Ecosystems and Biomes 1.1 Ecosystems support life. 1.2 CHAPTER NEW CHAPTER Ecosystems and Biomes the BIG idea Matter and energy together support life within an environment. 1.1 Ecosystems support life. 1.2 Matter cycles through ecosystems. 1.3 Energy flows through ecosystems. 1.4 Biomes contain many ecosystems. CHAPTER OUTLINE

Ecosystems support life. 1.1 Ecosystems support life. Ecosystems are made up of living things (biotic) and nonliving things (abiotic). ecology ecosystem plants animals Biotic biotic factor abiotic factor Abiotic temperature Sun soil water SECTION OUTLINE

Matter cycles through ecosystems. 1.2 Matter cycles through ecosystems. Water, carbon, and nitrogen are materials that are necessary for life. They move through ecosystems in continuous cycles. cycle water cycle carbon cycle nitrogen cycle click image to enlarge Water Cycle Carbon Cycle Nitrogen Cycle SECTION OUTLINE

Energy flows through ecosystems. 1.3 Energy flows through ecosystems. Producers are the basis of feeding relationships in ecosystems. Producer cattails producer Primary Consumer caterpillar consumer decomposer food chain food web energy pyramid Secondary Consumer frog Tertiary consumer heron Food chains and food webs help show how energy moves through living things. SECTION OUTLINE

Biomes contain many ecosystems. 1.4 Biomes contain many ecosystems. Ecosystems of land biomes biome are affected by climate coniferous are affected by conditions of the soil deciduous are characterized by types of plants estuary Land Biomes click image to enlarge SECTION OUTLINE

Biomes contain many ecosystems. 1.4 Biomes contain many ecosystems. Ecosystems of water biomes biome can be freshwater or saltwater coniferous are affected by landscape if freshwater deciduous are affected by depth if marine estuary click image to enlarge Aquatic Biomes SECTION OUTLINE

1.1 Ecosystems support life. I. Ecosystems support life. ecology A. Living things depend on the environment. ecosystem B. Biotic factors interact with an ecosystem. biotic factor C. Many abiotic factors affect ecosystems. abiotic factor 1. Temperature 2. Light 3. Soil 4. Water KEY CONCEPT SUMMARY

1.2 Matter cycles through ecosystems. II. Matter cycles through ecosystems. cycle A. All ecosystems need certain materials. water cycle B. Water cycles through ecosystems. carbon cycle C. Carbon cycles through ecosystems. nitrogen cycle D. Nitrogen cycles through ecosystems. KEY CONCEPT SUMMARY

1.3 Energy flows through ecosystems. III. Energy flows through ecosystems. producer A. Living things capture and release energy. consumer 1. Producers decomposer 2. Consumers food chain 3. Decomposers food web B. Models help explain feeding relationships. energy pyramid 1. Food Chain 2. Food Web C. Available energy decreases as it moves through an ecosystem. KEY CONCEPT SUMMARY

1.4 Biomes contain many ecosystems. IV. Biomes contain many ecosystems. biome A. Regions of Earth are classified into biomes. coniferous 1. Taiga and Tundra deciduous 2. Desert and Grassland estuary 3. Temperate Forest and Tropical Forest B. Water covers most of Earth’s surface. 1. Freshwater Biomes 2. Marine Biomes KEY CONCEPT SUMMARY