Print Report
CEGL002307 Scree - Talus Black Hills Sparse Vegetation
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Scree - Talus Black Hills Sparse Vegetation
Colloquial Name: Black Hills Scree - Talus
Hierarchy Level: Association
Type Concept: This type has been reported from the Black Hills region of the United States, and may occur elsewhere in the Rocky Mountains. Substrate includes igneous and metamorphic rocks, but more information is needed on what kinds of rock formations produce the scree or talus habitat. Type may not be found at any scale worth separating from ~Pinus ponderosa Scree Woodland (CEGL000878)$$.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This sparsely vegetated talus/scree type may be related to talus/scree types in the Rocky Mountains. It may be best to expand this type to include ~Pinus ponderosa Scree Woodland (CEGL000878)$$ in the Black Hills, but there currently is insufficient information to do so. The latter community is characterized by greater tree cover (usually greater than 20%), but with a sparse understory. There may not be enough examples of the scree woodland type in the Black Hills to justify recognizing two scree types. Because this type occurs on a variety of rock types and includes a wide range of elevations, it may be quite variable floristically.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This is a sparse vegetation type with total vegetative cover usually less than 10%. Lichens may be common, especially on igneous and metamorphic rocks. Little information is currently available as to species composition of this type. Because it occurs on a variety of rock types and includes a wide range of elevations, this type may be quite variable floristically (Marriott and Faber-Langendoen 2000).
Dynamics: No Data Available
Environmental Description: Substrate includes igneous and metamorphic rocks, but more information is needed on what kinds of rock formations produce the scree or talus habitat. In the Black Hills region, talus and scree slopes are scattered at elevations in the range of 1100 to 1980 m (3600-6500 feet). Soils generally are poor and restricted to small accumulations among talus and scree. Talus and scree slopes are derived from a variety of rock types, but the most sizeable ones are restricted to three major rock types. Talus and scree composed of Precambrian schists and slate occur in the Central Core region. Accumulations of large sandstone boulders are found in narrow canyon bottoms in the Hogback Rim and occasionally below sandstone rimrock. Talus and scree slopes are common on igneous landforms in the zone of Tertiary igneous activity in the northern Black Hills (e.g., Devils Tower, Sundance Mountain, Bear Butte). Small slopes of limestone talus are occasionally found, for example, below the extensive exposures of limestone cliffs in Spearfish Canyon (Marriott and Faber-Langendoen 2000).
Geographic Range: This type has been reported from the Black Hills region of the United States, and may occur elsewhere in the Rocky Mountains.
Nations: US
States/Provinces: SD
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.689796
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 6 Open Rock Vegetation Class | C06 | 6 |
| Subclass | 6.B Temperate & Boreal Open Rock Vegetation Subclass | S04 | 6.B |
| Formation | 6.B.1 Temperate & Boreal Cliff, Scree & Other Rock Vegetation Formation | F034 | 6.B.1 |
| Division | 6.B.1.Nb Western North American Temperate Cliff, Scree & Rock Vegetation Division | D052 | 6.B.1.Nb |
| Macrogroup | 6.B.1.Nb.1 Douglas-fir - Ponderosa Pine / Moss Western North American Cliff, Scree & Rock Vegetation Macrogroup | M887 | 6.B.1.Nb.1 |
| Group | 6.B.1.Nb.1.b Nonvascular Rocky Mountain Cliff, Scree & Rock Vegetation Group | G565 | 6.B.1.Nb.1.b |
| Alliance | A3742 Black Hills Cliff, Scree & Rock Alliance | A3742 | 6.B.1.Nb.1.b |
| Association | CEGL002307 Scree - Talus Black Hills Sparse Vegetation | CEGL002307 | 6.B.1.Nb.1.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Scree - Talus Black Hills Sparse Vegetation (Marriott and Faber-Langendoen 2000)
= Scree - Talus Black Hills Sparse Vegetation (Faber-Langendoen 2001)
= Scree - Talus Black Hills Sparse Vegetation (Faber-Langendoen 2001)
- Faber-Langendoen, D., editor. 2001. Plant communities of the Midwest: Classification in an ecological context. Association for Biodiversity Information, Arlington, VA. 61 pp. plus appendix (705 pp.).
- Marriott, H. J., and D. Faber-Langendoen. 2000. The Black Hills community inventory. Volume 2: Plant community descriptions. The Nature Conservancy, Midwest Conservation Science Center and Association for Biodiversity Information, Minneapolis, MN. 326 pp.
- Midwestern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Minneapolis, MN.
- SDNHP [South Dakota Natural Heritage Program]. 2018. Unpublished data. South Dakota Natural Heritage Program, Pierre, SD.