Question

Comment upon the trend of popation distribution

Answer 1

As in other parts of Africa, the population of Senegal has been increasing rapidly over the past several decades. This chapter traces the growth and distribution of the population of Senegal over the last 30 years and discusses briefly both interregional and international migration. From administrative counts, which probably underestimate the true size of the population, it is estimated that Senegal's population increased from about 1.1 million in 1904 to 2.3 million in 1958, or at an annual rate of 1.3 percent over the period 1904-1958 (Becker and Mbodji, 1994). Estimates of the total population based on data from the 1960-1961 Demographic Survey [1], the 1970-1971 National Demographic Survey [2], as well as from the 1976 [17] and 1988 [18] censuses, allow us to analyze this growth at both the national and regional levels.

Answer 2

DENSITY AND DISTRIBUTION OF POPULATION

Population distribution refers to the way in which the members of a population or of a specified subgroup of a population (for example, defined by age, sex, or ethnic status) are dispersed physically in a specific area. Population density provides a comparative measure of distribution with respect to a geographic area that usually is expressed as persons per square kilometer (or per square mile) of land. More specialized density measures also may be defined, such as population per unit of cultivatable land.

The Distribution of the World's Population

Population distribution on a global scale is highly uneven, with the greater part of the world's population living in the northern hemisphere and in countries in the less developed world.

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Less than 10 percent of the world's population lives in the southern hemisphere, and 80 percent lives between 20 degrees and 60 degrees north latitude. Table 1 shows the growth of the world population since 1950 and its changing distribution projected to 2050. By the year 2000 approximately 74 percent of the world's population lived in Africa and Asia (excluding the Russian Federation) on only 40 percent of the world's land area. Europe accounted for 12 percent of global population, with a further 8.6 percent in Latin America and the Caribbean, 5.2 percent in North America