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In biology, overabundant species refers to an excessive number of individuals [1] and occurs when the normal population density has been exceeded. Increase in animal populations is influenced by a variety of factors, some of which include habitat destruction or augmentation by human activity, the introduction of invasive species and the reintroduction of threatened species to protected reserves.
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.
In reality, an animal that is not native to an environment may have advantages over the native ones, such being unsuitable for the local predators. If left uncontrolled, such an animal can quickly overpopulate and ultimately destroy its environment. Examples of animal overpopulation caused by introduction of a foreign species abound.
In some countries there is an overpopulation of pets such as cats, dogs, and exotic animals.In the United States, six to eight million animals are brought to shelters each year, of which an estimated three to four million are subsequently euthanized, including 2.7 million considered healthy and adoptable.
The “no kill” KC Pet Project is being forced to euthanize more than 10 dogs a day. | Opinion
Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, [2] introduction of invasive species, ecosystem nutrient depletion, water and noise pollution are some examples. Loss of habitat can be preceded by an initial habitat fragmentation.
Blame lingering pandemic-era restrictions that make it harder for people to find a dog or cat they'd like to adopt.
Various humans activities (e.g. hunting, farming, fishing, industrialization, and urbanization) all impact various animal populations. Population control may involve culling, translocation, or manipulation of the reproductive capability. The growth of a population may be limited by environmental factors such as food supply or predation. The ...