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CEGL002600 Alnus rubra / Adiantum pedatum Swamp Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Red Alder / Northern Maidenhair Swamp Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: Alnus rubra / Adiantum pedatum is an early-seral community type that occurs on well-drained, moderate to steep mid to lower slopes and toeslopes at 490 to 915 m (1600-3000 feet) elevation. Sites are usually influenced by cold-air drainage. The community type occurs within the warmest extreme of the inland maritime climatic regime. Sites occur within a region of rugged topography. A history of repeated natural mass-wasting and alluvial deposition is apparent in these steep v-shaped valleys. These mass-wasting disturbance events occur with sufficient frequency to maintain the early-seral Alnus rubra-dominated stands. Alnus rubra / Adiantum pedatum stands are typically the result of the rapid establishment and domination by Alnus rubra following stand-replacing disturbance (such as an intense wildfire or a landslide). The even-aged Alnus rubra form a single-layered, dense deciduous forest canopy. Understory shrub associates include Acer glabrum, Rosa gymnocarpa, Rubus parviflorus, Symphoricarpos mollis, and Vaccinium membranaceum. Herbaceous species with a strong affinity to the community are Adiantum pedatum, Anemone piperi, Asarum caudatum, Athyrium filix-femina, Circaea alpina, Clintonia uniflora, Coptis occidentalis, Cornus canadensis, Gymnocarpium dryopteris, Polystichum munitum, Streptopus amplexifolius, and Tiarella trifoliata var. unifoliata.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Stands are typically the result of the rapid establishment and domination by Alnus rubra following stand-replacing disturbance (such as an intense wildfire or a landslide). The even-aged Alnus rubra form a single-layered, dense deciduous forest canopy. Understory shrub associates include Acer glabrum, Rosa gymnocarpa, Rubus parviflorus, Symphoricarpos mollis, and Vaccinium membranaceum. Herbaceous species with a strong affinity to the community are Adiantum pedatum, Anemone piperi, Asarum caudatum, Athyrium filix-femina, Circaea alpina, Clintonia uniflora, Coptis occidentalis, Cornus canadensis, Gymnocarpium dryopteris, Polystichum munitum, Streptopus amplexifolius, and Tiarella trifoliata var. unifoliata.
Dynamics: No Data Available
Environmental Description: This early-seral community type that occurs on well-drained, moderate to steep mid to lower slopes and toeslopes at 490 to 915 m (1600-3000 feet) elevation. Sites are usually influenced by cold-air drainage. The community type occurs within the warmest extreme of the inland maritime climatic regime. Sites occur within a region of rugged topography. A history of repeated natural mass-wasting and alluvial deposition is apparent in these steep v-shaped valleys. These mass-wasting disturbance events occur with sufficient frequency to maintain the early-seral Alnus rubra-dominated stands.
Geographic Range: The community type occurs within the North Fork Clearwater, Selway, and Lochsa river drainages, within the southern and northern regions, respectively, of the Bitterroot Mountains and Idaho Batholith ecoregional sections.
Nations: US
States/Provinces: ID
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687679
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G1
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Ng Vancouverian Flooded & Swamp Forest Division | D193 | 1.B.3.Ng |
| Macrogroup | 1.B.3.Ng.1 Vancouverian Flooded & Swamp Forest Macrogroup | M035 | 1.B.3.Ng.1 |
| Group | 1.B.3.Ng.1.b Mountain Hemlock - Fir species / Willow species Montane Riparian Woodland Group | G507 | 1.B.3.Ng.1.b |
| Alliance | A3768 Quaking Aspen - Red Alder Swamp Forest Alliance | A3768 | 1.B.3.Ng.1.b |
| Association | CEGL002600 Red Alder / Northern Maidenhair Swamp Forest | CEGL002600 | 1.B.3.Ng.1.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Cooper, S. V., K. E. Neiman, R. Steele, and D. W. Roberts. 1987. Forest habitat types of northern Idaho: A second approximation. General Technical Report INT-236.USDA Forest Service, Intermountain Research Station, Ogden, UT. 135 pp. [reprinted in 1991]
- IDCDC [Idaho Conservation Data Center]. 2005. Wetland and riparian plant associations in Idaho. Idaho Conservation Data Center, Idaho Department of Fish and Game, Boise. [http://fishandgame.idaho.gov/tech/CDC/ecology/wetland_riparian_assoc.cfm] (accessed 14 June 2005).
- Moseley, R. K. 1988. Rare species and community inventory along two routes of the Dworsak Access Road through the Aquarius Research Natural Area. The Nature Conservancy. 14 pp.
- Steele, R. W. 1971. Red alder habitats in Clearwater County, Idaho. Unpublished thesis, University of Idaho, Moscow. 88 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.