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Extinct and Extirpated Species Backhouse, Francis
2000
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Abstract: Although British Columbia has a more varied flora and fauna than any other province in Canada, we should not take this rich biodiversity for granted. Many species and subspecies are at risk. Worse yet, some have been extirpated from British Columbia (they are no longer found within the province, but still live elsewhere) or have become extinct (they no longer exist anywhere in the world). When a province has nearly 500 species of birds and more than 3000 plant species, the loss of one or two of these may not seem that serious, but there are a number of reasons why every species and subspecies is worthy of conservation. For some people, the most important consideration is the known and potential economic values of plants and animals, which provide us with building materials, medicine, food, pest control, and much more. For others, it is the aesthetic or spiritual significance of living beings. In addition to these values, ecosystems are complex networks of interconnected organisms and the loss of any one component of an ecosystem can affect all the remaining species, often in ways we do not yet understand. Furthermore, certain types of organisms, such as lichens, amphibians, and fish, are valuable bioindicators the health of these species provides us with tangible evidence about the health of the ecosystems in which they live.
 
Backhouse, Francis. 2000. Extinct and Extirpated Species. Ministry of Environment, Lands and Parks. Species At Risk brochure
 
Topic: Species and Ecosystems at Risk
Keywords: species and ecosystems, at risk, extinct, extirpated, species
ISSN:  Scientific Name: Physcomitrium immersum, Ectopistes migratorius, Coregonus sp. 1, Euchloe ausonides, Rangifer tarandus dawsoni, Downingia elegans, Micromitrium tenerum, Gasterosteus sp. 13, Gasterosteus sp. 12, Ericameria bloomeri, Enhydra lutris, Pseudephemerum nitidum, Ranunculus lobbii, Discelium nudum, Coccyzus americanus, Centrocercus urophasianus, Pituophis catenifer catenifer, Abronia umbellata ssp. breviflora
ISBN: 0-7726-7692-5 English Name: Dawson Caribou, Passenger Pigeon, Dragon Lake Whitefish, Rabbitbrush Goldenweed, Sea Otter, Hadley Lake Benthic Stickleback, Lobb's Water-buttercup, Greater Sage-grouse, Large Marble, Gopher Snake, Catenifer Subspecies, Pink Sand-verbena, Common Downingia, Hadley Lake Limnetic Stickleback, Yellow-billed Cuckoo
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