IB ESS HL 3.003.2 Conservation Strategies Question Bank
Compare in-situ and ex-situ conservation strategies and their trade-offs.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Exam points
- identify the conservation issue or strategy
- apply the relevant ecological, ethical or management framework
- evaluate evidence, trade-offs and likely outcomes
3.3.2—Conservation strategies question 1
protected areas and biodiversity
- Over 25% of land is protected forest and reserves with over 190 protected sites.
- Ecosystems range from coral reefs and mangroves to tropical rainforests and provide goods and environmental services.
Figure:Development of protected areas in Costa Rica
| Total number of species | more than 500000 |
|---|---|
| Flowering plants | 9000 |
| Ferns | 800 |
| Mammals | 250 |
| Birds | 850 |
| Reptiles | 220 |
| Amphibians | 200 |
| Insects | more than 300000<br>(including more than 1200 butterflies and 8000 moths) |
Table:Estimated number of species in Costa Rica
Explain three ways in which the development of protected areas shown in Figure: Development of protected areas in Costa Rica has improved the conservation of species.
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