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A Threat To Wildlife And Bio-Diversity

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Length: 2565 words (7.3 double-spaced pages)
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A Threat To Wildlife And Bio-Diversity


Thesis Statement: The acceleration and diversification of human induced disturbances upon natural ecosystems during the past decades has contributed to wildlife habitat fragmentation. The changes in land use have driven wildlife managers to reconsider the benefits previously attributed to the Edge Effects on wildlife diversity.

Habitat fragmentation has been recognized as a major threat to the survival of natural populations and to the functioning of ecosystems. The reduction of large continuous habitats to small and isolated remnants affects the abundance and species composition of various Taxa. Some possible factors contributing to this decline include changes in food and cover availability, microclimatic effect, evolution of predation, loss of genetic variation, and lack of recolonization following local extinctions. Ultimately, habitat loss and fragmentation are processes that isolate small populations, which have higher extinction rates that may lead to a reduction in biological diversity. The acceleration of the land acreage consum...


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...Company, N.Y.

Reese, K. P. and Ratti, J. T. (1988). Edge Effects: A concept under scrutiny.
Trans. N. Am. Wildl Nat. Res conf 53.127-136.

Rosenberg, D.K. and Noon, B.R. (1997). Biological corridors: Form, function and
efficacy. Bioscience, 47, 677.

Sauer, L. J. & Andropogon Associates. (1998). The once and future forest: A guide
to forest restoration strategies, Island Press, Washington.D.C. / Covelo. Calf.

Sharpe, G. W. and Hendee, C. (1992). Introduction to forest and renewable resources,
(6th ed.). Mc Graw Hill INC. N.Y.

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