The Chiterns Conservation Board said the area now had the highest breeding density of red kites in England and added there could be more than 600 breeding pairs in the area.

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And that was at a time when the congestion arising from development and population density of the area was nothing like what it is today.

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An example of a better approach might be to group retail sites by high, medium and low population density in the surrounding 10 mile area.

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This metropolitan area, anchored by universities and technology-oriented industries, is among the lowest-density regions in the country, with under 1, 700 persons per square mile, slightly less than Charlotte, Nashville and Atlanta.

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We're improving the density of superchargers in well-traveled routes, as well as the overall coverage area.

ENGADGET

To support his idea that density is good, Avent points out that average incomes in the San Francisco Bay Area are very high.

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Power density refers to the energy flow that can be harnessed from a given unit of volume, area or mass.

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Energy density refers to the quantity of energy that can be contained in a given unit of volume, area, or mass.

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They recommend a minimum floor area per bird, in enclosed housing, of 0.026 square metres per kilogram - a maximum stocking density of 40kg per square metre.

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