ecosystem dynamics

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http://digitalmedia.fws.gov/FullRes/natdiglib/9839481C-AC57-47DF-8676681F4344A6F5.jpgPublic Domain- USFWS

Ecosystems consist of heterotrophs and autotrophs.

The organisms can be put into energy pyramids with each level called a trophic level.

Tertiary consumerSecondary consumerPrimary consumerProducer

SPHAGNUM MOSS - PRODUCER

Photo by Credit: Ted Niehaus /life.nbii.govhttp://life.nbii.gov/dml/mediadetail.do?id=4991&pt=l2&l2PageId=50157&sDir=ta&navbar=page1_view1_title_asc_15Public Domain

http://digitalmedia.fws.gov/FullRes/natdiglib/20090629LO5S0856.JPGPublic Domain- USFWS

Producers-Duckweed in Cypress Swamp

HTTP://DIGITALMEDIA.FWS.GOV/FULLRES/NATDIGLIB/09136.JPGPUBLIC DOMAIN- USFWS

Mussels eatmicroscopic plants

Primary Consumers eat producers

Secondary consumers eat primary consumers

Credit: © 2010 Bruce Avera Hunter, Courtesy of life.nbii.govPermission to use with credit

Praying mantis eats honey bee

Tertiary Consumers Eat Secondary Consumers

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Egrets eat frogs and snakes and other small predators

Lichens-2 organisms

Photo by Randolph Femmerhttp://digitalmedia.fws.gov/cdm4/item_viewer.php?CISOROOT=/natdiglib&CISOPTR=1649&CISOBOX=1&REC=16Public Domain-

Trophic Levels

Tertiary Consumers

Secondary Consumers

Primary Consumers

Producers

Tertiary Consumers

Secondary Consumers

Primary Consumers

Producers

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