Biodiversity

• Biodiversity is the variety of different species in an ecosystem
• Range of habitats decrease due to human activity, this is called habitat fragmentation
• Farming Techniques reducing Biodiversity:

  • Destruction of Hedgerows
  • Selective Breeding
  • Monocultures
  • Over-grazing
  • Filling ponds / draining wetlands
• Index of Diversity is the relation between number of species and number of individuals in species
• D = N(N-1)/Sum of n(n-1)

  • N = number of organisms of all species
  • n = number of organisms of specific species