Maintaining Biodiversity

Why It Matters

• Biodiversity: variety of all species of organisms on Earth.

• Rich biodiversity → more stable ecosystems.

• Human activities (deforestation, pollution, land use, global warming) reduce biodiversity.

Ways to Reduce Biodiversity Loss

1. Breeding Programs

• Aim: increase numbers of endangered species.

• Example: Sumatran tiger – only a few hundred remain in the wild.

• Zoos collaborate to breed individuals and maintain genetic diversity.

2. Protecting & Regenerating Habitats

• Aim: Protect and regenerate habitats at risk

• Example: Wetlands high biodiversity but many were drained for crops.

• Actions:

  • Protect remaining wetlands.

  • Re-flood drained wetlands to restore habitats.

3. Conservation on Farms

• Monoculture (single-crop fields) → low biodiversity.

• Solutions:

  • Field margins: strips of land left for wild plants & animals.

  • Hedgerows: plant diverse species between fields → provide habitats.

4. Government Action

• Reduce deforestation → e.g., national parks in the Amazon Rainforest.

• Reduce carbon dioxide emissions → renewable energy (wind, solar) to combat global warming.

5. Individual Action

• Recycle waste → less waste in landfills → fewer habitats destroyed.

• Every small action contributes to preserving biodiversity.

✅ Key Idea: Biodiversity can be preserved through a combination of breeding programs, habitat protection, sustainable farming, government policies, and individual responsibility.