Sampling. Abiotic Factors (non-living) Biotic Factors (living) Disease Predators Food Light...

Sampling

Abiotic Factors(non-living)

Biotic Factors(living)

Disease

Predators

Food

Light IntensityTemperature

PollutionMoisture

How could we sample…Abiotic factors such as light intensity and moisture?

Plants in an area? Insects on the ground?

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

Tree Beating

Kick Netting

Pond Dipping

Rock Poolinghttp://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

Moth Trapping

Pitfall Traps

Quadrat

Abiotic Factor Measurement Error Solution

Light Intensity Light meter Shading the meter

Make sure your shadow doesn’t

land on the meter

Moisture Moisture meter Excess moisture on probe

Wipe probe between readings

Sources of Error

Sources of Error

Organism Sampling technique Error Solution

Plants

Quadrat

Unreliable results

Throw quadrat randomly.

Ground dwelling insects

Pitfall Trap

Unreliable results

Cover trap with rock to stop birds eating

sample.

How can you find out what lives in an area?

http://www.bbc.co.uk/nature/order/Lepidoptera#p0081gf1

http://www.bbc.co.uk/nature/order/Lepidoptera#p004hfqp

http://www.bbc.co.uk/programmes/p003x6g8