Extinction+-+Week+4+-+Lec+2

Extinction+-+Week+4+-+Lec+2 - Advice for reading scientific...

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Unformatted text preview: Advice for reading scientific papers 1. Is it a review paper or part of the primary literature? 2. What question(s) does the paper pose? 3. What kind of data is used? Does it fit the question? 4. Can you find a key figure or table? 5. Read the parts of the paper with different standards. 6. Use the black box method. WEEK FOUR Lecture Two 6 parts I. Who Survives? (also Who Dies?) II. The Bushy Hominin Tree III. Turnover Pulse (Periodicity Again) IV. Neanderthals V. Why Did Neanderthals Go Extinct? (in section, a discussion today, and a bit next time) &!9!5!*!/!$!5!*!0!/ 8FFL!6-!.FDUVSF!3-!1BSU!2! l8IP!4VSWJWFT z )BMTP!l8IP!%JFT z+ Last Time 3 trends with respect to what species survive mass extinction Noted that lazarus taxa may survive but at low numbers Looked at two examples that maybe have something interesting to say about who survives and what are some consequences of mass extinction The examples were crenarchaeal viruses and paleopolyploid angiosperms and both examples involve thinking about Diversity , Variation , Flexibility , Complexity , and Rates of Evolution Today We turn to the hominin record Diversity , Variation , Flexibility , Complexity , and Rates of Evolution are important So, Lets Review. The Significance of Paleopolyploidy in Angiosperms VI. C. A Brief History of the Earth Angiosperms = Flowering Plants ~ 140 - 132 mya Early Cretaceous Paleopolyploidy Arabidopsis thaliana thale cress or mouse-ear crass (in mustard family) K s synonymous substitution rate III. D. Novel Hypothesis III. D. Novel Hypothesis Whats the point? A bigger genome might have meant greater variation Leading to a quicker evolutionary rate and more flexible evolutionary response More complexity ? More diversification ? This is an example. Could it illustrate something more general or universal? Sulfolobus, a member of the Crenarcheota, a branch of the Archaea Grand Prismatic Pool, Yellowstone II. E. World Without Extinction Observation: Crenarchaeal Viruses Seem Diverse II. E. A World Without ExtinctionII....
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This note was uploaded on 11/20/2011 for the course SCIENCE 070:111 taught by Professor Romero during the Fall '09 term at Rutgers.

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Extinction+-+Week+4+-+Lec+2 - Advice for reading scientific...

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