nikov bifurcation, which is associated to the chaotic behaviour. The effects of the disease are considered to be changes in the parameters that represent relative predation efficiency and mortality rates. A combination of analysis, numerical integration and numerical continuation techniques are used to perform a bifurcation analysis of the model. The positive stationary solution of the disease free, two-dimensional predator–prey system is either a stable equilibrium or a stable limit cycle where the transition occurs at the Hopf bifurcation. For a biologically applicable parameter set, it is found that when the infected individuals feed less fast or less effective than the susceptibles there is bi-stability where the two-dimensional disease free state co-exists with a stable equilibrium for the three-dimensional PSI system. The introduction of a disease can also cause chaos when the infected predator individuals are ecologically not functioning (not feeding and no offspring). However, under small parameter changes first the Shil’nikov bifurcation, and hence the chaotic behaviour, disappears followed by the Hopf bifurcation that marks the existence of limit cycles of the three-dimensional PSI system. As such, an infectious disease has a strongly stabilizing effect on the predator–prey system, similar to the existence of weak links in food webs.
    Arrhenophagus chionaspidis tegen rozeschildluis
    Pijnakker, J. ; Leman, A. ; Ramakers, P.M.J. - \ 2010
    boomkwekerijen - gewasbescherming - aulacaspis rosae - sluipwespen - parasieten - forest nurseries - plant protection - aulacaspis rosae - parasitoid wasps - parasites
    Poster over de sluipwesp Arrhenophagus chionaspidis die als natuurlijke vijand ingezet kan worden tegen rozeschildluis, Aulacaspis rosae
    Signatures of adaptation to obligate biotrophy in the Hyaloperonospora arabidopsidis genome
    Baxter, L. ; Tripathy, S. ; Ishaque, N. ; Boot, N. ; Cabral, A. ; Kemen, E. ; Thines, M. ; Ah-Fong, A. ; Anderson, R. ; Badejoko, W. ; Bittner-Eddy, P. ; Boore, J.L. ; Chibucos, M.C. ; Coates, M. ; Dehal, P. ; Delehaunty, K. ; Dong, S. ; Downton, P. ; Dumas, B. ; Fabro, G. ; Fronick, C. ; Fuerstenberg, S.I. ; Fulton, L. ; Gaulin, E. ; Govers, F. ; Hughes, L. ; Humphray, S. ; Jiang, R.H.Y. ; Judelson, H. ; Kamoun, S. ; Kyung, K. ; Meijer, H.J.G. ; Minx, P. ; Morris, P. ; Nelson, J. ; Phuntumart, V. ; Qutob, D. ; Rehmany, A. ; Rougon-Cardoso, A. ; Ryden, P. ; Torto-Alalibo, T. ; Studholme, D. ; Wang, Y. ; Win, J. ; Wood, J. ; Clifton, S.W. ; Rogers, J. ; Ackerveken, G. van den; Jones, J.D.G. ; McDowell, J.M. ; Beynon, J. ; Tyler, B.M. - \ 2010
    Science 330 (2010)6010. - ISSN 0036-8075 - p. 1549 - 1551.
    sojae-effector avr1b - downy mildew - phytophthora - plant - thaliana - cells - suppression - parasites - proteins - delivery
    Many oomycete and fungal plant pathogens are obligate biotrophs, which extract nutrients only from living plant tissue and cannot grow apart from their hosts. Although these pathogens cause substantial crop losses, little is known about the molecular basis or evolution of obligate biotrophy. Here, we report the genome sequence of the oomycete Hyaloperonospora arabidopsidis (Hpa), an obligate biotroph and natural pathogen of Arabidopsis thaliana. In comparison with genomes of related, hemibiotrophic Phytophthora species, the Hpa genome exhibits dramatic reductions in genes encoding (i) RXLR effectors and other secreted pathogenicity proteins, (ii) enzymes for assimilation of inorganic nitrogen and sulfur, and (iii) proteins associated with zoospore formation and motility. These attributes comprise a genomic signature of evolution toward obligate biotrophy
    Stevige klap voor trichodoriden
    Hoek, H. ; Molendijk, L.P.G. - \ 2010
    Nieuwe oogst / Magazine gewas 6 (2010)20. - ISSN 1871-093X - p. 4 - 5.
    grondsterilisatie - paratrichodorus pachydermus - nematoda - trichodoridae - parasieten - parasitaire nematoden - soil sterilization - paratrichodorus pachydermus - nematoda - trichodoridae - parasites - parasitic nematodes
    Een goed uitgevoerde natte grondontsmetting blijkt jaren effectief tegen Paratrichodorus pachydermus. Trichodoren zijn lastige aaltjes en ze parasiteren op veel gewassen. Dat maakt de aanpak lastig, maar belangrijk.
    Check title to add to marked list
    << previous | next >>

    Show 20 50 100 records per page

     
    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.