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What is an alien species? | 水產百科網

What is an alien species?

What is an alien species?

On a global basis, alien species are listed among the greatest threats against biodiversity, but what is an alien species?

Alien species are species that occur outside their ​natural range and dispersal potential. Alien species are spread by human activity, intended or unintended, to new areas.

Alien species do also include taxa below species level such as subspecies, varieties, cultivars and hybrids. The term alien species includes all life stages that might survive and subsequently reproduce, i.e. seeds, eggs, spores or other biological material.

Regionally alien species

The risk assessment covers species that are alien to Norway. In addition, the possibility exists to risk assess regionally alien species.

Regionally alien species are species native to Norway, that have been introduced to novel areas within Norway by humans after year 1800. Occurrences in the species’ natural range (extent of occ...

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What is an alien species? | 水產百科網
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Invasive alien species | 水產百科網
Invasive alien species ... Invasive alien species are species that are introduced, accidentally or intentionally, outside of their natural geographic range and that ... Read More
Invasive species | 水產百科網
What is an Invasive Alien Species? ... An alien species is a species introduced outside its natural past or present distribution; if this species becomes problematic, it ... Read More
What are Invasive Alien Species? | 水產百科網
2021年5月19日 — Invasive alien species are plants, animals, pathogens and other organisms that are non-native to an ecosystem, and which may cause ... Read More
Invasive Alien Species | 水產百科網
2020年6月24日 — Invasive Alien Species ... Invasive Alien Species (IAS) are animals and plants that are introduced accidentally or deliberately into a natural ... Read More
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This is a list of alleged extraterrestrial beings that have been reported in close encounters, claimed or speculated to be associated with Unidentified flying objects (UFOs) (not to be confused with the meaning of the term 'alien species' in the biologica Read More
Invasive species | 水產百科網
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