Ecology: Interactions in the Environment

Ecology, originating from the Greek words "Oikos" and "Logos," is the study of interactions between living and non-living components in the environment. It encompasses the relationships between plants, animals, microorganisms, and abiotic factors like light, water, nutrients, and atmosphere. Studying ecology involves exploring various disciplines like climatology, biology, and mathematics to understand how organisms interact within ecosystems at different levels of organization.

• Ecology
• Environment
• Interactions
• Ecosystems
• Study

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1. What is Ecology?

2. Origin of the wordecology Greek origin OIKOS = household LOGOS = study of Study of the house/environment in which we live.

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

4. Living organisms Plants Animals microorganisms in soil, etc.

5. 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.

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

7. The interdependent parts are

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

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

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

11. 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.

12. 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.

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

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

15. THEN Ecology is an integrated and dynamic study of the environment.

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