Sentence examples for level of fertility from inspiring English sources
This is the "replacement level of fertility", the magic number that causes a country's population to slow down and eventually to stabilise.
But this level of fertility, combined with an extremely young population, still puts such countries on a steep and disastrous growth curve.
The age distribution also has shifted as a consequence of this low level of fertility, with more residents of Denmark over age 60 than under age 15.
Suppose that a farm will have a value of $100,000 if it is maintained at a constant level of fertility and yields a yearly income of $10,000 forever but that it can be cultivated ("mined") intensively to yield $12,000 a year for five years at the cost of a much reduced yield thereafter, with a value of $90,000.
Further, the participants' level of fertility did not significantly influence attractiveness ratings.
An important practice that restores some level of fertility is long fallow, however this is no longer practiced due to increased pressure on land for other purposes.
In addition to constant moisture and protection from extremes of heat and cold, they need high levels of fertility and must be divided at least every other year.
Almost half the people in the world (46%) live in countries with low levels of fertility, where women have fewer than 2.1 children on average during their lifetimes.
Largely because of those changes in the south and the west, India's total population should reach replacement levels of fertility (an average of 2.1 children per couple) before 2020.
And they differ a lot.Where China losesHania Zlotnik, the head of the UN's Population Division, divides the world into three categories, according to levels of fertility (see map).
City life hones wits and the most successful animals – like the Hanuman langurs in Jodhpur in northern India – that have migrated from their remote jungles are exploiting man as a wasteful consumer, thieving and charming their way to unprecedented levels of fertility.
