Biotic factors


  1. Students should be able to explain how a change in a biotic factor might affect a given community given appropriate data or context.
  2. Biotic (living) factors which can affect a community are:
    • availability of food
    • new predators arriving
    • new pathogens
    • one species outcompeting another so the numbers are no longer sufficient to breed.
  3. Students should be able to extract and interpret information from charts, graphs and tables relating to the effect of biotic factors on organisms within a community.

Recognise/draw/interpret diagrams. Translate from data to a representation with a model. Use models in explanations, or match features of a model to the data from experiments or observations that the model describes or explains. Make predictions or calculate quantities based on the model or show its limitations. Give examples of ways in which a model can be tested by observation or experiment.

Construct and interpret frequency tables and diagrams, bar charts and histograms,

Translate information between graphical and numeric form