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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    Records 1 - 18 / 18

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    Recreatietoervaart; 9 jaar later
    Goossen, C.M. ; Langers, F. - \ 2002
    Wageningen : Alterra (Alterra-rapport 627) - 96
    varen - zeilen - binnenwaterwegen - menselijk gedrag - vrijetijdsactiviteiten - recreatieactiviteiten - vragenlijsten - nederland - kennis - kust - maatschappijwetenschappen - recreatie - rivierengebied - waddengebied - watersport - Groningen - Friesland - Drenthe - Overijssel - Flevoland - Gelderland - Utrecht - Noord-Holland - Zuid-Holland - Zeeland - Brabant - Limburg - IJsselmeer - Waddenzee - Maas - Waal - Rijn - boating - sailing - inland waterways - human behaviour - leisure activities - recreational activities - questionnaires - netherlands - knowledge
    In het kader van het te voeren rijksbeleid aangaande de verdere ontwikkeling van de recreatietoervaart is het gewenst om meer inzicht te krijgen in het vaargedrag van toervaarders en de achterliggende motieven. Daartoe zijn gedurende de zomer van 2002onder 1454 toervaarders in elf watersportregio's interviews afgenomen. Afhankelijk van de aard van de regio zijn toerzeilers dan wel motorboottoervaarders ondervraagd. Behalve naar persoons- en bootkenmerken is onder meer gevraagd naar herkomst- en bestemmingsregio, dagroute en de totale toertocht, aspecten die op de routekeuze van invloed zijn, knelpunten in Nederland en bestedingen.
    Vogels en het Interprovinciaal Windpark Afsluitdijk; beoordeling effecten van het Nuon IPWA-alternatief
    Dirksen, S. ; Spaans, A.L. - \ 2002
    Culemborg : Bureau Waardenburg (Rapport 02-015) - 34 p.
    broedvogels - ecologie - fauna - ornithologie - watervogels - windmolenpark - Friesland - Noord-Holland - Afsluitdijk - Waddenzee - IJsselmeer
    Variation in growth in sandwich tern chicks Sterna sandvicensis and the consequences for pre- and post-fledging mortality
    Stienen, E.W.M. ; Brenninkmeijer, A. - \ 2002
    Ibis 144 (2002)4. - ISSN 0019-1019 - p. 567 - 576.
    fauna - ecologie - fauna - ornithologie - stern - zeevogels - Waddenzee - Griend
    Fitness consequences of variation in body mass growth and body condition were studied in a sandwich tern Sterna sandvicensis colony on Griend, Dutch Wadden Sea, during 1990-2000. Body mass increment during the linear growth phase predicted nestling survival probabilities accurately. Chicks growing less than 8 g per day had low survival probabilities until fledging, but within a range of 8-11 g per day growth only small effects on chick survival were observed. Effects of slow growth on survival becameobvious after about 10 days after hatching. Slow growing chicks reached a much lower fledging mass, whereas slow growth had only small effects on structural size at fledging. Body condition of the chicks was highly variable and had strong effects on survival until fledging. However, body condition during the nestling stage did not influence post-fledging survival. Body condition at fledging had no effects on post-fledging survival and did not affect final mass or body size. It is argued that low fledging mass can be overcome soon after fledging, as parents take their fledglings closer to the foraging areas, thereby avoiding high rates of kleptoparasitism by black-headed gulls Larus ridibundus.
    Foraging decisions of sandwich terns in the presence of kleptoparasitising gulls
    Stienen, E.W.M. ; Brenninkmeijer, A. - \ 2002
    The Auk : a quarterly journal of ornithology 119 (2002)2. - ISSN 0004-8038 - p. 473 - 486.
    fauna - ecologie - fauna - ornithologie - stern - zeevogels - Waddenzee - Griend
    Eiders Somateria mollissima scavenging behind a lugworm boat
    Leopold, M.F. - \ 2002
    Journal of Sea Research 47 (2002)1. - ISSN 1385-1101 - p. 75 - 82.
    fauna - aquatische ecologie - eidereend - fauna - ornithologie - watervogels - Waddenzee
    The eider is one of the most important molluscivorous birds in the Wadden Sea, where it feeds mainly on blue mussels Mytilus edulis and edible cockles Cerastoderma edule. These prey species are within reach of the birds at all times. Other potential prey of suitable size that are abundantly present, such as several polychaete worms, or the clam Mya arenaria, are taken to a much lesser extent, possibly because they live buried in the sediment and digging them out would take too much effort. Mya may pose another problem because they grow to sizes that prevent eiders from swallowing them. Large Mya also live too deep down in the sediment, but young (small) specimens should be available to eiders. Yet, even these have only rarely been found as prey in eiders in the Wadden Sea. However, diet studies in relation to food abundance have been few, and may have missed prey that do not leave large shell fragments (i.e. in faeces studies). This paper describes observations on eiders taking both Mya and polychaete worms. The eiders fed on these prey in a fashion reminiscent of gulls that scavenge behind fishing vessels: some eiders have learnt to follow professional worm-digging boats that supply a bycatch of molluscs (mainly Mya arenaria) and polychaete worms(mainly Arenicola marina and Nephtys hombergii). Mya and worms were also the main targets of the eiders that fed in a dense flock close to the boat's stern. Faeces found on the flats at low tide comprised mainly cockle shell fragments, a prey rarely taken by the eiders behind the boat. Faeces studies may thus give a highly biased impression of local eider diet.
    An analysis of mussel bed habitats in the Dutch Wadden Sea
    Brinkman, A.G. ; Dankers, N.M.J.A. ; Stralen, M. van - \ 2002
    Helgolander Marine Research 56 (2002)1. - ISSN 1438-387X - p. 59 - 75.
    fauna - aquatische ecologie - fauna - kust - mosselen - schelpdieren - Waddenzee
    A habitat suitability analysis for littoral mussel beds in the Dutch Wadden Sea was carried out. The analysis was based on the presence of mussel beds in the years 1960-1970, and a number of environmental characteristics: wave action, flow velocity, median grain size, emersion times and distance to a gully border. The habitat model describes mussel bed appearance quantitatively. It predicts the distribution of mussel beds quite well, as well as the distribution of spatfall in the years 1994 and 1996.From the analysis we found that wave action (maximum orbital velocity) was the main structuring factor. A low orbital velocity was preferred. Neither very low, nor maximum flow velocities were favourable for mussel beds. Very coarse sands or silty environments were not preferred. Sites close to the low water line showed lower mussel bed appearance; when emersion time was above 50% , hardly any mussel beds could be found. The habitat suitability analysis and the construction of a habitat suitability map was performed in the framework of the discussions on a further or reduced exploitation of the tidal flats in the Dutch Wadden Sea by cockle and mussel fishery activities.
    Recovery of intertidal mussel beds in the Waddensea: use of habitat maps in the management of the fishery
    Dankers, N.M.J.A. ; Brinkman, A.G. ; Meijboom, A. ; Dijkman, E.M. - \ 2001
    Hydrobiologia 465 (2001). - ISSN 0018-8158 - p. 21 - 30.
    fauna - aquatische ecologie - fauna - kust - mosselen - schelpdieren - visserij - Waddenzee
    In the Waddensea, musselbed distribution and abundance has decreased. Management is aiming at increase of area of beds. Fisheries have been regulated. Mussel beds are slowly recovering, and localities where recovery occurs can be predicted reasonably well. Active restoration of beds has not been necessary, as long as newly formed beds are protected from fisheries. Potential suitable sites should be protected from bottom-disturbing activities which might influence the substrate for spatfall such as cockle beds and tube-building polycheates.
    Diet (preferences) of common eiders Somateria mollissima
    Leopold, M.F. ; Kats, R.K.H. ; Ens, B.J. - \ 2001
    Wadden Sea Newsletter (2001)1. - ISSN 0922-7989 - p. 25 - 31.
    fauna - ecologie - eidereend - ornithologie - schelpdieren - watervogels - Waddenzee
    Bird migration processes and modelling: improving the Ecowasp shorebird module
    Ens, B.J. - \ 2001
    In: Modelling the impact of climate change on the Wadden Sea ecosystems / Brinkman, A.G., Ens, B.J., Kersting, K., Baptist, M., Vonk, M., Drent, J., Janssen-Stelder, B.M., van der Tol, M.W.M., Bilthoven : RIVM - p. 47 - 81.
    fauna - aquatische ecologie - klimaatverandering - ornithologie - simulatiemodel - trekvogels - wadvogels - Waddenzee
    Steady state in a Wadden Sea system: a first estimation of climate change effects
    Brinkman, A.G. - \ 2001
    In: Modelling the impact of climate change on the Wadden Sea ecosystems / Brinkman, A.G., Ens, B.J., Kersting, K., Baptist, M., Vonk, M., Drent, J., Janssen-Stelder, B.M., van der Tol, M.W.M., Bilthoven : RIVM - p. 17 - 36.
    fauna - aquatische ecologie - klimaatverandering - simulatiemodel - Waddenzee
    Overview of climate change scenario's [sic]
    Brinkman, A.G. - \ 2001
    In: Modelling the impact of climate change on the Wadden Sea ecosystems / Brinkman, A.G., Ens, B.J., Kersting, K., Baptist, M., Vonk, M., Drent, J., Janssen-Stelder, B.M., van der Tol, M.W.M., Bilthoven : RIVM - p. 9 - 16.
    klimaatverandering - meteorologie - scenariostudie - simulatiemodel - zeespiegelstijging - Waddenzee
    Integration by a dynamic ecosystem model: Ecoswasp
    Brinkman, A.G. - \ 2001
    In: Modelling the impact of climate change on the Wadden Sea ecosystems / Brinkman, A.G., Ens, B.J., Kersting, K., Baptist, M., Vonk, M., Drent, J., Janssen-Stelder, B.M., van der Tol, M.W.M., Bilthoven : RIVM - p. 153 - 186.
    aquatische ecologie - klimaatverandering - simulatiemodel - Waddenzee
    Deelstudie ornithologie MER interprovinciaal windpark Afsluitdijk; vogelgegevens ten behoeve van Vogelrichtlijnbeoordeling
    Dirksen, S. ; Spaans, A. ; Winden, J. van der - \ 2001
    Culemborg : Bureau Waardenburg (Rapport 01-074) - 17 p.
    broedvogels - ecologie - fauna - ornithologie - watervogels - windmolenpark - Friesland - Noord-Holland - Afsluitdijk - Waddenzee - IJsselmeer
    Deelstudie ornithologie MER interprovinciaal windpark Afsluitdijk; aanvullende rapportage: beoordeling effecten drie alternatieven uit ontwerpronde voorjaar 2001
    Dirksen, S. ; Spaans, A. ; Winden, J. van der - \ 2001
    Culemborg : Bureau Waardenburg (Rapport 01-059) - 32 p.
    broedvogels - ecologie - fauna - ornithologie - trekvogels - watervogels - windmolenpark - Friesland - Noord-Holland - Afsluitdijk - Waddenzee - IJsselmeer
    Over standplaats en plantensociologische positie van Trifolium ornithopodioides Oeder; speciaal aan de Waddenzeekust van Texel
    Hazebroek, E. ; Slim, P.A. ; Weeda, E.J. - \ 2001
    Stratiotes (2001)23. - ISSN 0928-2297 - p. 22 - 32.
    plantengemeenschappen - trifolium - biogeografie - noord-holland - nederlandse waddeneilanden - ecologie - plantensociologie - vegetatie - Waddenzee - Texel - plant communities - trifolium - biogeography - noord-holland - dutch wadden islands
    Nieuwe vindplaatsen van de Rode Lijst-soort vogelpootklaver
    Effecten van bodemdaling door gaswinning op de Peazemerlannen
    Eysink, W.D. ; Dijkema, K.S. ; Duin, W.E. van - \ 2000
    Unknown Publisher
    bodemdaling - ecologie - gaswinning - kwelder - vegetatie - wadvogels - Groningen - Friesland - Waddenzee
    Wetenschappelijke onzekerheden zijn onmisbaar in Wadden-discussie
    Ens, B.J. - \ 2000
    Bionieuws 10 (2000)19. - ISSN 0924-7734 - p. 2 - 2.
    schelpdiervisserij - Waddenzee
    EVA II: evaluating the Dutch policy of shellfish fishing in 2003
    Ens, B.J. ; Lanters, R. ; Smaal, A. - \ 2000
    Wadden Sea Newsletter (2000)2. - ISSN 0922-7989 - p. 22 - 24.
    schaal- en schelpdierenvisserij - nadelige gevolgen - ecologie - nederland - aquatische ecologie - beleidsevaluatie - fauna - kustwateren - schelpdiervisserij - watervogels - Waddenzee - shellfish fisheries - adverse effects - ecology - netherlands
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