4 22 notes - 4-22-09Maintaining BiodiversityChanges in...

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Unformatted text preview: 4-22-09Maintaining BiodiversityChanges in extinctions and diversity-number of individuals depended on births and deaths-more births than deaths, population increasesIncreased rural density leads to decreased forest. -this is because rural slash-and-burn framers cause most of Rural populations are expected to decline.-less than 50% live in rural areaSubstantial areas of agricultural land are likely to be abandoned, because the population growth rates of many developing nations are slowing and because of increasing urbanization.This could enable significant forest regeneration, which could help buffer species losses from deforestation.Human Vs. Natural disturbances.-forest fire, pollution, nuclear bomb,-it would take a long time to recover from human disturbancesTerrestrial biodiversity hotspots-16 hotspots that sustain tropical forest have already lost, on average 90% of their forest cover....
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This note was uploaded on 06/16/2009 for the course BIO 53665 taught by Professor Iverson during the Spring '07 term at University of Texas at Austin.

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4 22 notes - 4-22-09Maintaining BiodiversityChanges in...

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