Forest fragmentation is a recent problem facing global ecology accompanying our new and more accurate understanding of how things in the ecological communities work, and the rising worldwide demand for land. “Forest fragmentation occurs when large, continuous forests are divided into smaller blocks by roads, agriculture, urbanization, or other development” (Rusak, 2002, p. 1).
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Governments have long thought that placing many green spots in cities, villages, around roads and near houses could help overcome the ecological loss resulting from removing forests for urbanization, but things turned to be not that simple. As large forests are divided into separate small patches due to different reasons (urbanization, agriculture, etc…), these patches become isolated and consequently unable to maintain the original habitat for several organisms as well as to perform the original ecological role. “Fragmentation is a complex phenomenon resulting from dynamic interactions between the natural landscape and society's ever-increasing demands on the land, creating a mosaic of natural and human-modified environments” (Tyrell, 2000).
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| (http://www.biol.canterbury.ac.nz/people/harding/photo%20gallery/forest_fragmentation.jpg) (http://www.youtube.com/v/WGWFh6vCd7I&) |
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