Conservation Bio Main Points 9-24-07

Conservation Bio Main Points 9-24-07 - Conservation Bio...

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Conservation Bio Notes 9-24-07 Habitat loss and degradation o Loss: Habitat no longer available for a species o Degradation: Poor conditions leading to smaller populations, may lead to extinction if not remediated o Galapagos tortoises Goats were destroying nests, competed for food Tortoises brought into captivity, goats eradicated All old adults, at least 40 years old so no reproduction for that long Habitat was degraded but eventually improved o Prickly Pear Cactus Recovered to levels never seen before Habitat was improved o Many places in Old World tropics are experiencing an extreme amount of habitat loss o Much of the Midwestern united states lost habitat due to agriculture while the Appalachians and the Western areas have pretty good habitat still o Footprint: Land required to maintain 1 persons lifestyle o Biocapactiy: Available land per person available o US has a great ecological deficit o Cause of degradation Agriculture
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Extractive activities, harvesting
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This note was uploaded on 04/17/2008 for the course E&EB 115 taught by Professor Jeffreypowellmartawells during the Fall '07 term at Yale.

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Conservation Bio Main Points 9-24-07 - Conservation Bio...

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