ecosystem

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Presentation Transcript

Ecosystem : 

Ecosystem http://farm3.static.flickr.com/2084/2222523486_5e1894e314.jpg

An ecosystem is a natural unit consisting of all : 

An ecosystem is a natural unit consisting of all Biotic Factors (living factors) Plant Animal Microorganisms Abiotic Factors( Non Living Factors) Chemical and physical make up of land and environment. http://upload.wikimedia.org/wikipedia/commons/0/0a/TB_Culture.jpg

Energy Flows in an Ecosystem : 

Energy Flows in an Ecosystem Food Chain Describes how energy flows between species in an ecosystem. Food Web Group of interconnected food chains. Food chain in a Swedish lake. From the bottom: freshwater shrimp, bleak, perch, northern pike, osprey http://commons.wikimedia.org/wiki/File:Food_chain.jpg http://commons.wikimedia.org/wiki/File:Fishing_down_the_food_web.jpg

Tropic Levels : 

Tropic Levels Consumers Producers Decomposer

Energy Pyramid : 

Energy Pyramid Ex. Coyotes Ex. Snakes and hawks Ex. Mice, Gophers and Birds Ex. Grasses, Tree Leaves, Flowers http://commons.wikimedia.org/wiki/File:Ecological_pyramid.svg

Ecosystems are dynamic : 

Ecosystems are dynamic Ecological Succession: Gradual change happens over time, and this impacts the organisms that live there. Equilibrium: Balance Carrying Capacity