IB Environmental systems and societies Topic 2.1 Individuals, Populations, Communities and Ecosystems (SL/HL) covers syllabus content. Use these notes, questionbank, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
What this topic covers
2.1A Organisms
2.1B Population
2.1C Ecological Niche and Population Interactions
2.1D Carrying capacity
2.1E Population size and growth
2.1F Population abundance estimation
2.1G Community
2.1H Habitat
2.1I Ecosystems
2.1J Keystone species
2.1K Planetary boundaries model and biosphere integrity
2.1L Classification methods (HL)
2.1M Niche (HL)
2.1N r- and K strategists (HL)
2.1O Knowledge of species' classification (HL)