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EcosystemsEcosystems
22
What is Ecology?What is Ecology?
• Ecology is the study of
relationships between living
things and between living
things and their environment.
33
What is an ecosystem?What is an ecosystem?
• Ecosystem is a system of living
things that interact with each
other and with the physical world.
• A Biome is a collection of related
ecosystems.
44
Main Ecosystems:Main Ecosystems:
• Desert
• Rainforest
• Ocean
• Taiga
• Tundra
• Chaparral
• Grassland
• Temperate
Forrest
Green:Grassland Purple: Taiga Orange:Tundra
Black:Temperate Forrest Yellow:Desert Brown:Chapparal
White:Ocean
66
However……..However……..
• An ecosystem can be as large as the
Sahara Desert, or as small as a
puddle!!!
• Ecosystems are more than just the
organisms they contain.
Geography,weather,climate and
geologic factors also influence the
interactions within an ecosystem.
Abiotic FactorsAbiotic Factors
Are nonliving physicalAre nonliving physical
factors of an environment.factors of an environment.
 Abiotoic Factors include amount of waterAbiotoic Factors include amount of water
and oxygen, temperature, amount ofand oxygen, temperature, amount of
sunlight and water pressure.sunlight and water pressure.
88
YOU TRY!!!YOU TRY!!!
List three moreList three more
examples of Abioticexamples of Abiotic
Factors:Factors:
99
Biotic FactorsBiotic Factors
• Are the living, physical
factors 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 not
remain in balance.remain in balance.
 No community can carry moreNo community can carry more
organisms than its food, water andorganisms than its food, water and
shelter can accommodate.shelter can accommodate.
How do they stay balanced?
 To succeed in an ecosystem, plants
and animals have special structures
and behaviors called adaptations.
 Ex) Chameleon
Polar Bear
Can you think of more examples of
adaptation?

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Ecosystems pp

  • 2. 22 What is Ecology?What is Ecology? • Ecology is the study of relationships between living things and between living things and their environment.
  • 3. 33 What is an ecosystem?What is an ecosystem? • Ecosystem is a system of living things that interact with each other and with the physical world. • A Biome is a collection of related ecosystems.
  • 4. 44 Main Ecosystems:Main Ecosystems: • Desert • Rainforest • Ocean • Taiga • Tundra • Chaparral • Grassland • Temperate Forrest
  • 5. Green:Grassland Purple: Taiga Orange:Tundra Black:Temperate Forrest Yellow:Desert Brown:Chapparal White:Ocean
  • 6. 66 However……..However…….. • An ecosystem can be as large as the Sahara Desert, or as small as a puddle!!! • Ecosystems are more than just the organisms they contain. Geography,weather,climate and geologic factors also influence the interactions within an ecosystem.
  • 7. Abiotic FactorsAbiotic Factors Are nonliving physicalAre nonliving physical factors of an environment.factors of an environment.  Abiotoic Factors include amount of waterAbiotoic Factors include amount of water and oxygen, temperature, amount ofand oxygen, temperature, amount of sunlight and water pressure.sunlight and water pressure.
  • 8. 88 YOU TRY!!!YOU TRY!!! List three moreList three more examples of Abioticexamples of Abiotic Factors:Factors:
  • 9. 99 Biotic FactorsBiotic Factors • Are the living, physical factors of an environment. • Examples of Biotic Factors are parasitism, disease and predation.
  • 10. BalanceBalance  Ecosystems will fail if they do notEcosystems will fail if they do not remain in balance.remain in balance.  No community can carry moreNo community can carry more organisms than its food, water andorganisms than its food, water and shelter can accommodate.shelter can accommodate.
  • 11. How do they stay balanced?  To succeed in an ecosystem, plants and animals have special structures and behaviors called adaptations.  Ex) Chameleon Polar Bear Can you think of more examples of adaptation?