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Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
Ecosystems For Grades 4-6
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Ecosystems For Grades 4-6

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  • 1. Ecosystems What is an ecosystem? An ecosystem is a place where animals, plants, and non-living materials exist together. A Joe Fasen Enhanced Power Point Presentation
  • 2. Ecosystems If you could choose an ecosystem in which to live which one would you choose? Why? Let’s take a look at some ecosystems to help you decide….
  • 3. Mountain
  • 4. Tundra
  • 5. Temperate Forest
  • 6. Marine/Island
  • 7. Desert
  • 8. Tropical Dry Forest
  • 9. Cold Climate Forest
  • 10. Grassland
  • 11. Savannah
  • 12. Tropical Rainforest
  • 13. Ecosystems What interactions take place in an ecosystem? What goes on in an ecosystem?
  • 14. Predation • When one organism hunts and eats another. • The fox is the predator and the rabbit is the prey.
  • 15. Scavengers • Animals that feed on decaying or dead plants or animals.
  • 16. Producers • Green plants that use energy from the sun to produce food through process of photosynthesis.
  • 17. Consumers • Organisms that do not make their own food but eat other organisms.
  • 18. Carnivores • Animals that eat only MEAT.
  • 19. Herbivores • Animals that only eat PLANTS.
  • 20. Omnivores • Eat both plants and meat
  • 21. Decomposers • Consume wastes and dead organisms. – Examples: fungi, bacteria, earthworms
  • 22. Symbiosis • Specific interaction between two species over a long period of time “living together” Both species benefit One species benefits, the other is neither helped nor harmed. One species benefits, the other is harmed
  • 23. Succession • The gradual change of one community to another over time. • Succession happens in all communities.
  • 24. • Sometimes forests go through long periods of time without rain. A fire could start during one of these dry spells. What would happen then? (succession)
  • 25. • In the forest fire, many trees and animals will die. – Many animals will move away from the forest to a new location.
  • 26. • After the forest fire, the community will begin to rebuild: – Plants begin to grow – Animals come back to feed on the new plants.
  • 27. • Eventually, new trees will grow. – Small trees will grow at first, but after many years, larger trees such as spruce and fir may grow.
  • 28. • So, here is our example of succession: Forest fire occurs Small trees begin to grow Trees & animals die or relocate Plants begin to grow; animals return to feed on new plant growth Large trees grow; completing the forest

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