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An organisms role in its environment…

12A Interpret relationships (predation, parasitism, commensalism, mutualism, competition) among organisms. An organisms role in its environment…. An organisms habitat is the area where it lives. In any environment, every species fills a unique niche.

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An organisms role in its environment…

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  1. 12AInterpret relationships (predation, parasitism, commensalism, mutualism, competition) among organisms

  2. An organisms role in its environment… • An organisms habitat is the area where it lives. • In any environment, every species fills a unique niche. • A niche includes the conditions and resources a species’ needs for survival and how it obtains these resources.

  3. Relationships between Organisms

  4. COMPETITION THE DEMAND BY TWO OR MORE ORGANISMS FOR LIMITED RESOURCES SUCH AS FOOD, WATER OR SHELTER

  5. PREDATION INTERACTION IN WHICH ONE ORGANISM CAPTURES AND FEEDS ON ANOTHER ORGANISM

  6. PREDATOR • LION • THE ORGANISM CAPTURING AND FEEDING ON ANOTHER ORGANISM (THE PREY)

  7. PREY • HIPPO • ORGANISM BEING EATEN

  8. PARASITISM SYMBIOTIC RELATIONSHIP IN WHICH ONE ORGANISM LIVES IN OR ON ANOTHER ORGANISM & CAUSES IT HARM

  9. PARASITE • TICK • ORGANISM LIVING IN OR ON ANOTHER ORGANISM CAUSING IT HARM

  10. HOST • DOG • ORGANISM BEING HARMED BY PARASITE

  11. COMMENSALISM SYMBIOTIC RELATIONSHIP IN WHICH ONE ORGANISM BENEFITS & ANOTHER ORGANISM IS NEITHER HARMED NOR BENEFITS

  12. Whale & Barnacle

  13. Egrets & Cattle

  14. MUTUALISM SYMBIOTIC RELATIONSHIP IN WHICH BOTH ORGANISMS BENEFIT

  15. Clown Fish & Anemone

  16. Flowers & Bees

  17. 12CAnalyze the flow of matter & E through trophic levels using various models (food webs, food chains, and ecological pyramids).

  18. AUTOTROPH • aka PRODUCER • an organism that captures E from sunlight or chemicals & use it to produce its own food ex: most plants

  19. HETEROTROPH • aka CONSUMER • an organism that obtains E from the food it consumes ex: humans, snakes, rhino, jaguar

  20. PRIMARY CONSUMER

  21. SECONDARY CONSUMER

  22. TERTIARY CONSUMER

  23. QUATERNARY CONSUMER

  24. HERBIVORE • Organism that obtains E from eating plants

  25. OMNIVORE • Organism that obtains E by eating both plants & animals

  26. CARNIVORE • Organism that obtains E by eating animals

  27. DETRITIVORE • aka DECOMPOSER • Organism that feeds on dead plant & animal material & other dead matter

  28. SCAVENGER • Animals that eat dead animals Ex: Vultures, Tasmanian devils

  29. FOOD CHAIN • the sequence of who eats whom in a biological community (an ecosystem) to obtain nutrition. • starts with the primary energy source • Ends with the top predator

  30. FOOD CHAIN Quaternary consumer Tertiary consumer Secondary consumer Primary consumer Producer

  31. FOOD WEB • Let’s put some food chains together…

  32. Label the organisms in your notes.*organisms can have more than 1 label.

  33. ECOLOGICAL PYRAMID • Represents the producers and consumers in an ecosystem in a pyramid shaped-diagram.

  34. Where does all E come from?

  35. As you go up trophic levels,10% of Energy is lost. Why?

  36. Most of the E is available at what level?

  37. Biological Magnification the increasing concentration of toxic substances within each successive link in the food chain

  38. As you go up trophic levels, the number contaminants increases.

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