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Draba Fladnizensis SPECIES: Scientific [common] Draba fladnizensis - Wulfen [Austrian Draba] Forest: Salmon–Challis National Forest Forest Reviewer: Jessica M Dhaemers; Brittni Brown; John Proctor Date of Review: 09/25/2017; 14 February 2018; 19 March 2018 Forest concurrence (or YES recommendation if new) for inclusion of species on list of potential SCC: (Enter Yes or No) FOREST REVIEW RESULTS: 1. The Forest concurs or recommends the species for inclusion on the list of potential SCC: Yes_X__ No___ 2. Rationale for not concurring is based on (check all that apply): Species is not native to the plan area _______ Species is not known to occur in the plan area _______ Species persistence in the plan area is not of substantial concern _______ FOREST REVIEW INFORMATION: 1. Is the Species Native to the Plan Area? Yes _X_ No___ If no, provide explanation and stop assessment. 2. Is the Species Known to Occur within the Planning Area? Yes _X _ No___ If no, stop assessment. Table 1. All Known Occurrences, Years, and Frequency within the Planning Area Year Number of Location of Observations (USFS Source of Information Observed Individuals District, Town, River, Road Intersection, HUC, etc.) Date First Not Challis National Forest, Lost IDFG Element Occurrence EO Observed: reported for River Ranger District Number: 1 1987 1987. About EO_ID: 771 75 plants Kane Lake Cirque proposed Old EO_ID: 2661 Date Last observed in Special Interest Botanical Area: Observed: 1991. northern end of the Pioneer July 26, Mountains, about 13 air miles 1991 NE of Ketchum. Mesic bottom and mid-slopes, flat and N-aspects; sandy sites on gneiss parent material. 9,400-9,700 feet in elevation. July 18, Less than Salmon–Challis National Forest, Irwin, J. J. 2014. “A Floristic 2011 25 plants Lost River Ranger District Inventory of East-Central Idaho, Year Number of Location of Observations (USFS Source of Information Observed Individuals District, Town, River, Road Intersection, HUC, etc.) U.S.A.” Master’s thesis, Lost River Range: confluence of University of Wyoming, Pass Creek and Blue Jay Canyon, Laramie. 8.8 air miles ENE of Mackay. Custer County. RMH 2017 – see full citation below table. Mesic solid rock on barren ground, 6-degree slope, W aspect, limestone geology. 6,428 feet in elevation. Collection #6454. Note that Irwin (2014) identified as D. f. var. pattersonii1. July 22, Less than Salmon–Challis National Forest, Irwin, J. J. 2014. “A Floristic 2011 25 plants Lost River Ranger District Inventory of East-Central Idaho, U.S.A.” Master’s thesis, Lemhi Range: Middle Canyon University of Wyoming, circa 1.3 miles N of parking area, Laramie. 25.5 air miles NE of Arco. Butte County. RMH 2017 – see full citation below table. Mesic solid rock on barren ground, 16-degree slope, S aspect, limestone geology. 7,426 feet in elevation. Collection #6653. Note that Irwin (2014) identified as D. f. var. pattersonii1. 1 the IDFG EO does not specify a variety of this species, while the observations made by Irwin and included in the RMH database are identified as D. f. var. pattersonii. For the purposes of this assessment, this variety was included in the taxon D. fladnizensis. RMH (Rocky Mountain Herbarium). 2017. RM Herbarium Specimen Database – Query: Draba fladnizensis. Internet website: http://rmh.uwyo.edu/data/results.php?Genus=Draba&Species=fladnizensis&Sort1=AccessionNumber&S ortOrder1=ASC&Limit=100. Accessed on August 31, 2017. a. Are all Species Occurrences Only Accidental or Transient? Yes___ No_ X _ If yes, document source for determination and stop assessment. b. For species with known occurrences on the Forest since 1990, based on the number of observations and/or year of last observation, can the species be presumed to be established or becoming established in the plan area? Yes_ X_ No___ If no, provide explanation and stop assessment c. For species with known occurrences on the Forest predating 1990, does the weight of evidence suggest the species still occurs in the plan area? Yes___ No___ Provide explanation for determination: N/A. Occurrences have been recorded since 1990. If determination is no, stop assessment d. Map 1, Austrian Draba Range in Idaho and surrounding states and provinces (NRCS 2017) National Resources Conservation Service (NRCS). 2017. Draba fladnizensis Wulfen Austrian draba. Internet website: https://plants.usda.gov/core/profile?symbol=DRFL. Accessed on September 1, 2017. e. Map 2, Austrian Draba observations on the Salmon–Challis National Forest (Idaho Fish and Wildlife Information System [January 2017]) 3. Is There Substantial Concern for the Species’ Capability to persist Over the Long-term in the Plan Area Based on Best Available Scientific Information? Table 2. Status summary based on existing conservation assessments Entity Status/Rank (include definition if Other) Global Rank G4—Apparently secure (Uncommon but not rare; some cause for long-term concern due to declines or other factors)1 State Rank S1—Critically imperiled (At very high risk of extinction due to extreme rarity [often 5 or fewer populations], very steep declines, or other factors)1 USDA Forest Region 1: Not listed2 Service Region 4: Not listed3 USDI FWS Not listed as a candidate species4 Other Idaho Native Plant Society: 2016 – on list, not yet ranked5; 2011 – State Priority 2 (Taxa likely to be classified as Priority 1 within the foreseeable future in Idaho, if factors contributing to their population decline or habitat degradation or loss continue)6 BLM: Not listed7 1. Idaho Natural Heritage Program. 2016. IDNHP Tracked Plant Species 2016. Accessed January 12, 2018 2. USFS Region 1. 2011. 2011 Sensitive Species List Idaho and Montana. Website: http://fsweb.r1.fs.fed.us/wildlife/wwfrp/TESnew.htm. Accessed January 10, 2017. 3. USFS Region 4. 2016. Proposed, Endangered, Threatened, and Sensitive Species List. On file. Accessed January 11, 2017. 4. USFWS. 2017. Candidate species believed to or known to occur in Idaho. Website: https://ecos.fws.gov/ecp0/reports/species-listed-by-state-report?state=ID&status=candidate. Accessed January 12, 2018. 5. Idaho Native Plant Society. 2016. INPS Rare Plant List May 2016. https://idahonativeplants.org/rare-plants-list/ Accessed January 10, 2018. 6. Idaho Native Plant Society. 2011. Results of the twenty-fifth Idaho Rare Plant Conference – The Idaho Native Plant Society rare plant list. Website: https://idahonativeplants.org/rpc/pdf/2011_Results_IRPC_v2.2.pdf. Accessed on January 11, 2018. 7. BLM. 2016. Bureau of Land Management Idaho Special Status Plants List Aug 2016. On file. Accessed 15 January, 2018. Table 3. Status summary based on best available scientific information. Species (Scientific and Common Name): Draba fladnizensis (Austrian draba) Criteria Rank Rationale Literature Citations 1 A Austrian draba is known from only three locations on the Forest, all on IDFG. 2017. Idaho Fish and Wildlife Distribution on the Lost River Ranger District (IDFG 2017; RMH 2017), suggesting the Information System, Species Diversity Salmon–Challis species is scarce (Rank A). Although, a floristic inventory of the SCNF took Database, Idaho Natural Heritage National Forest place (Irwin 2014), targeted systematic surveys have not been Data. Accessed on February 27, 2017. conducted. Potential habitat (see Criterion 6) is naturally patchy and Irwin, J. J. 2014. “A Floristic Inventory isolated on the Forest. of East-Central Idaho, U.S.A.” Master’s thesis, University of Wyoming, Confidence in Rank: High, Medium, or Low Laramie. RMH (Rocky Mountain Herbarium). 2017. RM Herbarium Specimen Database – Query: Draba fladnizensis. Internet website: http://rmh.uwyo.edu/data/results.php ?Genus=Draba&Species=fladnizensis& Sort1=AccessionNumber&SortOrder1= ASC&Limit=100. Accessed on August 31, 2017. 2 C Austrian draba is a circumpolar species, widely distributed outside of the RMH (Rocky Mountain Herbarium). Distribution in SCNF (Rank C). Austrian draba occurs in several other western US states, 2017. RM Herbarium Specimen surrounding including Colorado, Utah, and Wyoming. In North America, it ranges from Database – Query: Draba fladnizensis. geographic area Alaska, across Canada to Greenland; it also occurs in central and Internet website: southern Europe and Asia (RMH 2017, FNA 2017). http://rmh.uwyo.edu/data/results.php ?Genus=Draba&Species=fladnizensis& Sort1=AccessionNumber&SortOrder1= Confidence in Rank: High, Medium, or Low ASC&Limit=100. Accessed on August 31, 2017. FNA (Flora of North America). 2017. Draba fladnizensis in Flora of North Species (Scientific and Common Name): Draba fladnizensis (Austrian draba) Criteria Rank Rationale Literature Citations America @ efloras.org. Internet website: http://www.efloras.org/florataxon.asp x?flora_id=1&taxon_id=200009446. Accessed on September 1, 2017. 3 B Literature describing the dispersal capability of Austrian draba is not Chambers, J. C., and J. A. MacMahon. Dispersal available; however, dispersal characteristics may be inferred by 1994. A Day in the Life of a Seed: Capability examining literature available for other alpine Draba species as well as Movements and Fates of Seeds and general dispersal strategies for vascular species that occur in alpine Their Implications for Natural and environments. Managed Systems. Annual Review of Ecology and Systematics 25:263-292. Generally, in alpine and tundra ecosystems, seeds are small and few taxa Ladyman, J. A. R. 2004a. Draba invest in specialized seed dispersal adaptations; taxa generally take exunguiculata (O. E. Schultz) C. L. advantage of wind for seed dispersal (Chambers and MacMahon 1994). Hitchcock (Garys Peak Draba): A Technical Conservation Assessment. In technical conservation assessments conducted for two rare Draba Prepared for the USDA Forest Service, species of the Rocky Mountains, Garys Peak draba (D. exunguiculata), Rocky Mountain Region, Lakewood, and Gray’s draba (D. grayana) (Ladyman 2004a; 2004b) indicated that CO. seed dispersal mechanisms are unknown, but that short-distance dispersal by winds may be an important factor in dispersal. Running Ladyman, J. A. R. 2004b. Draba water from melting snowpack and precipitation may also move seeds grayana (Rydb.) C.
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