Sweltsa borealis

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: (>2,500,000 square km (greater than 1,000,000 square miles)) It is widespread in the Coast, Cascade, Rocky, and Sierra Nevada Mountains, northward to Alaska and Yukon (Stewart and Oswood, 2006).

Habitat Type: Freshwater

Comments: It is common in creeks and small rivers (Gaufin et al., 1972).

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: Gaufin et al. (1972) cite Montana distribution as Carbon, Cascade, Flathead, Gallatin, Glacier, Granite, Judith Basin, Lake, Lewis and Clark, Lincoln, Missoula, Park, Ravalli, and Sweet Grass Cos. Baumann (1973) recorded it from Utah. Call and Baumann (2002) cite southern Utah distribution as Aquarius Plateau, Pine Valley Mountains, Sanpitch Mountains, Sevier Plateau, Tushar Mountains, and LaSal Mountains. Newell et al. (2006) report it from Glacier National Park and the Flathead River basin in western Montana. In California, Jewett (1960) cited Marin and Mariposa Cos. It is widespread and abundant in Mount Rainier National Park, Washington (Kondratieff and Lechleitner, 2002).

Adults emerge from April through October (Gaufin et al., 1972).

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 80
Species With Barcodes: 1

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: N5 - Secure

Rounded Global Status Rank: G5 - Secure

Reasons: It is widespread in the Coast, Cascade, Rocky, and Sierra Nevada Mountains, northward to Alaska and Yukon.