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ENV120 Introducing the Environment: Ecology and Ecosystems - OPEN University

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Open University

Y161_2
5 Hours 

Level
Introductory


Course Description

This unit starts by looking at ecosystems and at some of the living and non-living components they contain. We will then move on to look at the importance of being able to identify and name the living things in an ecosystem, and examine some of the ways in which we can start to record some of the interactions between them. But we must never forget that we ourselves are members of – and manipulators of – the ecosystems we inhabit. We are a part of the biosphere. We were produced by it; we live within it; and we are beginning to change it in ways we don't yet fully understand. The unit will end by introducing the concept of ‘ecological health’, the idea that our growing exploitation of the resources of ecosystems is endangering their ability to support themselves … and us.

Learning Outcomes

By the end of this unit you should be able to:

  • construct a glossary of scientific terms;
  • makes notes on what you read and review your notes.


 

Introduction

  • Introduction Resource
  • This unit starts by looking at ecosystems and at some of the living and non-living components they contain. We will then move on to look at the importance of being able to identify and name the living...


 

1 The science of ecology

  • 1 The science of ecology Resource
  • Let us start by looking at some of the vocabulary involved. To study or understand anything we have to be clear about what the words we use mean. We will need these words to record what we have discovered,...


 

2 Ecosystems

  • 2.1 Where to start? Resource
  • There is a problem with any attempt to take an ecological approach to the biosphere as a whole. It is so incredibly complicated and diverse that it is difficult to know where to begin. The number of living...
  • 2.2 An example ecosystem: the rockpool Resource
  • Let's examine the concept of an ecosystem in more detail using an example that is familiar to many people: a rockpool on a British beach (see Figure 1).
  • 2.3 Black smokers Resource
  • I started with an ecosystem that is familiar and easy to visualise. Most people have seen a rockpool, if only on television. But many ecosystems remain undiscovered, and some of the ones we know about...


 

3 Making notes

  • 3 Making notes Resource
  • This section develops a useful study skill: making notes. The main scientific story then continues in the next section. Notes can be used for a number of things:


 

4 Identification and naming

  • 4 Identification and naming Resource
  • Before we can start to investigate how the organisms in an ecosystem interact with the environment we have to be able to give them names. The naming of living things has always had an important practical...


 

5 Interrelationships

  • 5 Interrelationships Resource
  • It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp...


 

6 Mapping interrelationships

  • 6 Mapping interrelationships Resource
  • Now we have started to identify the components of an ecosystem, living and non-living, we can start to look at ways of describing some of the interrelationships between them. As we have seen, one very...


 

7 Ecological health

  • 7 Ecological health Resource
  • Does all this matter? Why is it important to divide the biosphere into ecosystems and study the interrelationships they contain?


 

8 Summary



 

9 Next steps

  • 9 Next steps Resource
  • After completing this unit you may wish to study another OpenLearn unit, here are a few suggestions:


 

References and Acknowledgements

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Copyright 2007, by the Contributing Authors. Cite/attribute Resource. administrator. (2010, January 28). ENV120 Introducing the Environment: Ecology and Ecosystems - OPEN University. Retrieved July 31, 2010, from Free University Courses OCW Courses OpenCourseWare Freeversity Foundation Web site: http://www.freeversity.org/science-and-mathematics/environmental-science/env120-introducing-the-environment-ecology-and-ecosystems-open-university. This work is licensed under a Creative Commons License Creative Commons License