Bell Ringer 3/7/2013 Draw a food chain that includes a producer, and 2-3 animals. Show arrows! Progress reports ON DESK! 

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Presentation transcript:

Bell Ringer 3/7/2013 Draw a food chain that includes a producer, and 2-3 animals. Show arrows! Progress reports ON DESK! 

Intro to Ecology and Energy Flow

Ecology Study of interactions of organisms and their environment.

Part of planet in which life exists The Biosphere Part of planet in which life exists

Biosphere Organization Species: group of organisms that can breed and produce fertile offspring.

Biosphere Organization Population: groups of individuals of same species that live in the same area.

Biosphere Organization Communities: groups of different populations that live together in a certain area.

Biosphere Organization Ecosystem: All the organisms that live in a particular place together with their nonliving environment.

Biosphere Organization Biome: group of ecosystems with same climate and similar plant and animals

Methods to Study Ecology Observing Experimenting Modeling

FOOD CHAIN Series of steps in which organisms transfer energy by eating and being eaten.

Complex interactions between organisms Multiple food chains! FOOD WEB Complex interactions between organisms Multiple food chains!

Each step in a food chain or food web. Trophic Levels Each step in a food chain or food web.

Bell Ringer 3/8/2013 What is the difference between a food chain and a food web? Include QUESTION and ANSWER! Food Chain: Consists of a producer & 2-3 animals Food Web: Complex & consists of many food chains

Shows amounts of energy or matter contained within each trophic level Energy Pyramid Shows amounts of energy or matter contained within each trophic level Bottom: Plants Top: Tertiary Consumer

Energy Pyramid

Biological Magnification Accumulation (build up) of toxins in organisms GREATER Biological Magnification as you move UP in tropic levels in a food chain Top of the food chain Most affected

Biomagnification http://www.youtube.com/watch?v=E5P-UoKLxlA

Bell Ringer 3/8/2013 What is biological magnification? Which organism is affected the most? Include QUESTION and ANSWERS! Accumulation (build up) of toxins in organisms: MORE toxins as you move up the food chain Top of the food chain Most affected

http://www.montereyinstitute.org/noaa/lesson13/l13la1.html