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Recruitment and attrition of associated plants under a shading crop canopy: Model selection and calibration

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  • Stilma, Eveline S.C.
  • Keesman, Karel J.
  • van der Werf, Wopke

Abstract

Associated plant and animal diversity provides ecosystem services within crop production systems. The importance of the maintenance or restoration of diversity is therefore increasingly acknowledged. Here we study the population dynamics of associated annual plants (‘weeds’) during the growth of a crop in a season and introduce a minimal model to characterize the recruitment and attrition of the associated plants under the influence of shading by the crop. A mechanistically based, logistic, light interception model was parameterized with light interception measurements in two single crops (barley and rye) and in mixtures of these cereals with peas. Population dynamics data were collected for the annuals Papaver rhoeas, Centaurea cyanus, Chrysanthemum segetum, and Misopates orontium. A minimal population dynamics model was identified for each annual plant species, using system identification techniques as model selection and calibration.

Suggested Citation

  • Stilma, Eveline S.C. & Keesman, Karel J. & van der Werf, Wopke, 2009. "Recruitment and attrition of associated plants under a shading crop canopy: Model selection and calibration," Ecological Modelling, Elsevier, vol. 220(8), pages 1113-1125.
    • Handle: RePEc:eee:ecomod:v:220:y:2009:i:8:p:1113-1125
    DOI: 10.1016/j.ecolmodel.2009.01.015
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    References listed on IDEAS

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    1. Evers, Jochem B. & Vos, Jan & Fournier, Christian & Andrieu, Bruno & Chelle, Michaël & Struik, Paul C., 2007. "An architectural model of spring wheat: Evaluation of the effects of population density and shading on model parameterization and performance," Ecological Modelling, Elsevier, vol. 200(3), pages 308-320.
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