Landscape Ecology

, Volume 24, Issue 5, pp 699–709

Landscape patterns from mathematical morphology on maps with contagion

  • Kurt Riitters
  • Peter Vogt
  • Pierre Soille
  • Christine Estreguil
Research Article

DOI: 10.1007/s10980-009-9344-x

Cite this article as:
Riitters, K., Vogt, P., Soille, P. et al. Landscape Ecol (2009) 24: 699. doi:10.1007/s10980-009-9344-x

Abstract

The perceived realism of simulated maps with contagion (spatial autocorrelation) has led to their use for comparing landscape pattern metrics and as habitat maps for modeling organism movement across landscapes. The objective of this study was to conduct a neutral model analysis of pattern metrics defined by morphological spatial pattern analysis (MSPA) on maps with contagion, with comparisons to phase transitions (abrupt changes) of patterns on simple random maps. Using MSPA, each focal class pixel on a neutral map was assigned to one of six pattern classes—core, edge, perforated, connector, branch, or islet—depending on MSPA rules for connectivity and edge width. As the density of the focal class (P) was increased on simple random maps, the proportions of pixels in different pattern classes exhibited two types of phase transitions at threshold densities (0.41 ≤ P ≤ 0.99) that were predicted by percolation theory after taking into account the MSPA rules for connectivity and edge width. While there was no evidence of phase transitions on maps with contagion, the general trends of pattern metrics in relation to P were similar to simple random maps. Using an index P for comparisons, the effect of increasing contagion was opposite that of increasing edge width.

Keywords

Pattern analysis Neutral model Percolation theory Phase transition Simulation Threshold 

Copyright information

© US Government 2009

Authors and Affiliations

  • Kurt Riitters
    • 1
  • Peter Vogt
    • 2
  • Pierre Soille
    • 3
  • Christine Estreguil
    • 2
  1. 1.US Department of Agriculture, Forest Service, Southern Research StationResearch Triangle ParkUSA
  2. 2.European Commission, Joint Research CentreInstitute for Environment and SustainabilityIspra (VA)Italy
  3. 3.European Commission, Joint Research CentreInstitute for the Protection and Security of the CitizenIspra (VA)Italy

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