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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Grounding the future in the past and the present : community-based sustainability in an old Japanese mining town
Saito, J. ; Sousa, Mary de; Nolan, Cathy ; Wals, A.E.J. - \ 2017
In: Envisioning futures for environmental and sustainability education / Corcoran, Peter Blaze, Weakland, Joseph P., Wals, Arjen E.J., Wageningen : Wageningen Academic Publishers - ISBN 9789086863037 - p. 427 - 435.
Around the world there are attempts by communities to re-create themselves based on values and customs that are more in harmony with the past and the future, and more mindful of people and planet. A question is whether these communities can do so in a globalising world where it is impossible to escape, for instance, digitalization and climate change. How to balance this attempt to live lightly, meaningfully and locally, while not becoming isolated and impaired by only looking inward with likeminded people? UNESCO identified the town of Omori in Japan as a town that seems to be successful in reviving a town in decline. A mixed group of international experts, scholars, practitioners and policy-makers from all corners of the world gathered in Omori to see for themselves what sustainable living might look like. By talking to the community and getting a sense of place they jointly reflected on the implications for education in the context of sustainable development. This chapter describes the town of Omori and offers insights in the future of sustainability education that are driven by practice as opposed to by theory.
Feed intake, growth, and body and carcass attributes of feedlot steers supplemented with two levels of calcium nitrate or urea
Hegarty, R.S. ; Miller, J. ; Oelbrandt, N. ; Li, L. ; Luijben, J.P.M. ; Robinson, D.L. ; Nolan, J.V. ; Perdok, H.B. - \ 2016
Journal of Animal Science 94 (2016)12. - ISSN 0021-8812 - p. 5372 - 5381.
Beef cattle - Body composition - Carcass - Feedlot - Nitrate - Urea

Nitrate supplementation has been shown to be effective in reducing enteric methane emission from ruminants, but there have been few large-scale studies assessing the effects of level of nitrate supplementation on feed intake, animal growth, or carcass and meat quality attributes of beef cattle. A feedlot study was conducted to assess the effects of supplementing 0.25 or 0.45% NPN in dietary DM as either urea (Ur) or calcium nitrate (CaN) on DMI, ADG, G:F, and carcass attributes of feedlot steers (n = 383). The levels of NPN inclusion were selected as those at which nitrate has previously achieved measurable mitigation of enteric methane. The higher level of NPN inclusion reduced ADG as did replacement of Ur with CaN (P <0.01). A combined analysis of DMI for 139 steers with individual animal intake data and pen-average intakes for 244 bunk-fed steers showed a significant interaction between NPN source and level (P = 0.02) with steers on the high-CaN diet eating less than those on the other 3 diets (P <0.001). Neither level nor NPN source significantly affected cattle G:F. There was a tendency (P = 0.05) for nitratesupplemented cattle to have a slower rate of eating (g DMI/min) than Ur-supplemented cattle. When adjusted for BW, neither NPN source nor inclusion level affected cross-sectional area of the LM or fatness measured on the live animal. Similarly, there were no significant main effects of treatments on dressing percentage or fat depth or muscling attributes of the carcass after adjustment for HCW (P > 0.05). Analysis of composited meat samples showed no detectable nitrates or nitrosamines in raw or cooked meat, and the level of nitrate detected in meat from nitrate-supplemented cattle was no higher than for Ur-fed cattle (P > 0.05). We conclude that increasing NPN inclusion from 0.25 to 0.45% NPN in dietary DM and replacing Ur with CaN decreased ADG in feedlot cattle without improving G:F.

Biodiversity and its drivers and pressures of change in the wetlands of the Upper Paraguay–Guaporé Ecotone, Mato Grosso (Brazil)
Silva, Carolina Joana Da; Silva Sousa, Keid Nolan ; Ikeda-Castrillon, Solange Kimie ; Jongman, R.H.G. - \ 2015
Land Use Policy 47 (2015). - ISSN 0264-8377 - p. 163 - 178.
Amazon - Bionorte - Hydroelectricity - DPSIR - CBD - biodiversity planning
The biogeographic regions Amazonia and the Pantanal, two areas of high biodiversity importance, have a link to each other through an ecotone formed by the upstream part of the rivers Paraguay and Guaporé. The two river basins share part of their flora and fauna species and in this ecotone species exchange processes takes place. Therefore it should be considered as an important area to realize the targets for2020 of the Convention of Biological Diversity (CBD) at the regional level. However, since over 20 years this area is under severe pressure of land conversion and is increasingly threatened by river change, due to building of hydroelectric power stations. This causes direct and indirect damaging effects on the region and on its role as biodiversity corridor. In the framework of the BioNorte project we carried out a Driver,Pressure, State, Impact, Response (DPSIR) analysis of the region and included a stakeholder analysis. The direct pressures are changes in the use of land and rivers that constitute the river ecotone between the Amazon and Pantanal. Indirect pressures are road access, opening the land for further deforestation and agricultural developments. Fragmentation of the remnant forest patches in combination with river fragmentation can cause decline in biodiversity, prevent species exchange between the Amazonia and the Pantanal and fish to spawn upstream. If river flows are being blocked, the flood pulse and the migration corridor of fish and the transport of plant seeds will be hampered. The societal response to this can be denial, a positive reaction by enforcement of traditional conservation actions or, as agreed at the COP2010 by the Convention of Parties to the CBD as a goal for the year 2020, the integration of biodiversity targets into land development toward sustainable land use by diminishing river and forest fragmentation.
A systematic review and meta-analysis examining the effect of eating rate on energy intake and hunger
Robinson, E. ; Almiron-Roig, E. ; Rutters, F. ; Graaf, C. de; Forde, C.G. ; Smith, C.T. ; Nolan, S.J. ; Jebb, S.A. - \ 2014
American Journal of Clinical Nutrition 100 (2014)1. - ISSN 0002-9165 - p. 123 - 151.
libitum food-intake - particle-size - gut hormones - obese - meal - women - appetite - men - weight - consumption
Background: Reductions in eating rate are recommended to prevent and treat obesity; yet, the relation between eating rate and energy intake has not been systematically reviewed, with studies producing mixed results. Objective: Our main objective was to examine how experimentally manipulated differences in eating rate influence concurrent energy intake and subjective hunger ratings. Design: We systematically reviewed studies that experimentally manipulated eating rate and measured concurrent food intake, self-reported hunger, or both. We combined effect estimates from studies by using inverse variance meta-analysis, calculating the standardized mean difference (SMD) in food intake between fast and slow eating rate conditions. Results: Twenty-two studies were eligible for inclusion. Evidence indicated that a slower eating rate was associated with lower energy intake in comparison to a faster eating rate (random-effects SMD: 0.45; 95% CI: 0.25, 0.65; P <0.0001). Subgroup analysis indicated that the effect was consistent regardless of the type of manipulation used to alter eating rate, although there was a large amount of heterogeneity between studies. There was no significant relation between eating rate and hunger at the end of the meal or up to 3.5 h later. Conclusions: Evidence to date supports the notion that eating rate affects energy intake. Research is needed to identify effective interventions to reduce eating rate that can be adopted in everyday life to help limit excess consumption.
Complete genome sequence of Dehalobacter restrictus PER-K23T
Kruse, T.K. ; Maillard, J. ; Goodwin, L.A. ; Woyke, T. ; Teshima, H. ; Bruce, D.C. ; Detter, J.C. ; Tapia, R. ; Han, C. ; Huntemann, M. ; Wei, C.L. ; Han, J. ; Chen, A. ; Kyrpides, N. ; Szeto, E. ; Markowitz, V. ; Ivanova, N. ; Pagani, I. ; Pati, A. ; Pitluck, S. ; Nolan, M. ; Holliger, C. ; Smidt, H. - \ 2013
Standards in Genomic Sciences 8 (2013)3. - ISSN 1944-3277 - p. 375 - 388.
tetrachloroethene reductive dehalogenase - hafniense strain tce1 - desulfitobacterium-hafniense - dehalococcoides-ethenogenes - rna genes - bacteria - respiration - geobacter - protein - halorespiration
Dehalobacter restrictus strain PER-K23 (DSM 9455) is the type strain of the species Dehalobacter restrictus. D. restrictus strain PER-K23 grows by organohalide respiration, coupling the oxidation of H2 to the reductive dechlorination of tetra- or trichloroethene. Growth has not been observed with any other electron donor or acceptor, nor has fermentative growth been shown. Here we introduce the first full genome of a pure culture within the genus Dehalobacter. The 2,943,336 bp long genome contains 2,826 protein coding and 82 RNA genes, including 5 16S rRNA genes. Interestingly, the genome contains 25 predicted reductive dehalogenase genes, the majority of which appear to be full length. The reductive dehalogenase genes are mainly located in two clusters, suggesting a much larger potential for organohalide respiration than previously anticipated
26th Hohenheim Concensus Conference, September 11, 2010 Scientific substantiation of health claims: Evidence-based nutrition
Biesalski, H.K. ; Aggett, P.J. ; Anton, R. ; Bernstein, P.S. ; Blumberg, J. ; Heaney, R.P. ; Henry, J. ; Nolan, J.M. ; Richardson, D.P. ; Ommen, B. van; Witkamp, R.F. ; Rijkers, G.T. ; Zollner, I. - \ 2011
Nutrition 27 (2011)10. - ISSN 0899-9007 - p. S1 - S20.
beta-carotene - macular degeneration - glycemic index - vitamin-e - cardiovascular-disease - blood-glucose - lung-cancer - risk-factor - biomarkers - damage
Objective The objective was to define the term evidence based nutrition on the basis of expert discussions and scientific evidence. Methods and procedures The method used is the established Hohenheim Consensus Conference. The term “Hohenheim Consensus Conference” defines conferences dealing with nutrition-related topics. The major aim of the conference is to review the state of the art of a given topic with experts from different areas (basic science, clinicians, epidemiologists, etc.). Based on eight to 12 questions, the experts discuss short answers and try to come to a consensus. A scientifically based text is formulated that justifies the consensus answer. To discuss the requirements for the scientific substantiation of claims, the 26th Hohenheim Consensus Conference gathered the views of many academic experts in the field of nutritional research and asked these experts to address the various aspects of a claims substantiation process and the possibilities and limitations of the different approaches. Results The experts spent a day presenting and discussing their views and arrived at several consensus statements that can serve as guidance for bodies performing claims assessments in the framework of regulatory systems. Conclusion The 26th Hohenheim Consensus Conference addresses some general aspects and describes the current scientific status from the point of view of six case studies to illustrate specific areas of scientific interest: carotenoids and vitamin A in relation to age-related macular degeneration, the quality of carbohydrates (as expressed by the glycemic index) in relation to health and well-being, probiotics in relation to intestinal and immune functions, micronutrient intake and maintenance of normal body functions, and food components with antioxidative properties and health benefits
An Overview of Computational Modeling in Agricultural and Resource Economics
Nolan, J. ; Parker, D. ; Kooten, G.C. van; Berger, T. - \ 2009
Canadian Journal of Agricultural Economics 57 (2009)4. - ISSN 0008-3976 - p. 417 - 429.
land-use - management - systems
Overwintering and growing season dynamics of Trifolium repens L. in mixture with Lolium perenne L. : A model approach to plant-environment interactions
Wachendorf, M. ; Collins, R.P. ; Elgersma, A. ; Fothergill, M. ; Frankow-Lindberg, B.E. ; Ghesquiere, A. ; Guckert, A. ; Guinchard, M.P. ; Helgadottir, A. ; Lüscher, A. ; Nolan, T. ; Nykänen-Kurki, P. - \ 2001
Annals of Botany 88 (2001). - ISSN 0305-7364 - p. 683 - 702.
In attempting to increase the reliability of clover contribution in clover/ryegrass systems it is important to understand the roles of (1) specific traits of the clover genotype (2) climate and (3) their interactions in determining clover behaviour in swards. Overwintering and spring growth of white clover (cultivars AberHerald and Huia) grown in binary mixtures with perennial ryegrass were measured at 12 European sites ranging in latitude from Reykjavik, Iceland (64°30' N) to Pordenone, Italy (46°30' N). In the overwintering period, tiller density of the grass was assessed and detailed morphological and chemical measurements were made on the clover at each sampling time. During the growing season, the clover contribution to total available biomass was recorded. Detailed climatic data were available at all sites. The annual growth cycle of swards was divided into four functional periods (spring, summer, autumn and winter). Within each functional period community responses were modelled. The models incorporated independent biotic variables characterizing each community within each site at the start of the period and independent variables characterizing the climate at each site during the period. The models were linked dynamically by taking, as response variable(s) for a functional period, the independent biotic variable(s) of the succeeding period. In general, the modelling strategy was successful in producing a series of biologically meaningful linked models. Essential prerequisites for this were (a) the establishment of a well-devised common protocol prior to the experiment and (b) the extensive gradients of climatic and other variables obtained by using numerous sites. AberHerald generally performed as well as, or better than, Huia throughout the annual cycle across the range of climatic conditions encountered, and especially under low temperature conditions in winter and autumn. Clover leaf area index appeared to be a key variable in determining clover performance over winter and through the following growing season. Grass tiller density had a strong negative effect on clover content in spring but only at low temperatures. This emphasizes the importance of a high clover leaf area index in autumn as the main biotic factor related to spring clover content in milder conditions. The importance of climatic variables in the models is their use in explaining the reliability of the contribution of clover in clover/ryegrass systems. Temperature was the primary climatic determinant of clover response in all periods, having a direct effect on clover content and leaf area index or mediating the effect of the associate species. Radiation strongly influenced clover dynamics during winter and spring but not in the other periods, possibly because it was confounded with the effect of higher temperature. Precipitation was positively related to clover growth during spring and autumn and was related to tiller density in a complex manner during autumn and winter
Overwintering of Trifolium repens L. and succeeding growth : Results from a common protocol carried out at twelve European sites
Wachendorf, M. ; Collins, R.P. ; Connolly, J. ; Elgersma, A. ; Fothergill, M. ; Frankow-Lindberg, B.E. ; Ghesquiere, A. ; Guckert, A. ; Guinchard, M.P. ; Helgadottir, A. ; Lüscher, A. ; Nolan, T. - \ 2001
Annals of Botany 88 (2001). - ISSN 0305-7364 - p. 669 - 682.
A common experimental protocol was followed at 12 sites in Europe to study the development of two clover cultivars (AberHerald and Huia) grown in association with a ryegrass cultivar throughout their annual cycle. The duration of the experiment was between 1 and 3 years at each site. Detailed information about the morphogenesis and carbohydrate reserves of white clover during winter and the subsequent productivity of clover plants during the growing season was collected. Yield of the companion ryegrass was also measured at several harvests during the growing season and grass tiller density was recorded several times during winter. There was wide variation among sites and between years in climatic conditions, in the growth characteristics and chemical composition of the two cultivars, and in the tiller density of the ryegrass. The relative performance of the two cultivars varied among sites but AberHerald generally outperformed Huia. Major changes in plant characteristics (morphology, population size, chemical composition, etc.) occurred during overwintering. This paper presents a preliminary analysis of the effects of site, clover cultivar and sward age (years) on various plant characteristics. It is established that the data provide a unique basis for modelling the effects of a wide range of environmental conditions and plant properties on the performance of white clover in mixed swards. A modelling approach that seeks to replace site and year by climatic variables characterizing each site by year combination is developed in two companion papers.
UV-B and biosphere
Rozema, J. ; Gieskes, W.W.C. ; Geijn, S.C. van de; Nolan, C. ; Boois, H. de - \ 1997
Kluwer Academic Publishers (Advances in Vegetation Science 17) - ISBN 9780792344223 - 319 p.
Natural resource development and utilization - Future research and technology management in soil-plant-animal-human systems.
Jong, R. de; Nolan, T. ; Bruchem, J. van - \ 1992
Wageningen : Agricultural University - ISBN 9789067542449 - 168
milieu - milieubeheer - milieubescherming - voedingsmiddelen - bosbouw - bossen - brandhout - begrazing - berggraslanden - natuurlijke graslanden - natuurlijke hulpbronnen - pampa's - bescherming - kwaliteit - extensieve weiden - herstel - hulpbronnengebruik - hulpbronnen - sahel - semi-aride klimaatzones - bronnen - steppen - duurzaamheid (sustainability) - tropen - bomen als veevoer - environment - environmental management - environmental protection - foods - forestry - forests - fuelwood - grazing - mountain grasslands - natural grasslands - natural resources - pampas - protection - quality - rangelands - rehabilitation - resource utilization - resources - semiarid zones - sources - steppes - sustainability - tropics - fodder trees
Natural resource development and utilization. Proceedings of the CEC Coordination Workshop.
Jong, R. de; Nolan, T.V. ; Bruchem, J. van - \ 1992
Wageningen : Unknown Publisher - 168 p.
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