ATH 351-01

*** SYLLABUS ***

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Evolution: theoretical basis of human origins

development of evolutionary theory

  • Linnaeus (18th cent)
    • taxonomic system
    • humans = homo sapiens
  • Cuvier (18th 19th cent)
    • paleontology (fossils)
    • caastrophism
  • Lyell (19th cent)
    • geology
    • great age of Earth
  • Lamarck (19th cent)
    • evolution of species
    • inheritance of acquired characteristics

Darwin

  • Voyage on HMS Beagle (1831-36)
    • observations, data collection
  • Theory of Evolution by means of Natural Selection
    • mechanism for evolution
    • On the Origin of SPecies (1859)
  • Alfred Russell Wallace
    • co-developed natural selection theory

Scientific Method

  • observations (empirical data)
    • similarities & differences
    • adaptive traits
  • hypothesis (relationships)
    • development
    • testing
    • rejection
  • theory building
    • multiple lines of evidence
      • developmental anatomy
      • morphology

natural selection

  • observations
    • population superfecundity but environmental limitation
    • population physical and behavioral variation
    • inheritance of variations – parent to offspring
  • inferences
    • differential adaptation & survival (reproductive fitness)
    • adaptive traits ore common in next gen
    • many generations = evolution of new species

evolutionary patterns

  • descent with variation
  • adaptive radiation
  • isolation
  • speciation
    • cladogenesis
    • anagenesis
  • extinction
  • conservatism
  • rates of evolutionary change
    • gradualism
    • punctuated equilibrium

evolutional trees

  • plesiomorphy
    • shared ancestral trait (mammalian pentadactyly)
  • synapomorphy
    • shared derived trait (primate opposable thumbs)
  • autapomorphy
    • unique derived trait (hominin pelvic structure)

Scientific revolution

  • naturalistic explanation for evolution
  • descent from common ancestor
    • unbroken line of organisms
  • population is unit of evolution
  • variation is essential to all populations
    • source of variation???
  • environmental changes drive evolution
  • creationism & anthropolcentrism rejected
  • evolutionary changes are not progressive

BATTERY DIED, TRANSFER NOTES FROM PAD

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