Print Report
CEGL003967 Mahonia fremontii Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Fremont''s Mahonia Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This unusual shrubland is rare and is only known from Glen Canyon National Recreation Area in Utah. Total vegetation cover is 24%. Mahonia fremontii shrubs form an open canopy with 10% cover. Associated shrubs include Ericameria nauseosa, Ephedra viridis, Atriplex canescens, and Gutierrezia sarothrae. Herbaceous species contribute low cover and may include Sporobolus airoides, Pleuraphis jamesii, Achnatherum hymenoides, Bromus tectorum, Artemisia ludoviciana, and Comandra umbellata. Biological soil crust cover is moderate to high (to 51%). Stands occur on washbanks or terraces 2 to 3 m above the channel. The slope of the sampled stand is moderate, oriented to the south and lies at 1575 m elevation. Exposed soil covers most of the unvegetated surface, with low cover by litter. A well-developed biological soil crust community covers more than half the sampled plot. The soil is a rapidly drained silt loam derived from alluvium rich in shale.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is known and described because of the National Park Service inventory efforts in the Colorado Plateau. Mahonia fremontii is more commonly found in the understory of woodlands or forming a dwarf-shrub layer in taller shrublands. With only one plot to represent it, this type is very provisional, and with further classification work, could be merged into some other association.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is documented from a single occurrence and will require further documentation to develop a thorough global description.
Dynamics: No Data Available
Environmental Description: This association is documented from a single occurrence found on washbanks or terraces 2 to 3 m above the channel. The slope of the sampled stand is moderate, oriented to the south and lies at 1575 m elevation. Exposed soil covers most of the unvegetated surface, with low cover by litter. A well-developed biological soil crust community covers more than half the sampled plot. The soil is a rapidly drained silt loam derived from alluvium rich in shale.
Geographic Range: This association is represented by a single plot in Glen Canyon National Recreation Area in southern Utah.
Nations: US
States/Provinces: UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.794107
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 3 Desert & Semi-Desert Class | C03 | 3 |
| Subclass | 3.B Cool Semi-Desert Scrub & Grassland Subclass | S11 | 3.B |
| Formation | 3.B.1 Cool Semi-Desert Scrub & Grassland Formation | F033 | 3.B.1 |
| Division | 3.B.1.Ne Western North American Cool Semi-Desert Scrub & Grassland Division | D040 | 3.B.1.Ne |
| Macrogroup | 3.B.1.Ne.1 Yellow Rabbitbrush - Blackbrush / Indian Ricegrass Dry Shrubland & Grassland Macrogroup | M171 | 3.B.1.Ne.1 |
| Group | 3.B.1.Ne.1.d Yellow Rabbitbrush - Rubber Rabbitbrush - Winterfat Steppe & Shrubland Group | G310 | 3.B.1.Ne.1.d |
| Alliance | A3196 Rubber Rabbitbrush Steppe & Shrubland Alliance | A3196 | 3.B.1.Ne.1.d |
| Association | CEGL003967 Fremont''s Mahonia Shrubland | CEGL003967 | 3.B.1.Ne.1.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Mahonia fremontii Shrubland (Tendick et al. 2017)
- Tendick, A., J. Spence, M. Reid, K. Shulz, G. Kittel, K. Green, A. Wight, and G. Wakefield. 2017. Vegetation classification and mapping project report, Glen Canyon National Recreation Area and Rainbow Bridge National Monument. Natural Resource Report NPS/NCPN/NRR—2017/1500. National Park Service, Fort Collins, CO. 1464 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.