Great Lakes Northern Pine-Oak Forest

EVT 7238Laurentian-Acadian Northern Oak Forest
CES201.719GNRTreeHardwood
Summary
This is a pine-dominated, or occasionally pine-oak, forest system that is typically found on nutrient-poor soils, or on moderately rich soils in the upper Midwest, northeastern U.S., and adjacent Canada, in a variety of topographic settings. Soils are loamy to sandy, varying from thin soil over bedrock to deeper soils, sometimes sandy. Sites are xeric to subxeric, but less strongly than barrens and sandplains. The dominant fire regime varies from 100-200 years for Pinus strobus and Pinus resinosa. Other boreal conifers, or in the East Picea rubens, may occasionally be present. Canopy structure is mostly closed but can be partially open. Conifers typically dominate the canopy, but codominates may include hardwoods, especially Quercus rubra or Acer rubrum, but also Populus tremuloides or Betula papyrifera. The shrub and field layers can be somewhat dense to sparse.
Source: NatureServe Explorer
Distribution
This system is found in the upper midwestern and northeastern United States and adjacent Canada.
Source: NatureServe Explorer
Ecologically Associated Plant Species

Plant species that characterize this ecosystem type, organized by vegetation stratum. These are species ecologically associated with the ecosystem, not confirmed present in any specific area.

Tree canopy

Acer rubrum, Betula papyrifera, Picea rubens, Pinus resinosa, Pinus strobus, Populus tremuloides, Quercus rubra

Shrub/sapling (tall & short)

Corylus cornuta

Short shrub/sapling

Rubus beamanii, Vaccinium angustifolium

Herb (field)

Aralia nudicaulis, Botrychium lineare, Maianthemum canadense, Trientalis borealis

Nonvascular

Fuscoboletinus weaverae
Source: NatureServe Ecological System assessment
Ecologically Associated Animals (14)

Animal species ecologically associated with this ecosystem type based on NatureServe assessment. These are species whose habitat requirements overlap with this ecosystem, not confirmed present in any specific roadless area.

Mammals (2)

Common NameScientific NameG-Rank
Indiana MyotisMyotis sodalisG2
North American Red SquirrelTamiasciurus hudsonicusG5

Birds (3)

Common NameScientific NameG-Rank
Brown CreeperCerthia americanaG5
Pileated WoodpeckerDryocopus pileatusG5
Red-breasted NuthatchSitta canadensisG5

Reptiles (1)

Common NameScientific NameG-Rank
Common GartersnakeThamnophis sirtalisG5

Butterflies & Moths (2)

Common NameScientific NameG-Rank
Persius DuskywingErynnis persius persiusG5T1T3
Karner BluePlebejus samuelisG1G2

Insects (4)

Common NameScientific NameG-Rank
Headwater Chilostigman CaddisflyChilostigma itascaeG2
Robust Dubiraphian Riffle BeetleDubiraphia robustaG1G3
American Burying BeetleNicrophorus americanusG3
Hine's EmeraldSomatochlora hineanaG2G3

Molluscs (1)

Common NameScientific NameG-Rank
Frigid AmbersnailMediappendix gelidaG1Q

Other (1)

Common NameScientific NameG-Rank
Appalachian Grizzled SkipperPyrgus wyandotG1G2Q
Source: NatureServe Ecological System assessment
At-Risk Species Associated with this Ecosystem (12)

Species with conservation concern that are ecologically associated with this ecosystem type. G-Rank indicates global conservation status: G1 (critically imperiled) through G5 (secure). ESA status indicates U.S. Endangered Species Act listing.

Common NameScientific NameG-RankESA Status
Narrowleaf GrapefernBotrychium lineareG3--
Headwater Chilostigman CaddisflyChilostigma itascaeG2--
Robust Dubiraphian Riffle BeetleDubiraphia robustaG1G3--
Persius DuskywingErynnis persius persiusG5T1T3--
a fungusFuscoboletinus weaveraeG1?--
Frigid AmbersnailMediappendix gelidaG1Q--
Indiana MyotisMyotis sodalisG2Endangered
American Burying BeetleNicrophorus americanusG3Threatened; Experimental population, non-essential
Karner BluePlebejus samuelisG1G2Endangered
Appalachian Grizzled SkipperPyrgus wyandotG1G2Q--
Beaman's DewberryRubus beamaniiG2?Q--
Hine's EmeraldSomatochlora hineanaG2G3Endangered
Source: NatureServe Ecological System assessment
Component Associations (7)

Plant community associations that occur within this ecological system. Associations are the finest level of the U.S. National Vegetation Classification (USNVC) and describe specific, repeating assemblages of plant species. Each association represents a distinct community type that may be found where this ecosystem occurs.

NameG-Rank
Pinus resinosa - Pinus strobus / Corylus cornuta / Vaccinium angustifolium ForestG3 NatureServe
Pinus resinosa - Pinus strobus - (Quercus rubra) / Corylus cornuta ForestG3 NatureServe
Pinus strobus / Acer spicatum - Corylus cornuta ForestG3 NatureServe
Pinus strobus - Pinus resinosa / Cornus canadensis ForestGNR NatureServe
Pinus strobus - (Pinus resinosa) - Quercus rubra ForestG4 NatureServe
Pinus strobus - Populus tremuloides - (Acer rubrum) / Pteridium aquilinum ForestGNR NatureServe
Quercus rubra - Acer rubrum - Betula spp. - Pinus strobus Ruderal ForestGNA NatureServe
State Conservation Ranks (7)

Subnational conservation status ranks (S-ranks) assigned by Natural Heritage Programs in each state where this ecosystem occurs. S1 indicates critically imperiled at the state level, S2 imperiled, S3 vulnerable, S4 apparently secure, and S5 secure. An ecosystem may be globally secure but imperiled in specific states at the edge of its range.

StateS-Rank
MESNR
MISNR
MNSNR
NHSNR
NYSNR
VTSNR
WISNR
Roadless Areas (1)

Inventoried Roadless Areas where this ecosystem is present, identified from LANDFIRE 2024 Existing Vegetation Type spatial analysis. Coverage indicates the proportion of each area occupied by this ecosystem type.

Michigan (1)

AreaForestCoverageHectares
Bear SwampHuron-Manistee National Forest5.0%79.56
Methodology and Data Sources

Ecosystem classification: Ecosystems are classified using the LANDFIRE 2024 Existing Vegetation Type (EVT) layer, mapped to NatureServe Terrestrial Ecological Systems via a curated crosswalk. Each EVT is linked to the USNVC (U.S. National Vegetation Classification) hierarchy through pixel-level co-occurrence analysis of LANDFIRE EVT and NatureServe IVC Group rasters across all roadless areas.

Vegetation coverage: Coverage percentages and hectares are derived from zonal statistics of the LANDFIRE 2024 EVT raster intersected with roadless area boundaries.

Ecosystem narratives and community species: Sourced from the NatureServe Explorer API, representing professional ecological assessments of vegetation composition, environmental setting, dynamics, threats, and characteristic species assemblages.

IVC hierarchy: The International Vegetation Classification hierarchy is sourced from the USNVC v3.0 Catalog, providing the full classification from Biome through Association levels.

Component associations: Plant community associations listed as components of each NatureServe Ecological System. Association data from the NatureServe Explorer API.

State ranks: Conservation status ranks assigned by NatureServe member programs in each state where the ecosystem occurs.