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FPATDENS - Forest patch density Forest patch density is calculated as the number of forest patches
divided by 1 km grid cell reporting unit area in km2. A patch is
defined as adjacent forest pixels, including diagonals. An irregularly
shaped patch may be split into several patches by the grid cell
boundary, inaccurately increasing the metric value. A grid cell
with many small patches is representative of a highly fragmented
landscape. Fragmented forests provide habitat for edge species,
but are poor for interior species, and are unlikely to provide migration
corridors. |