Ecosystems Outline For Pupils

GCSE Geography Unit 1 - Climate, the Environment and People Ecosystems This short unit introduces the concept of ecosystems. You will study ecosystems at a variety of scales before undertaking a detailed case study of the Tropical Rainforest in Amazonia. Your first piece of coursework is based on this study of Amazonia. Key Issues and Questions Ecosystems operate at a variety of scales.

Ecosystems can be perceived as a resource for human benefit. Changes occur in ecosystems as a result of natural processes and/or human activity. The consequences of such changes may go beyond the immediate ecosystem. The impact of human activity on ecosystems needs careful management to achieve sustainability.

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What is an ecosystem?

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How are the components of ecosystems (inputs, outputs, flows, stores, cycles and processes) linked? At what different scales do ecosystems operate? In what ways can ecosystems be perceived as a resource?

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Why do ecosystems change? How do changes affect their structure, process and stability? What are the consequences of changes in the ecosystem: - for people within the ecosystem? - for people and environments beyond the ecosystem? How might ecosystems be both exploited and conserved? Can both exploitation and conservation of ecosystems be managed in a sustainable way?

You will study the following ecosystems: British Woodland Ecosystem (Nap Wood and The National Forest); Savanna Grasslands (Sahel desertification); Tropical Rainforests (Amazonia) Your case study of the Tropical Rainforests will help you answer the following: How is the tropical rainforest structured? How do indigenous people use the tropical rainforest? How are we exploiting the rainforests? What are the effects of deforestation? What does sustainability mean? How can we manage the tropical rainforest in a sustainable manner? GCSE case study questions These questions are from recent exams. They are worth 8 marks at Higher Tier / 5 marks at Foundation Tier. (i) (ii) (iii)

Name and locate an ecosystem you have studied Describe how the ecosystem has been managed for sustainability Explain how successful this management has been

(i) (ii) (iii)

Name and locate an ecosystem you have studied Describe the structure of the ecosystem referring to plants and animals (use diagrams if you wish) Explain how and why people are changing (or have changed) the ecosystem structure

(i) (ii) (iii) (iv)

Name a place where you have studied an ecosystem that is being used in an unsustainable way by people or organisations Name the type of ecosystem you have studied Describe how people or organisations are using the ecosystem Explain why this makes the ecosystem unsustainable

(i) (ii)

Name and locate an ecosystem that is found on land Describe the plants and animals found in this ecosystem

(iii)

Explain how the plants and animals are adapted to the climate of this ecosystem