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Ecology Energy Flow

Ecology Energy Flow. What is Ecology?. Ecology is the study of interactions that take place between organisms and their environment . Levels of Ecology. Biome. Ecosystem. Community. Population. Organism. How Do Organisms Interact ?. Producers ( Autotrophs )

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Ecology Energy Flow

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  1. EcologyEnergy Flow

  2. What is Ecology? • Ecology is the study of interactionsthat take place between organismsand their environment.

  3. Levels of Ecology Biome Ecosystem Community Population Organism

  4. How Do Organisms Interact? • Producers (Autotrophs) • organisms that produce their own energy, and are food for other organisms. • Consumers (Heterotrophs) • organisms that have to eat other organisms for their energy

  5. Consumers Come in a Wide Variety • Herbivores • Organisms that eat only plant material. • Carnivores • Organisms that eat only other animals. • Omnivores • Organisms that eat both plant and animal. • Detritivores • Organisms that eat “dead matter” (buzzards and vultures) • Decomposer • Organisms that break down organic matter (fungi and bacteria)

  6. Who eats who? Food Chain - a series of steps showing which organisms eat which. (transfer energy) 3rd Order consumer 1st order Consumer 2nd Order Consumer 4th Order Consumer Producer(trapped sunlight & stored food)

  7. A Food Web -a chart linking all food chains in a particular area

  8. How to Read a Food Web • The purpose of a food web is to track the flow of energy. • The arrow points the direction the energy is going • Is the energy being transferred from the burger to you or you to the burger?

  9. TrophicLevels Each Level In A Food Chain or Food Web is a Trophic Level. Energy in an ecosystem flows from one trophic level to the next as one organism consumes another.

  10. Tropic Levels • Producers • Always The FirstTrophic Level • How Energy Enters The System • Herbivores (Primary consumer) • SecondTrophic Level

  11. Tropic Levels • Carnivores/Omnivores (Secondary & Tertiary Consumers) • Make Up The Remaining Trophic Levels * Each level dependson the one belowit for energy.

  12. Knowledge Check • Who are the producers? • Who are the tertiary consumers? • Where does the shrew get its energy? Marsh Grass, Algae and Pickleweed Marsh Hawk and Heron Grasshopper

  13. Biomass Pyramids 1. Ecological Pyramids Numbers Pyramids 2. There are 3 types of ecological pyramids Energy Pyramids 3.

  14. Ecological Pyramids • Biomass Pyramid • each level in the pyramid shows the total amount of organisms in the level by mass (kg).

  15. Ecological Pyramids Numbers pyramid • each level shows the numbers of individuals in the pyramid

  16. Ecological Pyramids 90%of energy is lost in the form of heat from one level to the next. Energy pyramid • each transition shows the amount of energy that is lost from one level to the next. .1% Energy 1% Energy 10% Energy 100% Energy 10% Rule: Only 10% of your food is actually incorporated into making you!

  17. Ecology Vocabulary • Ecology • Bioshpere • Abiotic Factors • Biotic Factors • Population • Biological Community • Ecosystem • Habitat • Niche • Symbiosis • Mutualism • Commensalism • Parasitism • Autotroph • Heterotroph • Decomposers • Food Chain • Trophic Level • Food Web • Biomass

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