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Anatomy of a Biosphere Reserve

Unlike its national parks, which focus on historical and aesthetic features, Mexico's biosphere reserves were created purely to protect its last natural ecosystems. Recognition by UNESCO (United Nations Educational, Scientific and Cultural Organization) requires that the biosphere contain at least 10,000 hectares (about 39 sq. miles), at least one pristine area of biological diversity, and threatened or endangered endemic species.

Mexico pioneered the zoning system that allows some carefully managed tourism. The core area -- the heart of the reserve -- is limited to scientific research and is surrounded by a buffer zone that allows only conservation-related activity. On the periphery, a transition zone permits sustainable use of natural resources to benefit local communities, as CESiaK's tours do. Biosphere reserves allow original residents to remain; local people, in fact, are recruited to research, monitor, and manage the ecosystem while developing sustainable activities such as ecotourism.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.