La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Percentage canopy cover - using Landsat imagery to delineate habitat for Myanmar's endangered Eld's deer (Cervus eldi)
Auteurs :	K. Koy, Auteur ; W. J. McShea, Auteur ; P. Leimgruber, Auteur ; M. Aung, Auteur
Type de document :	Article
Dans :	Animal Conservation (8 AUG 2005)
Article en page(s) :	289-296
Résumé :	Percentage canopy cover data derived from Landsat Enhanced Thematic Mapper (ETM+) sensor data, validated with field measurements, provide a useful tool for delineating Myanmar's Eld's deer (Cervus eldi) habitat. The current extent and condition of remaining Eld's deer habitat is unknown, but the species prefers dry dipterocarp forest. This habitat type has widely varying canopy cover and cannot be accurately delineated with traditional remote sensing techniques. New maps based on estimates of percentage canopy cover represent the variability of dry dipterocarp forests more accurately than maps of strict classes of habitat. Over 500 field measurements of canopy cover were used to train Landsat ETM+ data that were analysed with regression-tree analysis. The resulting satellite-based estimates of canopy cover were compared with an independent set of field validation points (r = 0.539, P

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