RelativeResourceManager - ANTH/PATH 2010 Plants, Pathogens...

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ANTH/PATH 2010 Plants, Pathogens and People World food crisis Why are plants important? What is your biggest immediate fear?? Inadequate food supply is a serious threat to our safety. Especially important when you consider the following: World population continues to increase especially in underdeveloped countries
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Current fertility – 2.55 children/woman Medium fertility – 2 children/woman - World population took 2-5 million yrs to reach 1 million but only 8 years to go from 4 – 5 million; - 17 yrs to go from 5-6 billion (due to decline in fertility in developing countries) Projected world pop. 9.2 billion by 2050 – by then 59% will live in Asia Future pop. growth trends ( 2007 and 2050): ± Due to declining population growth rates, developed countries will not change between, ~ 1.2 billion, (medium variant). ± Growth in the developing world will slow down - 4.6 to 6.2 billion
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± Growth in 50 least developed countries will more than double - 0.8 to 1.7 billion. - highest growth in the least developed, most populated countries By 2025: ± India will surpass China and the two will account for ~36% of world pop. ± The three least developed countries—Bangladesh, the Democratic Republic of the Congo and Ethiopia will be in the ten most populous countries. ± Eight countries will account for 50% of world population growth: India, Nigeria, Pakistan, the Democratic Republic of the Congo, Ethiopia, USA, Bangladesh and China, Reasons for population growth trends??? What are the consequences of unchecked population growth ?
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This note was uploaded on 11/01/2010 for the course PATH 2010 taught by Professor Walcott during the Fall '10 term at University of Georgia Athens.

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RelativeResourceManager - ANTH/PATH 2010 Plants, Pathogens...

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