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|a Effects of Rapid Global Warming at the Paleocene-Eocene Boundary on Neotropical Vegetation |h [electronic resource]. |
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|i Alternate title: |a Science Magazine. |
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|a [S.l.] : |b American Association for the Advancement of Science, |c 2010. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Temperatures in tropical regions are estimated to have increased by 3° to 5°C, compared with
Late Paleocene values, during the Paleocene-Eocene Thermal Maximum (PETM, 56.3 million years
ago) event. We investigated the tropical forest response to this rapid warming by evaluating
the palynological record of three stratigraphic sections in eastern Colombia and western Venezuela.
We observed a rapid and distinct increase in plant diversity and origination rates, with a set of
new taxa, mostly angiosperms, added to the existing stock of low-diversity Paleocene flora. There is
no evidence for enhanced aridity in the northern Neotropics. The tropical rainforest was able
to persist under elevated temperatures and high levels of atmospheric carbon dioxide, in contrast
to speculations that tropical ecosystems were severely compromised by heat stress. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Humberto Carvajal-Ortiz. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15052565/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/05/25/65/00001/FI15052565_thm.jpg |