Response Statement - Round Hickorynut
The Canadian population of this species has declined by 75-95% over the last 10 years, with an estimated 99% decline over the last 30 years. Populations in the Grand and Thames rivers are extirpated and populations in the Sydenham River and Lake St. Clair have declined to very low levels. Losses and declines are due to the combined effects of pollution from agriculture and residential runoff, and the impacts of invasive species like the Zebra Mussel.
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- "Response Statement - Round Hickorynut" (2013-12-18) (PDF format, 2.98 KB)
Wildlife Management and Regulatory Affairs
Canadian Wildlife Service
351 Saint-Joseph Boulevard
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