32. Protected Areas

32. Protected Areas - ROLE OF PROTECTED AREAS IN SPECIES...

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ROLE OF PROTECTED AREAS IN SPECIES CONSERVATION
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Protection, Management, and Restoration Of the 3 major ways to provide habitat for wild species (protection, management, restoration), protecting natural areas is still the best safeguard against the threat of extinction by loss of habitat
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What is a “Protected Natural Area” A protected natural area is defined in the Convention on Biodiversity as: “a geographically defined area which is designated, regulated and managed to achieve specific conservation objectives.” Or alternatively, as defined by IUCN: "areas of land and/or sea especially dedicated to the protection and maintenance of biological diversity, and of natural and associated cultural resources, and managed through legal or other effective means.“
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Role of Protected Areas in Conservation Protected areas have two main roles Represent the biodiversity of a region, and Separate this biodiversity from processes that threaten its persistence, i.e. Maintain ecological integrity, such as ecosystem processes, and functionality Maintain species diversity and potential for evolutionary change
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History of Protected Areas In the US, protected areas were originally intended for purposes other than biodiversity protection (e.g., recreation, scenic beauty) Selection was opportunistic, not strategic Often occurred on unproductive lands with little competition for development Yosemite National Park
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Ecological Consequences Poor representation of biodiversity (ecosystems, species, genetic diversity) Not designed for preserving biological diversity over time, and often failed to retain initial diversity
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Protected Areas Where Are They? 9,869 sites larger than 1,000 ha (about 4 square miles), in 124 countries protecting a total of 6.3% of the earth's land surface
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HOW MUCH PROTECTION? There are many different levels of protection that can be afforded to natural areas The IUCN has provided the standard definitions of these levels of protection by establishing 6 categories
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: Strict Nature Reserve ( Protected area managed for biodiversity protection and scientific study) Definition: Area of land and/or sea possessing some outstanding or representative ecosystems, geological or physiological features and/or species, available only for scientific research and/or environmental monitoring. ALDABRA ISLAND
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32. Protected Areas - ROLE OF PROTECTED AREAS IN SPECIES...

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