Biodiversity has been increasing throughout geologic time

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• Biodiversity has been increasing throughout
  geologic time

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Vicariance the breaking up of a widespread
ancestral population by continental drift
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• Historical Biogeography (Chapter 24)
• Large-scale patterns
• Regional vs. local effects
• Climate change

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Quiz Wednesday, April 26Final Thursday,
May 11th, 8am
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Zoogeographic regions
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• Regional effects influence of the regional
  species pool on local species diversity
• Local effects influence of local habitat
  conditions on species diversity

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• Local processes
• competition
• predation
• random extinction
• habitat selection
• Regional processes
• evolution of new species
• immigration
• species-area relationships

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