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Distribution and Causes of Global Forest Fragmentation

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Type: Journal Article
Author: Wade, Timothy G.; Riitters, Kurt; Wickham, James; Jones, K. Bruce
Journal: Ecology and Society
Volume: 7
Date: 2003
URI: https://hdl.handle.net/10535/2530
Sector: Forestry
Region: South America
Subject(s): forestry
global commons
land tenure and use
Abstract: "Because human land uses tend to expand over time, forests that share a high proportion of their borders with anthropogenic uses are at higher risk of further degradation than forests that share a high proportion of their borders with non-forest, natural land cover (e.g., wetland). Using 1-km advanced very high resolution radiometer (AVHRR) satellite-based land cover, we present a method to separate forest fragmentation into natural and anthropogenic components, and report results for all inhabited continents summarized by World Wildlife Fund biomes. Globally, over half of the temperate broadleaf and mixed forest biome and nearly one quarter of the tropical rainforest biome have been fragmented or removed by humans, as opposed to only 4% of the boreal forest. Overall, Europe had the most human-caused fragmentation and South America the least. This method may allow for improved risk assessments and better targeting for protection and remediation by identifying areas with high amounts of human-caused fragmentation."

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