dr. ir. R.H.G. (Raymond) Klaassen


Research units:

  1. Home-ranges of tropical Red-capped Larks are influenced by breeding rather than vegetation, rainfall or invertebrate availability

    Mwangi, J., Klaassen, R. H. G., Muchai, M. & Tieleman, B. I., 11-Feb-2019, In : Ibis.

    Research output: Contribution to journalArticleAcademicpeer-review

  2. The relative importance of food abundance and weather on the growth of a sub-arctic shorebird chick

    Machin, P., Fernandez-Elipe, J. & Klaassen, R. H. G., Mar-2018, In : Behavioral Ecology and Sociobiology. 72, 3, 12 p., 42.

    Research output: Contribution to journalArticleAcademicpeer-review

  3. Conditions at the breeding grounds and migration strategy shape different moult patterns of two populations of Eurasian golden plover Pluvialis apricaria

    Machin, P., Remisiewicz, M., Fernandez-Elipe, J., Jukema, J. & Klaassen, R. H. G., Sep-2018, In : Journal of Avian Biology. 49, 9, 12 p., 01709.

    Research output: Contribution to journalArticleAcademicpeer-review

  4. Migration distance affects stopover use but not travel speed: Contrasting patterns between long- and short-distance migrating ospreys

    Monti, F., Gremillet, D., Sforzi, A., Dominici, J. M., Bagur, R. T., Navarro, A. M., Fusani, L., Klaassen, R. H. G., Alerstam, T. & Duriez, O., Oct-2018, In : Journal of Avian Biology. 49, 10, 14 p., e01839.

    Research output: Contribution to journalArticleAcademicpeer-review

  5. Analyse van kosten en baten van het Meerjarenprogramma Ontsnippering (MJPO)

    Sijtsma, F., van der Veen, E., van Hinsberg, A., Pouwels, R., Wymenga, E., Krijn, M., Klaassen, R., Mouissie, M., Grutters, M., van Dijk, R., Wackwitz, E. & Kisjes, K., Sep-2018

    Research output: Book/ReportReportProfessional

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  1. Data from: When and where does mortality occur in migratory birds? Direct evidence from long-term satellite tracking of raptors

    Klaassen, R. (Creator), Hake, M. (Creator), Strandberg, R. (Creator), Koks, B. J. (Creator), Trierweiler, C. (Creator), Exo, K. (Creator), Bairlein, F. (Creator), Alerstam, T. (Creator), University of Groningen, 20-Sep-2013


  2. Data from: How individual Montagu's Harriers cope with Moreau's Paradox during the Sahelian winter

    Schlaich, A. (Creator), Klaassen, R. (Creator), Bouten, W. (Creator), Bretagnolle, V. (Creator), Koks, B. J. (Creator), Villers, A. (Creator), Both, C. (Creator), University of Groningen, 29-Sep-2016


  3. Data from: A circannual perspective on daily and total flight distances in a long-distance migratory raptor, the Montagu's harrier, Circus pygargus

    Schlaich, A. (Creator), Bouten, W. (Creator), Bretagnolle, V. (Creator), Heldbjerg, H. (Creator), Klaassen, R. (Creator), Sørensen, I. H. (Creator), Villers, A. (Creator), Both, C. (Creator), University of Groningen, 25-May-2017


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  1. Diet and foraging ecology of Hen Harriers wintering in the Northern Netherlands

    Raymond Klaassen (Speaker)

    Activity: Talk or presentationAcademic

  2. Insights from year-round GPS tracking of Hen Harriers breeding in Dutch farmland

    Raymond Klaassen (Speaker)

    Activity: Talk or presentationAcademic

  3. International Hen Harrier and Short-eared Owl meeting 2019

    Raymond Klaassen (Organiser)

    Activity: Participating in or organising an eventOrganising an eventAcademic

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Press / Media
  1. Geslaagde expertmeeting blauwe kiekendief en velduil

    Raymond Klaassen


    3 items of media coverage, 1 media contribution

    Press/Media: ResearchProfessional

  2. Media coverage of the national presentation of the 'Deltaplan Biodiversiteitsherstel'

    Raymond Klaassen & Han Olff


    14 items of media coverage

    Press/Media: Public Engagement ActivitiesPopular

  3. Insects

    Leo Beukeboom & Raymond Klaassen


    1 media contribution

    Press/Media: Expert CommentPopular

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