oa CSIR Science Scope - Invasive alien species - an important aspect of global change
|Article Title||Invasive alien species - an important aspect of global change|
|© Publisher:||Council for Scientific and Industrial Research (CSIR)|
|Journal||CSIR Science Scope|
|Author||Brian Van Wilgen|
|Publication Date||Jan 2006|
|Pages||8 - 11|
Invasion of ecosystems by alien species is an important and growing aspect of global change. Up until the late 19th century, mountains, large rivers, deserts and oceans provided formidable barriers to the movement and migration of species. As a result, ecosystems evolved in isolation. Early human migration saw the first intentional introductions of alien species as our ancestors attempted to satisfy physical and social needs.
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