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EVIDENCE2010 - The Evidence for darwins dangerous ideas...

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The Evidence for darwin’s dangerous ideas FOUR PREMISES OF DARWIN'S THEORY OF EVOLUTION 1) More individuals are produced than can survive – consequently … 2) There is a struggle for existence, and because 3) Individuals vary in features that influence their survival and reproduction (no two individuals are exactly the same, and some will do better than others –i.e. natural selection), AND IF 4) Those features that favor some individuals over others are heritable, there will be EVOLUTION
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EVOLUTION = DESCENT WITH MODIFICATION 7 MAJOR LINES OF EVIDENCE 1) DIRECT OBSERVATION 2) COMPARATIVE ANATOMY 3) EMBRYOLOGY/DEVELOPMENT 4) BIOGEOGRAPHY 5) FOSSIL RECORD (PALEONTOLOGY) 6) CLASSIFICATION 7) COMPARATIVE GENOMICS
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I. DIRECT OBSERVATION a) industrial melanism (Peppered Moth) b) pesticide resistance (DDT) c) artificial selection Peppered Moth Biston betularia INDUSTRIAL MELANISM
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Spread of melanic forms 1870-1920
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In 1950, Bernard Kettlewell tested the pollution hypothesis and found strong support for the impact of moth color on susceptibility to bird predation. In 1958, the United Kingdom passed a clean air act.
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British moths Michigan moths The U.S. passed the Clean Air Act in 1963. Changes in air quality in southeastern Michigan 1964-1990
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1) the moths reproduce and more are produced than survive 2) They are subject to predation 3) they vary in color pattern and the different color patterns vary in their probability of survival, and 4) this variation is heritable 1) More individuals are produced than can survive – consequently … 2) There is a struggle for existence, and because 3) Individuals vary in features that influence their survival and reproduction (no two individuals are exactly the same, and some will do better than others –i.e. natural selection), AND IF 4) Those features that favor some individuals over others are heritable, there will be EVOLUTION Criticisms of the peppered moth evidence (Wells 2000) ? 1) Disputes daytime resting of moths on trunks. 2) Photos of the moths are “staged.” 3) Recovery patterns of the moths do not fit the “model ” in that the moths recover before the lichens. Wells, J. 2000. Icons of evolution: science or myth?: why much of what we teach about evolution is wrong. Regnery, Washington DC, 338p.
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Criticisms of the peppered moth evidence (Wells 2000) ?
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