A floristic survey of the Boulder Mountain Park: with notes on its conservation and management (Boulder, Colorado, U.S.A.)
DOI:
https://doi.org/10.17348/jbrit.v13.i1.852Abstract
The City of Boulder Mountain Park sits in the eastern foothills of the northern Front Range of Colorado. Approximately 7000 acres (2800 ha) in extent, the study area is characterized by a foothills and montane vegetation and flora, predominantly of western North American distribution. Situated at the interface of the Great Plains and the Rocky Mountains, the flora of the Mountain Park is distinguished by a wealth of species with eastern woodland affinities, as well as a number of southern Rocky Mountain species endemic to the Front Range. Six hundred and ninety-eight (698) species of vascular plants in 426 genera and 100 families are documented in this survey. Twenty (20) of the plants are listed as Species of Special Concern by the Colorado Natural Heritage Program, with an additional 26 listed as sensitive by the City of Boulder Open Space and Mountain Parks Department (OSMP). Introduced non-native species constitute 21% of the flora (147 species), a figure that exaggerates their ecological role in the Park; less than a dozen introduced species are of serious concern in their impact upon native diversity. The Mountain Park is viewed by many as the crown jewel of the City’s OSMP system, and serves as a model for public land management across other open spaces in urban areas nationwide. These forested foothills, with their prominent relief and associated diversity of habitats, serve as one of the last low-elevation nature refuges along the Colorado Front Range. With the increasing urbanization of the region and the loss of biological diversity worldwide, the wisdom of the Boulder community in protecting this landscape is becoming ever more apparent. This report presents a thoroughly revised checklist of the flora of the Boulder Mountain Parks since the area was last inventoried in 1993.
References
Ackerfield, J. 2015. Flora of Colorado. Bot. Misc. 41. Botanical Research Institute of Texas Press, Fort Worth, U.S.A.
Allen, C.D., D.D. Brershears, & N.G. McDowell. 2015. On underestimation of global vulnerability to tree mortality and forest die-off from hotter drought in the Anthropocene. Ecosphere 6(8):129. http://dx.doi.org/10.1890/ES15-00203.1
Allred, K. & R.D. Ivey. 2012. Flora Neomexicana III, Lulu Press, U.S.A.
Axelrod, D.I. 1958. Evolution of the madro-tertiary geoflora. Bot. Rev. 24(7):433–509.
Barry, R.G. 1973. A climatological transect on the eastern slope of the Front Range, Colorado. Arctic and Alpine Res. 5:89–110.
BoulderCast. 2017. The 2013 Boulder flood: Four years and three billion dollars later. [https://www.bouldercast.com/the-2013-boulder-flood-two-years-and-three-billion-dollars-later/]
Boulder County Comprehensive Plan: Goals, policies, and map elements. 2018. Boulder County Land Use Department. [https://assets.bouldercounty.org/wp-content/uploads/2018/10/bccp-boulder-county-comprehensive-plan.pdf]
Bridge, R. 2004. Geology of Boulder County. Lone Eagle Publications, Boulder, Colorado, U.S.A.
Callahan, W.G. 1986. The Boulder weather log. Upslope Press, Boulder, Colorado, U.S.A.
Ceballos, G., et al. 2017. Biological annihilation via the ongoing sixth mass extinction signaled by vertebrate population losses and declines. www.pnas.org/cgi/doi/10.1073/pnas.1704949114
Chronic, J. & H. Chronic. 1972. Prairie, peak, and plateau. Colo. Geol. Surv. Bull. 32.
Clark, D. 2014. Floristic inventory of White Rocks Open Space. Report submitted to City of Boulder OSMP.
COLO (University of Colorado Herbarium). 2017. https://botanydb.colorado.edu/
Colorado Natural Heritage Program (CNHP). 2009. Survey of critical biological resources in Boulder County, Colorado 2007–2008. https://cnhp.colostate.edu/wp-content/uploads/download/documents/2009/BoulderCoReportFINAL_6-26-2009.pdf
Colorado Natural Heritage Program (CNHP). 2017. CNHP tracked vascular plant species. http://www.cnhp.colostate.edu/download/list/vascular.asp. Accessed 4 July 2017.
Cooper, D.J., ed. 1984. Ecological survey of the City of Boulder, Colorado Mountain Parks. (Unpublished manuscript in Herbarium COLO).
Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, & P.K. Holmgren. 1972. Intermountain flora, Vol. 1 (and 7 subsequent vols.). Columbia Univ. Press, New York, U.S.A.
Daniels, F.P. 1911. Flora of Boulder, Colorado and vicinity. Univ. Missouri Stud. 2(2):1–311.
Dannen, K. 2012. Hiking Rocky Mountain National Park: Including Indian Peaks Wilderness. Falcon Press, Nashville, Tennessee, U.S.A.
Daubenmire, R.D. 1968. Plant communities. Harper and Row, New York, U.S.A.
Dodds, G.S. & W.W. Robbins. 1908. Studies of mesa and foothills vegetation. Univ. Colo. Stud. 6(1):1–76.
Dorn, R.D. 1977. Flora of the Black Hills. Mountain West Publishing, Cheyenne, Wyoming, U.S.A.
Dorn, R.D. 2001. Vascular plants of Wyoming. 3rd ed. Mountain West Publishing, Cheyenne, Wyoming, U.S.A.
Flora of North America Editorial Committee, eds. 1993+. Flora of North America north of Mexico. 20+ vols. New York and Oxford, U.S.A. www.eFloras.org
Froiland, S.G. 1952. The biological status of Betula andrewsii A. Nels. Evolution 6:268–282.
Froiland, S.G. 1978. Natural history of the Black Hills. Center for Western Studies, Sioux Falls, South Dakota, U.S.A.
Funk, V.A. 2006. Floras: A model for biodiversity studies or a thing of the past? Taxon 55(3):581–588.
Gleason, H.A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, New York, U.S.A.
Goff, G.F. G.A. Dawson, & J.J. Rochow. 1982. Site examination for threatened and endangered plant species. Envir. Managem. 6:307–316.
Great Plains Flora Association. 1986. Flora of the Great Plains. Univ. Press of Kansas, Lawrence, U.S.A.
Harrington, G.D. 1954. Manual of the plants of Colorado. Swallow Press Inc. for Sage Books, Chicago, Illinois, U.S.A.
Hitchcock, C.L. & A. Cronquist. 1973. Flora of the Pacific Northwest. Univ. of Washington Press, Seattle, U.S.A.
Hogan, T. 1989. A survey of plants of special concern in Long Canyon, Panther Canyon, Greenman Springs area, and tributary canyons and gulches in the City of Boulder Mountain Parks, Boulder, Colorado. Report submitted to City of Boulder OSMP.
Hogan, T. 1990. Boulder Mountain Parks: Floristic survey, vegetation, and conservation management. Report submitted to City of Boulder OSMP.
Hogan, T. 1993. A floristic survey of the Boulder Mountain Parks, Boulder, Colorado. Natural History Inventory of Colorado, No. 13. University of Colorado Museum, Boulder, U.S.A.
Hogan, T. 1994. A floristic inventory of the Doudy Draw/Eldorado Mountain Property, City of Boulder Open Space, Boulder, Colorado. Report submitted to City of Boulder OSMP.
Hogan, T. 1995. A report on the vegetation of the Flatirons Area: Boulder Mountain Parks, Boulder, Colorado. Report submitted to City of Boulder OSMP.
Hogan, T. 1997. A survey of plants of special concern in the Boulder Mountain Parks. Report submitted to City of Boulder OSMP.
Hultén, E. 1968. Flora of Alaska and neighboring territories. Stanford Univ. Press, Stanford, California, U.S.A.
Institute of Museum and Library Services (IMLS). 2018. Building digital collections and infrastructure for the 21st century at the University of Colorado Herbarium (MA-30-14-0324-14). https://www.imls.gov/grants.
Jones, S. 1990. Managing Boulder Mountain Parks ecosystems for bird and mammal populations. Report submitted to City of Boulder Mountain Parks.
Kearney, T.H. & R.H. Peebles. 1960. Arizona flora, 2nd ed. Univ. of California Press, Berkley and Los Angeles, California, U.S.A.
Lovering, T.S. & E.N. Goddard. 1950. Geology and ore deposits of the Front Range, Colorado. U.S. Geol. Surv. Prof. Paper. 223.
Marr, J.W. 1961. Ecosystems of the east slope of the Front Range in Colorado. Univ. Colo. Stud., Biol. 8. Boulder, Colorado, U.S.A.
Martin, W.C. & C.R. Hutchins. 1981. A flora of New Mexico. J. Cramer, Vaduz, Germany.
Metro Denver Economic Development Inc. 2017. [http://www.metrodenver.org/do-business/demographics/population/]
Mueller-Dombois, D. & H. Ellenberg. 1974. Aims and methods of vegetation ecology. Wiley Publishing, New York, U.S.A.
National Science Foundation (NSF). 2018. Advancing Digitization of Biodiversity Collections ADBC) [https://www.nsf.gov/funding/pgm_summ.jsp?pims_id=503559] Digitization TCN: Collaborative Research: Using herbarium data to document plant niches in the high peaks and high plains of the Southern Rockies - Past, present, and future (NSF #1702516).
NatureServe. 2017. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.0. NatureServe, Arlington, Virginia, U.S.A. http://explorer.natureserve.org.
OSMP. 2009. City of Boulder Open Space and Mountain Parks West Trail Study Area natural resource inventory report. Final draft August 2009. [https://www-static.bouldercolorado.gov/docs/wtsa-nr-inventory-report-pdf]
OSMP. 2011. City of Boulder Open Space and Mountain Parks West Trail Study Area Plan. [https://www-static.bouldercolorado.gov/docs/west-tsa-plan-1-201304101028.pdf]
OSMP. 2106. Boulder Mountain Park vegetation map: Conservation targets. OSMP working files.
OSMP. 2018. Master Plan: Systems Overview. [https://www-static.bouldercolorado.gov/docs/180928_osmpmp-system-overview-report-revised-1-201809141359.pdf?_ga=2.234463326.1185442124.1545254468-1177049231.1541006828]
Peet, R.K. 1978. Forest vegetation of the Colorado Front Range: Patterns of species diversity. Vegetatio 37(2):65–78.
Peet, R.K. 1981. Forest vegetation of the Colorado Front Range. Vegetatio 45:3–75.
Rother, M.T. & T.T. Veblen. 2016. Limited conifer regeneration following wildfires in dry ponderosa pine forests of the Colorado Front Range. Ecosphere 7(12):e01594. 10.1002/ecs2.1594
SEINet. 2018. Southwestern Environmental Information Network. http://swbiodiversity.org/seinet/#
Sherriff, R.L., R.V. Platt, T.T. Veblen, T.L. Schoennagel, M.H. Gartner. 2014. Historical, observed, and modeled wildfire severity in montane forests of the Colorado Front Range. PLoS ONE 9(9): e106971. doi:10.1371/journal.pone.0106971
Tripp, E.A. 2015. Lichen inventory of White Rocks Open Space (Boulder, Colorado). Western North American Naturalist 75:301–10. http://dx.doi.org/10.3398/064.075.0307
Tripp, E.A. 2016. Field guide to the lichens of White Rocks (Boulder, Colorado). Univ. Press of Colorado, Boulder, U.S.A.
Tripp, E.A. & E.K. Hoagland. 2013. Typifying an era in biology through synthesis of biodiversity information: Achievements and impediments. Taxon 62(5):899–911.
U.S. Climate Data. 2017. [Version 2.0] Climate data for Boulder, Colorado, Lat.: 39.9919, Long.: 105.266. www.usclimatedata.com/climate/boulder/colorado/united-states/usco0456
USDA, NRCS. 2017. The PLANTS Database [http://plants.usda.gov]. National Plant Data Team, Greensboro, North Carolina, U.S.A.
USNVC [United States National Vegetation Classification]. 2016. United States National Vegetation Classification Database, V2.0. Federal Geographic Data Committee, Vegetation Subcommittee, Washington, DC, U.S.A. http://usnvc.org
Veblen, T.T. & D.C. Lorenz. 1990. The Colorado Front Range: A century of ecological change. Univ. of Utah Press, Salt Lake, U.S.A.
Vestal, A.G. 1917. Foothills vegetation in the Colorado Front Range. Bot. Gazette 64:353–385.
Vestal, A.G. 1919. Phytogeography of an eastern mountain front in Colorado. Bot. Gazette 68:153–193.
Weber, W.A. 1965. Plant geography in the Southern Rocky Mountains. In: H.E. Wright & D.G. Frey, eds. The Quaternary of the United States. Princeton Univ. Press, Princeton, New Jersey, U.S.A. Pp. 453–468.
Weber, W.A. 1976. Rocky Mountain flora. 5th ed. Colo. Assoc. UNIV. Press, Boulder, Colorado, U.S.A.
Weber, W.A. 1995. Checklist of vascular plants, Boulder County, Colorado. Natural History Inventory of Colorado, No. 16. UNIV. of Colorado Museum, Boulder, Colorado, U.S.A.
Weber, W.A. 2003. The Middle Asian element in the Southern Rocky Mountain flora of the western United States: A critical biogeographical review. J. Biogeog. 30:649–685.
Weber, W.A. & R.C. Wittmann. 1992. Catalog of the Colorado flora: A biodiversity baseline. UNIV. Press of Colorado, Niwot, Colorado, U.S.A.
Weber, W.A. & R.C. Wittmann. 2001. Colorado flora: Eastern slope. 3rd ed. UNIV. Press of Colorado, Niwot, Colorado, U.S.A.
Weber, W.A. & R.C. Wittmann. 2012 Colorado flora: Eastern slope. 4th ed. UNIV. Press of Colorado, Niwot, Colorado, U.S.A.
Welsh, S. 1993. A Utah flora. Brigham Young Univ., Provo, Utah, U.S.A.
White, A.S. 1985. Presettlement regeneration patterns in a southwestern ponderosa pine stand. Ecology 66:589–594.
Wilson, E.O. 2016. Half-Earth: Our planet’s fight for life. Liveright Publishing Corporation, New York, U.S.A.
