Print Report

CEGL002446 Picea glauca - Abies balsamea / Acer spicatum / Rubus pubescens Forest

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: White Spruce - Balsam Fir / Mountain Maple / Dwarf Red Blackberry Forest

Colloquial Name: Spruce - Fir / Mountain Maple Forest

Hierarchy Level:  Association

Type Concept: This white spruce - balsam fir conifer forest is found in the subboreal region of the Great Lakes in the United States and elsewhere in central Canada. Stands are found primarily on dry-mesic to mesic sites with well-drained, deep (>60 cm), loam, sand, or silt soils. Less commonly, it may be found on wetter sites. The soils have little organic content, and the topography is flat to gently sloping. This community is a closed-canopy forest dominated by a combination of Picea glauca and Abies balsamea. Common associates include Acer rubrum, Betula papyrifera, Picea mariana, Pinus banksiana, Populus tremuloides, and Populus balsamifera. There is usually a prominent shrub/sapling layer containing Abies balsamea, Acer spicatum, Corylus cornuta, Diervilla lonicera, Lonicera canadensis, Picea glauca, Rosa acicularis, Rubus pubescens, Sorbus americana, Vaccinium myrtilloides, and (eastward) Viburnum nudum var. cassinoides. The herbaceous layer is often moderately sparse, with species such as Anemone quinquefolia, Aralia nudicaulis, Eurybia macrophylla, Clintonia borealis, Coptis trifolia, Cornus canadensis, Dryopteris carthusiana, Maianthemum canadense, Mitella nuda, and Trientalis borealis. Mosses include Dicranum polysetum, Pleurozium schreberi, Ptilium crista-castrensis, and Rhytidiadelphus triquetrus.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type (CEGL002446) occurs in a variety of sites, including sites that are fairly wet [but see ~Populus tremuloides - Abies balsamea Wet-Mesic Forest (CEGL005238)$$, which may include the moist end of spruce-fir stands in the subboreal region], and occurs both after disturbances and as a late-successional type. It is difficult to separate from the mixed spruce-fir-hardwood types, ~Picea glauca - Abies balsamea - Populus tremuloides / Mixed Herbs Forest (CEGL002475)$$, from which it may only differ in the degree of conifer dominance. Treefalls in this type can create a very open canopy. Inclusions of Spruce-Fir/Feathermoss, ~Picea glauca - Abies balsamea / Pleurozium schreberi Forest (CEGL002509)$$, may occur in this type in the Great Lake states. Conversely, CEGL002509 appears to be the common type in Manitoba, and this type is not expected (J. Greenall pers. comm. 1999). In northern Wisconsin this type has been documented only in ravines or on stable clay bluffs and is not known from the extensive Lake Superior clayplains [see ~Picea glauca - Abies balsamea - Populus tremuloides / Mixed Herbs Forest (CEGL002475)$$]. Stands of Picea glauca or Abies balsamea south of the subboreal region (i.e., north-central Minnesota, northern Wisconsin, Upper Peninsula and northern Lower Peninsula, central Ontario, and perhaps Quebec), are placed in either ~Pinus strobus - Picea glauca - Betula papyrifera Subboreal Forest (CEGL005224)$$ or CEGL005238 (both within ~Abies balsamea - Betula alleghaniensis - Populus tremuloides Subboreal Forest Alliance (A3267)$$) and typically have a northern hardwoods ground layer and a variable mix of northern hardwoods tree species (Acer saccharum, Fagus grandifolia, Fraxinus americana, Quercus rubra, Tilia americana), as well as boreal hardwoods Betula papyrifera, Populus grandidentata, Populus tremuloides, and occasional conifers Pinus strobus, Tsuga canadensis, or Thuja occidentalis.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: This community is a closed-canopy forest dominated by a combination of Picea glauca and Abies balsamea. Some stands have a preponderance of one of these species and the other may then be an important associate. In these situations it is typically Picea glauca that is the most abundant (Maycock and Curtis 1960, MNNHP 1993). Common associates include Acer rubrum, Betula papyrifera, Picea mariana, Pinus banksiana, Populus tremuloides, and Populus balsamifera. There is usually a prominent shrub/sapling layer containing Abies balsamea, Acer spicatum, Corylus cornuta, Diervilla lonicera, Lonicera canadensis, Picea glauca, Rosa acicularis, Rubus pubescens, Sorbus americana, Vaccinium myrtilloides, and (eastward) Viburnum nudum var. cassinoides. The herbaceous layer is often moderately sparse, with species such as Anemone quinquefolia, Aralia nudicaulis, Eurybia macrophylla (= Aster macrophyllus), Clintonia borealis, Coptis trifolia, Cornus canadensis, Dryopteris carthusiana, Maianthemum canadense, Mitella nuda and Trientalis borealis. Mosses include Dicranum polysetum, Pleurozium schreberi, Ptilium crista-castrensis, and Rhytidiadelphus triquetrus (Sims et al. 1989, Chambers et al. 1997).

Dynamics:  No Data Available

Environmental Description:  This community is found primarily on dry-mesic to mesic sites with well-drained, deep (>60 cm) loam, sand, or silt soils (Sims et al. 1989, Zoladeski et al. 1995). Less commonly, it may be found on wetter sites that approach seasonally saturated conditions (Maycock 1961). The soils have little organic content and the topography is flat to gently sloping.

Geographic Range: This white spruce - balsam fir conifer forest is found in the southern boreal region of the Great Lakes of the United States and elsewhere in central Canada.

Nations: CA,US

States/Provinces:  MB, MI, MN, ON, QC?, WI




Confidence Level: High

Confidence Level Comments: No Data Available

Grank: G4G5

Greasons: No Data Available


Concept Lineage: CEGL002474 merged into CEGL002446 (DFL 7-13).

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Abies-Populus/Rosa/Mertensia, Corylus/Diervilla/Aster-Anemone Group (LaRoi 1967)
= Picea glauca - Abies balsamea / Acer spicatum / Rubus pubescens Forest (Faber-Langendoen 2001) [Boreal Forest Spruce-Fir Subtype]
= Aetna Creek Stand (Maycock 1961)
= Delaware Stand (Maycock 1961)
= Dry-mesic Stands (Maycock and Curtis 1960) [uncertain if equivalent]
= Spruce - Fir Forest White Spruce - Balsam Fir Subtype (MNNHP 1993)
= White Spruce - Balsam Fir / Shrub Forest (Zoladeski et al. 1995)

Concept Author(s): D. Faber-Langendoen (2001)

Author of Description: J. Drake

Acknowledgements: No Data Available

Version Date: 03-05-96

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