Emergence of Evolutionary Thought

1
Emergence of Evolutionary Thought

• Starr/Taggarts
• Biology
• The Unity and Diversity of Life, 9e
• Chapter 17

2
Three Ways to Define Evolution

• Evolution
• Genetic change in a species over time.
• Genetic change in a line of descent brought about
  by microevolutionary processes .
• All the changes that have transformed life on
  earth from its earliest beginnings to the
  diversity of today.

3
Emergence of Evolutionary Thought

• Biogeography
• Stratigraphy
• Comparative Morphology
  Linnaeus Taxonomy
• Malthus Populations Lamarck Use and
  Disuse Cuvier Paleontology
  Hutton Gradualism Lyell
  Uniformitarianism
• Wallace, Darwin Evolution
  Mendels work rediscovered Modern
  Synthesis Theory/Neo-Darwinism
• Molecular Biology
• Gould, Eldridge Punctuated
  Equilibrium
• Evo-devo
• This awe inspiring lesson

1600 1650 1700 1750
1800 1850 1900 1950
2000
4
Macroevolution

• Large scale patterns, trends, and rates of
  change including
• origin of new designs (phenotypes)
• evolutionary trends
• adaptive radiation
• mass extinction

5
Adaptive Radiation
http//www.biology-online.org/images/darwin_finche
s.jpg