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ECOSYSTEM

ECOSYSTEM. Ecosystem. 3 levels that make up an ecosystem Individual Population Community Is a natural unit of living (Biotic) and non-living (Abiotic) things that work together. Eg: Marine, Aquatic, Desert, Rainforest, Tundra and many more. Notes.

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ECOSYSTEM

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  1. ECOSYSTEM

  2. Ecosystem • 3 levels that make up an ecosystem • Individual • Population • Community • Is a natural unit of living (Biotic) and non-living (Abiotic) things that work together. • Eg: Marine, Aquatic, Desert, Rainforest, Tundra and many more

  3. Notes • An ecosystem is a community of living and non-living things that work together.

  4. Trophic Relations • Ecosystems are natural machines that change matter and energy in the area • Trophic- from the Greek word FOOD • Trophic relations: the natural connections of food between living organisms ie. The food chain

  5. Food Chain • Producers • Consumers • Decomposers

  6. Producers • Producers are organisms, (photosynthetic) like green plants, that produce organic compounds from inorganic compounds. • Autotroph - lowest level in the food chain • They use sun light, carbon dioxide, and nutrients to produce organic material • Inorganic: water, salts, minerals • Organic: proteins, fats

  7. Consumers • Organisms that obtain nutrients from other organisms. This is also a heterotroph. • Heterotroph is an organism that cannot synthesize their own food and must obtain it. • Heterotrophs include herbivores (feed only on plants), carnivores (feed on other animals), omnivores (feed on both) and saprobes (breaking down the remains of dead plants and animals).

  8. Consumers • Many types of consumers • First order – usually herbivores • Second order • Third order • Fourth order

  9. Decomposers • An organism that primarily feeds on dead organisms or the waste from living organisms • Decomposers are the garbage men of the animal kingdom

  10. Notes • Trophic relations: Food Chain • Producers: organisms that produce organic compounds from inorganic compounds. (plants) • They use sun light, CO2, and nutrients • Inorganic: water, salts, minerals • Organic: proteins, fats

  11. Notes • Consumers: Organisms that obtain nutrients from other organisms. • First order – usually herbivores, eat only grains fruits, etc. • Second order – eat the first order animals • Third order – eat the one preceding • Fourth order – top of the food chain

  12. Notes • Decomposers: primarily feeds on dead organisms or the waste from living organisms

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