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    Description

    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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    Citation

    Wade, Timothy G.; Riitters, Kurt H.; Wickham, James D.; Jones, K. Bruce. 2003. Distribution and Causes of Global Forest Fragmentation. Conservation Ecology 7(2): 7. [online] URL: http://www.consecol.org/vol7/iss2/art7/

    Keywords

    forest fragmentation, forest pattern, global, risk assessment, targeting

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https://www.fs.usda.gov/treesearch/pubs/5569