wildlife part2 - breaking down the single story.part 2 2...

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Unformatted text preview: breaking down the single story...part 2 2) HUMANS ENDANGER NATURE • common target of this story is the pastoralist • key concept of “Carrying Capacity” example: pastoralism & “Carrying Capacity” • classic ecological concept used in environmental management • idea that fragile ecosystems are pushed out of equilibrium by too many people and cattle example: pastoralism & African ecology Scientific Research in the past 20 years (and centuries of African pastoralist activity) questions whether “Carrying capacity” works in Africa: • African arid & semi-arid areas demonstrate “non-equilibrium” ecology – erratic rainfall – frequent droughts, erratic productivity – resilient system – vegetation – impacted by density independent factors (climate) much more than density dependent factors (livestock grazing) example: pastoralism and African ecology Pastoralism increasingly recognized as a rational land use • transhumance – seasonal movement of cattle & people, a good response to climate • large herd – rational response to risks and opportunities of arid land ....so what? .......
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This note was uploaded on 10/16/2011 for the course GEOGRAPHY 331 taught by Professor Smith during the Spring '11 term at Rutgers.

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wildlife part2 - breaking down the single story.part 2 2...

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