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Presentation
Fractal Patterns of Coral Communities: Evidence from Remote Sensing (Arabian Gulf, Dubai, U.A.E.)
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
  • Samuel J. Purkis, Nova Southeastern University
  • Bernhard Riegl, Nova Southeastern University
  • Richard E. Dodge, (editor), Nova Southeastern University
Event Name/Location
Proceedings of 10th International Coral Reef Symposium, Okinawa, Japan
Document Type
Conference Proceeding
Publication Date
1-1-2006
Keywords
  • Coral,
  • Patchiness,
  • Spatial Anisotropy,
  • Scale-Invariance,
  • Fractal,
  • IKONOS,
  • ICRS10
Abstract

In this study, the spatial character of benthic communities is investigated in an Arabian Gulf shallow subtidal carbonate ramp setting, using IKONOS satellite imagery. The patchy distribution of three assemblages of live and dead corals on extensive (but also fragmented) hardground pavements was investigated using a variety of spatial statistics. It was found that the spatial expression of the benthic groups display characteristics that approximate to power-law distributions over several orders of magnitude to an extent that suggests fractal behaviour. Pronounced anisotropy was observed between the spatial patterns in the near-shore and off-shore region which is attributed to different mechanisms of patch formation controlled by the local hydrodynamic regime. The study area is know to be subjected to recurrent and cyclic thermal induced mass mortality events on a decadal time scale, inhibiting reef framework development and likely to be a controlling mechanism in the patchiness of the benthic communities.

Citation Information
Samuel J. Purkis, Bernhard Riegl and Richard E. Dodge. "Fractal Patterns of Coral Communities: Evidence from Remote Sensing (Arabian Gulf, Dubai, U.A.E.)" (2006)
Available at: http://works.bepress.com/richard-dodge/67/