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Published byJack McLaughlin Modified over 9 years ago
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Sampling
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Abiotic Factors (non-living) Biotic Factors (living) Disease Predators Food Light Intensity Temperature Pollution Moisture
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How could we sample… Abiotic factors such as light intensity and moisture? Plants in an area? Insects on the ground?
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How could we catch our own living things to identify? Living things on the ground? Living things which fly? Living things on trees? Living things in streams? Living things in rockpools? Living things in ponds? Living things which come out at night? Think about plants and animals
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Tree Beating
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Kick Netting
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Pond Dipping
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Rock Pooling http://www.bbc.co.uk/learningzone/clips/rockpools/49.html http://www.bbc.co.uk/learningzone/clips/what-do-you-find-in-a-rock-pool/2310.html
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Moth Trapping
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Pitfall Traps
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Quadrat
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Abiotic FactorMeasurementErrorSolution Light IntensityLight meter Shading the meter Make sure your shadow doesn’t land on the meter MoistureMoisture meter Excess moisture on probe Wipe probe between readings Sources of Error
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Organism Sampling technique ErrorSolution Plants Quadrat Unreliable results Throw quadrat randomly. Ground dwelling insects Pitfall Trap Unreliable results Cover trap with rock to stop birds eating sample.
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How can you find out what lives in an area? http://www.bbc.co.uk/nature/order/Lepidoptera#p0 081gf1 http://www.bbc.co.uk/nature/order/Lepidoptera#p0 04hfqp http://www.bbc.co.uk/programmes/p003x6g8
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