Animal community

Animal Community – Wildlife Interpretations

The MLRA 55A landscape is characterized by mostly nearly level to gently rolling till plains with some steep slopes adjacent to streams. The MLRA includes areas of kettle holes, kames, and ground moraines. MLRA 55A is considered to have a continental climate with cold winters and hot summers, low humidity, light rainfall, and much sunshine. Extremes in temperature are common and characteristic of the MLRA. This area supports mid- to tall-grass prairie vegetation with quaking aspen, bur oak, green ash, and willow species growing on the higher elevations in Turtle Mountain, on moraines in proximity of Devils Lake, Pembina River Escarpment and Gorge, and various drainageways throughout the MLRA. Numerous depressional wetlands are ringed with quaking aspen. Complex intermingled ecological sites create diverse grass/shrub land habitats interspersed with varying densities of linear, slope, depressional, and in-stream wetlands associated with headwater streams and tributaries of the Souris and Pembina Rivers. MLRA 55A is located entirely within North Dakota and within the boundaries of the Prairie Pothole Region. The primary land use is cropland. Glacial Lake Souris and the Devils Lake Basin are known for exceptional fertility with major crops including corn, canola, soybeans, and small grains. Together, these two areas make up 73% of the MLRA (Glacial Lake Souris 5500 mi2, 43%; and the Devils Lake Basin 3810 mi2, 30%).

Turtle Mountain (1000 mi2 of which 405 mi2 are found in North Dakota), in the north-central part of the MLRA on the Canadian border, is approximately 1,950 to 2,541 feet (595 to 775 meters) in elevation, rising approximately 600 to 800 feet (150 meters) above the adjacent till plain. Home to an extensive forest of quaking aspen, bur oak, green ash, and willows, it has an understory of beaked hazel with associates of chokecherry, Saskatchewan serviceberry, downy arrowwood, and rose. Turtle Mountain comprises the largest area of quaking aspen forest in North Dakota.

The Pembina Escarpment extends from the Canadian border southeast to Walhalla where the Pembina River enters the floor of the Red River Valley in MLRA 56A. Mainly found on steep slopes along the Pembina River, the Pembina Gorge is in a rugged and sheltered setting with bur oak, green ash, cottonwood, and American elm. Encompassing approximately 12,500 acres, the Pembina Gorge is one of the largest uninterrupted blocks of woodlands in North Dakota. This segment of the Pembina River is the longest segment of unaltered river valley in the North Dakota.

Two major Hydrologic Unit Areas make up this MLRA. 56% of the MLRA drains into the Souris River while 44% drains into the Red River (via the Pembina River) or into Devils Lake (out-letting to Sheyenne River via a pump, pipeline, canal system). The North Dakota portion of the Souris River watershed is in this MLRA. The Souris River basin drains nearly 23,600 square miles and has a long history of flooding.

By the mid-19th century, over 75% of the MLRA had been converted from mid- to tall-grass prairie or woodland to annual crop production. To alleviate crop production loss from wetlands and overland flow, a system of shallow surface ditches, judicial ditches, and road ditches removes surface water in spring and during high rainfall events. Tile drainage systems have been or are being installed extensively throughout MLRA 55A for sub-surface field drainage to enhance annual crop production.

Historic Communities/Conditions within MLRA 55A:

The northern tall- and mixed-grass prairie along with the quaking aspen forest were disturbance-driven ecosystems with fire, herbivory, and climate functions as the primary ecological drivers (either singly or often in combination). American bison roamed MLRA 55A wintering along the Souris River and migrating through MLRA 55A into MLRAs 56A and 55B. Many species of grassland birds, small mammals, insects, reptiles, amphibians, elk, moose, pronghorn, and large herds of American bison were historically among the inhabitants adapted to this region. Roaming herbivores, as well as several small mammal and insect species, were the primary consumers linking the grassland resources to large predators (such as the wolf, American black bear, grizzly bear) and smaller carnivores (such as the coyote, bobcat, red fox, and raptors). Extirpated species include free-ranging American bison and gray wolf (breeding). Extinct is the Rocky Mountain locust.

Present Communities/Conditions within MLRA 55A:

This area supports natural prairie vegetation characterized by western wheatgrass, green needlegrass, needle and thread, and blue grama. Little bluestem is an important species on the more sloping and shallower soils. Prairie cordgrass, northern reedgrass, big bluestem, and wheat sedge are important species on soils with higher water tables. Western snowberry, leadplant, and prairie rose are commonly interspersed throughout the area. Native forests occur in Turtle Mountain, Pembina Gorge, moraines near Devils Lake, woody draws, scattered tracts along the Souris River, and in the sand dunes in west central region of the MLRA.

Over 75% of MLRA 55A has been converted to annual crop production. European influence has impacted remaining grassland, forestland, and shrubland by domestic livestock grazing, elimination of fire, tree harvest, removal of surface and subsurface hydrology via artificial drainage, and other anthropogenic factors influencing plant community composition and abundance.

Hydrological manipulation is extensive throughout the MLRA. Extensive wetland and subsurface tile drainage have taken place. Ephemeral and intermittent streams and the Souris River have been straightened - removing sinuosity, creating isolated oxbows, and converting riparian zones to annual crop production. These anthropogenic impacts have reduced flood water detention and retention on the landscape. The results have been increasing storm water runoff sediment and nutrient loading impacting the Souris and Des Lacs Rivers and their tributaries along with Devils Lake and other lakes within the MLRA. The installation of instream structures has reduced aquatic species movement within the MLRA. Two large dams in Saskatchewan, Canada (Rafferty on the Souris River and Alameda on Moose Mountain Creek, a major tributary to the Souris River) were built, in part, to reduce flood peaks on the Souris River. In addition, three USFWS National Wildlife Refuges were created by building two low-head dams on the Souris River and one on the Des Lacs River in North Dakota. Numerous low-head dams are located on the Souris and Des Lacs Rivers in North Dakota. The Eaton Irrigation Project low-head dam, located in the vicinity of Towner, North Dakota, provides flood irrigation to approximately 6,700 acres of hayland and pastureland.

The loss of the American bison and fire, as primary ecological drivers, greatly influenced the character of the remaining native plant communities and the associated wildlife moving towards a less diverse and more homogeneous landscape. Annual cropping is the main factor contributing to habitat fragmentation, reducing habitat quality for area-sensitive species. These influences fragmented the landscape, reduced or eliminated ecological drivers (fire), and introduced exotic species including smooth brome, Kentucky bluegrass, and leafy spurge which further impacted plant and animal communities.

Included in this MLRA are over 121,000 acres of National Wildlife Refuges and over 77,000 acres of waterfowl production areas owned and managed by the United States Fish and Wildlife Service. White Horse Hill National Game Preserve is a 1,674-acre national wildlife refuge sitting on the south shores of Devils Lake, about 10 miles south of the city of Devils Lake. Numerous state-owned parks, state wildlife management areas, North Dakota Forest Service and Department of Trust Lands are found in the MLRA. Wakopa Wildlife Management Area is the largest WMA covering approximately 6,739 acres.

Some characteristic wildlife species in this area are:

Birds: Common loon, common goldeye, bufflehead, ruffed grouse, broad-winged hawk, alder flycatcher, mourning warbler, mallard, blue-winged teal, red-tailed hawk, American kestrel, killdeer, eastern and western kingbird, American crow, common yellowthroat, clay-colored sparrow, vesper sparrow, red-necked grebe, Savannah sparrow, downy and hairy woodpeckers, black-capped chickadee, white-breasted nuthatch, and brown-headed cowbird.

Mammals: Northern short-tailed shrew, water shrew, beaver, muskrat, mink, long-tailed weasel, American martin, fisher, white-tailed jackrabbit, snowshoe hare, Franklin’s ground squirrel, thirteen-lined ground squirrel, northern pocket gopher, plains pocket gopher, western harvest mouse deer mouse, meadow vole, meadow jumping mouse, western jumping mouse, coyote, red fox, racoon, American badger, striped skunk, white-tailed deer, elk, moose, and woodchuck, red squirrel, porcupine, and northern flying squirrel.

Reptiles/Amphibians: American toad, Great Plains toad, northern leopard frog, chorus frog, tiger salamander, plains garter snake, smooth green snake, wood frog, and common garter snake.

Presence of wildlife species is often determined by ecological site characteristics including grass and forb species, tree and shrub species, hydrology, aspect, and other associated ecological sites. The home ranges of a majority species are usually larger than one ecological site or are dependent on more than one ecological site for annual life requisites. Ecological sites offer different habitat elements as the annual life requisites change. Habitat improvement and creation must be conducted within the mobility limits of a known population for the species.

Insects play an important role providing ecological services for plant community development. Insects that are scavengers or aid in decomposition provide the food chain baseline sustaining the carnivorous insects feeding upon them. Many insects provide the ecological services necessary for pollination, keeping plant communities healthy and productive. Insects provide a protein food source for numerous species including grassland- nesting birds, woodpeckers, and woodland edge and interior species, and their young. Extensive use of insecticides for specialty crops (such as soybeans, corn, and other crops) has greatly reduced insects within this MLRA.

Species of Concern within MLRA 55A:

The following is a list of species considered “species of conservation priority” in the North Dakota State Wildlife Action Plan (2015) and “species listed as threatened, endangered, or petitioned” under the Endangered Species Act within MLRA 55A at the time this section was developed:

Invertebrates: Dakota skipper, monarch butterfly, and regal fritillary. Within the MLRA, the United States Fish and Wildlife Service lists 5 areas (in Rolette and McHenry Counties) as critical habitat for the Dakota skipper.

Birds: American avocet, American bittern, American kestrel, American white pelican, Baird’s sparrow, bald eagle, black tern, black-billed cuckoo, bobolink, canvasback, chestnut-collared longspur, ferruginous hawk, Franklin’s gull, grasshopper sparrow, horned grebe, LeConte’s sparrow, lesser scaup, loggerhead shrike, marbled godwit, Nelson’s sparrow, northern harrier, northern pintail, piping plover, sharp-tailed grouse, short- eared owl, Sprague’s pipit, Swainson’s hawk, upland sandpiper, western meadowlark, whooping crane, willet, Wilson’s phalarope, and yellow rail.

Mammals: American martin, Arctic shrew, big brown bat, gray fox, little brown bat, northern long-eared bat, plains pocket mouse, pygmy shrew, Richardson’s ground squirrel, river otter, and Townsend’s big-eared bat.

Amphibians/Reptiles: Canadian toad, common snapping turtle, plains hog-nosed snake, and smooth green snake.

Fish: Finescale dace, hornyhead chub, largescale stoneroller, logperch, northern pearl dace, and trout-perch.

Mussels: Black sandshell, creek heelsplitter, creeper, mapleleaf, and pink heelsplitter.

Grassland and Woodland Management for Wildlife in the MLRA 55A:

Management activities within the community phase pathways impact wildlife but are essential for maintenance of healthy grassland ecosystems. Community phase, transitional, and restoration pathways are keys to long- term management within each State and between States. Timing, intensity, and frequency of these inputs can have dramatic positive or negative effects on local wildlife species. Ranchers and other land managers must always consider the long-term beneficial management effects of grassland and woodland resources in comparison to typically short-term negative effects to the habitats of individual species.

Ecological sites occur as intermingled complexes on the landscape with gradual or sometimes abrupt transitions. Rarely do ecological sites exist in large enough acreage to manage independently for wildlife. Conversion to annual cropping and fragmentation due to transportation and electrical transmission corridors and to rural housing are main causes of fragmentation. This MLRA supports ecological sites that are dominated by woody vegetation and can be located adjacent to ecological sites that support tall- to mid- statured grasses (Thin Loamy/Shallow Loamy) or are adjacent to ecological sites that support wetland vegetation (Shallow Marsh and Wet Meadow).

Management of these ecological site complexes challenges managers to properly manage the entire landscape. A management strategy for one ecological site may negatively impact an adjacent site. For example, grazing Upland Hardwood Forest or Loamy Savannah ecological sites along with herbaceous dominated Loamy Overflow ecological sites may degrade one site by under-use, favoring woody vegetation or increasing exotic cool-season grasses.

Life requisites and habitat deficiencies are determined for targeted species. Deficiencies need to be addressed along community phase, transitional, and restoration pathways as presented in specific state-and- transition models. Ecological sites should be managed and restored within the site’s capabilities to provide sustainable habitat for targeted species or species guilds. Managers also need to consider vegetative associations provided by adjacent/intermingled ecological sites for species with home ranges or life requisites that may not be provided by one ecological site. Understanding specific grassland species’ sensitivity to woody encroachment and preferred vegetative structure enables managers to determine which grassland- nesting bird species will avoid grassland habitats adjacent to Upland Hardwood Forest or Loamy Savannah ecological sites or woody dominated, Plant Community Phase 5, Loamy ecological site.

Many passerine species utilize MLRA 55A as a major migratory travel corridor. Grassland species sensitive to woody associations during nesting and brooding may utilize the woodier fragmented sites, such as the Wooded State 5.0 in the Loamy ecological site, during migration.

Grassland-nesting birds use various grass heights for breeding, nesting, foraging, or winter habitat. While most species use varying heights, many have a preferred vegetative stature height or sensitivity to woody vegetation. Understanding the sensitivity of grassland species to woody vegetation and preferred vegetative structure enables managers to determine which grassland-nesting bird species avoid grassland habitats adjacent to Upland Hardwood Forest or Loamy Savannah ecological sites. The following chart provides sensitivity to woody vegetation and preferred vegetative stature heights.

To see the chart please follow the hyperlink:

https://efotg.sc.egov.usda.gov/references/public/ND/55A_Saline_Lowland_Narrative_FINAL_Ref_FSG.pdf

Saline Lowland Wildlife Habitat Interpretation:

Saline Lowland ecological sites are poorly drained; soluble salts are present within the rooting zone (typically at the surface) and significantly impact the plant community. The surface can become nearly barren due to the presence of salts. In some soils, subsurface soil layers may be restrictive to water movement and root penetration. Associated ecological sites commonly include Limy Subirrigated, Sodic Subirrigated, Thin Claypan, Shallow Marsh, Wet Meadow, Loamy Overflow, and Sandy Claypan. This complex of ecological sites provides habitat for many edge-sensitive, grassland bird species preferring medium- to tall-statured vegetation.

Saline Lowland habitat features and components commonly support grassland-nesting birds that prefer short- to medium stature vegetation. Low diversity and density of forb species provide limited pollen and nectar resources for pollinating insects. In turn, invertebrate production is low, providing limited protein resources for grassland-nesting birds. Saline Lowland ecological sites provide forage for small and large herbivores.

Saline Lowland ecological sites may be found in four plant community states (1.0 Reference State, 2.0 Native/Invaded State, 3.0 Invaded State, and 4.0 Go-Back State) within a local landscape. Multiple plant community phases exist within States 1.0 and 2.0. Today, these states occur primarily in response to drought, fire, grazing, and non-use and other anthropogenic disturbances.

Because there is no known restoration pathway from State 2.0 to State 1.0, it is important to intensively manage using Community Phase Pathways in State 1.0 to prevent further plant community degradation along the T1A Transitional Pathway to State 2.0. Native wildlife generally benefits from the heterogeneous grasslands found in State 1.0 that include grass and forb species of varying stature and density. As plant communities degrade and transition to State 2.0, foxtail barley increases while native forbs are reduced.

Management along community phase, transition, or restoration pathways should focus upon attainable changes. Short- and long-term monetary costs must be evaluated against short- and long- term ecological services in creating and maintaining habitat of enough quality to support a sustainable population density.

1.0 Reference State:

Community Phase 1.1 Wheatgrasses-Cordgrasses-Nuttall’s Alkaligrass: These plant communities offer quality vegetative cover for wildlife; if found, every effort should be made to maintain this ecological site within this community phase. This phase retains high functionality through continued maintenance including prescribed grazing with adequate recovery period, as well as prescribed fire. Prescribed fire frequency maintains a grass-dominated plant community providing habitat for bird species that are sensitive to woody vegetation. Predominance of grass species in these communities favors grazers and mixed-feeders (animals selecting grasses as well as forbs and shrubs). The structural diversity provides habitat for a wide array of migratory and resident birds.

Invertebrates: Insects play a role in maintaining the forb community and provide a forage base for grassland birds, reptiles, and rodents. Ecological services, historically provided by bison, are simulated by domestic livestock. These services include putting plant material and dung in contact with mineral soil to be used by lower trophic level consumers (such as invertebrate decomposers, scavengers, shredders, predators, herbivores, dung beetles, and fungal feeders). As salinity levels increase, invertebrate activity may decrease.

Dakota skippers do not prefer this site due to salinity and wetness along with limited host plants, such as little bluestem and prairie dropseed. Regal fritillary habitat is limited due to salinity and wetness and the short stature of this plant community and uncommon Nuttall’s and prairie violets. Monarch butterflies may use limited flowering forbs on this site; however, no milkweed species are found on this site to support caterpillar food. Overall nectar and pollen availability are limited due to low forb diversity due the combination of salinity and wetness. Bumblebees and other native bees utilize limited forbs as a nectar source. Although bare ground is common, wetness and salinity will limit nesting.

Birds: This plant community provide limited nesting, foraging, and escape habitats favored by short- to mid-grass-nesting birds. In association with Wet Meadow, this site may provide foraging sites for shore birds. This site provides limited hunting opportunities for grassland raptors.

Mammals: Limited diversity of grasses and forbs provide reduced nutrition levels for small and large herbivores including voles, mice, jackrabbits, and white-tailed deer. This site has less diversity and shorter plant stature compared to associated sites (such as Wet Meadow, Shallow Marsh, Limy Subirrigated and Loamy Overflow). Short- to mid-statured vegetation, wetness, and salinity provide limited food and thermal, protective, and escape cover for small herbivores.

Amphibians and Reptiles: Due to potential high salinity levels and wetness, these ecological sites do not provide suitable habitat for many amphibians and reptiles except during periods of above normal precipitation reducing the effects of high salinity levels. Ponded water during above average precipitation events will provide foraging habitat for the northern leopard frog and Canadian toad, depending upon salinity levels. Ponded water will not be deep enough to provide breeding habitat.

Fish and Mussels: These ecological sites can be located adjacent to streams, rivers, or water bodies. These sites receive run-on hydrology from adjacent ecological sites and provide hydrology to Wet Meadow or Shallow Marsh ecological sites. Management on Saline Lowland sites, in conjunction with neighboring run-on sites, can have a direct effect on aquatic species in streams and/or tributaries receiving water from Saline Lowland and adjacent sites. Optimum hydrological function and nutrient cycling limit potential for sediment yield and nutrient loading to the adjacent aquatic ecosystems from Community Phase 1.1.

Community Phase 1.2 Wheatgrasses-Foxtail Barley-Saltgrass: Multiyear drought, with or without heavy grazing, with lack of recovery periods gives foxtail barley and other salt tolerant grasses a competitive edge. This plant community is adapted to increased salinity and is relatively stable. Every effort should be made to manage this plant community via Community Pathway 1.2A (prescribed grazing with adequate recovery periods) to move back to Plant Community Phase 1.1. Improper management such as heavy continuous season-long grazing will transition this plant community to State 2.0, increasing abundance of foxtail barley, inland saltgrass, and bare ground. Structural diversity and density reduce habitat for a wide array of migratory and resident birds.

Invertebrates: Provides similar life requisites as Community Phase 1.1. However, heavy continuous grazing with lack of recovery periods further reduces density and diversity of pollinating forb species.

Birds: Heavy continuous grazing with lack of recovery periods gives foxtail barley, inland saltgrass, and other salt tolerant grasses a competitive edge reducing density and stature of grasses.

Grassland nesting birds, favoring short statured structure, may use this plant community. Dependent upon water depth and duration, this plant community may be attractive to various shorebirds.

Mammals: This site is no longer favored by large herbivores and provides limited life requests for small herbivores.

Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.

Fish and Mussels: Provides similar life requisites as Community Phase 1.1; however, increased bare ground will yield additional sediment to nearby water bodies.

Community Phase 1.3 Bare Ground/Halophytes: This plant community phase is characterized by bare ground and halophytes. Continued heavy grazing, repeated drought, or a combination of these disturbances will shift to increased bare ground and halophytes with a reduction in perennial grasses. Moderate perennial forb stature and abundance are being replaced by short-statured halophytes. Bare ground increases and litter amounts and infiltration rates decline while soil surface temperatures increase. Although, this plant community is resilient, retaining sufficient grazing sensitive native plant species to return to the 1.1 community phase (via Community Phase Pathway 1.3A) will take long term management.

Invertebrates: A switch to mainly halophytes will have a significant impact to invertebrates due to the reduction of season-long nectar and pollen. Season-long nectar sources may be found on adjacent plant communities or ecological sites for mobile species. Increased bare ground provides increased nesting sites for bumble bees and other ground-nesting insects but, due to wetness and salinity, will not provide quality nesting sites.

Birds: Bare ground coupled with salinity will not provide adequate habitat for grassland nesting birds. Dependent upon water depth and duration, this plant community may be attractive to various shorebirds.

Mammals: Bare ground and the loss of grasses provides limited food, thermal cover, and escape cover for most mammals.

Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1. Fish and Mussels: Provides similar life requisite benefits as Community Phase 1.1.

2.0 Native/Invaded State:

Community Phase 2.1 Wheatgrasses-Cordgrasses-Nuttall’s Alkaligrass: Introduction and establishment of exotic cool-season grasses, coupled with chronic season-long or heavy late season grazing without adequate recovery periods (along Transition Pathway T1), causes native forbs to decrease in production, abundance, diversity, and richness. Bare ground has increased due to the presence of alkaligrass.

Invertebrates: Provides similar life requisites as Community Phase 1.1.

Birds: Provides similar life requisites as Community Phase 1.1.

Mammals: Provides similar life requisites as Community Phase 1.1.

Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.

Fish and Mussels: Provides similar life requisites as Community Phase 1.1.

Community Phase 2.2 Wheatgrasses-Foxtail Barley-Saltgrass: Multiyear drought (with or without heavy, long-term grazing) results in a marked decline in cordgrass and corresponding increases in foxtail barley and saltgrass.

Invertebrates: Provides similar life requisites as Community Phase 1.2.

Birds: Provides similar life requisites as Community Phase 1.2.

Mammals: Provides similar life requisites as Community Phase 1.2.

Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.

Fish and Mussels: Provides similar life requisites as Community Phase 1.2.

Community Phase 2.3 Bare Ground/Halophytes: This plant community phase is characterized by bare ground and grazing-tolerant exotic grasses and annual forbs. Continued heavy long-term grazing will shift this plant community to increased bare ground with exotic grasses (such as Kentucky bluegrass, quackgrass, and annual forbs). Native forbs may include silverleaf cinquefoil, western dock, redwool plantain, seaside arrowgrass, red swampfire, and Pursh seepweed. The forbs are mainly wind-pollinated. This plant community is resilient, retaining sufficient grazing sensitive native plant species to return to the 2.1 community phase (via Community Phase Pathway 2.3A).

Invertebrates: Provides similar life requisites as Community Phase 1.3.

Birds: Heavy, long-term grazing increase bare ground and coupled with salinity will not provide adequate habitat for grassland nesting birds.

Mammals: Heavy, long-term grazing increases bare ground; with the loss of grasses, this plant community provides limited food, thermal cover, and escape cover for most mammals.

Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.

Fish and Mussels: Provides similar life requisite benefits as Community Phase 1.1.

3.0 Invaded State:

Community Phase 3.1 Exotic Cool-Season Grasses/Exotic Forbs: Extended periods of no use and no fire, or continuous season long grazing (via Transitional Pathway T2A) results in a plant community phase dominated by smooth brome and Kentucky bluegrass with other species difficult to find on the site. Restoration Pathway R3A, through prescribed burning, chemical treatment mechanical replanting, and/or high levels of grazing management, requires remnant amounts of native warm- and cool-season and forbs to be successful. The remnant native community needs frequent prescribed burns and high levels of grazing management targeting the exotic cool-season grasses to improve competitiveness and increase vigor and density. Without intensive management, the remnant native plants will not increase adequately to transition back to State 2.0. Intensified management along the R3A Pathway will have significant short-term negative impacts on wildlife habitat; however, this is necessary to restore long-term native habitat functions.

Invertebrates: Exotic grasses limits use by beneficial insects provided in States 1.0 and 2.0. Increased litter and lack of grazing leads to limited contact between plant material and mineral soil resulting in a cooler micro-climate, which is unfavorable to most insects. Lack of nectar-producing plants and native forb and grass host plants eliminates life requisites for invertebrate species of concern in MLRA 55A. Heavy continuous season-long grazing reduces forb diversity and abundance, limiting nectar and pollen availability.

Birds: The homogeneous community phase, dominated by exotic plant species, provides limited habitat and life requisites for most obligate grassland-nesting birds. Lack of plant diversity and stature (along with increased litter and the tendency of Kentucky bluegrass and smooth brome to lay down) limits use by many grassland-nesting birds. Sharp-tailed grouse may use this plant community for lek sites and nesting cover; however, winter cover must be provided by adjacent ecological sites or plant communities. Heavy continuous season-long grazing reduces or eliminates nesting cover and insect populations for food sources.

Mammals: Litter accumulation and exotic grass cover favors thermal, protective, and escape cover for small rodents. Thermal, protective, or escape cover is limited for large mammals. Heavy continuous season-long grazing reduces or eliminates thermal cover for most mammals.

Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.

Fish and Mussels: Provides similar life requisites as Community Phase 1.1.

4.0 Go-Back State:

Community Phase 4.1 Annual/Pioneer Perennial/Exotics: These plant communities are the result of severe soil disturbance (such as cropping, recreational activity, or concentrated livestock activity for a prolonged period). Following cessation of disturbances, the resulting plant community is dominated by early pioneer annual and perennial plant species. Plant species composition and production are highly variable. Weedy plants can provide pollinator habitat along with spring and summer cover for many mammals and birds, and their young. The response by wildlife species will be dependent upon plant community composition, vegetative stature, patch size, and management activities (such as prescribed grazing, burning, inter-seeding, haying, or noxious weed control).

Successful restoration of native species along Transitional Pathway R3A can result in a native grass and forb community in State 2.0. Over time, with no management, the exotic cool-season perennial grasses (Kentucky bluegrass, smooth brome, and/or quackgrass) generally become re-established and dominate the community. Successful range planting, via Transition Pathway R4A, can result in State 2.0. Prescribe grazing and/or fire will be needed to maintain this plant community within State 2.0. Failed native range planting, along Transitional Pathway R4B, will keep this plant community within Invaded State 3.0.

Animal Community – Grazing Interpretations:

This site is well adapted to managed grazing by domestic livestock. The predominance of herbaceous plants across all plant community phases best lends these sites to grazing by cattle, but other domestic grazers with differing diet preferences may also be a consideration depending upon management objectives. Often, the current plant community does not match any particular plant community (as described in the ecological site description). Because of this, a resource inventory is necessary to document plant composition and production. Proper interpretation of this inventory data will permit the establishment of a safe, initial stocking rate for the type and class of animals and level of grazing management. More accurate stocking rate estimates should eventually be calculated using actual stocking rate information and monitoring data.

NRCS defines prescribed grazing as “managing the harvest of vegetation with grazing and/or browsing animals with the intent to achieve specific ecological, economic, and management objectives”. As used in this site description, the term ‘prescribed grazing’ is intended to include multiple grazing management systems (e.g., rotational grazing, twice-over grazing, conservation grazing, targeted grazing, etc.) provided that, whatever management system is implemented, it meets the intent of prescribed grazing definition.

The basic grazing prescription addresses balancing forage demand (quality and quantity) with available forage, varying grazing and deferment periods from year-to-year, matching recovery/deferment periods to growing conditions when pastures are grazed more than once in a growing season, implementation of a contingency (e.g., drought) plan, and a monitoring plan. When the management goal is to facilitate change from one plant community phase or state to another, then the prescription needs to be designed to shift the competitive advantage to favor the native grass and forb species.

Grazing levels are noted within the plant community narratives and pathways in reference to grazing/prescribed grazing management. “Degree of utilization” is defined as the proportion of the current years forage production that is consumed and/or destroyed by grazing animals (may refer to a single plant species or a portion or all the vegetation). “Grazing utilization” is classified as slight, moderate, full, close, and severe (see the following table for description of each grazing use category). The following utilization levels are also described in the Ranchers Guide to Grassland Management IV. Utilization levels are determined by using the landscape appearance method as outlined in the Interagency Technical Reference “Utilization Studies and Residual Measurements” 1734-3.

Utilization Level % Use Description

Slight (Light) 0-20 Appears practically undisturbed when viewed obliquely. Only choice areas and forage utilized.

Moderate 20-40 Almost all of accessible range shows grazing. Little or no use of poor forage. Little evidence of trailing to grazing.

Full 40-60 All fully accessible areas are grazed. The major sites have key forage species properly utilized (about half taken, half left). Points of concentration with overuse limited to 5 to 10 percent of accessible area.

Close (Heavy) 60-80 All accessible range plainly shows use and major sections closely cropped. Livestock forced to use less desirable forage, considering seasonal preference.

Severe > 80 Key forage species completely used. Low-value forages are dominant.

Hydrological functions

Available water is the principal factor limiting forage production on this site. Soil salinity significantly reduces the availability of water (hinders osmosis) to plants growing on the site. Under natural conditions, this site is dominated by soils in hydrologic groups B and C, but incudes some soils in groups A and D. Where the natural hydrology has been altered, the soils are predominantly in hydrologic groups B/D and C/D with some soils in group A/D. Infiltration varies from slow to moderately rapid (depending upon surface soil texture and structure); runoff potential varies from negligible to low depending on soil hydrologic group, surface texture, slope and ground cover.

Hydrological manipulation (surface or tile drainage, pumping, surface water diversion, etc.) modifies this ecological site. Under natural conditions, this ecological site includes a wide range of soil textures; after hydrologic manipulation, soil texture often becomes a more significant factor in vegetative response if the degree salinity is also reduced. Where a vegetation change has occurred; a transition to a completely different ecological site may also have occurred. The transition to an altogether different ecological site will depend upon severity of altered hydrology, soil properties, and corresponding vegetation. Due to the many variables (e.g., hydrology, type and success of drainage, etc.), impacts to the ecological site will be site-specific. As a result, each situation will require field investigation to determine what, if any, change in ecological site designation is necessary and proceed accordingly.

Without restoring hydrologic function (which may include range planting), managers need to reference state and transition models within those sites. Hydrology will need to be fully restored in Wet Meadow and Shallow Marsh ecological sites for these sites to properly function. It is recommended that managers review the appropriate State and Transition Models prior to wetland restoration.

Recreational uses

Hunting and Bird Watching: Over 113,000 acres of National Wildlife Refuges and over 77,000 acres of Waterfowl Production Areas owned and managed by the United States Fish and Wildlife Service are available for public hunting and bird watching. In addition, over 22,000 acres of North Dakota Wildlife Management Areas (WMAs), approximately 8,000 acres of North Dakota Forest Service, and thousands of acres of Department of Trust Lands are scattered throughout the central and western portions of the MLRA; these areas are available for hunting and bird watching. MLRA 55A provides a unique ruffed grouse hunting opportunity in North Dakota on wildlife management areas managed by the North Dakota Game and Fish Department and forest service lands managed by North Dakota Forest Service within the Turtle Mountain.

Camping: Three state parks are located within the MLRA including Lake Metigoshe State Park (Turtle Mt.), Grahams Island State Park (Devils Lake), and the newly designated Pembina Gorge State Park (formerly Pembina Gorge Recreation Area). These Parks provide hiking, biking, birding, canoeing, and wildlife viewing opportunities. Many local parks and private parks provide modern and primitive camping opportunities. The approximately 8,000 acres of North Dakota Forest Service provides primitive camping (no electric or water hookups) as well as fishing and canoeing access at various lakes. These forests and lakes provide access to swimming beaches, picnicking, and an extensive trail system open to hiking, mountain biking, horseback riding, snowmobiling, and cross-country skiing (not groomed). Limited primitive camping is also available on North Dakota Game and Fish Department Wildlife Management Areas.

Hiking/Biking/Horseback Riding: Hiking is permitted on most state and federally owned lands. Developed hiking and biking trails can be found on North Dakota Forest Service lands (18.6 miles), Upper Souris NWR (4.25 miles), Des Lacs NWR (8.5 miles), J. Clark NWR (3.3 miles), White Horse Hill National Game Preserve (3.6 miles), Lake Metigoshe State Park (16 miles), and Grahams Island State Park (2.1 miles; 3 miles cross country skiing). In addition, extensive biking and walking trails are found in local county and city parks. The Turtle Mountain State Recreation Area (ND Forest Service) is located six miles northwest of Bottineau. This recreation area has over 12 miles of trails open to hiking, biking, snowshoeing, horseback riding, and OHV’s.

The Pembina Gorge State Park encompasses over 2,800 acres of public land in the Pembina River Gorge. Steep valley cliffs towering over small, isolated prairies and pocketed wetlands surrounded by the largest continuous, undisturbed forest in North Dakota provide opportunities for canoeing, kayaking, hiking, biking, horseback riding, hunting, wildlife observing, birding, and downhill and cross-country skiing. Thirty miles of trails provide snowmobiling, mountain biking, and off-highway vehicles (OHV) opportunities.

Canoeing/Kayaking: Designated canoe and kayaking trails are available within the MLRA. J. Clark Sayler NWR has 12.75 miles of designated trails on the Souris River and Pembina Gorge State Park has 14.25 miles on the Pembina River. The Pembina Gorge State Park offers kayak rentals along with kayak transportation. Lake Metigoshe State Park offers canoe and kayak rentals along with standup paddleboards, pontoons, cross country skis, snowshoes, etc.

Downhill Skiing: Downhill skiing is available at Bottineau Winter Park within Turtle Mountain and Frost Fire Park at the Pembina Gorge. Full-service rental shops are available along with alpine trails ranging from beginner to expert. Conveyor lifts on the beginner hills to chairlifts are available for skiers.

International Peace Garden: The only peace garden located on the United States/Canada border, the International Peace Garden is a 2,339-acre botanical garden commemorating peace between the United States and Canada along the world’s longest unfortified border. It blooms with more than 155,000 flowers and showcases the Peace Chapel, Peace Towers, and Floral Clock. The North American Game Wardens Museum if also located within the boundaries of the International Peace Garden.

Wood products

There are no significant wood products found on this site.

Other products

Seed harvest of native plant species can provide additional income on this site.

Other information

• Further investigation is needed on the wide range of landforms and soil textures (and associated properties) and their relationship to hydrology/plant dynamics.
• Further investigation is needed on poorly drained claypan soils included in this site as compared to other soils in the site.
• Further investigation is needed on areas of this site associated with drainageways and flood plains. Harriet and Lowe occur in drainageways. Ludden, and Ryan soils occur on flood plains of streams and rivers. The impact of occasional or frequent flooding on these areas needs evaluation.
• Further investigation of areas of this site on lake shores and in shallow lake basins is needed. These areas are periodically inundated for extended periods. When many of the soil surveys were completed, these soils were not inundated; currently many of these sites are inundated and have been for many consecutive years. Major components in this site affected by recent inundation are Grano, Lallie, and Minnewaukan. Some delineations of these soils have been impacted by the construction of a dike along the shores of Devils Lake protecting some areas from flooding while maintaining inundation on other areas. Along with ecological site investigations, an SDJR project is needed for these with some soil spatial data review. Spatial data revisions may be needed. MLRA map units needing investigation are:
o Lallie silty clay loam, saline, 0 to 1 percent slopes (map unit 2q55j)
o Mauvais-Minnewaukan, saline complex, 0 to 6 percent slopes (map unit 2q556)
o Grano silty clay, saline, 0 to 1 percent slopes (map unit 2q55h)
• Further evaluation and refinement of the State-and-Transition model may be needed to identify disturbance driven dynamics. Additional states and/or phases may be required to address grazing response.
• Further documentation may be needed for plant communities in all states. Plant data has been collected in previous range-site investigations, including clipping data; however, this data needs review. If geo-referenced sites meeting Tier 3 standards for either vegetative or soil data are not available, representative sites will be selected for further investigation.
• Site concepts will be refined as the above noted investigations are completed.
• The long-term goal is to complete an approved, correlated Ecological Site Description as defined by the National Ecological Site Handbook.
• NASIS revisions needed:
o During the recently completed Ecological Site Description update, saline phases of Aeric Calciaquolls were reassigned from Saline Lowland to the Salinized State of Limy Subirrigated. Numerous components of Bearden, Fram, Glyndon, Hamerly, and Wyndmere need to be relinked, as well as one component of Moritz.

o During the recently completed Ecological Site Description update, the Sodic Subirrigated ecological site was developed; all Stirum components need to be relinked from Saline Lowland to Sodic Subirrigated.
o Three components of Harriet and one of Vallers, saline are currently linked to 53A Saline Lowland (Legacy); these need to be revised to 55A Saline Lowland.

This ESD is the best available knowledge. The site concept and species composition table have been used in the field and tested for more than five years. It is expected that as additional information becomes available revisions may be required.

Inventory data references

Information presented here has been derived from NRCS and other federal/state agency clipping and inventory data. Also, field knowledge of range-trained personnel was used. All descriptions were peer reviewed and/or field tested by various private, state and federal agency specialists. Those involved in developing this site description include: Stan Boltz, NRCS Range Management Specialist; Dave Dewald, NRCS State Biologist; Jody Forman, NRCS Range Management Specialist; Jeff Printz, NRCS State Range Management Specialist; Kevin Sedivec, Extension Rangeland Management Specialist; Shawn Dekeyser, North Dakota State University; Rob Self, The Nature Conservancy and Lee Voigt, NRCS Range Management Specialist.

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Contributors

ND NRCS: David Dewald, Jonathan Fettig, Alan Gulsvig, Mark Hayek, Chuck Lura, Jeff Printz, Steve Sieler, and Hal Weiser.

Approval

Suzanne Mayne-Kinney, 5/08/2025

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