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.

    We have a manual that explains all the features 

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    In memoriam: Jan Willem te Kloeze
    Duim, V.R. van der - \ 2020
    Vrijetijdstudies 37 (2020)3. - ISSN 1384-2439 - p. 7 - 7.
    Tourism and the Corona crisis : Some ATLAS reflections
    Russo, Antonio Paulo ; Duim, V.R. van der; Duncan, Tara - \ 2020
    ATLAS Association for Tourism and Leisure Education (ATLAS Tourism and Leisure Review 2) - 95 p.
    After the bite: Bacterial transmission from grey seals (Halichoerus grypus) to harbour porpoises (Phocoena phocoena)
    Gilbert, Maarten J. ; IJsseldijk, Lonneke L. ; Rubio-García, Ana ; Gröne, Andrea ; Duim, Birgitta ; Rossen, John ; Zomer, Aldert L. ; Wagenaar, Jaap A. - \ 2020
    Royal Society Open Science 7 (2020)5. - ISSN 2054-5703
    Bacterial transmission - Common seal - Grey seal - Harbour porpoise - Microbiome

    Recent population growth of the harbour porpoise (Phocoena phocoena), grey seal (Halichoerus grypus) and common seal (Phoca vitulina) in the North Sea has increased potential interaction between these species. Grey seals are known to attack harbour porpoises. Some harbour porpoises survive initially, but succumb eventually, often showing severely infected skin lesions. Bacteria transferred from the grey seal oral cavity may be involved in these infections and eventual death of the animal. In humans, seal bites are known to cause severe infections. In this study, a 16S rRNA-based microbiome sequencing approach is used to identify the oral bacterial diversity in harbour porpoises, grey seals and common seals; detect the potential transfer of bacteria from grey seals to harbour porpoises by biting and provide insights in the bacteria with zoonotic potential present in the seal oral cavity. β-diversity analysis showed that 12.9% (4/31) of the harbour porpoise skin lesion microbiomes resembled seal oral microbiomes, while most of the other skin lesion microbiomes also showed seal-associated bacterial species, including potential pathogens. In conclusion, this study shows that bacterial transmission from grey seals to harbour porpoises by biting is highly likely and that seal oral cavities harbour many bacterial pathogens with zoonotic potential.

    Networks and flows of conservation finance: the case of World Wide Fund for Nature (WWF)
    Anyango-van Zwieten, Nowella - \ 2020
    Wageningen University. Promotor(en): V.R. van der Duim; M. Lamers. - Wageningen : Wageningen University - ISBN 9789463953405 - 174

    Against the background of overall decline and inadequacy of funding for nature conservation, the budgets of the five largest nature conservation organisations have been growing significantly since the 1990s to command over 50% of globally available conservation funding. This thesis focusses on World Wide Fund for Nature (WWF) to show how large nature conservation organisations maintain and expand funding for global biodiversity conservation. It begins exploratorily with a thematic review of 64 peer-reviewed articles to find dominant themes recurring around the funding of biodiversity conservation between 2010-2016. The principle finding is that the main challenge in biodiversity financing is not only underfunding but that quite often available funds do not go where they are most needed. Conservation networks play a key role in determining financial flows. This informs the choice for a conceptual framework that is inspired by the network theory postulated by Manuel Castells. This thesis examines how WWF uses networking to maintain and expand funding from public sources, and then shows how much financial income WWF receives from the corporate sector in comparison to other income streams, including from market-based approaches. The main finding is that WWF has been successful in increasing its funding from the public sector at 7.5% p.a. by being in “right networks”, speaking the “right language”, and connecting to “relevant flows”, including dominant governmental ministries, bilateral and multilateral organisations, emerging and graduated economies and the private sector that relates closely with them. However, WWF’s income from the corporate sector has remained low at 11% p.a. and stagnant, and its “bankable projects” are yet to produce any income and remain philanthropic. WWF’s most important funding base is private small donors who contribute 40% of its income. Based on these findings, this thesis points to a possible scenario on the future of conservation finance that combines the time-tested reliability of private small donor funding with the potential of blended finance, that would address both underfunding and poor distribution of conservation funds, for future biodiversity conservation.

    Fecal Carriage of Extended-Spectrum-β-Lactamase/AmpC-Producing Escherichia coli in Horses
    Hordijk, Joost ; Farmakioti, Evangelia ; Smit, Lidwien A.M. ; Duim, Birgitta ; Graveland, Haitske ; Theelen, Mathijs J.P. ; Wagenaar, Jaap A. - \ 2020
    Applied and Environmental Microbiology 86 (2020)8. - ISSN 0099-2240
    AmpC - antimicrobial resistance - equidae - ESBL - fecal carriage - risk factor

    A nationwide study on the occurrence of extended-spectrum β-lactamase (ESBL)/AmpC in nonhospitalized horses in the Netherlands was performed. Molecular characterization was done, and questionnaires were analyzed to identify factors associated with carriage. In total, 796 horse owners were approached; 281 of these submitted a fecal sample from their horse(s), resulting in 362 samples. All samples were cultured qualitatively in Luria-Bertani (LB) broth and subsequently on MacConkey agar, both supplemented with 1 mg/liter cefotaxime (LB+ and MC+). Positive samples were subsequently cultured quantitatively on MC+. Initial extended-spectrum-β-lactamase (ESBL)/AmpC screening was performed by PCR, followed by whole-genome sequencing on selected strains. Associations between ESBL/AmpC carriage and questionnaire items were analyzed using a univariate generalized estimating equation (GEE) regression analysis, followed by a multiple GEE model for relevant factors. In total, 39 of 362 samples (11%) were determined to be positive for ESBL/AmpC. blaCTX-M-1-carrying isolates were obtained from 77% of positive samples (n = 30). Other ESBL/AmpC genes observed included blaCTX-M-2, blaCTX-M-14, blaCTX-M-15, blaCTX-M-32, blaSHV-12, blaCMY-2, and blaACT-10 A high association between the presence of blaCTX-M-1 and IncHI1 plasmids was observed (46% of samples; n = 18). Based on core genome analysis (n = 48 isolates), six Escherichia coli clusters were identified, three of which represented 80% of the isolates. A negative association between ESBL/AmpC carriage and horses being in contact with other horses at a different site was observed. The presence of a dog on the premises and housing in a more densely human-populated region were positively associated.IMPORTANCE Extended-spectrum β-lactamases (ESBLs) are widespread in human and animal populations and in the environment. Many different ESBL variants exist. The dissemination of ESBLs within and between populations and the environment is also largely influenced by genetic mobile elements (e.g., plasmids) that facilitate spread of these ESBLs. In order to identify potential attributable ESBL sources for, e.g., the human population, it is important to identify the different ESBL variants, the bacteria carrying them, and the potential risk factors for ESBL carriage from other potential sources. This nationwide study focuses on ESBL carriage in the open horse population and investigated the molecular characteristics, geographical distribution throughout the Netherlands, and potential risk factors for fecal ESBL carriage in horses. These data can be used for future attribution studies in order to reduce potential transmission of ESBL-producing bacteria between sources.

    Netwerken voor Veluwe op 1: Samenhang, samenwerking en focus
    Duim, Rene van der - \ 2020
    Keynote
    Specific staphylococcal cassette chromosome mec (SCCmec) types and clonal complexes are associated with low-level amoxicillin/clavulanic acid and cefalotin resistance in methicillin-resistant Staphylococcus pseudintermedius
    Wegener, Alice ; Damborg, Peter ; Guardabassi, Luca ; Moodley, Arshnee ; Mughini-Gras, Lapo ; Duim, Birgitta ; Wagenaar, Jaap A. ; Broens, Els M. - \ 2020
    Journal of Antimicrobial Chemotherapy 75 (2020)3. - ISSN 0305-7453 - p. 508 - 511.

    BACKGROUND: Staphylococcus pseudintermedius is a common pathogen in dogs and methicillin resistance has emerged over recent decades. According to the current guidelines, S. pseudintermedius displaying oxacillin resistance should be reported as resistant to all β-lactams. OBJECTIVES: To identify possible associations between β-lactam resistance levels and clonal complexes (CCs) and/or staphylococcal cassette chromosome mec (SCCmec) types in methicillin-resistant S. pseudintermedius (MRSP). METHODS: MICs of oxacillin, penicillin, ampicillin, amoxicillin/clavulanic acid and cefalotin were determined by broth microdilution for 86 clinical canine MRSP isolates from Denmark and the Netherlands. PCR and sequencing were used for SCCmec typing and MLST. RESULTS: Isolates belonged to CC71 (n = 36), CC258 (n = 33), CC45 (n = 11), CC68 (n = 1) and five singleton STs. SCCmecII-III was exclusively found in CC71 and SCCmecIV was significantly associated with CC258. SCCmecV and non-typeable SCCmec types occurred in 4 and 14 isolates, respectively. SCCmecIV was associated with lower MICs of oxacillin (<2 mg/L), ampicillin (<8 mg/L) and amoxicillin/clavulanic acid (<4 mg/L) and with susceptibility to cefalotin (<4 mg/L). All isolates harbouring SCCmecV were susceptible to cefalotin as well. CONCLUSIONS: SCCmec types were associated with different CCs and with either high- or low-level resistance to different β-lactams. The finding of amoxicillin/clavulanic acid (20%) and cefalotin (70%) in vitro susceptibility across all CCs might have clinical implications, since amoxicillin/clavulanic acid and first-generation cephalosporins are first-choice antibiotics for treatment of S. pseudintermedius infections. Pharmacokinetic/pharmacodynamic and clinical outcome studies are warranted to evaluate the in vivo efficacy of these β-lactams for treatment of MRSP infections.

    Wat kunnen we doen aan de nadelen van toerisme?
    Duim, Rene van der - \ 2020

    Radio interview

    ‘Ons vakantiegedrag bedreigt niet alleen het klimaat’
    Duim, V.R. van der; Viëtor, Marnix - \ 2020
    Het Parool 2020 (2020)24 januari.
    Opponent for PhD defence
    Duim, Rene van der - \ 2019
    ATLAS Tourism and Leisure Review (Journal)
    Onderwater, L. ; Duim, Rene van der - \ 2019
    ATLAS Tourism and Leisure Review (2019). - ISSN 2468-6719
    MRSA in Pigs and the Environment as a Risk for Employees in Pig-Dense Areas of Sri Lanka
    Kalupahana, Ruwani S. ; Duim, Birgitta ; Verstappen, Koen M. ; Gamage, Chandika D. ; Dissanayake, Nilanthi ; Ranatunga, Lakmali ; Graveland, Haitske ; Wagenaar, Jaap A. - \ 2019
    Frontiers in Sustainable Food Systems 3 (2019). - ISSN 2571-581X
    food chain - livestock - MRSA - pigs - pork - small-scale farming - Sri Lanka

    Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is widely spread in intensive farming systems and considered an occupational risk for humans. MRSA is a common nosocomial pathogen in Sri Lanka, but information about prevalence of MRSA in pig farming in Sri Lanka is scarce. Farming is largely a small-scale confined system, and antimicrobial use in these systems is poorly regulated with no veterinary oversight for use. This study identified on 100 pig farms a MRSA prevalence of 10%, with MRSA-positive samples in pigs, farm workers, and dust of 1.2% (6/493), 2.2% (5/228), and 0.8% (1/119), respectively. The genotypes of these strains were compared with 22 human MRSA strains from a hospital; identified in pig farms were CC1/ST1/t127, CC5/ST5/t002, CC6/ST6/t304, or t4403, singleton ST3841/t10744, of which CC1/ST1/t127 and CC/ST5/t002 were present both in isolates from pigs and humans, suggesting a human origin. LA-MRSA types associated with intensive farming (ST398, ST9) were not detected. The low MRSA prevalence at farm level (10% vs. up to 70% in intensive farming systems) might be due to the management of these farms—open air and low dust. We conclude that in Sri Lanka the occupational risk for MRSA acquisition of people working with pigs in the described management systems is negligible.

    Op weg naar een inclusieve reisindustrie
    Duim, Rene van der - \ 2019
    Toegankelijk toerism : Op weg naar een 'inclusieve' reisindustrie
    Duim, V.R. van der; Smit, B. ; Ormond, M.E. ; Papp, B. ; Fricke, J. ; Schmitz, Paulina ; Heiningen, Joost van - \ 2019
    Wageningen : Wageningen University and Research Center - 31 p.
    Beyond myths: towards a reflexive and critical understanding of tourism innovations
    Duim, V.R. van der - \ 2019
    Innovation for sustainability: navigating between theory and practice
    Duim, V.R. van der - \ 2019
    Opponent for PhD defence
    Duim, Rene van der - \ 2019
    Opponent for PhD defence
    Duim, Rene van der - \ 2019
    Opponent for PhD defence
    Duim, Rene van der - \ 2019
    'Verduurzamen, Hoe Dan?!
    Duim, Rene van der - \ 2019
    Lecture
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