Several problems were thought to be the cause of their population decline.

The most important one was the general population decline in Russia.

The city's overall population decline in that period was 23.4 percent.

In so doing, they are able to set up a lower limit on the rate of their population decline.

This is because of the population decline that has occurred recently.

Many human induced changes are the cause for such a large population decline.

However, the net effect was a population decline, since more left than arrived.

The three risk categories are based in large part on the rate of a species' population decline over the last 10 years.

This may cause a population decline or even local extinction.

Of all the Regions, it alone showed a positive population decline over the past half century.

But, to say it will not cause starvation and population decline.

Some, such as Russia, are even in a process of long-term population decline.

Emigration was a major cause of population decline, especially in the 1940s.

Much of rural America has seen steady population decline since 1920.

This led to a population decline to less than 2 million seals.

The 1872 census indicates a population decline in the town.

Because of population decline, there is no longer any public school in Waterproof.

There are two major factors that could have influenced this population decline.

The population decline has led to proposals to return the land to its natural state and under public ownership.

Towns said that's why the census shows they had a population decline.

The closure of the factory in 1968 led to a large population decline.

The oil production would decrease by the mid-1920s, resulting in the population decline to about 600.

More data are needed to understand the population decline.

Population decline, of course, was not the only factor which could affect wages.

In fact, if they keep it up, there's a very good chance there could be a huge population decline."