IB Env. Systems & Socs


Introduction: Each WRL data set was linked to the appropriate part of the IB ES framework which we thought could be a relevant place in which to use a particular case study.  The IB ES course codes were then noted and linked to the reference code for WRL.  Whilst some links are more directly applicable to the data set than others, they might be a valuable example to use and include in a scheme of work. We also realise that some of our matching may be more ‘on target’ than others (I suppose you can only do this accurately if you actually teach it!) so we welcome any feedback from teachers and how they have or might use this resource. Click on the WRL dataset module codes in the table below for an overview of the relevant case study.

Reference: Environmental systems and societies guide 2010

 Main Topic  Sub-topics  WRL matching  Keywords
 Topic 2 The Ecosystem 2.1 Structure  2.1.1 Distinguish between biotic and abiotic (physical) components of an ecosystem. MO1D01
abiotic, biotic,ecosystem
 2.1.2 Define the term trophic level. inherent in many datasets trophic level
 2.1.3 Identify and explain trophic levels in food chains and food webs selected from the local environment. MO1D03
food chain, food webs, producers, consumers, herbivores, carnivores.
2.1.6 Define the terms species, population, habitat, niche, community and ecosystem with reference to local examples. inherent in many datasets population, habitat, niche, community, ecosystem
2.1.7 Describe and explain population interactions using examples of named species. MO1D04
competition, mutualism, predation, population interactions
2.2 Measuring abiotic components of the ecosystem 2.2.1 List the significant abiotic (physical) factors of an ecosystem. MO1D01
abiotic, biotic, ecosystem
2.2.2 Describe and evaluate methods for measuring at least three abiotic (physical) factors within an ecosystem MO1D01
abiotic, marine, coral reef, terrestrial
 2.3 Measuring biotic components of the ecosystem  2.3.1 Construct simple keys and use published keys for the identification of organisms. MO4D03 classification, keys, identification
 2.3.2 Describe and evaluate methods for estimating abundance of organisms. MO1D01
capture-mark-recapture-release, quadrat, population density, transects
 2.3.4 Define the term diversity. inherent in many datasets biodiversity, sampling,
 2.4 Biomes  2.4.1 Define the term biome. inherent in many datasets biome, rainforest
 2.5 Function  2.5.1 Explain the role of producers, consumers and decomposers in the ecosystem. MO1D03 producers, consumers, decomposers
 2.6 Changes  2.6.7 Describe factors affecting the nature of climax communities. MO1D03
climatic, edaphic, human impact, agriculture
 2.7 Measuring changes in the system  2.7.1 Describe and evaluate methods for measuring changes in abiotic and biotic components of an ecosystem along an environmental gradient. MO1D01
abiotic, biotic
 2.7.2 Describe and evaluate methods for measuring changes in abiotic and biotic components of an ecosystem due to a specific human activity. MO4D02 abiotic, biotic, human impact, fishing
Topic 3 Human Population, carrying capacity and resource use.  3.4 The soil system  3.4.3 Outline the processes and consequences of soil degradation. MO5D01
overgrazing, agriculture, overfishing
Topic 4  Conservation and biodiversity.  4.1 Biodiversity in ecosystems  4.1.1 Define the terms biodiversity, genetic diversity, species diversity and habitat diversity. inherent in many datasets biodiversity
 4.1.5 Explain the relationships among ecosystem stability, diversity, succession and habitat. MO1D02
human activities, fishing, succession
 4.2 Evaluating biodiversity and vulnerability  4.2.1 Identify factors that lead to loss of diversity. MO4D01  habitat degradation, agriculture, invasive species, introduced species, non- native
 4.2.2 Discuss the perceived vulnerability of tropical rainforests and their relative value in contributing to global biodiversity. Rainforest datasets touch on this. rainforest
 4.2.7 Describe the case history of a natural area of biological significance that is threatened by human activities. MO3D04
degradation, human impact
 4.3 Conservation of Biodiversity  4.3.4 Evaluate the success of a named protected area. MO5D02 conservation
Topic 5 Pollution Management  5.2 Detection and monitoring of pollution  5.2.3 Describe and explain an indirect method of measuring pollution levels using a biotic index. MO1D02
biotic index, indicator
 Topic 6 The issue of global warming  6.1 The issue of global warming  6.1.3 Discuss qualitatively the potential effects of increased mean global temperature. Many touch on this issue. global warming, climate change


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