7.2.4

Assessing Ecosystems

Test yourself

Assessing Ecosystems

Population sizes are interesting to ecologists. Experimental tools for looking at ecosystems and their populations include:

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Quadrats

  • Quadrats are square frames that can be used to estimate population sizes.
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Transects

  • Transects can be used to investigate the effect of a factor on the distribution of a species.
  • A transect line is a piece of tape that is stretched across the habitat of interest.
  • Quadrats are placed at regular intervals along the transect line.

Jump to other topics

1Cell Biology

1.1What's in Cells?

1.2Cell Division

1.3Transport in Cells

2Organisation

2.1Principles of Organisation

2.2Enzymes

2.3Circulatory System

2.4Non-Communicable Diseases

2.5Plant Tissues, Organs & Systems

3Infection & Response

4Bioenergetics

5Homeostasis & Response

5.1Homeostasis

5.2The Human Nervous System

5.3Hormonal Coordination in Humans

5.4Plant Hormones

6Inheritance, Variation & Evolution

7Ecology

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