Food Webs & Energy Flow Names: ____________________________________________________________ Per: _____ 1) Select a biome - the more productive/diverse the better! Selected biome: ______________________ 2) Identify 15 (or more) species of plants and animals that live in your selected biome 3) Create a food web for your ecosystem. Your food web should include: ❏ Arrows showing the direction of energy flow (i.e. prey → predator) ❏ Circles ⃝ around primary producers ❏ Boxes ⃞ around primary consumers ❏ Triangles ▵ around secondary consumers ❏ Exclamation points !!! around tertiary consumers (or higher) ➔ NOTE: some species might fit into multiple categories! Get a check here from Mr. Sherwood once you build your food web: __________ 4) ON THE BACK OF THIS PAGE: Look up the net primary productivity for your selected biome (on page 76 of the textbook) and calculate the energy transferred to each trophic level based on this value using the 10% rule. WORK AS A GROUP and SHOW YOUR WORK Food Webs & Energy Flow Names: ____________________________________________________________ Per: _____ 1) Select a biome - the more productive/diverse the better! Selected biome: ______________________ 2) Identify 15 (or more) species of plants and animals that live in your selected biome 3) Create a food web for your ecosystem. Your food web should include: ❏ Arrows showing the direction of energy flow (i.e. prey → predator) ❏ Circles ⃝ around primary producers ❏ Boxes ⃞ around primary consumers ❏ Triangles ▵ around secondary consumers ❏ Exclamation points !!! around tertiary consumers (or higher) ➔ NOTE: some species might fit into multiple categories! Get a check here from Mr. Sherwood once you build your food web: __________ 4) ON THE BACK OF THIS PAGE: Look up the net primary productivity for your selected biome (on page 76 of the textbook) and calculate the energy transferred to each trophic level based on this value using the 10% rule. WORK AS A GROUP and SHOW YOUR WORK Biome: __________________________ Net primary productivity: ___________________ g C/m2/year Energy transferred to primary consumers: ________________ g C/m2/year Energy transferred to secondary consumers: ________________ g C/m2/year Energy transferred to tertiary consumers: ________________ g C/m2/year What is the difference between gross and net primary productivity? Biome: __________________________ Net primary productivity: ___________________ g C/m2/year Energy transferred to primary consumers: ________________ g C/m2/year Energy transferred to secondary consumers: ________________ g C/m2/year Energy transferred to tertiary consumers: ________________ g C/m2/year What is the difference between gross and net primary productivity?
