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Humans have introduced more different species to new environments than any single document can record. This list is generally for established species with truly wild populations— not kept domestically, that have been seen numerous times, and have breeding populations. While most introduced species can cause a negative impact to new ...
This is a list of bird species confirmed in Canada. Unless otherwise noted, the list is that of Bird Checklists of the World as of July 2022. [2] Of the 704 species listed here, 236 are accidental. Twelve species were introduced to North America or directly to Canada, three species are extinct, and three (possibly four) have been extirpated ...
This list of introduced bird species includes all the species of bird introduced to an area without regard to that territory being or not being their native area of occupation or the success of that re-introduction or introduction to the area. This practice has been harmful in many areas, although some introductions are made with the aim of ...
This is a list of invasive species in North America.A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i.e., is not a native species), becomes capable of establishing a breeding population in the new location without further intervention by humans, and becomes a pest in the new location ...
Several species of non-native ascidians with known negative impacts to aquaculture operations have been introduced and established to both the Pacific and Atlantic coasts of Canada. These non-native sea squirt species include: Ascidiella aspersa (the European sea squirt), Botrylloides violaceus (the violet tunicate), Botryllus schlosseri (the ...
This is a list of mammal species recorded in the wild in Newfoundland, the island portion of the Canadian province of Newfoundland and Labrador.Only 14 known species (and one extinct species) are or were native to the island; this list is divided into native species and species introduced to the island since discovery by Europeans and colonization in the late 15th and early 16th centuries.
The fauna of Canada consist of approximately 200 mammal species, over 460 native bird species, 43 amphibian species, 43 reptile species, and 1,200 fish species. [ 1 ] [ 2 ] The biology survey of Canada cites that there are approximately 55,000 species of insects and 11,000 species of mites and spiders.
This category is for list articles about introduced species This category is for articles about introduced species . Please do not add this category to general articles about single organisms, unless it is an article specifically about that species' introduction outside of its native range.