The Upper Arkansas-John Martin Reservoir Subbasin
Landscape Summaries > Upper Arkansas-John Martin Reservoir Subbasin Profile
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| Wetland Mapping Summary | |
| Area of mapped wetlands | 56,686 acres |
| Percent of basin mapped as wetlands | 2% |
| Wetland Area by Type (acres) | ||
| Freshwater Herbaceous | 19,645 | 35% |
| Freshwater Shrub | 13,255 | 23% |
| Freshwater Forested | 2,539 | 4% |
| Ponds | 1,658 | 3% |
| Lakes | 14,796 | 26% |
| Rivers | 3,962 | 7% |
| Other | 832 | 1% |
| Wetland Area Mapped with Modifiers (acres) | ||
| Excavated | 0 | < 1% |
| Dammed | 0 | < 1% |
| Ditched/Drained | 0 | < 1% |
| Farmed | 0 | < 1% |
| Modified by Beaver | 0 | < 1% |
| Wetland Area by Stressor Class (acres) | ||
| No Stress | 350,691 | 14% |
| Low Stress | 978,711 | 40% |
| Moderate Stress | 434,229 | 18% |
| High Stress | 408,500 | 17% |
| Severe Stress | 283,231 | 12% |
| Total Area and Elevation Range | ||
| Total Area | 2,455,340 acres | 9,937 sq km |
| Maximum Elevation | 5,354 ft | 1,632 m |
| Minimum Elevation | 3,252 ft | 992 m |
| Average Elevation | 4,163 ft | 1,269 m |
| Land Ownership (acres) | ||
| Total Federal Lands | 33,520 | 1% |
| Bureau of Land Management | 8,360 | < 1% |
| Federal Land, Misc | 25,159 | 1% |
| Total Forest Service Land | 0 | None |
| Total State Lands | 200,761 | 8% |
| City, County, and Other Local Government Lands | 0 | None |
| Land Trusts and Non-Governmental Organizations | 0 | None |
| Tribal Lands | 0 | None |
| Private Lands | 2,221,059 | 90% |
| Ecoregions (acres) | ||
| 25: High Plains | 225,193 | 9% |
| 25b: Rolling Sand Plains | 4,374 | < 1% |
| 25d: Flat to Rolling Plains | 220,819 | 9% |
| 26: Southwestern Tablelands | 2,230,147 | 91% |
| 26e: Piedmont Plains and Tablelands | 2,010,669 | 82% |
| 26g: Purgatoire Hills and Canyons | 115,557 | 5% |
| 26k: Sandsheets | 103,920 | 4% |
Potential Conservation Areas (PCAs) are delineated around important elements of biodiversity (plants, animals or natural communities). The list below includes all PCAs within the Upper Arkansas-John Martin Reservoir created for wetland and riparian dependent elements. This list represents wetlands and riparian areas with the highest known biodiversity value in the area.
PCA Reports
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| Site Name | Biodiversity Significance |
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Tracked elements of biodiversity include animals, plants, and natural communities that are uncommon either globally or within the state of Colorado. The list below includes all wetland and riparian dependent elements found within the Upper Arkansas-John Martin Reservoir and the count of known occurrences.
Tracked Elements
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The spatial filters below are based on current and historical CNHP element occurrence and observation locations, and not known distributions documented in the literature.
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| Major Group | State Scientific Name | Common Name | Global Rank | State Rank | ESA Status | CO Status | Other Status | CNHP Tracking Status |
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We're sorry, but at this time we do not have report data by river subbasin. If you wish to view report data, please select a major river basin or county. We are working to improve the ways in which you can view our data. Thank you for your patience and understanding.
Reports
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| Report Title | Authors | Year |
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