Species Profile

Red Knot roselaari subspecies

Scientific Name: Calidris canutus roselaari
Taxonomy Group: Birds
COSEWIC Range: Yukon, British Columbia
COSEWIC Assessment Date and Status Change: November 2020
COSEWIC Status: Threatened
COSEWIC Status Criteria: A2bc+4bc
COSEWIC Reason for Designation: This medium-sized shorebird breeds in northwestern Alaska and on Wrangel Island in the eastern Russian Arctic, overwintering on the Pacific coast of the Americas. The global population numbers about 22,000 mature individuals, most of which likely migrate through Canadian airspace, although only small numbers are recorded annually on coastal islands of British Columbia on spring migration and in winter. Migration and winter counts indicate a long-term population decline of 39-64% over three generations, although trend estimates have low precision. Habitat quality is declining in areas used throughout the year. Population and habitat declines are anticipated to continue. Individuals congregate at key sites on migration in Alaska, Washington, and California, making them vulnerable to localized threats. Threats include disturbance from recreational activities, coastal development, aquaculture, and shoreline stabilization, as well as over-fishing of grunion (small fish whose eggs are an important food source) in coastal Mexico. Exposure to storms and severe weather during long migratory flights may increase with climate change.
COSEWIC History of Status Designation: The species 'roselaari type' was considered a single unit (which included three groups) and designated Threatened in April 2007. Based on the Designatable Unit report on Red Knot (COSEWIC 2019), a new population structure was proposed and accepted by COSEWIC; two groups previously assessed under the ‘roselaari type’ were transferred to the rufa subspecies (Northeastern South America wintering population, Southeastern USA / Gulf of Mexico / Caribbean wintering population). The remaining unit now includes only the roselaari subspecies. The roselaari subspecies was designated Threatened in November 2020.
SARA Status: No schedule, No Status
Date of Listing (yyyy-mm-dd): 2010-02-23

No schedule - No Status

Individuals of this species may be protected under Schedule 1 under another name; for more information see Schedule 1, the A-Z Species List, or if applicable, the Related Species table below.

Please note that this information is provided for general information purposes only. For the most up to date and accurate list of species listed under the Species at Risk Act, please see the Justice Laws Website.

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Related Species

Species COSEWIC
Status
SARA
Status
Red Knot roselaari type Non-active Threatened

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Protection

Federal Protection

Provincial and Territorial Protection

To know if this species is protected by provincial or territorial laws, consult the provinces' and territories' websites.

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Documents

PLEASE NOTE: Not all COSEWIC reports are currently available on the SARA Public Registry. Most of the reports not yet available are status reports for species assessed by COSEWIC prior to May 2002. Other COSEWIC reports not yet available may include those species assessed as Extinct, Data Deficient or Not at Risk. In the meantime, they are available on request from the COSEWIC Secretariat.

5 record(s) found.

COSEWIC Status Reports

Response Statements

  • Response Statement - Red Knot roselaari subspecies (2022-01-10)

    This medium-sized shorebird breeds in northwestern Alaska and on Wrangel Island in the eastern Russian Arctic, overwintering on the Pacific coast of the Americas. The global population numbers about 22,000 mature individuals, most of which likely migrate through Canadian airspace, although only small numbers are recorded annually on coastal islands of British Columbia on spring migration and in winter. Migration and winter counts indicate a long-term population decline of 39-64% over three generations, although trend estimates have low precision. Habitat quality is declining in areas used throughout the year. Population and habitat declines are anticipated to continue. Individuals congregate at key sites on migration in Alaska, Washington, and California, making them vulnerable to localized threats. Threats include disturbance from recreational activities, coastal development, aquaculture, and shoreline stabilization, as well as over-fishing of grunion (small fish whose eggs are an important food source) in coastal Mexico. Exposure to storms and severe weather during long migratory flights may increase with climate change.

COSEWIC Annual Reports

  • COSEWIC Annual Report 2020 to 2021 (2021-10-12)

    Over the past year COSEWIC assessed a total of 66 wildlife species, of which 4 were assigned a status of Not at Risk. Of these 66, COSEWIC re-examined the status of 41 wildlife species; of these, 80% were reassessed at the same or lower level of risk. To date and with the submission of this report, COSEWIC’s assessments now include 826 wildlife species in various risk categories including 369 Endangered, 196 Threatened, 239 Special Concern, and 22 Extirpated (i.e. no longer found in the wild in Canada). In addition, 19 wildlife species have been assessed as Extinct, 62 wildlife species have been designated as Data Deficient, and 202 have been assessed as Not at Risk.

Permits and Related Agreements

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