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To: koan who wrote (241299)	1/4/2014 8:22:11 PM
From: T L Comiskey	Respond to of 541141

re..saved en.wikipedia.org Population Overshoot..................... Before Europeans arrived in North America, prairies served as habitats to greater prairie chickens. In Illinois alone their numbers plummeted from over 100 million in 1900 to about 50 in 1990. These declines in population were the result of hunting and habitat destruction, but the random consequences have been a great loss in species diversity. DNA analysis comparing the birds from 1990 and mid-century shows a steep genetic decline in recent decades. The greater prairie chicken is currently experiencing low reproductive success. [13] During the Toba eruption, bottlenecks had existed amongst humans, chimpanzees, gorillas, cheetahs, rhesus macaques, orangutans and tigers.