M324 bio 3115 universit dottawa university of ottawa

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Unformatted text preview: ology Natural versus anthropogenic rarity and extinction risk Natural rarity is relatively common (in any community, many species are naturally rare) Unfortunately, many species (e.g. top predators) that are naturally rare are also heavily impacted by human activities (habitat loss, exploitation). The result is that the already elevated extinction risk associated with “natural” rarity is compounded by the synergistic effects of anthropogenic risk factors. M3.25 BIO 3115 Université d’Ottawa / University of Ottawa The relative odds of extinction for the seven forms of rarity over the last 500 million years, with risk increasing from the bottom to top panels. Harnik P G et al. Proc. R. Soc. B doi:10.1098/rspb.2012.1902 BIO 3115 Université d’Ottawa / University of Ottawa ©2012 by The Royal Society M3 2009-2010.13 BIO 3115 Conservation Biology The relative odds of extinction for the seven forms of rarity over the last 500 million years, with risk increasing from the bottom to top panels. Harnik P G et al. Proc. R. Soc. B doi:10.1098/rspb.2012.1902 ©2012 by The Royal Society M3 2009-2010.14 BIO 3115 Conservation Biology M3 2009-2010.15...
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This document was uploaded on 03/11/2014 for the course BIO 3115 at University of Ottawa.

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