what are common traits of invasive species?
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['Fast growth.', 'Rapid reproduction.', 'High dispersal ability.', 'Phenotype plasticity (the ability to alter growth form to suit current conditions)', 'Tolerance of a wide range of environmental conditions (Ecological competence)']
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This has an enormous impact on native ecosystems – so much so that grazing cattle now have the character of an invasive species. After habitat loss, which is caused by clearing and consuming natural resources for human use, invasive species are listed as the second largest threat to biodiversity in North America.
812739
['abiotic factors: moisture, temperature, sunlight, nutrients.', 'biotic factors: competition, mutualism, commensalism, predation/parasitism.']
848196
Bamboo is not an invasive species. Bamboo is a misunderstood plant. ... This is why the focus on invasive species is on its ability to spread by seeds. Bamboo is only expansive on a small localized scale because viable spreading only occurs from the root system.
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['high animal and vegetal biodiversity.', 'evergreen trees.', 'dark and sparse undergrowth interspersed with clearings.', 'scanty litter (organic matter settling on the ground)', 'presence of "strangler" creepers (e.g. Ficus spp.)']
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Believe it or not, after habitat loss, invasive species are the second most significant threat to biodiversity. In a new environment or ecosystem, invasive species become predators and compete with the existing species, to the extent that they are inhibiting the survival of native plants and animals!
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['high animal and vegetal biodiversity.', 'evergreen trees.', 'dark and sparse undergrowth interspersed with clearings.', 'scanty litter (organic matter settling on the ground)', 'presence of “strangler” creepers (e.g. Ficus spp.)']
973092
Invasive species tend to be generalists—they can survive in a variety of conditions and habitats.
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Originally Answered: Are humans considered an invasive species? No, because the term is generally applied only to species that were introduced to an ecosystem and cause harm. Humans were not introduced to any ecosystem. Instead, humans underwent what is called a 'natural range expansion.
603095
Species that have become established in areas outside their natural range are known as "alien species". ... However; when alien species are capable of causing significant harm to our environment, the economy or to society, they are referred to as "invasive alien species".
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For instance, trees have traits such as longevity and strong competitiveness that characterise them as K-strategists. In reproduction, however, trees typically produce thousands of offspring and disperse them widely, traits characteristic of r-strategists.
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Invasive species are often non-native (introduced from other areas) and lack the usual predators that control their population. ... Invasive plants can lower biodiversity so greatly that they create a monotypic community (where the invasive species is the only plant growing).
170972
To be considered invasive, the species must be introduced and cause "economic or environmental harm or harm to human health," according to the National Invasive Species Council . ... They can survive a large variety of habitats or environmental conditions. They outcompete native species for resources like food and water.
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A stable community should have the following characteristics: i) It must be resistant to the invasions by other species. ii) There must not be a lot of variation is the production by each year. iii) It must exhibit resistance to disturbances that occurs occasionally (natural and man-made).
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['Variation. Each individual is slightly different from the next (Genetic)', 'Adaptation. A characteristic that is genetically controlled; increases an organisms chance of survival.', 'Survival. ... ', 'Reproduction. ... ', 'Change over Time.']
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Answer and Explanation: Invasive species can potentially change the diversity index in a number of ways. They may come to an area where they have no natural predators,...
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['Their life cycles are dominated by the gametophyte stage.', 'Their sporophytes are unbranched.', 'They do not have a true vascular tissue containing lignin (although some have specialized tissues for the transport of water)']