Deplete Quotes (2 quotes)
By the mid-1950s manatees were already scarce, and monk seals, once common as far north as Galveston, were gone. By the end of the 20th century, up to 90 percent of the sharks, tuna, swordfish, marlins, groupers, turtles, whales, and many other large creatures that prospered in the Gulf for millions of years had been depleted by overfishing.
The key to understanding overpopulation is not population density but the numbers of people in an area relative to its resources and the capacity of the environment to sustain human activities; that is, to the areas carrying capacity. When is an area overpopulated? When its population cant be maintained without rapidly depleting nonrenewable resources . By this standard, the entire planet and virtually every nation is already vastly overpopulated.