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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    TanDEM-X elevation model data for canopy height and aboveground biomass retrieval in a tropical peat swamp forest
    Schlund, Michael ; Poncet, Felicitas von; Kuntz, Steffen ; Boehm, Hans Dieter Viktor ; Hoekman, Dirk H. ; Schmullius, Christiane - \ 2016
    International Journal of Remote Sensing 37 (2016)21. - ISSN 0143-1161 - p. 5021 - 5044.

    It was demonstrated in the past that radar data is useful to estimate aboveground biomass due to their interferometric capability. Therefore, the potential of a globally available TanDEM-X digital elevation model (DEM) was investigated for aboveground biomass estimation via canopy height models (CHMs) in a tropical peat swamp forest. However, CHMs based on X-band interferometers usually require external terrain models. High accurate terrain models are not available on global scale. Therefore, an approach exclusively based on TanDEM-X and the decrease of accuracy compared to an approach utilizing a high accurate terrain model is assessed. In addition, the potential of X-band interferometric heights in tropical forests needs to be evaluated. Therefore, two CHMs were derived from an intermediate TanDEM-X DEM (iDEM; as a precursor for WorldDEMTM) alone and in combination with lidar measurements used as terrain model. The analysis showed high accuracies (root mean square error [RMSE] = 5 m) for CHMs based on iDEM and reliable estimation of aboveground biomass. The iDEM CHM, exclusively based on TanDEM-X, achieved a poor R2 of 0.2, nonetheless resulted in a cross-validated RMSE of 54 t ha−1 (16%). The low R2 suggested that the X-band height alone was not sufficient to estimate an accurate CHM, and thus the need for external terrain models was confirmed. A CHM retrieved from the difference of iDEM and an accurate lidar terrain model achieved a considerably higher correlation with aboveground biomass (R2 = 0.68) and low cross-validated RMSE of 24.5 t ha−1 (7.5%). This was higher or comparable to other aboveground biomass estimations in tropical peat swamp forests. The potential of X-band interferometric heights for CHM and biomass estimation was thus confirmed in tropical forest in addition to existing knowledge in boreal forests.

    Sensory and consumer research update
    Keast, Russell ; Idem, Gie ; Thornton, Megan ; Bolhuis, Dieuwerke - \ 2015
    Food australia 67 (2015)6. - ISSN 1032-5298 - p. 32 - 33.
    Typologies of socio-ecological conditions; identifying relevant and valid patterns to support resilience building
    Sietz, D. ; Lüdeke, M. ; Walther, C. ; Kok, M. ; Janssen, P. - \ 2014
    Can I ask you a favour? – A Relational Model of Socio-Cultural Behaviour
    Mascarenhas, S. ; Prada, R. ; Paiva, A. ; Degens, D.M. ; Hofstede, G.J. - \ 2013
    In fear of abandonment : slum life, community leaders and politics in Recife, Brazil
    Koster, M. - \ 2009
    Wageningen University. Promotor(en): Th. Blom Hansen, co-promotor(en): Monique Nuijten; Pieter de Vries. - [S.l. : S.n. - ISBN 9789085852971 - 356
    sociologie - sociale antropologie - steden - stedelijke gebieden - armoede - economisch achtergestelden - buurten - sociale structuur - stedelijke samenleving - stedelijke bevolking - gemeenschappen - leiderschap - politiek - stadsontwikkeling - brazilië - latijns-amerika - sociology - social anthropology - towns - urban areas - poverty - economically disadvantaged - neighbourhoods - social structure - urban society - urban population - communities - leadership - politics - urban development - brazil - latin america
    This book sets out to contribute to the pursuit of ‘making nonpersons full human beings’
    (Boff & Boff:1987:8). It provides insights in the lives of residents of the slum of “Chão de
    Estrelas” in Recife, Brazil. I argue that slum dwellers should not be mystified and
    misrecognised as “the other”, as different from “normal” citizens, because of their
    marginalised position. I show that the slum is, in fact, an eminently knowable world.
    This book presents how slum dwellers, directed by local lideres comunitarios, community
    leaders, strive for material and intangible resources and engage in utopian projects. I
    argue that the needs and aspirations of these people, who are at constant risk of being
    ignored, disconnected, and abandoned, emerge from their yearnings for recognition and
    connectivity, and a fear of abandonment. To understand this life in the slum, I focus on
    the ways slum dwellers attempt to realise their needs and aspirations, modes of
    operating which I call “slum politics”.
    Chapter 1 defines slum politics as grounded in the needs and aspirations of those
    who live in the margins. Drawing on the work of Oscar Lewis (1959, 1965), it analyses
    how life in the slum, through stigmatisation and a long history of marginalisation, is
    reproduced in ways that are fundamentally different from middle- and upper-class
    people. This difference, expressed in particular needs and aspirations, is not generated
    because slum dwellers are a different kind of people, but because have they been
    structurally segregated in the dominant political and economic order. This chapter
    documents how these particular needs and aspirations, although not solely held by
    slum dwellers, are more emphatically and urgently present in their lives in the margins
    of the political and economic order, and have material, intangible and utopian
    dimensions. Material needs exist, for instance, for money, food, and employment.
    Intangible, or social, needs can be viewed in attempts to establish connections to all
    kinds of people and to gain prestige. Utopian aspirations find their expression in slum
    dwellers’ cravings for solidarity, a better environment, and a desire to be connected to
    the world instead of being ignored by it.
    This chapter coins the concept of slum politics as the ongoing and never finished
    endeavour of slum dwellers of creating connections and possibilities which break off all
    the time. Slum politics, driven by attempts to be connected to the political and economic
    order, centres on the notion of connectivity, the intricate face-to-face relations between
    persons which need to be constantly maintained, and a fear abandonment, which means
    being forsaken and excluded by everybody. It includes practices in the realms of family
    life, making a living, and dreaming about the future.
    Chapter 2 provides a portrait of community leadership. It shows how community
    leaders are the main facilitators of slum politics, as they articulate and consolidate needs
    and aspirations of their fellow slum dwellers, which they, being slum dwellers
    340
    themselves, know well. Community leaders distinguish themselves from other slum
    dwellers by their talent to establish and maintain myriad connections, both to other
    slum dwellers and people outside the slum. Through these connections they attempt to
    create access to resources, to gain prestige, and arrive at recognition of their needs and
    those of their fellow slum dwellers.
    Community leaders also need their connections in order to make a living. They
    engage in the realm of electoral politics, looking for resources and prestige. Yet, their
    practices inevitably implicate them in particular tensions between opposing dimensions.
    They are confronted with the diverging expectations of fellow slum dwellers. This
    results in tensions of love for the community versus self-interest, and between the
    expectation that community leaders derive prestige and resources through electoral
    politics and the accusation that they are contaminated by electoral political interests.
    Slum dwellers are attracted by electoral politics’ image of opulence and possibilities
    beyond compare. Meanwhile, they distrust involvement in it, as it seemingly
    marginalises community issues in favour of assuming and maintaining public positions
    and making money.
    Chapter 3 introduces the community leaders Ovídio, Creuza, and Zezinho, their
    personalities, their projects, their operational styles, and their competition. It pays
    attention to how they articulate and consolidate needs and aspirations of their fellow
    slum dwellers, and operate between the tensions introduced in chapter 2. Each leader’s
    trajectory towards becoming a leader is presented, including their historical record of
    achievements and their thematic interests, comprising issues in which they specialise,
    which allow them to establish connections with people around specific topics. Three
    case studies are presented, one on each community leader, closely examining how they
    give shape to slum politics in their projects.
    Chapter 4 discusses how ordinary life in the slum is lived, through narrating
    histories of how four families in the slum organise their lives. These stories shed light on
    the way the economy is lived in a site where unemployment is high, self-employment
    often the only way to make a living, and allowances form a great part of the money
    coming in. I show a particular economic dynamic, where much of the money remains
    circulating within the slum, with a specific gendered labour division, an emphasis on
    connections, gift-giving, and a social use of money.
    In Chapter 5, I analyse how slum politics is intertwined with, but different from,
    electoral and themselves, know well. Community leaders distinguish themselves from other slum
    dwellers by their talent to establish and maintain myriad connections, both to other
    slum dwellers and people outside the slum. Through these connections they attempt to
    create access to resources, to gain prestige, and arrive at recognition of their needs and
    those of their fellow slum dwellers.
    Community leaders also need their connections in order to make a living. They
    engage in the realm of electoral politics, looking for resources and prestige. Yet, their
    practices inevitably implicate them in particular tensions between opposing dimensions.
    They are confronted with the diverging expectations of fellow slum dwellers. This
    results in tensions of love for the community versus self-interest, and between the
    expectation that community leaders derive prestige and resources through electoral
    politics and the accusation that they are contaminated by electoral political interests.
    Slum dwellers are attracted by electoral politics’ image of opulence and possibilities
    beyond compare. Meanwhile, they distrust involvement in it, as it seemingly
    marginalises community issues in favour of assuming and maintaining public positions
    and making money.
    Chapter 3 introduces the community leaders Ovídio, Creuza, and Zezinho, their
    personalities, their projects, their operational styles, and their competition. It pays
    attention to how they articulate and consolidate needs and aspirations of their fellow
    slum dwellers, and operate between the tensions introduced in chapter 2. Each leader’s
    trajectory towards becoming a leader is presented, including their historical record of
    achievements and their thematic interests, comprising issues in which they specialise,
    which allow them to establish connections with people around specific topics. Three
    case studies are presented, one on each community leader, closely examining how they
    give shape to slum politics in their projects.
    Chapter 4 discusses how ordinary life in the slum is lived, through narrating
    histories of how four families in the slum organise their lives. These stories shed light on
    the way the economy is lived in a site where unemployment is high, self-employment
    often the only way to make a living, and allowances form a great part of the money
    coming in. I show a particular economic dynamic, where much of the money remains
    circulating within the slum, with a specific gendered labour division, an emphasis on
    connections, gift-giving, and a social use of money.
    In Chapter 5, I analyse how slum politics is intertwined with, but different from,
    electoral and governmental politics. I follow Partha Chatterjee’s theorising on popular
    politics, conceptualised as those ‘contrary mobilisations’ that may have ‘transformative
    effects … among the supposedly unenlightened sections of the population’ (2004:49).
    Chatterjee distinguishes the politics of marginalised people from the politics of the state
    apparatus and the government, and argues that the former should not be understood as
    “pre-political” and backward, but as a politics with its own parameters and logics,
    ‘different from that of the elite’ (idem:39). My reservation to Chatterjee’s theorisations is that he presents popular politics as a residual category, derived from governmental
    politics. I argue instead that slum politics is not primarily reactive to or derived from
    governmental politics, but co-exists with it as it is constituted in the needs and
    aspirations of slum dwellers.
    Chapter 6, zeroing in on the 2004 municipal elections, shows the overlap between
    slum politics and electoral politics. It documents how electoral politics penetrates into
    the slum and contaminates slum politics. Community leaders employ the moment of the
    elections to negotiate with candidates to garner resources for the community and
    themselves. However, electoral politics entails the possible risk of steering away from
    community interests into issues of self-interested yearnings for power and money. Two
    case studies show attempts of community leaders, as political canvassers, to manoeuvre
    in the realm of electoral politics in such ways as to also make money, cater to needs and
    aspirations of fellow slum dwellers, and steer clear of accusations of being selfinterested.
    Chapter 7 presents a case study of encounters between slum politics and
    governmental politics. Parts of Chão de Estrelas were planned to be regenerated by a
    large World Bank funded slum upgrading programme. I analyse the preamble of the
    programme, how it affected the population of the slum, and how community leaders
    dealt with it. With reference to Bruno Latour’s work, I argue that the ambiguity which
    existed around the programme actually called it into existence. I contend that a project
    creates a context in which it becomes real, through rumours and ‘little solidities’ (Latour
    1996:45), like meetings, surveys, maps, aerial photographs, offices, brochures, registers,
    maps, surveyors and their reports, and census stickers.
    I also argue that the programme affected slum dwellers in their most vulnerable
    places: their homes, neighbourhoods, and possibilities for work. As a consequence,
    feelings of despair, evoking fears of being ignored as a person with specific needs and
    aspirations, hit hard in the lives of slum dwellers.
    Chapter 8 analyses how life in the slum is framed by violence. Next to the symbolic
    and structural violence of discrimination, slum dwellers face acts of violence on a daily
    basis, like fights, assaults and shoot-outs, often related to drug trade. Community
    leaders and drug traders maintain a tacit balance by which they steer clear of contact
    with each other. Slum dwellers, I show, perceive of violence as extraordinary through
    acts of mentioning it, reflecting upon it, avoiding it, and expressing aspirations for a life
    without it. In contrast, they also see violence as normal, as it is an everyday life
    experience.
    Furthermore, this chapter argues that, whereas actual violence occurs at random,
    potential violence is structured and structuring. Dealing with potential violence, slum
    dwellers ban violence discursively from their personal lives by depicting it as related to
    ‘the other’ and ‘elsewhere’. In addition, they adhere to moral categories which define
    those who die from violence as evil, as such seeing their death as a good thing which rids the community of wrong-doers.
    Turning again to the intersection between slum politics and governmental politics,
    the chapter argues that the concept of citizenship does not resonate with the lives of
    slum dwellers who reside in sites where citizenship rights per definition do not hold.
    Part of the violence slum dwellers face is related to the intrusive workings of the statedesigned
    project of registered citizenship, which centres on the compulsory carrying of
    identity cards. Slum dwellers, instead of being recognised as citizens through their
    identity cards, are discriminated and approached in violent ways by the police who
    consider them as criminals.
    Chapter 9, as a conclusion, argues once more against the mystification and
    “othering” of slum dwellers, and distances them from the philosopher Giorgio
    Agamben’s notion of homo sacer (1998, 2005). Slum dwellers do not coincide with homo
    sacer, as they are not officially abandoned by law and maintain personal connections
    with people outside the slum. Further, the dominant image of the slum dweller as a
    dangerous criminal separates him from homo sacer, who is harmless. Moreover, slum
    politics assigns a political quality to life in the slum, which makes it a politically
    qualified life (bios) instead of the bare life (zoē) of homo sacer. Slum dwellers’ position in
    the political and economic order, although marginalised, is different from the position of
    homo sacer, who exists outside of the order. Finally, in contrast to homo sacer, slum
    dwellers are not a minority, but a fast growing social class which will soon exist of more
    than half of the world’s population. I incite anthropologists to study not only the general
    exclusionary workings of political systems, but also the mundane practices and utopian
    aspirations of people living in the margins, as an analysis of these may help to imagine
    novel political possibilities.
    Function and evolution of baculovirus photolyases
    Xu, F. ; Lampen, M.H. ; Bajek, M.I. ; Muñoz, D. ; Vlak, J.M. ; Eker, A.P.M. ; Oers, M.M. van - \ 2008
    In: Abstract Book of the 14th International Congress of Virology, Istanbul, Turkey, 8 - 15 August, 2008. - Istanbul : - p. 236 - 236.
    Marktgerichte wijnproductie in Nederland
    Verhees, F.J.H.M. ; Verhoeven, C. ; Beker, D. - \ 2008
    De Wijngaard 16 (2008)62. - p. 23 - 24.
    Critical Loads and present deposition thresholds of nitrogen and acidity and their exceedances at level II and level I monitoring plots in Europe
    Bleeker, A. ; Reinds, G.J. ; Vermeulen, A.T. ; Vries, W. de; Erisman, J.W. - \ 2004
    Petten : ECN (ECN rapport C--04-117) - 155 p.
    This report presents an assessment of site specific deposition estimates and critical load exceedances of sulphur and nitrogen for selected Intensive Monitoring plots based on input and output estimates and extrapolation to a European wide scale. Depositions for the individual monitoring plots were calculated by means of a high-resolution deposition model (IDEM) and the results were compared to measured depositions for selected Intensive Monitoring sites. Also for the European Level I sites deposition estimates were computed. Not only the deposition of sulphur and nitrogen compounds was determined, but also the deposition of base cations was calculated. For this an approach was used, mainly based on available measurement data from the Intensive Monitoring sites. This derived model was also used to extrapolate to the Level I sites and Intensive Monitoring sites without deposition measurements. Critical loads according to the effect-based and stand-still approach were calculated, as well as present deposition thresholds for both the Intensive Monitoring sites and the Level I sites. Using the deposition calculations and critical loads/present deposition thresholds, exceedances of these target loads were calculated and presented. The uncertainties involved in these calculations were evaluated and finally conclusions were drawn on the basis of the results of the different calculations.
    Boeren met ruimte voor water, landschap en natuur in Olst-Wezep : een quickscan naar meer mogelijkheden voor boeren om bedrijfsmatig rekening te houden met ruimte voor water(berging), landschap en natuur in het landinrichtingsproject Olst-Wesepe
    Corporaal, A. ; Schrijver, R.A.M. ; Stortelder, A.H.F. - \ 2002
    Wageningen : Alterra (Alterra-rapport 421) - 59
    natuurbescherming - agrarische bedrijfsvoering - landschapsbescherming - inkomsten uit het landbouwbedrijf - wateropslag - haalbaarheidsstudies - nederland - natuur - overijssel - salland - nature conservation - farm management - landscape conservation - farm income - water storage - feasibility studies - netherlands - nature - overijssel - salland
    In het landinrichtingsgebied Olst-Wesepe is de consequentie van het vigerende water- en natuurbeleid dat er een relatief groot oppervlak gronden aan de landbouw moet worden ont-trokken (aankoop) om zaken als ruimte voor waterberging, landschap en natuur te realiseren. De landinrichtingscommissie heeft ALTERRA opdracht gegeven te onderzoeken of er alternatieven zijn voor aankoop: kunnen die doelstellingen ook gerealiseerd worden door aanpassingen in de agrarische bedrijfsvoering voor te stellen, zodat meerboer(en) kunnen blijven, maar ook de beleidsdoelstellingen duurzaam gewaarborgd zijn. Het rapport doet verslag van onder-zoek naar 4 agrarische bedrijfstypen op hun merites zijn onderzocht, 1) marktconforme bedrijven, 2) bedrijven met relatief veel landschapselementen (L-bedrijven), 3) idem met veel ruimte voor water (W-bedrijven), en 4) met natuur (N-bedrijven). Conclusie op groen-blauw-doelstellingen gerichte bedrijven, vooral waar het accent kan komen te liggen op "innovatief omgaan met ruimte voor water" hebben zelfs beter perspectief. De doorgerekende alternatieve bedrijfsvormen realiseren alle een beter gezinsinkomen dan een overeenkomstig traditioneel bedrijf: zo heeft bijvoorbeeld een middelgroot watergericht bedrijf (30 ha) een minstens twee keer zo hoog gezinsinkomen. Alles overziend wordt aanbevolen om in dit gebied een concrete pilot te realiseren omdat hier erg veel kansen liggen in een erg positief ingestelde omgeving.
    Technisch ontwerp Natuurwaarde 1.0 en toepassing in Natuurverkenning 2
    Brink, B.J.E. ten; Hinsberg, A. van; Heer, M. de; Hoek, D.C.J. van der; Knegt, B. de; Knol, O.M. ; Ligtvoet, W. ; Reijnen, M.J.S.M. ; Rosenboom, R. - \ 2002
    Bilthoven : RIVM (RIVM rapport 408657007) - 189
    natuurlijke hulpbronnen - natuurbescherming - beleid - kwaliteit - taxatie - ecosystemen - biologische indicatoren - nederland - natuur - natural resources - nature conservation - policy - quality - valuation - ecosystems - biological indicators - netherlands - nature
    Dit rapport bevat het technisch ontwerp van de graadmeter Natuurwaarde en de realisatie ervan in het signaleringsdeel van de Tweede Nationale Natuurverkenning. Het is een nadere uitwerking van het globaal ontwerp dat beschreven is in het rapport Natuurgraadmeters voor de behoudoptiek van het RIVM, CBS en Alterra (Ten Brink et al., 2000). De directie van het RIVM en het Natuurplanbureau gaven de opdracht voor dit rapport. Dit rapport is tevens een achtergronddocument voor de Tweede Nationale Natuurverkenning. Het doel van dit rapport is een onderbouwing te geven van de vele keuzes die aan dit technisch ontwerp ten grondslag liggen en deze expliciet vast te leggen zodat de Natuurwaarde reproduceerbaar en verbeterbaar is. Het gaat om een eerste versie, de Natuurwaarde 1.0. Dit rapport is uitgevoerd met behulp van de inbreng van diverse PGO's, instituten en onderzoeksbureaus waaronder: Alterra, CBS, RIZA, RIKZ, FLORON, SOVON, Vlinderstichting, VZZ, RAVON, Nationaal Herbarium Nederland, Wageningen-UR, RIVO, OVB en STOWA. Dit rapport:Deelt Nederland in in 27 gebieden, zogenaamde natuurtypen per fysisch-geografische regio (NT/FGR), waarvoor begrenzing, referentie en abiotiek zijn gespecificeerd. Selecteert voor de 27 NT/FGR's in totaal 980 kenmerkende soorten aan de hand van 9 overwegingen, voor het bepalen van de natuurkwaliteit. Bepaalt voor de 27 NT/FGR's de ligging, het areaal, de natuurkwaliteit en de Natuurwaarde. Idem voor het gehele agrarische en natuurlijke gebied. Geeft de berekeningsmethodiek hiervoor weer;doet aanbevelingen voor op te nemen soorten, monitoring, modellering en referentie-onderzoek. De huidige kwaliteit voor natuurlijke gebieden bedraagt momenteel 44%, de natuurkwantiteit bedraagt 40% en de Natuurwaarde bedraagt 18%. De natuurkwaliteit voor agrarische gebieden bedraagt momenteel 36%, de natuurkwantiteit bedraagt 48 %, waardoor de Natuurwaarde op17% uitkomt. In 1950 bedroeg deze naar schatting 51%. De kwaliteit van het natuurtype open duin is het hoogst (55%), die van vennen het laagst (31%). De Natuurwaarde versie 1.0 moet gezien worden als een eerste schatting van de voorraad biodiversiteit of ecologisch kapitaal in Nederland. Hoewel de Natuurwaarde 1.0 naar verwachting een van de best onderbouwde nationale biodiversiteitschattingen ter wereld is, is op verschillende onderdelen verbetering gewenst. Evenzeer is een verbeterde aansluiting gewenst op het beleid zoals de indeling in gebieden en de vertaling van enkele beleidsdoelen in Natuurwaarde-termen. Dit is een proces van enige jaren. De Natuurwaarde zal stapsgewijs verder worden uitgebreid en verbeterd, in samenhang met de ontwikkeling van meetnetten, modellen, referenties en beleidsdoelen. Ook dient de huidige koppeling met het Biodiversiteitsverdrag te worden behouden. Met name bossen en de regionale en rijkswatersystemen vragen de nodige aandacht voor de keuze van kwaliteitsvariabelen en het specificeren van de referentiewaarden. Deze uitbreidingen zullen als nieuwe versies worden vastgesteld in geactualiseerde rapporten. De uitwerking van de andere natuurgraadmeters van het Milieu- en Natuurplanbureau (Soortgroep Trend Index, EHS-Doelrealisatie Graadmeter en de Rode Lijst Indicator) zullen op termijn de beoordeling van de natuur volgens verschillende invalshoeken mogelijk maken
    Changes in kinetic activity of GIT microflora following stimulation of cell-mediated immunity in weaner piglets
    Williams, B.A. ; Moon, H.K. ; Schrama, J.W. ; Bosch, M.W. ; Verstegen, M.W.A. ; Tamminga, S. - \ 2001
    In: Interactions in the microbial world : idem, Amsterdam 26-31 august 2001 / ISME-9 Amsterdam : ISME-9 - p. 117 - 117.
    Circadian rhythms in heat production and physical activity of group-housed sows fed dietary fermentable carbohydrates
    Rijnen, M.M.J.A. ; Verstegen, M.W.A. ; Heetkamp, M.J.W. ; Haaksma, J. ; Schrama, J.W. - \ 2001
    In: idem / Chwalibog, A., Jakobsen, K., Wageningen : Wageningen Pers - p. 109 - 112.
    Performance of Tor khudree in fed and non-fed tanks with different densities of bamboo substrate
    Keshavanath, P. ; Gangadhar, B. ; Rahmatullah, S.M. ; Dam, A.A. van; Beveridge, M.C.M. ; Verdegem, M.C.J. - \ 2001
    In: Aquaculture Florida : idem, Florida 2001 6-9 May / Aquaculture Halifax : Aquaculture - p. 415 - 415.
    Evaluation of three species polyculture of major Indian carps under the periphyton-based pond aquaculture systems
    Azim, M.E. ; Verdegem, M.C.J. - \ 2001
    In: Aquaculture Florida : Aquaculture Florida, Florida 2001 USA / idem Florida : - p. 1 - 33.
    Towards improved sustainability in ponds and recirculation systems
    Verdegem, M.C.J. ; Eding, E.H. ; Verreth, J.A.J. - \ 2001
    In: Proceedings of Int. workshop on aquaculture and environment : idem, Centre for Integr. Management of coastal zones / Cochin University of science and Technology Cochin india : Cochin University India - p. 101 - 113.
    Kleine zoogdieren betrouwbaarder en efficiënter inventariseren
    Bergers, P.J.M. ; Haye, M. La - \ 2000
    De Levende Natuur 101 (2000)2. - ISSN 0024-1520 - p. 52 - 58.
    kleine zoogdieren - muizen - inventarisaties - karteringen - vallen - vangmethoden - veldwerk - small mammals - mice - inventories - surveys - traps - trapping - field work
    Een vergelijking van de resultaten van drie inventarisatiemethoden om de aanwezigheid van kleine zoogdieren in een gebied vast te stellen: standaardmethode met Longworth inloopvallen en zes controles; IBN-methode, idem met vier controles; IBN+-methode, idem maar vallen overdag dicht
    The dose-response effect of fermented liquid wheat on growth performance and gastrointestinal health of weaned piglets
    Scholten, R.H.J. ; Schrama, J.W. ; Peet-Schwering, C.M.C. van der; Hartog, L.A. den; Vesseur, P.C. ; Leeuwen, P. van; Verstegen, M.W.A. - \ 2000
    In: 8th symposium on digestive physiology in pigs : idem, Uppsala Sweden 20 - 23 june 2000 / CABI publishing. - Uppsala Sweden : CABI, 2000 - p. 246 - 266.
    Effects of dietary fermentable carbohydrates on the development of the gastrointestinal tract in group-housed growing pigs
    Rijnen, M.M.J.A. ; Dekker, R.A. ; Bakker, G.C.M. ; Verstegen, M.W.A. ; Schrama, J.W. - \ 2000
    In: Symposium on difgestive physiology in pigs : idem, Uppsala Sweden 20 - 23 june 2000 / CABI Publishing Uppsala : CABI - p. 17 - 20.
    Haemocyte distribution after different methods of bacterial administration in black tiger shrimp (Penaeus monodon)
    Braak, C.B.T. van de; Botterblom, M.H.A. ; Knaap, W.P.W. van der - \ 2000
    In: Eighth Congress of the international Society of Developmental and Comparative Immunology : idem, Caims Australia 2000 Caims Australia : - p. S5 - S5.
    Selective breeding for stress in common carp (Cyprinus carpio) using androgenesis
    Tanck, M.W.T. ; Bovenhuis, H. ; Komen, J. - \ 2000
    In: Genetics in Aquaculture VII 15-22 july 2000 : idem, 2000 Townsville QLD Australia Townsville Australia :
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