Predicting fire-based perennial bunchgrass mortality in big sagebrush plant communities
Chad S. Boyd A B , Kirk W. Davies A and April Hulet A
+ Author Affiliations
- Author Affiliations
A USDA Agricultural Research Service, Eastern Oregon Agricultural Research Center 67826-A, Highway 205, Burns, OR 97720, USA.1
B Corresponding author. Email: chad.boyd@oregonstate.edu
International Journal of Wildland Fire 24(4) 527-533 https://doi.org/10.1071/WF14132
Submitted: 25 July 2014 Accepted: 24 November 2014 Published: 26 March 2015
Abstract
Maintenance and post-fire rehabilitation of perennial bunchgrasses is important for reducing the spread of exotic annual grass species in big sagebrush plant communities. Post-fire rehabilitation decisions are hampered by a lack of tools for determining extent of fire-induced perennial grass mortality. Our objective was to correlate post-fire characteristics with perennial bunchgrass mortality at the plant and plant community scales. We recorded basal area, percent char, depth of burn and soil colour for 174 bunchgrasses across four ecological sites after a 65 000 ha wildfire in south-east Oregon and assessed plant mortality. Mortality was correlated with post-fire soil colour and ecological site; soil colours (black and grey) associated with pre-fire shrub presence had up to five-fold higher mortality than brown soils typical of interspace locations. Models incorporating depth of burn and soil colour correctly predicted mortality for 90% of individual plants; cover of brown soil explained 88% of the variation in bunchgrass mortality at the plant community scale. Our results indicate that soil colour and depth of burn are accurate predictors of bunchgrass mortality at individual plant and plant community scales and could be used to spatially allocate post-fire bunchgrass rehabilitation resources.
Additional keywords: annual grass, fire severity, post-fire rehabilitation, sagebrush, wildfire.
References
Ambrosia VG, Wegener SS, Sullivan DV, Buechel SW, Brass JA, Dunagan SE, Higgins RG, Hildum EA, Schoenung SM (2003) Demonstrating UAV-acquired real-time thermal data over fires. Photogrammetric Engineering and Remote Sensing 69, 391–402.| Demonstrating UAV-acquired real-time thermal data over fires.Crossref | GoogleScholarGoogle Scholar |
Bailey AW, Anderson ML (1980) Fire temperatures in grass, shrub and aspen forest communities of Central Alberta. Journal of Range Management 33, 37–40.
| Fire temperatures in grass, shrub and aspen forest communities of Central Alberta.Crossref | GoogleScholarGoogle Scholar |
Bradley BA, Houghton RA, Mustard JF, Hamburg SP (2006) Invasive grass reduces aboveground carbon stocks in shrublands of the Western US. Global Change Biology 12, 1815–1822.
| Invasive grass reduces aboveground carbon stocks in shrublands of the Western US.Crossref | GoogleScholarGoogle Scholar |
Boyd CS, Davies KW (2010) Shrub microsite influences post-fire perennial grass establishment. Rangeland Ecology and Management 63, 248–252.
| Shrub microsite influences post-fire perennial grass establishment.Crossref | GoogleScholarGoogle Scholar |
Boyd CS, Davies KW (2012a) Spatial variability in cost and success of revegetation in a Wyoming big sagebrush community. Environmental Management 50, 441–450.
| Spatial variability in cost and success of revegetation in a Wyoming big sagebrush community.Crossref | GoogleScholarGoogle Scholar | 22773069PubMed |
Boyd CS, Davies KW (2012b) Differential seedling performance and environmental correlates in shrub canopy vs. interspace microsites. Journal of Arid Environments 87, 50–57.
| Differential seedling performance and environmental correlates in shrub canopy vs. interspace microsites.Crossref | GoogleScholarGoogle Scholar |
Boyd CS, Svejcar TJ (2011) The influence of plant removal on succession in Wyoming big sagebrush. Journal of Arid Environments 75, 734–741.
| The influence of plant removal on succession in Wyoming big sagebrush.Crossref | GoogleScholarGoogle Scholar |
Britton CM, McPherson GR, Sneva FA (1990) Effects of burning and clipping on five bunchgrasses in eastern Oregon. The Great Basin Naturalist 50, 115–120.
Bureau of Land Management (2013) Long Draw/Miller homestead fire review. Available at http://www.blm.gov/or/news/files/long-draw.pdf. [Verified 15 May 2014].
Chambers JC, Roundy BA, Blank RR, Meyer SE, Whittaker A (2007) What makes Great Basin sagebrush ecosystems invasible by Bromus tectorum? Ecological Monographs 77, 117–145.
| What makes Great Basin sagebrush ecosystems invasible by Bromus tectorum?Crossref | GoogleScholarGoogle Scholar |
Chambers JC, Miller RF, Grace JB, Pyke DA, Bradley B, Hardegree S, D’Antonio C (2014a) Resilience to stress and disturbance, and resistance to Bromus tectorum L. invasion in the cold desert shrublands of western North America. Ecosystems 17, 360–375.
| Resilience to stress and disturbance, and resistance to Bromus tectorum L. invasion in the cold desert shrublands of western North America.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC2cXjslWntrc%3D&md5=8b1ce0f1cea8048b501ecf5ec33e5e14CAS |
Chambers JC, Miller RF, Board DI, Grace JB, Pyke DA, Roundy BA, Schupp EW, Tausch RJ (2014b) Resilience and resistance of sagebrush ecosystems: implications for state and transition models and management treatments. Rangeland Ecology and Management 67, 440–454.
| Resilience and resistance of sagebrush ecosystems: implications for state and transition models and management treatments.Crossref | GoogleScholarGoogle Scholar |
Conrad CE, Poulton CE (1966) Effect of a wildfire on Idaho fescue and bluebunch wheatgrass. Journal of Range Management 19, 138–141.
| Effect of a wildfire on Idaho fescue and bluebunch wheatgrass.Crossref | GoogleScholarGoogle Scholar |
Davies KW (2008) Medusahead dispersal and establishment in sagebrush steppe plant communities. Rangeland Ecology and Management 61, 110–115.
| Medusahead dispersal and establishment in sagebrush steppe plant communities.Crossref | GoogleScholarGoogle Scholar |
Davies KW (2011) Plant community diversity and native plant abundance decline with increasing abundance of an exotic annual grass. Oecologia 167, 481–491.
| Plant community diversity and native plant abundance decline with increasing abundance of an exotic annual grass.Crossref | GoogleScholarGoogle Scholar | 21509533PubMed |
Davies KW, Bates JD, Miller RF (2007) The influence of Artemisia tridentate ssp. wyomingensis on microsite and herbaceous vegetation heterogeneity. Journal of Arid Environments 69, 441–457.
| The influence of Artemisia tridentate ssp. wyomingensis on microsite and herbaceous vegetation heterogeneity.Crossref | GoogleScholarGoogle Scholar |
Davies KW, Svejcar TJ, Bates JD (2009) Interaction of historical and nonhistorical disturbances maintains native plant communities. Ecological Applications 19, 1536–1545.
| Interaction of historical and nonhistorical disturbances maintains native plant communities.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD1MnjvVSgsw%3D%3D&md5=d2bec71c8d7136a42c6f46ff20dd5ad4CAS | 19769101PubMed |
Davies KW, Boyd CS, Beck JL, Bates JD, Svejcar TJ, Gregg MA (2011) Saving the sagebrush sea: an ecosystem conservation plan for big sagebrush plant communities. Biological Conservation 144, 2573–2584.
| Saving the sagebrush sea: an ecosystem conservation plan for big sagebrush plant communities.Crossref | GoogleScholarGoogle Scholar |
Fulé PZ (2008) Does it make sense to restore wildland fire in changing climate? Restoration Ecology 16, 526–531.
| Does it make sense to restore wildland fire in changing climate?Crossref | GoogleScholarGoogle Scholar |
Korfmacher JL, Chambers JC, Tausch RJ, Roundy BA, Meyer SE, Kitchen S (2003) Technical note: a technique for conducting small-plot burn treatments. Journal of Range Management 56, 251–254.
| Technical note: a technique for conducting small-plot burn treatments.Crossref | GoogleScholarGoogle Scholar |
Lentile LB, Holden ZA, Smith AMS, Falkowski MJ, Hudak AT, Morgan P, Lewis SA, Gessler PE, Benson NC (2006) Remote sensing techniques to assess active fire characteristics and post-fire effects International Journal of Wildland Fire 15, 319–345.
| Remote sensing techniques to assess active fire characteristics and post-fire effectsCrossref | GoogleScholarGoogle Scholar |
Meinke CA, Knick ST, Pyke DA (2009) A spatial model to prioritize sagebrush landscapes in the Intermountain West (USA) for restoration. Restoration Ecology 17, 652–659.
| A spatial model to prioritize sagebrush landscapes in the Intermountain West (USA) for restoration.Crossref | GoogleScholarGoogle Scholar |
National Oceanic and Atmospheric Administration 2012. NOAA National Climatic Data Center, State of the Climate: National Overview for July 2012. Published online August 2012. Available at http://www.ncdc.noaa.gov/sotc/national/2012/7. [Verified 9 May 2014].
Natural Resources Conservation Service 1997. Soil survey of Harney County area, Oregon. (USDA, Natural Resources Conservation Service) Available at http://www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/oregon/OR628/0/Harney.pdf [Verified 12 February 2015]
Odion DC, Davis FW (2000) Fire, soil heating, and the formation of vegetation patterns in chaparral. Ecological Monographs 70, 149–169.
| Fire, soil heating, and the formation of vegetation patterns in chaparral.Crossref | GoogleScholarGoogle Scholar |
Parson A, Robichaud PR, Lewis SA, Napper C, Clark JT (2010) Field guide for mapping post-fire soil burn severity. USDA Forest Service, Rocky Mountain Research Station, General Technical Report RMRS-GTR-243. (Fort Collins, CO).
Rau BM, Blank RR, Chambers JC, Johnson DW (2007) Prescribed fire in a Great Basin sagebrush ecosystem: dynamics of soil extractable nitrogen and phosphorus. Journal of Arid Environments 71, 362–375.
| Prescribed fire in a Great Basin sagebrush ecosystem: dynamics of soil extractable nitrogen and phosphorus.Crossref | GoogleScholarGoogle Scholar |
Strand EK, Launchbaugh KL (2013) Livestock grazing effects on fuel loads for wildland fire in sagebrush dominated ecosystems. Great Basin Fire Science Delivery Report, April 2013. Available at http://www.gbfiresci.org/storage/docs/syntheses/2013-04_DraftGrazingFuel.pdf [Verified 12 February 2015]
United States Department of the Interior (2004) Burned area emergency stabilization and rehabilitation. Available at http://elips.doi.gov/elips/DocView.aspx?id=1860&searchid=0095bbfb-075a-480b-9b58-154ff619b991&dbid=0. [Verified 13 May 2014].
United States Department of the Interior (2012) Wildland fire management program benefit cost analysis: a review of relevant literature. Office of Policy Analysis, June 2012. Available at http://www.doi.gov/ppa/upload/Wildland_fire_literature_review_060812FINAL.pdf [Verified 12 February 2015]
United States Fish and Wildlife Service (2010) Twelve-month findings for petitions to list the greater sage-grouse (centrocercus urophasianus) as threatened or endangered. Federal Register 75, 13 910–14 014.
van Wagtendonk JW, Root RR, Key CH (2004) Comparison of AVIRIS and Landsat ETM+ detection capabilities for burn severity. Remote Sensing of Environment 92, 397–408.
| Comparison of AVIRIS and Landsat ETM+ detection capabilities for burn severity.Crossref | GoogleScholarGoogle Scholar |
Vetaas OR (1992) Micro-site effects of trees and shrubs in dry savannas. Journal of Vegetation Science 3, 337–344.
| Micro-site effects of trees and shrubs in dry savannas.Crossref | GoogleScholarGoogle Scholar | 25803805PubMed |
Western Regional Climate Center 2014. Cooperative climatological data summaries. Available at http://www.wrcc.dri.edu/climatedata/climsum/. [Verified 22 February 2013].
