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1. Review- Describe the three basic methods of ecological research 2. Apply Concepts- Give an example of an ecological phenomenon that could be studied.

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Presentation on theme: "1. Review- Describe the three basic methods of ecological research 2. Apply Concepts- Give an example of an ecological phenomenon that could be studied."— Presentation transcript:

1 1. Review- Describe the three basic methods of ecological research 2. Apply Concepts- Give an example of an ecological phenomenon that could be studied by modeling. Explain why modeling would be useful 3. Practice- Suppose you want to know if the water in a certain stream is safe to drink. Which ecological method(s) would you use in your investigation. Explain you reasoning and outline your procedure.

2 CH 3 THE BIOSPHERE 3.1 What is Ecology

3 Ecology  The study of living and nonliving parts of the environments AND how they affect organisms  The study of living and non living things and how they interact.

4 Biosphere  Includes all the organisms and the soil, water and air around them  The layer where living things are found- from the bottom of the ocean to the upper atmosphere  From about 8 km above Earth’s surface to as far as 11 km below the surface of the ocean.

5 Bio Dome  How do humans affect the biosphere.

6 Levels of Organization  Ecological studies may focus on levels of organization that include the following:  Individual organism.

7 Levels of Organization  Ecological studies may focus on levels of organization that include the following:  Population  A group of individuals that belong to the same species and live in the same area  Needed to define Type of individual Time Place.

8 Levels of Organization  Ecological studies may focus on levels of organization that include the following:  Community  Interacting populations at the same time and place.

9 Levels of Organization  Ecological studies may focus on levels of organization that include the following:  Ecosystem  The community and its environment (abiotic factors).

10 Levels of Organization  Ecological studies may focus on levels of organization that include the following:  Biome  A group of ecosystems that share similar climates and typical organisms.

11 Levels of Organization  Ecological studies may focus on levels of organization that include the following:  Biosphere  Our entire planet, with all its organisms and physical environments.

12 Biotic Factors  Any living part of the environment.

13 Abiotic Factors  Any nonliving part of the environment, such as:  Sunlight, heat, precipitation, humidity, wind or water currents, soil type, etc.

14 Biotic and Abiotic Factors Together  Difference between abiotic and biotic is not always clear  Pond muck contains both living and nonliving particles.

15 Ecological Methods  Observation  Questions may arise from what your observations  Experimentation  Used to test hypotheses  Modeling  Ecological events occur over long periods of time or over large distances that they are difficult to study directly.

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