Distribution and abundance of species

Students practise sampling methods which can be used in the field (supports OCR Unit 14 and AQA Unit 16).

This resource contains:

• Simulating investigations of the distribution and abundance of non-mobile species - PRACTICAL SHEET 
• Simulating the mark–release–recapture technique (Lincoln Index) for estimating population sizes of mobile species. Modelling a sampling procedure to investigate the abundance of mobile animal species that mix freely with each other in the field - PRACTICAL SHEET 

Download Distribution and abundance of species (PDF)

Support materials

A model of a habitat and the distribution of a non-mobile species can be constructed using simulation sheets printed from the Excel spreadsheets

• Distribution of dandelions (Excel)

• Distribution of dandelions (less dense) (Excel)

Three other useful Excel spreadsheets: 

• Distribution of daisies (Excel)

• Distribution of daisies and dandelions (Excel)

• Distribution of brown seaweeds (Excel)