investigating populations

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habitat
the place where an organism nornaly lives which is characterised by physical conditions and the species of other organisms present
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random sampling
is used to avoid bias in collecting data. whitch ensures data is valid
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systematic sampling
samples taken at regular intervals within a set sampling area
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abundence
counting the number of individuals of a species in a given space
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frequency
the likelyhood of a particular species occuring in a quadrat. it gives a quick ides of the species present and there general distribution with an area
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persentage cover
an estimate of the area within a quadrat that a particular species covers
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mark relase capture
known number animals captured, marked and released then sometime later a given number of individuals are collected randomy and mark released
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Card 2

Front

is used to avoid bias in collecting data. whitch ensures data is valid

Back

random sampling

Card 3

Front

samples taken at regular intervals within a set sampling area

Back

Preview of the back of card 3

Card 4

Front

counting the number of individuals of a species in a given space

Back

Preview of the back of card 4

Card 5

Front

the likelyhood of a particular species occuring in a quadrat. it gives a quick ides of the species present and there general distribution with an area

Back

Preview of the back of card 5
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