The researcher must ensure that the chosen sampling interval does not hide a pattern. Any pattern would threaten randomness.

• Simple Random

• Systematic Samping

• Stratified Sampling

• Cluster Sampling

Species richness/diversity – the number of different species present in an area.

Percentage cover is useful when it is difficult to identify and count individual plants, such as grasses or mosses.

• Pitfall

• Sweep Net

• Water Turbidity

• Open Frame Quadrat

Tags

NGSS.MS-LS2-5

Used to examine species occurrence during surveys, spatial distribution patterns, study daily activity rhythms, and study seasonal occurrence.

It uses a cup to collect!

• Beating Tray

• Interviews

• Pitfall

• Light Traps

To sweep through vegetation to collect random insects not easily seen. It requires skill and takes a lot of labor

• Sweep Net

• Surveys

• Kick Sampling

• Light Traps

A sampling technique for collecting a range of pests and beneficial insects. Uses a stick and cloth to gather insects.

• Quadrat

• Beating Tray

• CMR

• Interviews

Scientists sample the macroinvertebrates by kicking up the gravel on the bed of the river and catching everything that is disturbed in a net

• Kick Sampling

• Light Traps

• CMR

• Point Quadrats

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The basic idea is that you capture a small number of individuals, put a harmless mark on them, and release them back into the population. Conservation and management of natural animal populations

• Water Turbidity

• Beating Tray

• Random Sampling

• CMR

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

the measure of the relative clarity of a liquid

• Systematic Sampling

• Random Sampling

• Pitfall Trap

• Water Turbidity

Normally utilized for gathering information from the respondents through a progression of inquiries and different prompts set by the association leading such experiments.

• Interviews

• Random Sampling

• CMR

• Sweep Nets

commonly used to sample moth fauna, but they also collect other insects, including adult aquatic insects. Used to monitor or directly reduce populations of insects or other arthropods

• Pitfall

• Grid Quadrat

• Light Trap

• Beating Tray