2. ECOLOGICAL PYRAMIDS  A diagram that shows relative amounts of energy or matter within each trophic level.  3 Types: –Energy Pyramid –Biomass Pyramid –Pyramid of Numbers

3. Energy Pyramid  At every trophic level energy is lost as heat or through life processes  Available energy decreases at each level  10% rule – each trophic level passes only about 10% of the energy of the one below it  Higher on food chain, more area needed to live.  This pyramid exists in every ecosystem. REMEMBER: About a 90% energy loss between trophic levels

4. ENERGY PYRAMID Life Processes & Heat Light and Chemical Energy Energy Life Processes & Heat Life Processes & Heat Energy Loss in Heat & Life Processes: Breathing, Walking, Cell activities…

7. Pyramid of Numbers Not all pyramids of #s look like this! Some have small base Like a tree ecosystem

9.  Energy Pyramid - Energy Flow in Ecosystem -Video for Kids by makemegenius.com – YouTube Energy Pyramid - Energy Flow in Ecosystem -Video for Kids by makemegenius.com – YouTube Energy Pyramid - Energy Flow in Ecosystem -Video for Kids by makemegenius.com – YouTube  Ecological Pyramids | Ecology and Environment | the virtual school - YouTube Ecological Pyramids | Ecology and Environment | the virtual school - YouTube Ecological Pyramids | Ecology and Environment | the virtual school - YouTube

10. Biomass Pyramids Displays the biomass (living tissue) at each trophic level.