IB ESS 2.1.8 Niche
IB ESS 2.1.8 Niche

IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026
Practise describing ecological niches through resource use, biotic interactions, abiotic conditions and field sampling evidence.
How this is tested
- describe a field method using quadrats, transects or baseline surveys to study a niche
- link abiotic and biotic conditions to the role and resource needs of a species
- estimate abundance data for a food chain or habitat using sampled area evidence
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