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IB ESS SL 3.2.4 Iucn Red List Questions

Interpret Red List evidence and use it to assess extinction risk and conservation priority.

Syllabus
First assessment 2026
Course
ESS SL
Level
SL

Exam points

  • identify and apply IUCN Red List criteria including population size, mature individuals, geographic range, fragmentation, habitat quality and extinction risk
  • interpret Red List tables, graphs and calculations to compare threat categories and conservation status
  • explain how human activity can alter Red List criteria and why conservation status may improve or worsen

Learn this topic

Study 3.2.4—IUCN Red List conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB ESS SL 3.2.4 Iucn Red List Questions question 1

[Maximum number: 1]
World map showing the location of New Zealand

Figure:World map showing the location of New Zealand

Topographic map of New Zealand

Figure:Topographic map of New Zealand

Percentage of New Zealand species by extinction threat categories

Figure:Percentage of New Zealand species by extinction threat categories

Key:
□\square Threatened□\square At risk of becoming threatened
□\square Not threatened□\square Insufficient data

With reference to Figure: Percentage of New Zealand species by extinction threat categories, identify the group of species which has the highest percentage in the threatened category.

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