Sustainable Ecosystems and Human Activity

1. Sustainable Ecosystems and Human Activity

2. Trouble for the Cricket Frog • Read “Trouble for the Cricket Frog” on page 21 • You and the person beside you will be assigned one of the questions and you will answer it on a large piece of poster paper

3. Questions • Why should humans be concerned about the decline in the number of cricket frogs? • How might a decline in the number of frogs affect other species in an ecosystem? Use the term “food chain” in your explanation. • What are the 3 main reasons cricket frogs are endangered. • What are some things you could do to avoid doing that might help cricket frogs survive?

5. Understanding ecosystems

6. The round goby is a fish about the size of your hand that lives at the bottom of rivers. It also happens to be a big threat to other fish. These grey, brown, and black fish are moving into Great Lakes tributaries such as the Thames and Grand rivers. These waters are home to a variety of aquatic life, including several endangered species

7. Life on Earth Habitats- the environment where an organism lives

8. Earth’s TWO Habitat Types Terrestrial Marine Found in water • Found on land

9. Examples of Terrestrial Habitats

10. Examples of Marine Habitats

11. What does a habitat need? • Food • Shelter • Others for Reproduction

12. What do they need in a habitat? • Robin • Perch • Grasshopper • Bear • Moose

13. Extreme Habitats • What organisms live in the following extreme terrestrial habitats and how are they adapted to living there?

14. Make your own habitat • Your task is to create a habitat for a real or made up organism. • Be creative in how you display your habitat • It should include: • What your organisms eats • Where your organism live

15. The Spheres of the Earth Atmosphere: the thin layer of gases that surrounds the earth

16. Atmosphere • The atmosphere contains gases such as: • Water vapour • Oxygen • Carbon Dioxide • All needed by living things • Acts like a giant blanket wrapped around the earth that keeps it from getting too hot or too cool • Blocks sun’s radiation

17. Lithosphere • Rocky outer shell of the Earth • Mountains, ocean floors, rest of earth’s solid landscape

18. Hydrosphere • The water on, above and below the Earth’s surface • Oceans, lakes, ice, clouds, ground water

19. The Biosphere • The zone in, on and around the Earth where life can exist • Atmosphere, lithosphere, hydrosphere

20. Biosphere 2 • artificial biosphere created to mimic many different biospheres here on earth

21. tour of biosphere 2 • http://www.ted.com/talks/jane_poynter_life_in_biosphere_2.html

22. Ecosystems • All the living organisms in an area and their non-living environment • All components are integrated- change in one component can affect other components

23. Living vs. Non-Living Living- Biotic Factor Non-Living- Abiotic Factor Includes non-living features Ex. Weather, rocks, water • Includes organisms, their waste, their homes and their remains • Ex. Fungi, beavers, insects, moose droppings, shrubs

24. Biotic vs. Abiotic • smart book quiz.notebook

25. Everything is related … • Biotic and abiotic factors affect one another, so any changes in biotic or abiotic factors can change an ecosystem • For example: a forest is cut down for houses, the trees that housed insects, birds and squirrels are no longer there- they now need to find another place to live • cane toads

26. Population or Community • Most ecosystems have many different types of species • Members of the same species living in the same ecosystem are called a population • All snapping turtles in a pond are a population • All populations of different organisms in an area form a community • In a pond there are turtles, frogs, fishes, mosquitoes, aquatic plants, algae, etc., that make up a community