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A4.2.7—Conservation approaches

Conservation combines in situ protection, reserve design, active management, rewilding, and ex situ methods according to species needs and threats.

Syllabus
First assessment 2025
Objective
A4.2.7
Level
HL

Exam analysis

Chance of appearing11%of analysed past papers
Latest appearanceMay 2025
Most common paperPaper3
Typical marks2–3

Common command terms

  • Discuss
  • Outline
  • Distinguish
  • Explain
  • Suggest

Scoring notes

Common mistake
Defining in situ and ex situ without linking each approach to its conservation advantages and limits.

Recent exam appearances

May 2025Paper2 ["HL"] · TZ26(c)(ii)[ 1 ]A4.2.7—Conservation approaches
May 2024Paper3 ["HL"] · TZ118[ 3 ]A4.2.7—Conservation approaches
May 2023Paper3 ["HL"] · TZ117(b)[ 2 ]A4.2.7—Conservation approaches
May 2019Paper3 ["HL"] · TZ217[ 3 ]A4.2.7—Conservation approaches
May 2018Paper3 ["HL"] · TZ117(b)[ 3 ]A4.2.7—Conservation approaches
Practice this objective

Coverage 2012–2025 · Updated 15 Jul 2026

Concept essentials

  • In situ conservation protects species within their natural habitats and communities.
  • Ex situ conservation preserves species outside natural habitats through controlled collections or breeding programmes.
  • Large connected reserves reduce fragmentation and support movement, gene flow and larger populations.
  • Rewilding restores natural processes by reintroducing native species, rebuilding connectivity or reducing human pressure.
ConceptIB Biology HL