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How Do We Study and Understand Diversity
• Ecology and Genetics are the primary avenues• Ecology – study of interactions of organisms
with environment and with other organisms• Interactions – potential selective forces
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Tools of Ecology
• Physiology• Genetics (population genetics)• Statistics• Molecular Ecology
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Physiology – Ecology of the Individual
• What environmental factors limit where an organism live?
• How does it cope with change?• Should it’s physiology change with the
environment or remain constant?
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Range of ToleranceRange of Tolerance
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Population Ecology
• Population – group of individuals of the same species living within a given area– Change in population size– Population genetics• Variation• Persistence
– Intraspecific interactions• Competition• Sexual selection
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Community Ecology
• Community – two or more species living in a given area– Competition– Predation– Other symbiotic interactions
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Avoid Capture
Grouping behavior
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Ecosystem Ecology
• Ecosystem – the communities and the environmental conditions of a given area– Nutrient cycling– Energy Flow
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Food Web