EcologyMemory Aid

Memory Aid

Part of Biodiversity and Human Impacts · GCSE GCSE Biology revision

This memory aid covers Memory Aid within Biodiversity and Human Impacts for GCSE Biology. Topic 5: Biodiversity and Human Impacts on Ecosystems It is section 12 of 16 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.

Topic position

Section 12 of 16

Practice

20 questions

Recall

19 flashcards

🧠 Memory Aid

Human causes of biodiversity loss — "WILD" mnemonic:

  • Waste and pollution (water, land, air)
  • Intensive land use (farming, building, quarrying)
  • Loss of forests (deforestation)
  • Destruction of peat bogs

Conservation methods — "BRP + SHR" (Breeding, Replanting, Protected areas + Seed banks, Hedgerows, Recycling):

  • Breeding programmes for endangered species
  • Reforestation — planting trees to restore habitats
  • Protected areas — SSSIs, national parks, nature reserves
  • Seed banks — frozen insurance for plant diversity
  • Hedgerow and field margin restoration
  • Recycling — reduces waste going to landfill

The peat bog cycle: "PEAT protects — Preserve it!" Peat bogs Preserve organic carbon by keeping it Enclosed in Anaerobic, waterlogged conditions and locked away for Thousands of years. Drain them and that carbon escapes as CO₂.

Keep building this topic

Read this section alongside the surrounding pages in Biodiversity and Human Impacts. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Biodiversity and Human Impacts

What is the best definition of biodiversity?

  • A. The total number of individual organisms in an ecosystem
  • B. The variety of all different species of organisms on Earth or within a particular ecosystem
  • C. The process by which species adapt to their environment over time
  • D. The number of plants found in a habitat
1 markfoundation

Explain why deforestation leads to a reduction in biodiversity.

3 marksstandard

Quick Recall Flashcards

What is eutrophication and what causes it?
Eutrophication is when excess nutrients (from fertiliser or sewage run-off) enter water. This causes rapid algae growth, blocking sunlight to underwater plants. When algae die and decompose, oxygen is used up, killing aquatic organisms.
What is biodiversity?
The variety of all different species of organisms on Earth, or within a particular ecosystem. Includes the range of different habitats and genetic variation within species.

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