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THEORIES OF EVOLUTIONRoma Nadeem
Nicola EarlDanielle Minnett
Stephen Jay Gould
• Died May 20, 2002 at age 61
• Paleontologist
• Evolutionary Biologist
• Professor at Harvard
• Intellectual Badass
Niles Eldredge
• Works at the American Museum of Natural History
• Went to Columbia University
• In 1972 he worked with Gould to develop the theory of Punctuated Equilibrium
Cladogenesis
The splitting a species into different breeds.
Phyletic Gradualism
• Slow steady divergence of species into breeds
• Slow genetic modification of a population over a long period of time
Punctuated Equilibrium
Evolutionary change happening in what seems to be short bursts according to fossil evidence
WATCH THIS!...or else. Hehe.
Stasis
Isolation
Strong Selection and Rapid Evolution
No Preservation
Reintroduction
Out Competition
Stasis
Key TermsCladogenesis
Phyletic Gradualism
Punctuated Equilibrium
The splitting a species into different breeds.
Slow steady divergence of species into breeds
Evolutionary change that happens in short bursts
Key TermsBreed
Species
Stasis
Isolation
A group within a species
A taxonomic group in which the members can reproduce
The stable state of a species, in which there is little change
The seclusion of a certain amount of a population
Bibliography
• "Evolution 101: The Big Issues." Understanding Evolution. N.p., n.d. Web. 30 May 2010. <http://evolution.berkeley.edu/evosite/evo101/VIIA1aHypotheses.shtml>.
• "Evolution 101: The Big Issues." Understanding Evolution. N.p., n.d. Web. 30 May 2010. <http://evolution.berkeley.edu/evosite/evo101/VIIA1bPunctuated.shtml>.
• "Niles Eldredge - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 30 May 2010. <http://en.wikipedia.org/wiki/Niles_Eldredge>.
• "Species, Speciation and the Environment (ActionBioscience)."ActionBioscience - promoting bioscience literacy. N.p., n.d. Web. 30 May 2010.
<http://www.actionbioscience.org/evolution/eldredge.html>.
• "Species, Speciation and the Environment (ActionBioscience)."ActionBioscience - promoting bioscience literacy. N.p., n.d. Web. 30 May 2010. <http://www.actionbioscience.org/evolution/eldredge.html>.
• "Species, Speciation and the Environment (ActionBioscience)."ActionBioscience - promoting bioscience literacy. N.p., n.d. Web. 30 May 2010. <http://www.actionbioscience.org/evolution/eldredge.html>.
• "Stephen Jay Gould - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 30 May 2010. <http://en.wikipedia.org/wiki/Step
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