3.7 - components of biodiversity

• What are 3 components of biodiversity?

  • genetic diversity
  • species diversity
  • ecosystem diversity
• Define genetic diversity

  the number and frequency of all the alleles within a population
• What happens when a species dies out?

  • Species loses genetic diversity
  • limits ability to adapt to changing conditions
• Define species diversity?

  The number of different species in an ecosystem (species richness) and the proportion of each species in the ecosystem
• Define ecosystem diversity

  The number of distinct ecosystems within a defined area