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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    Evolutionary history of Polyneaoptera and its implications for our understanding of early winged insects.
    Wipfler, Benjamin ; Letsch, Harald ; Brandsen, Paul B. ; Simon, S. - \ 2019
    Proceedings of the National Academy of Sciences of the United States of America 116 (2019)8. - ISSN 0027-8424 - p. 3024 - 3029.
    Polyneoptera represents one of the major lineages of winged insects, comprising around 40,000 extant species in 10 traditional orders, including grasshoppers, roaches, and stoneflies. Many important aspects of polyneopteran evolution, such as their phylogenetic relationships, changes in their external appearance, their habitat preferences, and social behavior, are unresolved and are a major enigma in entomology. These ambiguities also have direct consequences for our understanding of the evolution of winged insects in general; for example, with respect to the ancestral habitats of adults and juveniles. We addressed these issues with a large-scale phylogenomic analysis and used the reconstructed phylogenetic relationships to trace the evolution of 112 characters associated with the external appearance and the lifestyle of winged insects. Our inferences suggest that the last common ancestors of Polyneoptera and of the winged insects were terrestrial throughout their lives, implying that wings did not evolve in an aquatic environment. The appearance of the first polyneopteran insect was mainly characterized by ancestral traits such as long segmented abdominal appendages and biting mouthparts held below the head capsule. This ancestor lived in association with the ground, which led to various specializations including hardened forewings and unique tarsal attachment structures. However, within Polyneoptera, several groups switched separately to a life on plants. In contrast to a previous hypothesis, we found that social behavior was not part of the polyneopteran ground plan. In other traits, such as the biting mouthparts, Polyneoptera shows a high degree of evolutionary conservatism unique among the major lineages of winged insects.
    Grenzen aan Governance: een analyse van Toezicht op Controle
    Bakker, H.C.M. de; Brandsen, T. ; Oude Vrielink, M. - \ 2007
    Bestuurskunde 16 (2007). - ISSN 0927-3387 - p. 63 - 74.
    landbouwbeleid - kwaliteitscontroles - overheidsbeleid - governance - agricultural policy - quality controls - government policy - governance
    Het begrip governance kan zowel op instrumentele als normatieve wijze worden ingevuld. Wij betogen dat in de huidige praktijk de invulling zelden of nooit voorbij het instrumentele gaat en dat het in feite meestal gaat om een variant van 'government'. Voorlopig lijkt hiermee de grens van governance bereikt. Dit artikel geeft uitleg aan de hand van de (beleids)praktijk van LNV, namelijk via het beleidsprogramma Toezicht op Controle
    Baggerprobleem koppelen aan inrichtingskansen
    Harmsen, J. ; Sonneveld, C. ; Brandsen, F. - \ 2002
    ArenA 8 (2002)6. - ISSN 1383-7974 - p. 8 - 9.
    bagger - slib - schoonmaken - recycling - afvalverwerking - afvalbeheer - ruimtelijke ordening - landinrichting - landgebruik - landgebruiksplanning - baggerspecie - bodemreiniging - bodemverontreiniging - milieu - waterbodem - Noord-Holland - Wieringermeer - dredgings - sludges - cleaning - waste treatment - waste management - physical planning - land development - land use - land use planning
    N.a.v. een studiedag over het omgaan met baggerspecie wordt de oplossing van de baggerspecieproblematiek alleen mogelijk geacht als het onderdeel wordt van de ruimtelijke ordening
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