|Scientific Name:||Gila atraria (Girard, 1856)|
Siboma atraria Girard, 1856
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Smith, K. & Darwall, W.R.T.|
|Facilitator/Compiler(s):||Hammerson, G.A. & Ormes, M.|
Listed as Least Concern in view of the large extent of occurrence, large number of subpopulations, large population size, apparently stable trend, and lack of major threats.
|Range Description:||Range includes the ancient Lake Bonneville drainage basin in southeastern Idaho and Utah, (Andersen and Deacon 1996) and the upper Snake River system above Shoshone Falls, Wyoming and Idaho (Page and Burr 2011). The species has been introduced into eastern Nevada, upper Missouri River basin (Montana), and Colorado River drainage (Wyoming and Utah) (Page and Burr 1991).|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is represented by a large number of occurrences (subpopulations).|
Total adult population size is unknown but presumably exceeds 10,000. This species is locally common (Page and Burr 20110.
Some native populations have been much reduced, whereas many introduced populations are thriving (Sigler and Sigler 1996).
Trend over the past 10 years or three generations is uncertain but likely relatively stable.
|Current Population Trend:||Stable|
|Habitat and Ecology:||This species is found in a wide variety of habitats: lakes, reservoirs, and ponds; quiet pools of headwaters, creeks, small to medium rivers, springs, and irrigation ditches; often it occurs in areas with dense aquatic vegetation over mud or sand (Lee et al. 1980, Page and Burr 2011). It is tolerant of a wide range of chemical and physical conditions (Sigler and Miller 1963). During spawning, eggs are cast over various types of substrate in shallow water (0.6 meters or less) (Simpson and Wallace 1982).|
|Movement patterns:||Not a Migrant|
|Major Threat(s):||No major threats are known.|
|Conservation Actions:||Currently, this species is of relatively low conservation concern and does not require significant additional protection or major management, monitoring, or research action.|
|Citation:||NatureServe. 2013. Gila atraria. The IUCN Red List of Threatened Species 2013: e.T202104A18230531.Downloaded on 23 May 2018.|
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