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Who’s Who in the Ecosystem?

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Presentation on theme: "Who’s Who in the Ecosystem?"— Presentation transcript:

1 Who’s Who in the Ecosystem?
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2 Producers An autotrophic is an organism that produces its own food and serves as a source of food for other organisms in a food web. Converts raw energy from the sun to organic molecules and nutrients useful to themselves and other organisms Producers include green plants (grass and trees) which produce food through photosynthesis Algae and some bacteria are also producers Slide background image courtesy of R. Means ©Copyright all rights reserved

3 Consumers Are heterotrophic - cannot make their own food and must obtain energy by eating other organisms. Includes animals, bacteria, and fungus Herbivore - eats only plants (grasshopper) Carnivore - eats other animals (wolf) Omnivore - eats both plants and animals (black bear) Background photo slide courtesy of D.B. Means ©Copyright all rights reserved

4 Decomposers An organism, often a bacterium or fungus, that feeds on and breaks down dead plant or animal matter. Converts dead organisms and animal/plant waste into water and nutrients. Nutrients are returned to the soil and made available to the other organisms in the ecosystem. Background image: ©Copyright all rights reserved

5 Producer, Consumer, Decomposer Game
The next several slides will be of different organisms When each slide is displayed, hold up the card that corresponds to the appropriate role the organism plays in a food web ©Copyright all rights reserved

6 FOX https://upload.wikimedia.org/wikipedia/commons/d/d0/Fox_(PSF).png
Consumer Diet – omnivores - lizards, voles, rates, mice, rabbits, eggs, and plants Habitat: Usually found in mountain, grasslands, and dessert ©Copyright all rights reserved

7 MUSHROOMS Decomposer Decomposers get energy by breaking down the remains of plants and animals. Then the decomposer return nutrients from the bodies of dead organisms to the environment. ©Copyright all rights reserved

8 TIGER Consumer Tigers are carnivores and eat deer, wild pigs, water buffalo and antelope. Tigers are also known to hunt sloth bears, dogs, leopards, crocodiles and pythons as well as monkeys and hares. ©Copyright all rights reserved

9 DRAGON FLY Consumer Dragonflies mostly eat other flying insects, particularly midges and mosquitoes. They will also take butterflies, moths and smaller dragonflies. The larvae, which live in water, eat almost any living thing smaller than themselves. Larger dragonfly larvae sometimes eat small fish and amphibian larvae. ©Copyright all rights reserved

10 APPLE TREE Producer Autotroph - obtains energy from the sun and, using water that is pulled up through the roots and carbon dioxide from the air, converts that energy to food. ©Copyright all rights reserved

11 HAWK ©Copyright 2015- all rights reserved www.cpalms.org
Consumer Hawks have a varied diet: small mammals, reptiles, amphibians, other birds, invertebrates ©Copyright all rights reserved

12 BACTERIA Mainly Decomposer, but may also be producers During the process of decomposition, the decomposers provide food for themselves by extracting chemicals from the dead bodies or organic waste; using these to produce energy. The decomposers will then produce waste of their own. In turn, this will also decompose, eventually organic material is naturally recycled. Virtually nothing goes to waste in nature. When animals die and decompose, usually only the bones remain, but even these will decompose over a much longer period of time. ©Copyright all rights reserved

13 FLOWER Producer ©Copyright all rights reserved

14 FISH Consumer Diet depends on the fish - algae, plankton, marine plants, invertebrates, other fish ©Copyright all rights reserved

15 TURTLE http://www.freestockphotos.biz/stockphoto/16830
Consumer Diet depends on the species. Some eat plants, others are more omnivorous and eat insects and other small animals. ©Copyright all rights reserved

16 How does a food web differ from a food chain?
A food chain is the path of energy transfer. A food web is the feeding relationships among organisms in an ecosystem. The energy moves from producers to consumers. After explaining the difference between food chains and webs. Ask “ what is the result of removing a organism from the food web?” When an organism is removed the population size of organisms that it eat may increase, and the population size of organisms that eat it may decrease. This is a great PowerPoint that explain food webs and food chains ©Copyright all rights reserved

17 ©Copyright 2015- all rights reserved www.cpalms.org
Label the plant or animal as a producer, consumer, or decomposer. Then draw arrows to show how energy is transferred through the ecosystem. Ladybird Butterfly Mouse Rabbit Titmouse bird Print This Slide for students to complete during the guided practice. Have the students help you identify the producers and consumers and write on each blank. Then draw arrows to show how energy is transferred through the ecosystem. Arrows represent the flow of energy from the body of the consumed organism to the body of the consumer of that organism. Remember that producers transfer energy to the primary consumers in the food chain, next to the secondary consumers, then to the tertiary consumers, and lastly the decomposers recycle matter back into the soil. Grasshopper Fungi Plantain ©Copyright all rights reserved

18 ©Copyright 2015- all rights reserved www.cpalms.org
consumer consumer consumer consumer consumer consumer consumer consumer consumer consumer consumer This is the answer key to the student worksheet (slide 17) In case the slide is unclear all arrows connect back to the fungi (decomposers) consumer producer producer Fungi decomposer ©Copyright all rights reserved

19 ©Copyright 2015- all rights reserved www.cpalms.org
This is what the Chesapeake Bay food web should look like ©Copyright all rights reserved

20 ©Copyright 2015- all rights reserved www.cpalms.org
This is what the African food web should look like The Fungi, Bacteria, Termites, and Dung Beetles are the decomposers The Acacia and the grass are the producers And the rest of the organisms are consumers ©Copyright all rights reserved

21 ©Copyright 2015- all rights reserved www.cpalms.org
consumer Marine Food Web consumer consumer consumer consumer consumer consumer This is a sample of what the students food web should look like if they were assigned the Marine Food Web consumer producer consumer producer consumer consumer ©Copyright all rights reserved

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