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United States federal government took the issue under its control and enacted the Endangered Species Act of 1973 to help protect and restore the wolf population. The Endangered Species Act of 1973 restricted the killing of wolves and labeled them as endangered animals in 48 contiguous states. [51]
The agency said its modeling assessed various threats, including human-caused mortality, existing regulatory mechanisms and disease, and found wolves are not at risk of extinction in the western ...
Meanwhile, wolf packs often claim kills made by cougars, which has driven that species back out of valley hunting grounds to their more traditional mountainside territory. [45] The top-down effect of the reintroduction of an apex predator like the wolf on other flora and fauna in an ecosystem is an example of a trophic cascade.
Wolf #10, a male, in the Rose Creek acclimation pen, Yellowstone National Park. Wolf reintroduction involves the reintroduction of a portion of grey wolves in areas where native wolves have been extirpated. More than 30 subspecies of Canis lupus have been recognized, and grey wolves, as colloquially understood, comprise nondomestic/feral ...
For example, the U.S. Forest Service manages about 193 million acres of land and 80 million of these acres need restoration. The current rate of management is 2 million acres per year, meaning it ...
Culling is the deliberate and selective killing of wildlife by governments for various purposes. An example of this is shark culling, in which "shark control" programs in Queensland and New South Wales (in Australia) have killed thousands of sharks, as well as turtles, dolphins, whales, and other marine life.
Population control is the practice of artificially maintaining the size of any population. It simply refers to the act of limiting the size of an animal population so that it remains manageable, as opposed to the act of protecting a species from excessive rates of extinction , which is referred to as conservation biology .
Calls for wildlife conservation in the United States increased in the early 1900s because of the visible decline of several species. [5] One example was the near-extinction of the bison, which used to number in the tens of millions. Similarly, the extinction of the passenger pigeon, which numbered in the billions, caused concern. [6]