population density

So comparing those lines to the experience in a rich suburb with low population density seems more than a tad unfair.

As many as five adults have been caught in a trap simultaneously at times when the population density was high.

Other things being equal, cannibalism involving the young might be expected to be greater at times of high population density.

This indicates that the population density from 1967 to 1969 may have been higher than from 1948 to 1953.

The population density of the Union is 25.6 to the square mile.

Our population density is fifteen hundred to the square mile.