1. Biomes and Energy Flow Ms. Wood

2. What is a biome? Biome- a group of ecosystems with similar climates and organisms Biome- a group of ecosystems with similar climates and organisms Ecosystem – All living and nonliving things that interact in an area Ecosystem – All living and nonliving things that interact in an area

3. Key Components of Biomes Biotic factors – living parts of ecosystems Biotic factors – living parts of ecosystems Abiotic factors – nonliving parts of ecosystems Abiotic factors – nonliving parts of ecosystems Common climate – temperature and rainfall mostly determine the biome Common climate – temperature and rainfall mostly determine the biome

4. Types of Biomes Terrestrial Biomes Terrestrial Biomes Tropical Rain Forest Tropical Rain Forest Temperate Rain Forest Temperate Rain Forest Desert Desert Prairie Prairie Savanna Savanna Deciduous Forest Deciduous Forest Boreal / Taiga Boreal / Taiga Tundra Tundra Freshwater Biomes Freshwater Biomes Ponds and lakes Ponds and lakes Rivers and streams Rivers and streams Marine Biomes Marine Biomes Estuaries Estuaries Intertidal Zone Intertidal Zone Nertic Zone Nertic Zone Surface Zone Surface Zone Deep Zone Deep Zone

5. Producers and Consumers Producer – an organism that makes its own food Producer – an organism that makes its own food Consumer – an organism that obtains energy by feeding on other organisms Consumer – an organism that obtains energy by feeding on other organisms

6. Decomposers and Keystone Species Decomposer -An organism that breaks down waste and dead organisms Decomposer -An organism that breaks down waste and dead organisms Keystone Species – A species that influences the survival of many others in an ecosystem Keystone Species – A species that influences the survival of many others in an ecosystem

7. Food Chain Series of events in which one organism eats another and obtains energy Series of events in which one organism eats another and obtains energy 1 possible path along which energy can move through the ecosystem 1 possible path along which energy can move through the ecosystem Most organisms are part of several food chains Most organisms are part of several food chains Draw an example food chain in your notes Draw an example food chain in your notes

8. Food Web Many overlapping food chains in an ecosystem Many overlapping food chains in an ecosystem More realistic way to view energy flow in an ecosystem More realistic way to view energy flow in an ecosystem

9. Energy Pyramid Diagram that shows the amount of energy that moves from one feeding level to another in a food web Diagram that shows the amount of energy that moves from one feeding level to another in a food web Most energy is at the producer level Most energy is at the producer level At each level, there is less energy than at the level below At each level, there is less energy than at the level below Only 10% of energy is transferred from 1 level to the next Only 10% of energy is transferred from 1 level to the next 90% of energy is used for life processes and heat 90% of energy is used for life processes and heat Draw an example energy pyramid in your notes Draw an example energy pyramid in your notes

10. Energy Pyramid Example