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Overpopulation or overabundance is a state in which the population of a species is larger than the carrying capacity of its environment.This may be caused by increased birth rates, lowered mortality rates, reduced predation or large scale migration, leading to an overabundant species and other animals in the ecosystem competing for food, space, and resources.
Population Control: Real Costs, Illusory Benefits is a nonfiction book by Steven W. Mosher, president of the Population Research Institute, first published in 2008. Population Control is a detailed exposition on the global effort to combat overpopulation , arguing that not only population control is immoral in many cases, but that ...
Media commentary interpreted this as suggesting overconsumption represents a greater environmental threat as an overpopulation scenario may never occur. [68] [233] Some human population planning strategies advocated by proponents of overpopulation are controversial for ethical reasons.
In the 1980s, tension grew between population planning advocates and women's health activists who advanced women's reproductive rights as part of a human rights-based approach. [31] Growing opposition to the narrow population planning focus led to a significant change in population planning policies in the early 1990s.
In environmental science, a population "overshoots" its local carrying capacity — the capacity of the biome to feed and sustain that population — when that population has not only begun to outstrip its food supply in excess of regeneration, but actually shot past that point, setting up a potentially catastrophic crash of that feeder population once its food populations have been consumed ...
Graph of human population from 10,000 BC to 2017 AD. It shows the extremely rapid growth in the world population since the eighteenth century. The Population Bomb was written at the suggestion of David Brower, the executive director of the environmentalist Sierra Club, and Ian Ballantine of Ballantine Books following various public appearances Ehrlich had made regarding population issues and ...
There’s no reason, data experts say, to assume your federal data is any safer than records held by health care companies and banks. Here, then, are some expert tips on the federal records that ...
Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation. The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [ 1 ]