IB Biology Topic D4.2: Sustainability and Change Notes

D4.2.1 Stability as a property of natural ecosystems

3 minute read

D4.2.2 Requirements for stability in ecosystems

7 minute read

D4.2.3 Deforestation of Amazon rainforest

8 minute read

D4.2.4 Use of a model to investigate the effect of variables on ecosystem stability

7 minute read

D4.2.5 Role of keystone species in the stability of ecosystems

5 minute read

D4.2.6 Assessing sustainability of resource harvesting from natural ecosystems

6 minute read

D4.2.7 Factors affecting the sustainability of agriculture

11 minute read

D4.2.8 Eutrophication of aquatic and marine ecosystems due to leaching

8 minute read

D4.2.9 Biomagnification of pollutants in natural ecosystems

8 minute read

D4.2.10 Effects of microplastic and macroplastic pollution of the oceans

7 minute read

D4.2.11 Restoration of natural processes in ecosystems by rewilding

8 minute read

D4.2.12 Ecological succession and its causes (HL)

5 minute read

D4.2.13 Changes occurring during primary succession (HL)

6 minute read

D4.2.14 Cyclical succession in ecosystems (HL)

5 minute read

D4.2.15 Climax communities and arrested succession (HL)

8 minute read