Transcript Powerpoint from Day 1

Evolution = changes in the morphology or behavior of
species over time
Macroevolution = irreversible large scale
changes (e.g. speciation and extinction)
that occur over thousands of generations
Microevolution = reversible small scale changes
within populations
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Theatrum Insectorum (1634)
1st British insect book to include moths
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1766
First careful description of
Biston betularia
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1840 Distribution Map
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Manchester
London
1848 - Manchester, UK
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(1858-1911)
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By 1860
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By 1870
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By 1880
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By 1890
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By 1900
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By 1910
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By 1920
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By 1930
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By 1940
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By 1950
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Glasgow
Manchester
Frequency map of
Biston betularia
London
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1820
1852
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1843
1950s
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