'population will decline' is a valid part of a sentence in written English.
It typically expresses a prediction or expectation about the future of a given population. Example: Given current trends, researchers predict that the population of elephants in Africa will decline over the next decade.
Proportionally, Europe's population will decline, while Africa's will increase.
Once the cats are sterilized, the thinking goes, the feral population will decline as fewer of them give birth.
The overall population is currently 81 million butGermany's population will decline to 65-70 million by 2060.
The 18- to 24-year-old population will decline by 9% by 2020, while there will be massive increases in the older population.
For the first time, both the number and the proportion of non-Hispanic whites, who now account for 66percentt of the population, will decline, starting around 2030.
As water supplies dwindle, "it will mean we don't have so many rice fields, and the population will decline again," she predicted, referring to the snow geese.
The bad news is that this looks likely to slow because working-age populations will decline more rapidly than overall populations.
Its delegates argue there is "insufficient scientific evidence" that polar bear populations will decline by more than half in the coming decades and that trade is "not detrimental to the species".
Fertility rates in the Philippines, Laos, Cambodia, Indonesia and Vietnam exceed 2.1 births per woman — the level that sustains a population — but rates below 1.5 in Singapore and Thailand mean their populations will decline without immigration.
"Current trends indicate that African ape populations will decline by an additional 80percentt in the next 30-40 years," the institute writes on its website.
These contrasting biological systems and goals have created two quite separate research communities, despite addressing the same central question of whether populations will decline to extinction or be rescued through evolution.
