Overview

Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Global Range: Reported from Minn., N.Dak., and adjacent s-central Canada.

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Ecology

Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 6 - 20

Comments: One report from Minnesota (Ownbey & Morley, Atlas, 1991); 'S1' rank in Saskatchewan; uncertain status in Manitoba; also reported for North Dakota.

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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: N1 - Critically Imperiled

United States

Rounded National Status Rank: N2 - Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: T2 - Imperiled

Reasons: Small range, with few occurrences, in upper Midwestern U.S. and adjacent south-central Canada; further information needed.

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