Demographic transition, Biology

Demographic Transition

As we saw earlier, death rates and birth rates have been nearly equal throughout much of human history. However, in Western Europe, death rates began to fall in the 17th and 18th centuries but birth rates were still high therefore the population increased. However, birth rates also began to decline and today birth rates and death rates are nearly equal in Europe. This decline in death rate followed by decline in birth rate leading to low population growth is called demographic transition. These declines in birth and death rates were generally concurrent with economic development in European nations. Thus this transition also refers to changes in economics from primarily agrarian to a more urban, commercial and eventually industrial system. An understanding of demographic transition is useful to see clearly what has brought about the rapid growth of world population especially in the last 50 years.

Posted Date: 1/21/2013 1:44:17 AM | Location : United States

Related Discussions:- Demographic transition, Assignment Help, Ask Question on Demographic transition, Get Answer, Expert's Help, Demographic transition Discussions

Write discussion on Demographic transition
Your posts are moderated
Related Questions
Anomalies Related to Oral Cavity   Under these anomalies we will briefly discuss the cleft lip and cleft palate.  You must have seen and/or nursed a baby born with a cut on

Q. Why some trees lose their green color in the autumn? In autumn nights longer and days become shorter thus there is a reduction of the photosynthesis rate and some plants pre

Q. What is ST segment depression at rest? ST- segment depression has become severe, that is, 3 to 4mm or more in vigorous asymptomatic subjects. If the patient is known to have

THEOR Y OF EPIGENESIS - It was propounded by C. F. Wolff and supported by Von Baer. According to it, the egg contains the substances which are required in the formation

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Q. What is the evolutionary importance of the emergence of seeds in the plant kingdom? The evolutionary significance of the seed is related to the plant capability of distant c

Q. What is a goiter? What is endemic goiter? How this problem is socially solved? Goiter is the abnormal enlargement of the thyroid gland the goiter appears as a tumor in the a

In what forms are nitrogenous wastes excreted in birds, humans and aquatic turtles respectively ? Why so, describe?

The passive transport of molecules across a membrane does not require an input of metabolic energy. Rate of the diffusion or transport is proportional to the concentration gradient

Define Functions of Vitamin D? Vitamin D is required to maintain normal blood levels of calcium and phosphate, which are in turn needed for the normal mineralization of bone, m