At Higher Level, Topic 3.1 includes the Simpson diversity index and more detailed statistical analysis of biodiversity data. HL students must calculate and interpret diversity indices, evaluate sampling methodologies, and analyse biodiversity trends with greater quantitative rigour.
Key Idea: Biodiversity keeps ecosystems healthy. Measuring it helps us make smart conservation choices.
D = \frac{N(N-1)}{\sum n(n-1)}Link: **biodiversity → resilience → ecosystem services → conservation**. Use examples!
At Higher Level, ESS includes an extended essay component and deeper analytical questioning. Expect longer data-response questions and more complex case study scenarios in both Paper 1 and Paper 2.
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Start studying freeTopic 3.1 Biodiversity forms a core part of Unit 3: Biodiversity and Conservation in IB ESS HL. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.
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