01:070:111 Lecture Notes - Lecture 9: Punctuated Equilibrium, Macroevolution, True Lemur
27 Mar 2018
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Document Summary
Taxonomy is a static process, evolution is a dynamic process. Landed in a place with limited or no predators fewer deaths diversification of lemurs. Many different kinds of environments in madagascar. Adaptive radiation is always cladogenesis, however, not cladogenesis is adaptive radiation. Species sorting is when some species survive and some do not. The unit of extinction is the species. We observe adaptive radiation and the disappearance of major groups. In new, abrupt changes and environments, success depends on: Eurytopic species- can survive a wide range of conditions, i. e temperature. Short generation time- reproduce quickly, might be a buffer to altered circumstances. Less discriminatory mate recognition system- more helpful when there are not a lot of choices. Less body size- lower metabolism, less dietary requirements. Geographically widespread- not just adapted to one location. Fewer things (solutions, wonders, resources, combinations, possibilities) Macroevolution- gradualism or series of punctuated events.
