1. © 2004 Plano ISD, Plano, TX Introducing ECOLOGY

2. © 2004 Plano ISD, Plano, TX Today: You will explore the diverse relationships within an ecosystem. You will observe and analyze various ecosystems and identify living and nonliving components.

3. © 2004 Plano ISD, Plano, TX the study of the relationships between biotic and abiotic factors in environments eco (G) root home, abode ecoclimate ecosystem log, -o, y (G) suffix study of zoology epidemiology climatology Ecology Eco logy? What is

4. © 2004 Plano ISD, Plano, TX What is an Ecosystem? all the abiotic and biotic factors in one particular environment and the interactions between them all the abiotic and biotic factors in one particular environment and the interactions between them Biotic Factors the living parts of an ecosystem Abiotic Factors the nonliving parts of an ecosystem

5. © 2004 Plano ISD, Plano, TX Biotic Factors Bio bio(s), bio(t) (G) root life include plants, animals, fungi, microorganisms, anything living biology biostatistics biography biotechnology biosphere biotic

6. © 2004 Plano ISD, Plano, TX Examples of Biotic Factors

7. © 2004 Plano ISD, Plano, TX Abiotic Factors include air, water, soil, temperature, wind, source of energy (usually sun) A A a, an(G) prefix not, without atoxic amoral abiotic

8. © 2004 Plano ISD, Plano, TX Examples of Abiotic Factors

9. © 2004 Plano ISD, Plano, TX Examples of Ecosystems Arizona Desert Mountains in Colorado Coral Reef in Belize

10. © 2004 Plano ISD, Plano, TX do not necessarily have clear boundaries due to biotic and abiotic changes Ecosystems BioticBioticAbioticAbiotic migration, seed dispersal flood, erosion, drought can change daily as things move from one ecosystem to another

11. © 2004 Plano ISD, Plano, TX interact with each other in complex ways Biotic Interaction Factors also interact with abiotic factors in the ecosystem parasitism mutualism competition dependent upon water, minerals, temperature, light such as

12. © 2004 Plano ISD, Plano, TX

13. a major regional or global biotic community, a super ecosystem, defined chiefly by the dominant forms of plant life and the prevailing climate What is a Biome?

14. © 2004 Plano ISD, Plano, TX desertdesert grasslandgrassland tropical rain forest deciduous forest coniferous forest tundratundra Major Biomes of the World oceanocean

15. © 2004 Plano ISD, Plano, TX Levels of Organization smallest unit of living things group of similar cells organized to work together group of different kinds of tissues working together group of organs working together one individual living thing all organisms of the same kind living in one area all interacting populations in an ecosystem all living and nonliving things interacting within a certain area large region with typical plants and animals that includes several ecosystems cell

16. © 2004 Plano ISD, Plano, TX ECOSYSTEM CLIP BIOMES CLIP

17. © 2004 Plano ISD, Plano, TX McLaren, James E, and Rotundo, Lisa (1985). Heath Biology. D. C. Heath and Company. The American Heritage Dictionary of the English Language, Third Edition. (1992). Houghton Mifflin Company. Arms. (1996). Environmental Science. Orlando,Florida: Holt, Rinehart and Winston, Inc. Bibliography