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A unified framework for modelling wildlife population dynamics

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Abstract

This paper proposes a unified framework for defining and fitting stochastic, discrete-time, discrete-stage population dynamics models. The biological system is described by a state–space model, where the true but unknown state of the population is modelled by a state process, and this is linked to survey data by an observation process. All sources of uncertainty in the inputs, including uncertainty about model specification, are readily incorporated. The paper shows how the state process can be represented as a generalization of the standard Leslie or Lefkovitch matrix. By dividing the state process into subprocesses, complex models can be constructed from manageable building blocks. The paper illustrates the approach with a model of the British Grey Seal metapopulation, using sequential importance sampling with kernel smoothing to fit the model.
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Original languageEnglish
Pages (from-to)19-34
Number of pages16
JournalAustralian and New Zealand Journal of Statistics
Volume47
Issue number1
DOIs
StatePublished - Mar 2005

    Research areas

  • auxiliary particle filter, ecology, Grey Seals, Halichoerus grypus, metapopulation, nonlinear stochastic matrix models, sequential importance sampling, wildlife, conservation and management, grey seals, state-space models, wildlife conservation and management

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