Dispersal and habitat connectivity in complex heterogeneous landscapes: an analysis with a GIS-based random walk model

Authors

  • P. Schippers,

    1. Winand Staring Centre for Integrated Land, Soil and Water Research (SC-DLO), P.O. Box 125, NL-6700 AC Wageningen, The Netherlands
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    • 3

      Dept of Theoretical Production Ecology, Wageningen Agricultural Univ., P.O. Box 430, NL-6700 AK Wageningen. The Netherlands

  • J. Verboom,

    1. Winand Staring Centre for Integrated Land, Soil and Water Research (SC-DLO), P.O. Box 125, NL-6700 AC Wageningen, The Netherlands
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  • J. P. Knaapen,

    1. Inst. for Forestry and Nature Research (IBN-DLO), P.O. Box 23, NL-6700 AA Wageningen. The Netherlands
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  • R. C. van Apeldoorn

    1. Inst. for Forestry and Nature Research (IBN-DLO), P.O. Box 23, NL-6700 AA Wageningen. The Netherlands
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Abstract

A grid-based random walk model has been developed to simulate animal dispersal, taking landscape heterogeneity and linear barriers such as roads and rivers into account. The model can be used to estimate connectivity, and has been parameterized for the badger in the central Netherlands. The importance of key parameters was evaluated by means of sensitivity analysis. Results agree with field observations, and give interesting insight into the isolation or populations and potential populations. The model can be applied to obtain knowledge about dispersal processes in complex landscapes.

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