2.4 Data Collection Techniques and Data Analysis

Front

Typically one square metre samples, selected for assessing the local distribution of plants or animals

Back

Quadrat

Front

Organisms that do not move

(plants or rocky shore species like barnacles)

Back

Sedentary

Front

How often a specific species (example : plants) occurs in a sample

Back

Frequency

Front

The cloudiness or haziness of water;

the lower the visibility, the higher the turbidity

Back

Turbidity

Front

The counting of numbers of a specific organism present. (Can be low, with few individuals present - Opposite with higher presence)

Back

Abundance

Front

The selecting of a number of points within an area (random or systematically), determines how many points hit a specific plant species.

Back

Point Sampling

Front

Data collected along a straight line (example : every plant that is touching the line is noted down)

Back

Line Sampling

Front

T-shaped frame used to carry out point sampling. (The bar of the T has ten holes in it)

Back

Point Quadrat

Front

A trap used to sample populations of insects that are active on the ground.

(cup or beaker used to check)

Back

Pitfall Traps

Front

Nets that are mounted on a pole.

(used to collect insects and other invertebrates from long grass)

Back

Sweep Nets