Branchinecta coloradensis

occurs (regularly, as a native taxon) in multiple nations

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Global Range: (200,000-2,500,000 square km (about 80,000-1,000,000 square miles)) All states west of and including the Rocky Mountains states, as well as prairie pools in Oklahoma, Alberta, and Saskatchewan; desert pools in Wyoming (Eriksen and Belk, 1999; Rogers et al., 2006; Rogers, 2006).

Habitat Type: Freshwater

Comments: Occurs in a variety of alkaline habitat types, from mountain pools to sage flats, alkali flats and large seasonal lakes between 100 and 3,000 m elevation (Belk and Rogers, 2002).

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

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

Estimated Number of Occurrences: > 300

Comments: Dexter (1953) cites Colorado, New Mexico, Arizona, and Nevada. This species was recently collected in the Idaho National Guard Orchard Training Area, south of Boise, Idaho (Rogers et al., 2006).It occurs in Alberta, California (Glenn, Fresno, Inyo, Lassen, Madoc, Stanislaus Cos.), Idaho (Lincoln, Minidoka Cos.), Oregon (Lake Co.), Utah (Duchesne Co.), Wyoming (Carbon, Fremont Cos.). The map locations plotted in Shasta and Lassen Cos., California, for Branchinecta dissimilis in King et al. (1996) are misidentifications of Branchinecta coloradensis (Belk and Rogers, 2002). Hossack et al. (2010) provided documented records for Montana in Glacier and Teton Cos.

>1,000,000 individuals

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: N5 - Secure

Rounded Global Status Rank: G5 - Secure

Reasons: This species is widespread in western North America.

Global Protection: Unknown whether any occurrences are appropriately protected and managed