biodiversity

• biodiversity

  variety of living organisms present in an area
• ecosystem

  all living and non-living components of a particular area
• biodiversity assessment

  • number and range of different ecosystems and habitats
  • number of species and their relative abundance
  • genetic variation within each species
• importance of biodiversity

  allows ecosystems to resist changes in the environment

  balanced ecosystems provide food, oxygen and other materials
• niche

  all the conditions and resources required for an organism to reproduce and survive

  (its role)