Biotic factors

• What 2 types of competition affect abundance?

  Interspecific + Intraspecific
• What is interspecific competition?

  • Between 2 species
  • Compete for same resources
  • Less energy for growth + reproduction
  • Reduce population size
• What is intraspecific competition?

  • Within species
  • As population size increases
  • Less resources available
  • So population size falls
  • Now resources increase
  • So population size rises
• In intraspecific competition, what does carrying capacity refer to?

  • Max population size environment can support