1. Ecology The study of the relationship between an organism and its’ environment is called Ecology

2. Quotes to Think About: We're in a giant car heading towards a brick wall and everyone's arguing over where they're going to sit. ~David Suzuki Because we don't think about future generations, they will never forget us. ~Henrik Tikkanen Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect. ~Chief Seattle, 1855

3. The components of our environment are broken down into 2 main subgroups: 1)Biotic Factors - factors in an environment created by the presence and roles of living things Examples: vegetation, predators, prey

4. 2)Abiotic Factors - factors in the environment created by non-living things Examples: sunlight, temperature, landscape, minerals, moisture, air

5. The study of the relationship between all of the BIOTIC and ABIOTIC factors in the environment is known as: ECOLOGY ECOSYSTEM – is an area or region in which specific biotic and abiotic factors are linked and related

6. What can be considered an ecosystem? All of the following can be classified as ecosystems. Google Earth Demo What changes? Earth North America Ontario Cootes Paradise Rotting log http://maps.google.com/maps?ll=37.062491,- 95.677076&spn=66.711008,158.027344&t=f&z=3&ecpo se=37.06250381,-95.67706712,19119373.11,0,0,0

7. All ecosystems are found in the…

8. While Earth is huge, life is found in a very narrow layer, called the Biosphere. If the Earth could be shrunk to the size of an apple, the biosphere would be no thicker than the apple’s skin. Biosphere The biosphere, like the human body, is made up of systems that interact and are dependent on each other.

9. Our Biosphere  The biosphere is a relatively thin layer of Earth that has conditions suitable for supporting life. It is composed of all living things and the physical environment that supports them.  The biosphere is made up of three interacting abiotic components: the atmosphere – the gaseous portion the lithosphere – the solid portion the hydrosphere – the liquid portion

10. The Biosphere

11.  The lithosphere is the solid portion of Earth, composed of rocks, minerals, and elements.  Composed of the crust (8 – 70 km thick) and the rigid upper mantle (25 km thick).  The lithosphere varies in thickness from 8 km under the oceans to 100 km under the mountains found on continents  The lithosphere is warmed mainly by the Sun ’ s energy and to a lesser degree, by the molten material in the mantle The Lithosphere

12. Lithosphere = Crust + Upper most Mantle

13. The Hydrosphere  The Hydrosphere is all the water on Earth, whether it is present as liquid, water vapour, or ice.  About 97% of the water is salt water, 3% is fresh water  The fresh water includes lakes, streams, snow and glaciers  Many organisms live in the water, but the vast majority of organisms found in the atmosphere or lithosphere need water to survive, so depend on the hydrosphere as well.

14. World’s Water Supply (Fresh and Saline)

15. The Atmosphere  The atmosphere rises over 500km from the surface of Earth, and is mainly composed of a mixture of different gases:  The main gases are: GasPercent of Atmosphere by Volume Nitrogen (N 2 )78.08% Oxygen (O 2 )20.95% Other Gases0.97%

16. Gases in the Atmosphere

17. Quick Lab: Natural vs. Artificial Complete the activity on page 20 to determine the differences between artificial and natural ecosystems that you may find in your community.

18. Home Fun : 1.Read page 59. a) Define invasive species. b) Answer #4 on page 60.