1. Professor: Felipe Martínez Samarripa

2. Origin of the word…”ecology” Greek origin OIKOS = household LOGOS = study of… Study of the “house/environment” in which we live.

3. Definition of “ecology” Ecology is the study of interactions between biotic and abiotic factors in an environment. Biotic factors a living things (plants, animals...), and abiotic factors are nonliving things (soil, sun,... http://wiki.answers.com/Q/What_is_ecology http://wiki.answers.com/Q/What_is_ecology Ecology is a branch of biology which is focused on the examination of living organisms in the natural environment. biology http://www.wisegeek.com/what-is-ecology.htm

4. Ecology is study of interactions between non-living components in the environment… light water wind nutrients in soil heat solar radiation atmosphere, etc. AND…

5. Living organisms… Plants Animals microorganisms in soil, etc.

6. To study Ecology involves… For non-living (abiotic) Climatology Hydrology Oceanography Physics Chemistry Geology soil analysis, etc. For living (biotic) animal behavior Taxonomy Physiology mathematics (population studies) etc.

7. Ecology… views each locale as an integrated whole of interdependent parts that function as a unit. tundra caribou

8. The interdependent parts are…

9. Nonliving dead organic matter nutrients in the soil and water. Producers green plants Tundra

10. Consumers herbivores and carnivores Decomposers fungi and bacteria Tundra Caribou

11. ECOLOGY: Levels of Organization - a hierarchy of organization in the environment

12. Levels of organization - Terms Biosphere Surface of the earth Composed of many ecosystems Ecosystem Large or small as we decide Backyard, O’Melveney Park, Hedge along Room 110, etc.

13. Levels of organization - Terms Population – one species live in one place at one time Community – All populations (diff. species) that live in a particular area.

14. Levels of organization - Terms Habitat – physical location of community Organism – simplest level of organization

15. Very complex Can contain 100’s to 1000’s of interacting species.

16. THEN… Ecology is an integrated and dynamic study of the environment.... as the relationship between humans and the natural environment. Researchers in ecologycan study individuals, populations, communities, and ecosystems. At... www.wiseGEEK.comwww.wiseGEEK.com

17. This powerpoint was kindly donated to www.worldofteaching.com www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.http://www.worldofteaching.com www.philadelphia.edu.jo/courses/.../What%20is%20Ecolog y.ppt www.philadelphia.edu.jo/courses/.../What%20is%20Ecolog y.ppt http://www.wisegeek.com/what-is-ecology.htm