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Region 2 Sensitive Species Evaluation Form ATTACHMENT SS2 REGION 2 SENSITIVE SPECIES EVALUATION FORM Species: Utricularia minor / Lesser Bladderpod, Lesser Bladderwort Criteria Rank Rationale Literature Citations Lesser Bladderpod occurs in the Laramie, Absaroka, Beartooth, Big Horn, Medicine • Beauvais et al. 2000 1 AD Bow and Wind River ranges in Albany, Fremont, Park, Johnson, Sheridan and • Distribution Dorn 2001 within R2 Washakie counties, Wyoming, on the Medicine Bow, Shoshone, and Bighorn National • Fertig 1997, 1998, 1999 Forests.In addition, there is a vague historic collection that could be in either Big Horn • Heidel and Jones 2006 or Johnson counties. In Nebraska, it occurs on the Samuel R. McKelvie National • Heidel 2011 Forest. It also occurs in Colorado and a historic specimen collected by McIntosh was • Heidel 2013 annotated to lesser bladderpod from the Buckhorn Mt. area in the Black Hills, South • Heidel et al. 2013 Dakota. Therefore, additional state information is necessary in order to determine its • Heidel et al in progress status in Region 2. • Hitchcock et al. 1959 • This species is appears to be restricted to open water fen habitat, including swales Massatti 2007 • and pools, at 6,600 to 10,400 feet. Its habitat is rare and localized on the landscape. In Neid 2006 eastern Colorado, it is said to occupy subalpine ponds (Boulder watershed, but very • Rocky Mountain Herbarium likely elsewhere; Weber and Wittmann2012). 2011 • USDA Forest Service 2001 Confidence in rank High • Weber and Wittmann 2012 Lesser Bladderpod is circumboreal, extending south in North America to California, • Ceska and Bell 1973 2 C Colorado, Indiana and New Jersey. In Wyoming, it is known from lands outside the • Distribution Cronquist et al. 1984Dorn outside R2 Region 2 boundary in the Yellowstone Plateau, and Jackson Hole in Teton County. 2001Hitchcock et al. 1959 • Lemly 2007, Lemly and Cooper Confidence in rank High 2011 • Taylor 1989 • Rocky Mountain Herbarium 2011 Not known. Flower production is rare, and there is not information on its capacity to • - 3 D spread by vegetative reproduction. Dispersal Capability Confidence in rank High USDA-Forest Service R2 Sensitive Species Evaluation Form Page 1 of 5 ATTACHMENT SS2 Species: Utricularia minor / Lesser Bladderpod, Lesser Bladderwort Criteria Rank Rationale Literature Citations Lesser Bladderpod is known from 37 extant records in Wyoming (32 are on national • Fertig 1997, 1998, 1999 4 BD forests of Region 2) and two historical records. Known populations seem to be in • Abundance in Fertig and Heidel 2002 R2 specialized microsites. It can be difficult to determine how numerous or frequent this • Heidel 2011 species is because it grows submerged, is not consistently visible in viewing the • Heidel 2013 surface, is sometimes entangled in mosses and detritus, and rarely flowers. This • Heidel et al. 2013 species is currently ranked “S3” in Wyoming (Heidel 2012) and S2 in Nebraska. It also • NatureServe 2002 occurs in Colorado and South Dakota but is not ranked or tracked. • WYNDD 2013 Note: Utricularia ochroleuca is a newly-recognized addition to the state flora, based on collections in Yellowstone National Park (Whipple and Hellquist, personal communication) and the Upper Green River Basin. All Wyoming specimens of Utricularia minor at RM have been verified by the FNA author, and representative species from 2012-13 WYNDD studies have also been verified by the FNA author. Confidence in rank High 5 D Not known. • - Population Trend in R2 Confidence in rank High Not known.The 1982 specimen collected by Erwin Evert in Bighorn NF was originally • -Heidel 2011 6 D determined as U. vulgaris and news that it was annotated to U. minor was not Habitat Trend in R2 available until 2011. Survey of it the Evert collection site (Preacher Rock Bog) may provide trend data, a site where the water table may be dropping. It was successfully relocated in the vicinity of a historical record in 2011 on the Pole Mountain Unit of Medicine Bow National Forest. Confidence in rank High USDA-Forest Service R2 Sensitive Species Evaluation Form Page 2 of 5 ATTACHMENT SS2 Species: Utricularia minor / Lesser Bladderpod, Lesser Bladderwort Criteria Rank Rationale Literature Citations Lesser Bladderpod may be threatened by loss or deterioration of wetland habitat. It is • Neid 2006 7 BD found in the Swamp Lake Special Botanical Area in the Shoshone National Forest and • Habitat WYNDD 2011 Vulnerability the Preacher Rock Bog Special Botanical Area in Bighorn National Forest. All other or locations are on lands managed for multiple use by the Bighorn, Medicine Bow and Modification Shoshone national forests. It also occurs in Grand Teton and Yellowstone national parks. It has been documented in stream segments that have beaver ponds in the Pole Mountain Unit of Medicine Bow NF, where beaver dam activity may have both positive and negative influences. More complete review of habitat threats and vulnerability are discussed in Neid (2006). Confidence in rank High Lesser Bladderpod is a submerged aquatic, perennial forb. Flowering and fruiting • Cronquist et al. 1984 8 D occur from July through August. • Life History Hitchcock et al. 1959 and Demographics Additional information on the species, including life history stages, population structure, longevity, mortality, pollination biology and seed biology, are not available. Confidence in rank High Initial Evaluator(s): Date: May 30, 2002 Joy Handley, Bonnie Heidel and Scott Laursen Date: February 11, 2013 Update Evaluator(s): Bonnie Heidel National Forests in the Rocky Mountain Region where species is KNOWN (K) or LIKELY(L)1 to occur: 1 Likely is defined as more likely to occur than not occur on the National Forest or Grassland. This generally can be thought of as having a 50% chance or greater of appearing on NFS lands. USDA-Forest Service R2 Sensitive Species Evaluation Form Page 3 of 5 ATTACHMENT SS2 Colorado NF/NG Kansas NF/NG Nebraska NF/NG South Dakota Wyoming NF/NG NF/NG Known Likely Known Likely Known Likely Known Likely Known Likely Arapaho-Roosevelt NF X Cimmaron NG Samuel R.McKelvie NF X Black Hills NF ? Shoshone NF X White River NF Halsey NF Buffalo Gap NG Bighorn NF X Routt NF X Nebraska NF Ft. Pierre NG Black Hills NF Grand Mesa, X Ogalala NG Medicine Bow NF X Uncompahgre, Gunnison NF San Juan NF X Thunder Basin NG Rio Grande NF Pike-San Isabel NF Comanche NG Literature cited Ceska, A. and M.A.M. Bell. 1973. Utricularia (Lentibulariaceae) in the Pacific Northwest. Madrono 22:74-84. Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren. 1984. Intermountain Flora. Vascular Plants of the Intermountain West, USA. Vol 4. Subclass Asteridae. New York Botanical Garden, Bronx, NY. Dorn, R.D. 2001. Vascular Plants of Wyoming, third edition. Mountain West Publishing, Cheyenne, WY. Fertig, W. 1998. The status of rare plants on Shoshone National Forest: 1995-97 survey results. Report prepared by the Wyoming Natural Diversity Database, Laramie, WY. Heidel, B. and G. Jones. 2006. Botanical and ecological characteristics of Fens in the Medicine Bow Mountains, Medicine Bow National Forest, Albany and Carbon Counties, Wyoming. Prepared for the Medicine Bow National Forest. Wyoming Natural Diversity Database, Laramie, WY. Heidel, B., W. Fertig, S. Mellmann-Brown and K. Houston. In progress. Fens in the Beartooth Mountains, a Technical report. Submitted in 2010. Heidel, B. 2011. Status report on sensitive plant species of fen habitats, Big Horn Mountains, north-central Wyoming. Unpublished report prepared for the Bighorn National Forest, USDA Forest Service. Wyoming Natural Diversity Database. Laramie WY. Heidel, B., J. Handley and M. Arnett. 2013. Status report on sensitive plant species of of Pole Mountain wetlands. Prepared for the Medicine Bow National Forest. Wyoming Natural Diversity Database, Laramie, WY. Heidel, B. 2013. Sensitive plant survey in the Dickinson Park area, Shoshone National Forest. Prepared for Shoshone National Forest. Wyoming Natural Diversity Database. Laramie, WY. USDA-Forest Service R2 Sensitive Species Evaluation Form Page 4 of 5 ATTACHMENT SS2 Hitchcock, C.L., A. Cronquist, and M. Ownbey. 1959. Pt. 4. Ericaceae through Campanulaceae. In: C.L. Hitchcock, A. Cronquist, M. Ownbey, and J.W. Thompson. Vascular Plants of the Pacific Northwest. University of Washington Publications in Biology 17(4):1-510. Lemly, J.M. 2007. Fens of Yellowstone National Park, USA: Regional and Local Controls over Plant Species Distribution. Masters Thesis, Colorado State University. Fort Collins, CO. Lemly, J. M and D.J. Cooper. 2011. Multiscale factors control community and species distribution in mountain peatlands. Botany 89: 689-713. NatureServe. 2002. Explorer – an encyclopedia of life. Plant and animal data posted at www.natureserveexplorer.org, Arlington, VA. Neid, S.L. (2006, May 15). Utricularia minor L. (lesser bladderwort): A Technical Conservation Assessment. [Online]. USDA Forest Service, Rocky Mountain Region. Available: http://www.fs.fed.us/r2/projects/scp/assessments/ [date of access]. Rossbach, G.B. 1939. Aquatic Utricularias. Rhodora 41 (484):113-128. Taylor, P. 1989. The genus Utricularia - a taxonomic monograph. Kew Bulletin Addtl. Series XIV. Royal Botanic Gardens, Kew. 724 pp. Rocky Mountain Herbarium. 2013. RM Specimen database. Posted electronically at: http://www.rmh.uwyo.edu/ USDA Forest Service – Region 2. 2001. “Wyoming plant species” evaluation list and criteria provided to Wyoming Natural Diversity Database. Denver, CO. Weber, W.A. and R.C. Wittman. 2012. Colorado Flora – Eastern Slope, fourth edition. University Press of Colorado. Whipple, J. and B. Hellquist. 2010. Personal communication to B. Heidel. Wyoming Natural Diversity Database. 2013. Ongoing documentation of sensitive species distribution, biology, status, and references for the state of Wyoming. University of Wyoming, Laramie. USDA-Forest Service R2 Sensitive Species Evaluation Form Page 5 of 5 .
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