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Download 34.1 The Biosphere is the Global Ecosystem
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34.1 Global Ecosystem Objectives • Describe the five levels of ecological study. • Explain how the patchiness of the biosphere creates different habitats. • Identify key abiotic factors. Vocabulary • • • • ecology biotic factor abiotic factor population • • • • community ecosystem biosphere habitat The Study of Ecology • ecology: the scientific study of the interactions among organisms and between organisms and their environments • helps make decisions Biotic factors Abiotic factors • Living • Nonliving • Other organisms • Physical and chemical conditions individual • Example: Grendelina the angler fish • Example: group of individuals of the same species in the same area population • Example: angler fish in the same area • All organisms in a particular area community • Ex.: all living things in the area • Abiotic and biotic factors in an area ecosystem • Ex.: living things, rocks, water, gases in the area • All of Earth’s ecosystems biosphere Patchiness • not uniform • due to differences in abiotic factors • creates habitats Key Abiotic Factors • • • • • • sunlight water temperature soil wind severe disturbances Homework • In your science notebook… – complete Concept Check 34.1, 1-3 only • The diagram should be colorful, neat, accurate, and generally lovely.
