IR323-18-19-lecture

IR323-18-19-lecture - Global Environmental Politics...

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- Science Links: http://www.globalissues.org/issue/169/biodiversity http://www.gbif.org/ http://www.millenniumassessment.org/en/index.aspx http://www.cbd.int/ http://www.unep-wcmc.org/ Generally, historical patterns of extinction due to natural causes (mass extinction events & background extinction rates), but now Q re 1) Are extinction rates increasing above background rate? (estimates have current rate 1000-10,000x background rate, 10-30% of mammal/bird/amphibious species threatened & 90% of fisheries threatened) 2) Are extinction rates greater than nature’s ability to regenerate (if above is true, then yes) 3) Are extinction rates anthropogenic in origin? 1 Global Environmental Politics Biodiversity
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- Science (cont’d) Charts 1) Extinction (geological—marine species example) 2
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- Science (cont’d) Charts (cont’d) 1) Extinction rates (background v. now) 3
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- Science (cont’d) Charts (cont’d) 1) Living Planet Index (UNEP-WCMC) 4
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- Science (cont’d) Charts (cont’d) 1) Extinction & human population 5
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- Science (cont’d) Charts (cont’d) 1) Habitat & biodiversity loss 6
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- Science (cont’d) Charts (cont’d) 1) Biodiversity Hotspots 7
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