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ECOLOGY. Honors Biology. What is Ecology?. Study of interactions between organisms and the living and nonliving components of the environment. Why is Ecology Important?. Human Population Thinning Ozone Layer Climate Change. LEVELS OF ORGANIZATION.
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ECOLOGY Honors Biology
What is Ecology? • Study of interactions between organisms and the living and nonliving components of the environment
Why is Ecology Important? • Human Population • Thinning Ozone Layer • Climate Change
LEVELS OF ORGANIZATION • Biosphere: all areas of Earth that support life • Ecosystems: living and non living aspects of a particular environment • Communities: living aspects of a particular environment • Populations: all members of the same species • Organism: single living things
KEY THEME IN ECOLOGY • Interdependence and Interactions
ORGANISMAL ECOLOGY • Ecology of organisms • Biotic Factors: living • Abiotic Factors: nonliving
RESPONSES TO ENVIRONMENT • Acclimation • Control of Internal Conditions • Conformers • Regulators • Escape: migration, dormancy • Resources and availability
What is a Niche? • Species way of life • Role it plays in environment • Fundamental Niche: • Range of conditions that it can potentially tolerate • Realized Niche: • Range of resources it actually uses • Generalized Niches: broad range; opossum • Specialized Niches: koala