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Conservation Plan for the Peel Watershed

出版	CPAWS Yukon Chapter, 2006
URL	http://books.google.com.hk/books?id=96DvjwEACAAJ&hl=&source=gbs_api

註釋CPAWS Goals for the Peel Watershed 1) Protect and conserve the globally important boreal wilderness of the Three Rivers and maintain the ecological integrity of the greater Peel watershed. [...] CPAWS helped found Y2Y in 1993 and continues to support it by promoting the shared vision (a day when "all natural and human communities in the Yellowstone to Yukon region co-exist in a healthy mountain ecosystem of clean air and water, abiding beauty, and abundant wildlife and wilderness") and by setting our work in the region in the context of the Initiative. [...] The Peel lies mainly in the traditional territories of the First Nation of Nacho Nyak Dun and Tetl'it Gwich'in First Nation; for generations they were sustained by the plants, fish and wildlife of the region as they traversed the valleys and mountains on a network of travel and trade routes. [...] The rationale for a coarse filter includes a) our very incomplete knowledge of the biota (the myriad species that live in an area) and thus the need for surrogates of biodiversity, and b) an acknowledgement of the impermanence of the living component of ecosystems-especially in times of rapid environmental change. [...] Cautious and generalised interpretations of the evidence and literature suggest that 30-40% of the habitats or ecosystems "within a planning region will need to be conserved in order to also conserve 80-90% of the species" occurring in that region.22 As if to underscore these points, a March 2006 report29 in the Proceedings of the National Academy of Sciences includes northern Canada and Alaska as.