IB Environmental systems and societies Topic 2: Ecology

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)

2.2A First law of thermodynamics

2.2B Photosynthesis and cellular respiration

2.2C Second law of thermodynamics

2.2D Food Chain and Energy Loss

2.2E Gross productivity and Net productivity

2.2F Food Web and Biomass

2.2G Ecological Pyramids

2.2H Pollutants and human activities

2.2I Productivity and Ecological efficiency (HL)

2.2J Modes of nutrition (HL)

2.3A Biogeochemical cycles

2.3B Carbon cycle

2.3C Carbon in lithosphere (HL)

2.3D Methane (HL)

2.3E Nitrogen cycle (HL)

2.4A Climate

2.4B Biomes

2.4C The tricellular mode of atmospheric circulation

2.4D Climate in biomes (HL)

2.4E El Nino (HL)

2.4F Tropical cyclones (HL)

2.5A Zonation

2.5B Succession

2.5C Ecosystem resilience

2.5D Community and productivity in succession (HL)

2.5E Climax communities and plagioclimax (HL)