Introduced Birds
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Some introduced species are damaging to the ecosystem they are introduced into, others have no negative effect and can, in fact, be beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown, for instance in New Zealand. A list of introduced species is given in a separate article.
The effect of introduced species on natural environments is a controversial subject, and one that has gained much scrutiny by scientists, governments, farmers and others. Not all introduced species are problematic. Those species that spread widely and create significant problems are known as invasive species.
Read more about Introduced Birds: Terminology, Nature of Introductions, Introduced Plants, Introduced Animals, Invasive Exotic Diseases, Introduced Species On Islands, Genetic Pollution
Famous quotes containing the words introduced and/or birds:
“The medium is the message. This is merely to say that the personal and social consequences of any medium—that is, of any extension of ourselves—result from the new scale that is introduced into our affairs by each extension of ourselves, or by any new technology.”
—Marshall McLuhan (1911–1980)
“Calico Pie,
The little Birds fly
Down to the calico tree,
Their wings were blue,
And they sang “Tilly-loo!”
Till away they flew—
And they never came back to me!”
—Edward Lear (1812–1888)