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All Creatures, Small and Smaller Français

Logo: Committee on the Status of Endangered Wildlife in Canada (COSEWIC) (CNW Group/Committee on the Status of Endangered Wildlife in Canada)

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Committee on the Status of Endangered Wildlife in Canada

Dec 02, 2019, 14:00 ET

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OTTAWA, Dec. 2, 2019 /CNW/ - Canadians may be surprised by the diversity of little, and little-known, species struggling within the country's borders. Close to half of the 21 wildlife species assessed by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) in November are small and underappreciated.

Shagreen © Annegret Nicolai (CNW Group/Committee on the Status of Endangered Wildlife in Canada)
The rare oxidized peridotite rubble habitat of the rare Puvirnituk Mountain Draba © Benoît Tremblay (CNW Group/Committee on the Status of Endangered Wildlife in Canada)
Coastrange Sculpin (Cultus Lake Population) © Patricia Woodruff (CNW Group/Committee on the Status of Endangered Wildlife in Canada)
Shagreen © Annegret Nicolai (CNW Group/Committee on the Status of Endangered Wildlife in Canada) The rare oxidized peridotite rubble habitat of the rare Puvirnituk Mountain Draba © Benoît Tremblay (CNW Group/Committee on the Status of Endangered Wildlife in Canada) Coastrange Sculpin (Cultus Lake Population) © Patricia Woodruff (CNW Group/Committee on the Status of Endangered Wildlife in Canada)

These species include a globally rare moss whose current Canadian range is a single square metre of limestone cliff in Haida Gwaii on Canada's West Coast; a tiny mustard plant found only in Northern Québec, where the entire known global population consists of 25 individuals; and a goldenrod that occurs in Canada on one small island in Lake Huron.

The future for Slender Yoke-moss "looks dire", said René Belland, Co-chair of the subcommittee tasked with its assessment. The moss was healthy when a sprig was collected in 1994 but today the colony is overgrown by algae and lichen. "Haida Gwaii is a haven for rare and interesting mosses" Belland added, "but this one is the most at risk." It was assessed as Endangered.

Slender Yoke-moss wasn't the only assessed species confined to limited habitat. Newly discovered, Puvirnituq Mountain Draba is a tiny mustard plant found on a pair of hills in Northern Québec, where it lives on geologically peculiar, uncommon orange gravel. Further south, Gillman's Goldenrod occupies a few large sand dunes on Lake Huron's Great Duck Island. Here it is threatened by Glandular Baby's Breath, an invasive relative of the well-known bouquet flower. As Jana Vamosi, Co-chair of the subcommittee tasked with assessing these plants noted, "Species that live in such rare habitats always face greater risks. Some may even be just one big storm away from oblivion." More searching is needed for the remote draba, and it was assessed as Special Concern. The goldenrod was assessed as Endangered.

COSEWIC also considered several small and unassuming animals. The Cultus Lake population of Coastrange Sculpin is a fish found in a single lake near Vancouver and was formerly considered Threatened. However, hotter, drier summers and the recently introduced predatory Smallmouth Bass have changed its prospects for the worse, and it was assessed as Endangered. Two land snails – Toothed Globe and Shagreen, both assessed as Endangered – rely on the last remnants of mature forests near Lake Erie. "Frosts and floods linked to climate change are the main concerns for at least seven rare southern Ontario snails", mollusc expert Dwayne Lepitzki warned, "…and counting."  

"Caribou and whales often come to mind when people think of species at risk", noted John Reynolds, Chair of COSEWIC.  "But many lesser-known Canadian species are also in trouble.  From mustard plants in the North to snails in the South, our job is to consider them all. Each one has its own story."

Further details on all wildlife species assessed at this meeting can be found on the COSEWIC website (www.cosewic.ca).

Next meeting

COSEWIC's next scheduled wildlife species assessment meeting will be held in May 2020.

About COSEWIC

COSEWIC assesses the status of wild species, subspecies, varieties, or other important units of biological diversity, considered to be at risk in Canada. To do so, COSEWIC uses scientific, Aboriginal traditional and community knowledge provided by experts from governments, academia and other organizations. Summaries of assessments are currently available to the public on the COSEWIC website (www.cosewic.ca) and will be submitted to the Federal Minister of the Environment and Climate Change in fall 2020 for listing consideration under the Species at Risk Act (SARA). At that time, the status reports and status appraisal summaries will be publicly available on the Species at Risk Public Registry (https://www.canada.ca/en/environment-climate-change/services/species-risk-public-registry.html).

At its most recent meeting, COSEWIC assessed 21 wildlife species in various COSEWIC risk categories, including 9 Endangered, 5 Threatened, and 6 Special Concern. In addition to these wildlife species that are in COSEWIC risk categories, COSEWIC assessed 1 as Extinct.

COSEWIC comprises members from each provincial and territorial government wildlife agency, four federal entities (Canadian Wildlife Service, Parks Canada Agency, Fisheries and Oceans Canada, and the Canadian Museum of Nature), three Non-government Science Members, and the Co-chairs of the Species Specialist and the Aboriginal Traditional Knowledge Subcommittees.

Definition of COSEWIC terms and status categories:

Wildlife Species: A species, subspecies, variety, or geographically or genetically distinct population of animal, plant or other organism, other than a bacterium or virus, that is wild by nature and is either native to Canada or has extended its range into Canada without human intervention and has been present in Canada for at least 50 years.
Extinct (X): A wildlife species that no longer exists.
Extirpated (XT): A wildlife species that no longer exists in the wild in Canada, but exists elsewhere.
Endangered (E): A wildlife species facing imminent extirpation or extinction.
Threatened (T): A wildlife species that is likely to become Endangered if nothing is done to reverse the factors leading to its extirpation or extinction.
Special Concern (SC): A wildlife species that may become Threatened or Endangered because of a combination of biological characteristics and identified threats.
Not at Risk (NAR): A wildlife species that has been evaluated and found to be not at risk of extinction given the current circumstances.
Data Deficient (DD): A category that applies when the available information is insufficient (a) to resolve a wildlife species' eligibility for assessment or (b) to permit an assessment of the wildlife species' risk of extinction.
Species at Risk: A wildlife species that has been assessed as Extirpated, Endangered, Threatened or Special Concern.

SOURCE Committee on the Status of Endangered Wildlife in Canada

For further information: Dr. John Reynolds, Chair, COSEWIC, Department of Biological Sciences, Simon Fraser University, Telephone: 778-782-5636, [email protected]; For general inquiries: COSEWIC Secretariat, Canadian Wildlife Service, Environment and Climate Change Canada, 351 St. Joseph Blvd, 16th floor, Gatineau QC K1A 0H3, Telephone: 819-938-4125, Fax: 819-938-3984, [email protected], www.cosewic.ca; For inquiries on amphibians and reptiles (Great Basin Spadefoot, Plains Hog-nosed Snake): Dr. Tom Herman, Acadia University, Telephone: 902 670-3535, [email protected]; For inquiries on arthropods (Manitoba Oakworm Moth, Reversed Haploa Moth, Suckley's Cuckoo Bumble Bee): Jennifer M. Heron, BC Ministry of Environment and Climate Change Strategy, Telephone: 604-812-8198, [email protected]; For inquiries on birds (Chestnut-collared Longspur): Dr. Marcel Gahbauer, Canadian Wildlife Service, Telephone: 613-971-2147, [email protected]; For inquiries on freshwater fishes (Coastrange Sculpin (Cultus Lake population), Columbia Sculpin, Rocky Mountain Sculpin, Striped Bass (St. Lawrence River population)): Dr. John R. Post, University of Calgary, Telephone: 403-220-6937, [email protected]; For inquiries on marine mammals (Ringed Seal): Dr. David Lee, Telephone: 514-366-9574, [email protected]; For inquiries on molluscs (Carolina Mantleslug, Shagreen, Toothed Globe): Dr. Dwayne Lepitzki, Telephone: 403-762-0864, [email protected]; For inquiries on mosses (Slender Yoke-moss): Dr. René Belland, University of Alberta, Telephone: 780-492-0801, [email protected]; For inquiries on terrestrial mammals (Western Harvest Mouse): Dr. Chris Johnson, University of Northern BC, Telephone: 250-960-5357, [email protected]; For inquiries on plants (Gillman's Goldenrod, Puvirnituq Mountain Draba): Dr. Jana Vamosi, University of Calgary, Telephone: 403-210-9594, [email protected]; For inquiries on Aboriginal Traditional Knowledge: Roger Gallant, Telephone: 709-638-4343, [email protected]

Related Links

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