Class 14a: Biogeography

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Class 14a Biogeography
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Biogeography

• What is the range of a species?
• Why does it have that range?
• So what?

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Evolutionary development

• Darwins theory of natural selection

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Migration or dispersal
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Extinction

• Environment may change faster than evolution

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Competition and cooperation
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Competition and cooperation
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Plant basics
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Plant adaptations

• Xerophytic adaptations for dry conditions

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Plant adaptations

• Hygrophytic adaptations for wet conditions

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Plant biogeography

• Succession and climax vegetation

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Plant biogeography

• Forests
• Woodlands
• Shrublands
• Grasslands

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Plant biogeography

• Deserts
• Tundra
• Wetlands
• Vertical zonation

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Plant biogeography

• Microclimates
• Riparian

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Animal basics

• Whats an animal?

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Animal adaptations physiology
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Animal adaptations behavior
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Animal biogeography
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Wallace Line

• Based on plate tectonics, ice ages
• Alfred Russel Wallace (1860s)