biotic & abiotic factors

• Biotic factors

  Any living factor that affects another organism or that shapes the ecosystem in some way
• Abiotic factors

  The non-living parts of the environment that can affect organisms
• Abiotic factors


  • Light intensity
  • Temperature
  • Carbon dioxide concentrations
  • Moisture levels
  • Wind intensity and direction
  • pH
  • Mineral content of soil
• Increase in temperature


  Increases the rate of photosynthesis
• Increase in temperature


  Animals have to spend less energy staying warm, so they can use more energy for growth or spend less time searching for food
• Biotic factors affecting a clownfish

  • Predation by bigger fish or eels
  • The sea anemone (habitat)
  • Competition for plankton and algae
  • Disease
• Factors like light intensity and carbon dioxide concentration might not affect the clownfish directly, but they might affect other species around them like the sea anemone, which will in turn affect the clownfish