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The response of the woodpigeon (Columba palumbus) to relaxation of intraspecific competition: A hybrid modelling approach

Author

Listed:
  • O’Regan, Suzanne M.
  • Flynn, Denis
  • Kelly, Thomas C.
  • O’Callaghan, Michael J.A.
  • Pokrovskii, Alexei V.
  • Rachinskii, Dmitrii

Abstract

The recent rapid growth of the woodpigeon population in the British Isles is a cause for concern for environmental managers. It is unclear what has driven their increase in abundance. Using a mathematical model, we explored two possible mechanisms, reduced intraspecific competition for food and increased reproductive success. We developed an age-structured hybrid model consisting of a system of ordinary differential equations that describes density-dependent mortality and a discrete component, which represents the birth-pulse. We investigated equilibrium population dynamics using our model. The two hypotheses predict contrasting population age profiles at equilibrium. We adapted the model to examine the impacts of control measures. We showed that an annual shooting season that follows the period of density-dependent mortality is the most effective control strategy because it simultaneously removes adult and juvenile woodpigeons. The model is a first step towards understanding the processes that influence the dynamics of woodpigeon populations.

Suggested Citation

  • O’Regan, Suzanne M. & Flynn, Denis & Kelly, Thomas C. & O’Callaghan, Michael J.A. & Pokrovskii, Alexei V. & Rachinskii, Dmitrii, 2012. "The response of the woodpigeon (Columba palumbus) to relaxation of intraspecific competition: A hybrid modelling approach," Ecological Modelling, Elsevier, vol. 224(1), pages 54-64.
    • Handle: RePEc:eee:ecomod:v:224:y:2012:i:1:p:54-64
    DOI: 10.1016/j.ecolmodel.2011.10.018
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