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Spatial hyperdynamism in a post-disturbance simulated forest

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  • Wang, Qian
  • Malanson, George P.

Abstract

Competition–colonization models can address the population dynamics of remnants following habitat destruction. Spatially explicit versions have produced qualifications of the extinction debt issue and limited hyperdynamism in populations following habitat destruction. Although spatially explicit, these efforts examined few indicators of the spatial structure of the landscape. An existing model is modified here to represent a difference in niche adaptations as well as the competition–colonization tradeoff. Several landscape metrics are calculated at each iteration. Although the addition of niche differentiation did not change the qualitative outcome of the model, the spatial metrics show that some aspects of landscape structure, i.e., average patch area and proximity, become hyperdynamic and remain so. Small fluctuations in species populations are magnified in their spatial expression because the landscape is simplified.

Suggested Citation

  • Wang, Qian & Malanson, George P., 2008. "Spatial hyperdynamism in a post-disturbance simulated forest," Ecological Modelling, Elsevier, vol. 215(4), pages 337-344.
    • Handle: RePEc:eee:ecomod:v:215:y:2008:i:4:p:337-344
    DOI: 10.1016/j.ecolmodel.2008.04.002
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    References listed on IDEAS

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    1. Graniero, Phil A., 2007. "The influence of landscape heterogeneity and local habitat effects on the response to competitive pressures in metapopulations," Ecological Modelling, Elsevier, vol. 203(3), pages 349-362.
    2. Malanson, George P. & Wang, Qian & Kupfer, John A., 2007. "Ecological processes and spatial patterns before, during and after simulated deforestation," Ecological Modelling, Elsevier, vol. 202(3), pages 397-409.
    3. Hoyle, Martin, 2007. "When corridors work: Insights from a microecosystem," Ecological Modelling, Elsevier, vol. 202(3), pages 441-453.
    4. Vuilleumier, Séverine & Fontanillas, Pierre, 2007. "Landscape structure affects dispersal in the greater white-toothed shrew: Inference between genetic and simulated ecological distances," Ecological Modelling, Elsevier, vol. 201(3), pages 369-376.
    5. Echeverria, Cristian & Coomes, David A. & Hall, Myrna & Newton, Adrian C., 2008. "Spatially explicit models to analyze forest loss and fragmentation between 1976 and 2020 in southern Chile," Ecological Modelling, Elsevier, vol. 212(3), pages 439-449.
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