Ecosystems pp
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Ecosystems pp

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Ecosystems pp Ecosystems pp Presentation Transcript

  • 11EcosystemsEcosystems
  • 22What is Ecology?What is Ecology?• Ecology is the study ofrelationships between livingthings and between livingthings and their environment.
  • 33What is an ecosystem?What is an ecosystem?• Ecosystem is a system of livingthings that interact with eachother and with the physical world.• A Biome is a collection of relatedecosystems.
  • 44Main Ecosystems:Main Ecosystems:• Desert• Rainforest• Ocean• Taiga• Tundra• Chaparral• Grassland• TemperateForrest
  • Green:Grassland Purple: Taiga Orange:TundraBlack:Temperate Forrest Yellow:Desert Brown:ChapparalWhite:Ocean
  • 66However……..However……..• An ecosystem can be as large as theSahara Desert, or as small as apuddle!!!• Ecosystems are more than just theorganisms they contain.Geography,weather,climate andgeologic factors also influence theinteractions within an ecosystem.
  • Abiotic FactorsAbiotic FactorsAre nonliving physicalAre nonliving physicalfactors of an environment.factors of an environment. Abiotoic Factors include amount of waterAbiotoic Factors include amount of waterand oxygen, temperature, amount ofand oxygen, temperature, amount ofsunlight and water pressure.sunlight and water pressure.
  • 88YOU TRY!!!YOU TRY!!!List three moreList three moreexamples of Abioticexamples of AbioticFactors:Factors:
  • 99Biotic FactorsBiotic Factors• Are the living, physicalfactors of an environment.• Examples of Biotic Factors are parasitism,disease and predation.
  • BalanceBalance Ecosystems will fail if they do notEcosystems will fail if they do notremain in balance.remain in balance. No community can carry moreNo community can carry moreorganisms than its food, water andorganisms than its food, water andshelter can accommodate.shelter can accommodate.
  • How do they stay balanced? To succeed in an ecosystem, plantsand animals have special structuresand behaviors called adaptations. Ex) ChameleonPolar BearCan you think of more examples ofadaptation?