Ecology

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This evaluates about the study of interactions between biotic and abiotic factors in the environment.

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Ecology

  1. 1. ECOLOGYBasic Principles in Ecology
  2. 2. THE ECOSYSTEMAll organisms, theirinteractions with oneanother and theirenvironments make up anecosystem.
  3. 3. Biotic AbioticFactors Factors Producers Water, soil Temperature, Consumers wind Light, nutrient sDecomposers (C, O, P, N, etc. )
  4. 4. TERMINOLOGIES:BIOTIC FACTORS = living components in an ecosystemABIOTIC FACTORS = non- living components in an ecosystemHABITAT = part of an ecosystem where species live
  5. 5. POPULATION = group of similarspecies living in one area orhabitatECOLOGICAL NICHE / NICHE =the way where organisms relateor pursue in their environment(surviving in an area)
  6. 6. TRANSFER OFENERGY IN AN ECOSYSTEM
  7. 7. TRANSFER OF ENERGY IN ANECOSYSTEM Herbivores – eat plantsOmnivores Carnivores–eat both CONSUMER – eat plants & animals animals Scavengers – feed only on dead organisms
  8. 8. FOOD CHAINOrganisms in one level feedupon organisms at thelower level.
  9. 9. FOOD WEBIt is a network of interactingfood chains.
  10. 10. ECOLOGICAL PYRAMID This shows how energy is transferred and changed when going up the pyramid.
  11. 11. THREE TYPES OF ECOLOGICALPYRAMIDA. Pyramid of Energy – shows the amount of energy in calories (Kcal / cal)B. Pyramid of Biomass – shows the biomass of all organisms and individualsC. Pyramid of Numbers – shows the number of individuals feeding at each tropic level
  12. 12. PYRAMID OF ENERGY
  13. 13. PYRAMID OF BIOMASS
  14. 14. PYRAMID OF NUMBERS
  15. 15. TAKE NOTE:These pyramids show thatthe biomass or numbers ofindividuals in each trophiclevel decreases along withthe available energy.

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