Ecological sampling using a quadrat
I can use a quadrat to sample populations of organisms.
Ecological sampling using a quadrat
I can use a quadrat to sample populations of organisms.
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Lesson details
Key learning points
- Quadrats are square frames which can be used to sample plants or slow-moving animals.
- There are different measurements that you can take using a quadrat depending on what you are investigating.
- Most sampling using quadrats is random to avoid bias in your results.
- Classification keys can be used to identify different species.
- The results of ecological sampling can be used to inform conservation and preservation efforts.
Keywords
Quadrat - A quadrat is a square frame which is used to sample populations of plants or slow-moving animals.
Species - A species is a group of organisms that are able to reproduce with each other to produce offspring that are also able to reproduce.
Bias - Bias is when a person carries out an investigation and affects the outcome
Common misconception
Pupils often associate the use of quadrats to survey plants in one type of habitat. Pupils do not consider how they can be used to sample sedentary animals e.g. barnacles / limpets on a rocky shore.
During the slide deck there is reference to how quadrats can be used to sample plants and sedentary animals in different habitats.
To help you plan your year 8 science lesson on: Ecological sampling using a quadrat, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 8 science lesson on: Ecological sampling using a quadrat, download all teaching resources for free and adapt to suit your pupils' needs.
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Starter quiz
6 Questions
help to reduce water loss
help to shade from bright sunlight
helps to capture sunlight which is used to make food
helps to move through water
puts predators off eating it as this is a warning signal
provides shelter and protection for offspring