Appendix F Detailed Cover Type Tables - USDA Rural Development

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Bemidji – Grand Rapids Biological Assessment and Evaluation In Minnesota, two specimens from the CNF and LLR have been deposited in the University of Minnesota Bell Herbarium (www.wildflowers.umn.edu). Habitats associated with each specimen are listed as mesic hardwood forests of sugar maple and basswood. Associated herbaceous species include Athyrium filixfemina, Dryopteris carthusiana, Scutellaria lateriflora, Uvularia grandiflora, and Streptopus roseus. The single most important limiting factor affecting Botrychium sp. establishment, distribution and abuncance, according to Johnson‐Groh (1999 cf. Chadde and Kudray, 2001) is the relationship that this genus has to soil mycorrhizae. Abundance, establishment, and distribution of this genus rely on the presence of and interrelationship with mycorrhizae on any given site. A number of species of Botrychiu, including B. dissectum are often present along utility corridors, suggesting this genera of fern responds positively to the disturbance associated corridor development. The suitability of these newly developed habitats is, however, likely associated with presence of mycorrhizae populations, as well as moisture availability. The invasion of exotic earthworms appears to be a significant threat to members of this genus, though the USFS indicates that the threat by earthworms to this species may be moderate. Table 4‐1 provides an assessment of potential risk factors to members of this genus. In an ongoing B. mormo monitoring effort on the Chippewa National Forest plots impacted by worms exhibited significant negative effects on B. mormo populations (Johnson‐Groh, 1999 cf. Chadde and Kudray, 2001). Species Distribution and Occurrences within the Study Area This species is known from Minnesota and Ontario south to Texas and in all states and provinces east. <strong>USDA</strong> Plants Database at: http://plants.usda.gov/java/county?state_name=Minnesota&statefip s=27&symbol=BODI2 This species is not tracked by either the CNF or DNR, though as part of past studies, specific location data has been identified for the purposes of Botrychium studies. CNF data shows one population of this species within CNF, though it is known that more populations are present but are not typically included in CNF surveys, and additional populations have been identified in field surveys used and performed for this project. Risk Factors Threats to Botrychium dissectum include road building, timber harvesting, hydrologic alteration, invasion by exotic plant species and exotic earthworm invasion. Invasion of exotic earthworms appears to represent the greatest threat to this species and the genus as a whole within the CNF and LLR area. USFS Conservation Assessments(Chadde and Kudray,2001) list as “high” the threat of earthworms to this species. While earthworms are generally assumed to have beneficial effects on soil structure, litter decomposition, soil chemistry, and nutrient cycling, their presence alters soil horizination, reducing the O (organic) layer, eliminating the E (leaching) layer, and altering the hydrologic function of soils (Chadde and Kudray, 2000a). The presence of earthworms has been shown to decrease micorrizal health and abundance, and by extension, represents a threat to all species of the genera Botrychium. Risk of exotic earthworm spread into areas where a healthy mycorrhizal and Botrychium community is present may represent a threat to this species. Additionally, the risk of direct impact to individuals due to construction is possible if the species is present at a pole location. July 2010 Species and Associated Habitat Page 4‐45
Bemidji – Grand Rapids Biological Assessment and Evaluation 4.2.5.4 Triangle Moonwort (Botrychium lanceolatum var. angustisegmentum) Botrycium lanceolatum var. angustisegmentum is listed as DNR Threatened, CNF RFSS and DRM Threatened. Species Description Botrychium lanceolatum has a stalk 6‐15 cm (2.4‐5.9 in.) long, with an unstalked frond. The frond (sterile blade) is dark green, very shinny, glabrous, and deltoid. It has two to five pairs of pinnatifid pinnae, the lowest pair much the larger (hence the common name triangle). The bud is enclosed in the stalk base. B. lanceolatum can be distinguished from B. matricariifolium (matricary grapefern) by the deltoid, usually sessile, blade with both sterile and fertile blades reflexed in bud. The variety of B. lanceolatum (S.G. Gmelin) in Minnesota is var. angustisegmentum. (Pease & Moore). Leaves of this species emerge in the spring and are divided into a sterile photosynthetic portion and a fertile spore‐bearing portion. Spores of the fertile portion mature slowly through the summer, changing to a noticeable gold color by late summer. The aboveground portion of the plant is killed by frost in the fall, sometimes as late as October. Species Habitat According to the DNR Rare Species Guide: In Minnesota, B. lanceolatum prefers moist, shady, mature northern hardwood forests, particularly in low areas. It usually occurs with Acer saccharum (sugar maple), Betula alleghaniensis (yellow birch), Fraxinus pennsylvanica (green ash), Fraxinus nigra (black ash), Quercus rubra (red oak), Tilia americana (basswood), and sometimes Thuja occidentalis (northern white cedar). The understory can be rather open and the ground cover often sparse with Athyrium angustum (lady fern) and other Botrychium species, especially B. matricariaefolium. Botrychium lanceolatum populations often occur as a few scattered individuals, but occasionally 50 or more can be found in a single site. Species Distribution and Occurrences within the Study Area Risk Factors A widely distributed plant, B. lanceolatum occurs from Newfoundland across the Canadian provinces to Yukon and Alaska, south to California, east to New Mexico, then Minnesota to the Atlantic Coast states as far south as Virginia and inland to Tennessee. The species is not noted in the central plains states west and south of Minnesota (DNR, 2009). <strong>USDA</strong> Plants Database at: http://plants.usda.gov/java/county?state_name=Minnesota&statefips =27&symbol=BOLA Botrychium lanceolatum is listed by the DNR and CNF with point data indicating 10 distinct populations identified throughout the Study Area. Threats to Botrychium lanceolatum include road building, timber harvesting, hydrologic alteration, invasion by exotic plant species, removal of mature hardwood forests, and exotic earthworm invasion. Invasion of exotic earthworms appears to represent the greatest threat to this species, and the genus as a whole within the CNF and LLR area. Herbivory and drought likely pose short term risks to this species. The single most important limiting factor affecting Botrychium sp. establishment, distribution and abuncance, according to Johnson‐Groh (1999 cf. Chadde and Kudray, 2001) is the relationship that this July 2010 Species and Associated Habitat Page 4‐46
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Appendix F Detailed Cover Type Tabl
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2006). Grassland (Surrogate) Surrog
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upland coniferous forests in the Me
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Table F-1: Vegetation Cover Types w
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Table F-2: Vegetation Cover Type wi
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Table F-4: Vegetation Cover Type wi
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Appendix G Biological Assessment an
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Bemidji - Grand Rapids Biological A
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Wilton Map Document: (\\mspe-gis-fi
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Habitat Present? Yes Observations w
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Avian Mitigation Plan 1.0 INTRODUCT
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Avian Mitigation Plan 2.0 SITE AND
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Avian Mitigation Plan 4.0 OPERATION
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Avian Mitigation Plan Leech Lake Re
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Appendix F Detailed Cover Type Tables - USDA Rural Development

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