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Population Growth Was Attributable: Since World War II, Greece has been spared the population explosion that has characterized many developing nations. But its low annual population growth was attributable in large part to renewed emigration. The number of emigrants rose from 30,000 in 1955 to 117,000 in 1965. The chief recipients were the United States, Canada, Australia, and especially West Germany.
The growth of populations of predatory ani-als is frequently affected by the growth of the prey. Very often the two follow a cyclical pattern. When the population size of the prey is high, the predators flourish and grow rapidly. As the predator population grows, the number of prey is rapidly diminished. The predators begin to die from a lack of food, and the decrease in the number of predators permits the prey population to increase again. The same kind of cycle is observed among the animal population as a result of epidemics, caused by pathogenic bacteria or liruses.
Population.—San Jose's remarkable population growth received its impetus during World War II, the number of residents increasing from 68,457 in 1940 to 95,280 in 1950. In the next decade the population more than doubled, to 204,196 in 1960, although over 90 percent of this increase resulted from annexations by the city. (The 1962 population was officially estimated at 258,-100.) According to the 1960 federal census, the San Jose standard metropolitan statistical area had 642,315 residents, a rise of 121 percent in 10 years, and representing one of the highest growth rates in the nation.
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