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Explore how pollutants and pesticides can detrimentally affect the existence of natural populations. Learn about the mechanisms of population decline and the greatest threats posed by toxic chemicals in our environment.
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Pollutants Asha Wilson
The Air, the Water, the Sun, the Dust, Plants and Animals, and the Chemicals and Metals of our World… They support life. They make it beautiful. But, as wonderful as they are…. They can also affect the existence of NATURAL POPULATIONS.
Pollutants and Pesticides affect Natural Populations • Toxic chemicals added continuously to natural environments can cause an increase in mortality rates.
Three Main Mechanisms of Population Decline • 1) Direct contact • 2) Indirect contact 3) Atmospheric pollutants
The Greatest Threat of Pollutants and Pesticides • (DDT/DDE) dichlor-diphenyl-trichlor-ethane • Organochlorine (HEOD) • Carbamate insecticide • Combustion of coal • (CFCs) chloroflurocarbons