Definitions 1
Define Frequency.
How often a specific species occurs in a sample.
Define Population Size.
The number of individuals in a population.
What are Quadrats used to sample?
Slow or non-moving organisms.
What are Sweep Nets used to sample?
Populations of insects and other invertebrates from vegetation.
In Random Sampling, how many sections of the area should be sampled?
10% of the sections.
Define Quadrat.
Typically one square meter samples, selected for assessing the local distribution of plants or animals.
Define Population Density.
The number of individuals of a species living in a specific unit of area.
What are Pitfall Traps used to sample?
Populations of small organisms.
What are Light Traps used to sample?
Populations of certain insects.
Nocturnal moths.
What organisms are sampled in Capture-Mark-Recapture sampling?
Animal populations.
Where estimating the size of a population where catching all the individuals is not practical.
Define Interview.
When people meet face to face, with one person asking questions and another answering them.
Define Open Questions.
Questions that allow the respondent to give a free-form answer with opinions and detailed information.
What is Kick Sampling used to sample?
Populations of invertebrates that live on the bottom of rivers or streams.
What are the two types of Quadrats?
Area and Point Quadrats.
Varies.
Define Closed Questions.
Answers where the respondent can select an answer from tick-able boxes.
Yes/No, True/False, Multiple Choice, Set answer questions.
Define Abundance.
Calculating abundance means continuing the number of a specific organism present.
What are Beating Trays used to sample?
Populations of insects that are pests.
What is the first thing you should do when making a Gridded Quadrat sample.
Label the X and Y axes.
What are Transect Lines?
Path/Area of sampling.
Define Random Sampling.
Samples based on drawing names/numbers out of a hat or using a computer program to give a random list.
Define Systematic Sampling.
Choosing a sample based on regular intervals rather than random selection.
What device is used to measure Water Turbidity?
A Secchi Disc.
What is Water Turbidity used to sample?
The amount of light scattered by material in the water.
Give an example of a Closed Question.
Varies.