Biodiversity

• biodiversity

  variety of different species of organisms on earth
• biodiversity ensures stability of ecosystems by having a high biodiversity as species depend on each other
• 3 types of waste pollution

  • water - sewage & toxic chemicals pollute lakes, rivers, oceans
  • land - toxic chemicals for farming, nuclear waste, landfill sites
  • air - smoke & acidic gases released into the atmosphere
• global warming

  is the increase in the average temperature of the earth's surface
• consequences of global warming

  • sea levels rise
  • rainfall changes
  • distribution of plants & animals changing
  • changes in migration patterns
  • biodiversity could reduce
• deforestation

  cutting down of trees
• land use purposes

  • quarrying
  • building
  • farming
  • dumping waste
• problems caused by deforestation

  • more CO2 released into the atmosphere
  • results in less biodiversity
• peat bogs are formed when decaying vegetation is buried under layers of peat
• peat bogs add more CO2 into the atmosphere
• ways to maintain ecosystems & biodiversity

  • breeding programmes for endangered species
  • protection & regeneration of rare habitats
  • reintroduction of field margins & hedgerows
  • reduction of deforestation & CO2 emissions
  • recycling resources
• advantages of human interaction on biodiversity

  • restoring ecosystems
  • raises awareness
  • encourages sustainability
  • protects wildlife
• disadvantages of human interaction on biodiversity

  • habitat destruction
  • pollution and contamination
  • overexploitation of resources
  • protecting biodiversity costs money