Biological invasion | Wikipedia audio article
Channel: wikipedia tts
Date: 06/06/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Invasive_species


00:04:43 1 Causes
00:05:04 1.1 Species based mechanisms
00:11:41 1.2 Ecosystem-based mechanisms
00:15:57 2 Ecology
00:16:07 2.1 Traits of invaded ecosystems
00:18:12 2.2 Vectors
00:20:48 2.2.1 Within the Aquatic Environment
00:27:05 2.3 Impacts of wildfire and firefighting
00:29:27 3 Effects
00:29:36 3.1 Ecological
00:32:50 3.2 Geomorphological
00:33:35 3.3 Economic
00:34:38 3.3.1 Economic opportunities
00:35:15 3.3.1.1 Benefits
00:39:05 3.3.1.2 Invasivorism
00:41:43 3.3.2 Costs
00:43:28 3.3.3 Plant industry
00:45:13 3.3.4 Aquaculture
00:45:33 3.3.5 Forestry
00:47:22 3.3.6 Tourism and recreation
00:48:27 3.4 Health
00:49:51 3.5 Biodiversity
00:51:14 3.5.1 Genetic pollution
00:53:26 4 Invasive exotic diseases
00:54:44 5 Study and eradication
00:57:22 5.1 Introduced species on islands
00:58:57 5.1.1 New Zealand
01:01:34 5.1.2 South Georgia Island



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SUMMARY
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An invasive species is a species that is not native to a specific location (an introduced species), and that has a tendency to spread to a degree believed to cause damage to the environment, human economy or human health.The criteria for invasive species has been controversial, as widely divergent perceptions exist among researchers as well as concerns with the subjectivity of the term "invasive". Several alternate usages of the term have been proposed. The term as most often used applies to introduced species (also called "non-indigenous" or "non-native") that adversely affect the habitats and bioregions they invade economically, environmentally, or ecologically. Such invasive species may be either plants or animals and may disrupt by dominating a region, wilderness areas, particular habitats, or wildland–urban interface land from loss of natural controls (such as predators or herbivores). This includes non-native invasive plant species labeled as exotic pest plants and invasive exotics growing in native plant communities. It has been used in this sense by government organizations as well as conservation groups such as the International Union for Conservation of Nature (IUCN) and the California Native Plant Society. The European Union defines "Invasive Alien Species" as those that are, firstly, outside their natural distribution area, and secondly, threaten biological diversity.The term is also used by land managers, botanists, researchers, horticulturalists, conservationists, and the public for noxious weeds. The kudzu vine (Pueraria lobata), Andean pampas grass (Cortaderia jubata), and yellow starthistle (Centaurea solstitialis) are examples. An alternate usage broadens the term to include indigenous or "native" species along with non-native species, that have colonized natural areas (p. 136). Deer are an example, considered to be overpopulating their native zones and adjacent suburban gardens, by some in the Northeastern and Pacific Coast regions of the United States. Sometimes the term is used to describe a non-native or introduced species that has become widespread (p. 136). However, not every introduced species has adverse effects on the environment. A nonadverse example is the common goldfish (Carassius auratus), which is found throughout the United States, but rarely achieves high densities (p. 136). Notable examples of invasive species include European rabbits, grey squirrels, domestic cats, carp and ferrets. It has been suggested that genetically modified organisms (GMOs) as a class should be regarded and managed as invasive species.Dispersal and subsequent proliferation of species is not solely an anthropogenic phenomenon. There are many mechanisms by which species from all Kingdoms have been able to travel across continents in short periods of time such as via floating rafts, or on wind currents. Charles Darwin, a B ...