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Unit 2: ECOLOGY!!!!

Unit 2: ECOLOGY!!!!. Ecosystems: Everything is Connected. Dead leaf falls from a tree into a stream Bacteria and fungi start to eat the leaf Insects will start to physically break down the leaf Motion of stream will also break down the leaf Caddisflies will catch and eat the pieces.

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Unit 2: ECOLOGY!!!!

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  1. Unit 2: ECOLOGY!!!!

  2. Ecosystems: Everything is Connected • Dead leaf falls from a tree into a stream • Bacteria and fungi start to eat the leaf • Insects will start to physically break down the leaf • Motion of stream will also break down the leaf • Caddisflies will catch and eat the pieces

  3. Algae and river plants will also eat the leaf • Predator insects eat insects that ate the leaf • Birds will eat the predator insects • While nesting in trees, these birds excrete droppings that provide nutrients that can be used by the tree to form a new leaf.

  4. What is an Ecosystem? • Def: all the organisms living in an area together with their physical environment. • Examples • An Oak forest in NE Pennsylvania • A coral reef in the Pacific Ocean

  5. Coral Reef

  6. Oak Forest

  7. Vacant Lot

  8. Components of an Ecosystem • Biotic and Abiotic factors • Organisms • Populations • Communities

  9. Ecosytem Def: All the living and nonliving things in an area

  10. Biotic Factors • Biotic Factors: • The living parts & ONCE living parts of an ecosytems • Includes all the Plants and animals

  11. Biotic Factors • Include: • Dead Organisms • Dead parts of an organism • Leaves • An organism’s waste products

  12. Abiotic Factors • Def: The non-living parts of an ecosystem • Includes: • Air • Water • Rocks • Sand • Light • Temperature

  13. What’s in an Ecosystem? • All the living and nonliving things in an ecosystem • Examples: • Garden • Log

  14. Garden

  15. Log

  16. Rainforest • Rain • Tree Frog • Human Tourist • Spider Monkey • Soil • Moist Air • Rocks • Monkey Poop • Dead Toucan bird • Waterfall • Sunlight • Dead branch

  17. Rainforest • Rain • Tree Frog • Human Tourist • Spider Monkey • Soil • Moist Air • Rocks • Monkey Poop • Dead Toucan bird • Waterfall • Sunlight • Dead branch

  18. Desert • Sand • Cactus • Gila Monster • Mountain • Moonlight • Dead Rattlesnakes • Urine • Clouds • Temperature • Hair • Gravel

  19. Desert • Sand • Cactus • GilaMonster • Mountain • Moonlight • Dead Rattlesnakes • Urine • Clouds • Temperature • Hair • Gravel

  20. Activity • Pick two ecosystems to compare and contrast. • Find the similarities and differences between abiotic and biotic factors in your two ecosystems • Time: 4 minutes

  21. Drill Time! • Complete Homework #5 on page 11 • Independent, silent work • Time: 4 minutes

  22. Biodiversity

  23. Biodiversity • Def: The variety of living things in an ecosystem

  24. Types of Biodiversity High Biodiversity • An ecosystem that has a large variety of plants and animals • Think: Different Low Biodiversity • An ecosystem that has very few different plants and animals • Think: Same

  25. High or Low Biodiversity? • Over 1,00 species of insects live in just one kind of rainforest tree, and the rainforest contains over 250,000 different kinds of plants

  26. High or Low Biodiversity • Many plants and animals have difficulty surviving in the scorching heat of the desert

  27. High or Low Biodiversity • Wetlands support a wide variety of species. Plant life flourishes in the wetlands

  28. Drill Time • Complete Practice #6 and Homework #6 • Low volume group work • Time: 4 minutes

  29. Bill Nye the Science Guy • A short video (23 minutes) on biodiversity • Fill out video worksheet slip • Don’t forget your NAME!!

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