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Population Decrease Factors

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A look at the factors behind a decrease in the population of barn owls.

The population of the barn owl is found to be under threat in the UK. Two major factors leading to this decline are emphasised - a lack of a food supply and a shortage of suitable nesting places.
From: Bitesize Key Stage 3 Science 3 Higher Paper
First Broadcast : 5 December 2007

Teachers' notes

Age Group : 9-11,11-14

Subject : Biology, Science

Topic : Living things in their environment, Food chains

Keywords : Population decrease, Barn owl, Environment, Habitat,Food supply, Voles,

Notes : Good study on factors affecting the size of animal populations - looks at the influence of habitat change, environmental factors, etc. Should lead to further research - for example, see for more information on the barn owl and its population in the UK.

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