Status of the Northern Riffleshell, Epioblasma torulosa rangiana (Bivalvia: Unionidae), in Ontario and Canada
The Northern Riffleshell freshwater mussel has declined dramatically in North America over the last 100 yr. It now occupies only 5% of its former range and is recognized as an endangered species in the U.S. and at risk in Canada. Factors contributing to the population decline include introduction of...
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Veröffentlicht in: | Canadian field-naturalist 2000, Vol.114 (2), p.224-235 |
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Sprache: | eng |
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