Lecture 33 life on earth 2 (1 per page)

Lecture 33 life on earth 2 (1 per page) - The history of...

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The history of life on earth, con1nued….
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Where we le8 off: asteroid impact ends the Mesozoic Era [email protected]://ontherocksgeoblog.wordpress.com/2013/03/01/mass-ex1nc1ons-deep-impact/
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Mass ex1nc1on followed by rapid evolu1onary radia1on in the early Cenozoic [email protected]://ontherocksgeoblog.wordpress.com/2013/03/01/mass-ex1nc1ons-deep-impact/
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Not all dinosaurs went ex1nct! [email protected]://evolu1on.berkeley.edu/evolibrary/ar1cle/evograms_06
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History of Cenozoic life Rapid adap1ve radia1on of flowering plants, insects, birds, and mammals Cenozoic climate change- causes and consequences for life on earth The rise of humans and their impacts on planetary ecosystems: the Anthropocene
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Cenozoic evolu1onary radia1ons Mammals radiate rapidly (~10my) into many ecological niches Angiosperms (flowering plants) diversify and spread to dominate plant communi1es A lineage of angiosperms evolves symbiosis with N- fixing bacteria housed in root nodules, increasing rates of biological N-fixa1on in ecosystems Diversifica1on of bees and [email protected]flies Coevolu1onary diversifica1on of herbivorous insects
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Adap1ve radia1on of mammals into many vacant niches 130 genera arose in only 10 my in early Cenozoic Niches filled include: [email protected]://
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Darwin’s “abominable mystery”: why did flowering plants radiate so fast?
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