Food Web in a Deciduous Forest Name ________________Bio Food chains and food webs show the flow of energy through an ecosystem. Food chains are linear depictions of energy flow, while food webs show the multiple interactions among the different types of organisms. A food chain is a “picture version” of the energy pyramid. Food webs are generally a more realistic portrayal of the energy flow in the system. After all, most organisms eat more than one type of food and can be eaten by more than one type of predator. Look at the food chain below and identify the following: Top predator, producer, primary consumer (herbivore), secondary consumer(carnivore or herbivore) Food chain Food Web ____________ ____________ ____________ ____________ CREATE A FOOD WEB Now that you have a understanding of food chains and food webs, lets see if you can create your own food web using the information below. This is a typical food web found in a temperate forest (where you live). NOTE THERE ARE NO HUMANS!!!!! Use the organism boxes on the next page and follow the directions below: First determine the trophic level (producer, primary consumer, secondary consumer, top predator) for each organism. Color the boxes of the producers green, primary consumers orange, secondary consumers blue and top predators purple. Now cut out the squares and arrange them so that you can make all the connections identified below. Glue these onto what is left of the page be sure to connect the trophic levels according to the relationships below. Make sure arrows go in the correct direction. 1 Food Web in a Deciduous Forest Songbirds Insects (and larvae) Owl Shrubs (berries or buds) Bear Cougar Rodent (mice) Fox Deer Name ________________Bio Birds (nonsongbird) Opossum Grasses (and seeds from grass) Berries Skunk Worms Trees (nut bearing or fruit bearing) Small trees (leaves and roots) HERE IS THE INFORMATION 1. Bears eat vegetation (bushes, berries, etc) and deer 2. Cougars eat deer 3. The owl and the fox eat songbirds 4. Songbirds eat a variety of seeds from grasses 5. Rodents eat grains (seeds of plants) 6. Insects eat a variety of plants (larvae) 7. Insects are eaten by skunks bird and opossums 8. Opossums also eat fruits 9. Skunks also eat berries, nuts (from trees), leaves and roots and a variety of fruits from bushes (raspberries, blueberries) or trees (apples, peaches). 10. Birds eat seeds and insects 2 Food Web in a Deciduous Forest Name ________________Bio PuT WEB HERE 3 Food Web in a Deciduous Forest Name ________________Bio Songbirds Insects (and Owl larvae) Birds (nonsongbird) Grasses (and seeds from grass) Trees (nut bearing or fruit bearing) Shrubs (berries or buds) Cougar Rodent (mice) Opossum Berries Small trees (leaves and roots) Bear Fox Deer Skunk Worms 4 Food Web in a Deciduous Forest Name ________________Bio Answers (worms not shown, additional producers put in). 5