Abiotic and Biotic factors

• Abiotic Factors can vary in an ecosystem

  • moisture level
  • light intensity
  • temperature
  • carbon dioxide level
  • wind intensity and direction
  • oxygen level
  • soil pH and mineral content
  • a change in environment could be an increase or decrease in an abiotic factor
  • these can affect the size or population in a community
• Biotic factors

  • new predators arriving
  • competition
  • new pathogens
  • availability of food