Introduction to Ecology

1
Introduction to Ecology
Free Powerpoint Templates
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Ecology

• Scientific study of interactions among organisms
  and between organisms and their environment.

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Ecosystem

• Collection of all the organisms that live in a
  particular place, together with their non-living
  environment.

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Biotic Vs. Abiotic

• Biotic living factors

• Abiotic non-living factors

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Biosphere Vs. Biome

• Biosphere all areas on earth where living
  organisms survive

• Biome A combination of ecosystems that are in
  the same climate and have the same set up.

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Population Vs. Community

• Population A group of the same species in the
  same area.

• Community A group of populations that live
  within the same area

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Niche

• How organisms compete or work with each other to
  keep the ecosystem functioning properly.

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Species

• A group of similar organisms that can breed
  together.

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Carrying Capicity

• The maximum amount of organisms of a species that
  can be supported by an area.
• Determined by available resources. (water,
  space, food)

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Symbiosis

• act of living together
• What it means
• Two organisms that live together
• Temporarily or for a longer time
• At least one of the organisms benefits from
  the relationship

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Mutualism

• both organisms benefit
• Ex
• Bumble Bees and plants
• Clown fish and Sea Anemones
• E. coli in your intestines

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Commensalism

• one species benefits while the other is
  unaffected
• Examples
• barnacles on a whale
• Cattle Egrets and cows

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Parasitism

• one species benefits while the other is harmed
• Examples
• fleas on a dog
• tapeworm in our intestines
• mosquitoes