Ecology Energy Flow. *Food Chain A visual representation of various organisms in an ecosystem with arrows to show how energy is transferred (usually)

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Presentation transcript:

Ecology Energy Flow

*Food Chain A visual representation of various organisms in an ecosystem with arrows to show how energy is transferred (usually) by consuming another.

Food Web A visual representation of various energy systems in an ecosystem assignment-discovery-the-food-web- video.htm

Energy Pyramid A visual representation of various energy systems in an ecosystem showing how energy is transferred at each level. Energy is lost as you move up the pyramid assignment-discovery-energy-flow- video.htm

Producers/Autotrophs Organisms that use the sunlight to create (produce) it’s own energy. Also called an autotroph.

Consumers/Heterotrophs Organisms that have to consume (eat) other organisms to obtain energy. Also called a heterotroph.

Let’s Review assignment-discovery-autotrophs-and- heterotrophs-video.htm

Herbivores Organisms that have to primarily eat grasses/plant material.

Carnivores Organisms that have to primarily eat meat/protein material.

Omnivore Organisms that eat both meat/protein and plant material.

*Let’s Review

Decomposers Organisms that break down wastes such as dead materials and recycle them in an environment.

Scavengers Organisms that tend to eat dead/decaying matter… garbage

Relationships between species I.Competition II.Predation III.Symbiosis

Limiting Factors Factors in the environment that can “limit” a population’s growth. Ex: weather, predation, lack of resources (water, food), habitat destruction, pollution…

I. Competition The struggle for organisms to survive as they compete for natural resources including habitat. vulture/cathartes-aura/video-08.html

II. *PredationPredation II. *PredationPredation One organism killing another for food. *Great example of perseverance, species relationships…and Mother’s Day all in one.

III. Symbiosis *Mutualism-*Mutualism- both species benefit (win/win) (+/+)

III. Symbiosis Commensalism- a relationship in which 1 species benefits and the other species is neither helped nor harmed. (+/0)

III. Symbiosis *Parasitism*Parasitism- a relationship in which 1 organism lives on or inside another harming it. (+/-)