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Use of object-oriented classification and fragmentation analysis (1985–2008) to identify important areas for conservation in Cockpit Country, Jamaica

Environmental Monitoring and Assessment volume 172, pages 391–406 (2011)Cite this article

Abstract

Forest fragmentation is one of the most important threats to global biodiversity, particularly in tropical developing countries. Identifying priority areas for conservation within these forests is essential to their effective management. However, this requires current, accurate environmental information that is often lacking in developing countries. The Cockpit Country, Jamaica, contains forests of international importance in terms of levels of endemism and overall diversity. These forests are under severe threat from the prospect of bauxite mining and other anthropogenic disturbances. In the absence of adequate, up-to-date ecological information, we used satellite remote sensing data and fragmentation analysis to identify interior forested areas that have experienced little or no change as priority conservation sites. We classified Landsat images from 1985, 1989, 1995, 2002, and 2008, using an object-oriented method, which allowed for the inclusion of roads. We conducted our fragmentation analysis using metrics to quantify changes in forest patch number, area, shape, and aggregation. Deforestation and fragmentation fluctuated within the 23-year period but were mostly confined to the periphery of the forest, close to roads and access trails. An area of core forest that remained intact over the period of study was identified within the largest forest patch, most of which was located within the boundaries of a forest reserve and included the last remaining patches of closed-broadleaf forest. These areas should be given highest priority for conservation, as they constitute important refuges for endemic or threatened biodiversity. Minimizing and controlling access will be important in maintaining this core.

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Affiliations

  1. Department of Life Sciences, University of the West Indies, 4 Anguilla Close, Mona, Kingston 7, Jamaica

    Minke E. Newman, Kurt P. McLaren & Byron S. Wilson

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  1. Minke E. Newman
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  2. Kurt P. McLaren
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  3. Byron S. Wilson
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Correspondence to Kurt P. McLaren.

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Newman, M.E., McLaren, K.P. & Wilson, B.S. Use of object-oriented classification and fragmentation analysis (1985–2008) to identify important areas for conservation in Cockpit Country, Jamaica. Environ Monit Assess 172, 391–406 (2011). https://doi.org/10.1007/s10661-010-1342-6

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  • DOI: https://doi.org/10.1007/s10661-010-1342-6

Keywords

  • Forest fragmentation
  • Tropical forest conservation
  • Object-oriented classification
  • Priority conservation areas