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Biophysical Correlates with the Distribution of the Invasive Annual Red Brome (Bromus rubens) on a Mojave Desert Landscape

  • Scott R. Abella (a1), Teague M. Embrey (a1), Sarah M. Schmid (a1) and Kathryn A. Prengaman (a1)
Abstract
Abstract

Because of its ability to transform ecosystems by increasing the prevalence of fire, the invasive annual red brome is a priority exotic species for management in arid lands of the southwestern United States. By sampling red brome presence and 97 environmental (climatic, topographic, and soil) and native vegetation (e.g., perennial species richness) variables on 126 sites, we assessed biophysical correlates with red brome distribution on a 755,000-ha (1.9 million ac) Mojave Desert landscape. Brome occupied 55 of 126 (44%) 0.09-ha plots. The simplest models (i.e., those containing the fewest or most easily obtained variables) in multivariate (classification trees and nonparametric multiplicative regression) and univariate (χ2) models often portrayed red brome distribution as well, or nearly as well, as more complicated models containing more variables harder to obtain. The models varied, however, in their abilities for describing brome presence compared with absence. For example, a simple classification tree using only elevation, soil great group, parent material, and vegetation type improved estimates of brome presence for 55% of sites, absences for 87%, and overall for 73% of sites compared with a naïve model containing the observed frequency of brome in the data. Conversely, a more complicated model, including soil boron and sulfur, performed better for presences (96%) than for absences (73%; 83% overall). Results also showed variable support for two general postulates in invasive species science. Red brome distribution was not correlated with soil N, which is inconsistent with the supposition that nutrient-rich soils are more prone to invasion. Brome was correlated with native perennial species richness to support the postulate that exotic species abundance is correlated with species-rich habitats, but the correlation was weak (r = 0.38) and similar in strength to correlations with many other environmental variables. On this relatively low-elevation landscape, the areas currently most invaded by red brome include the higher elevations (> 777 m [2,549 ft]), limestone–sandstone soils, and burrobush and mixed perennial communities. Areas least inhabited by brome are the lowest elevations (< 491 m), gypsum soils, and creosotebush and saltbush communities.

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Corresponding author's E-mail: scott.abella@unlv.edu
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S. R. Abella , D. J. Craig , L. P. Chiquoine , K. A. Prengaman , S. M. Schmid , and T. M. Embrey 2011. Relationships of native desert plants with red brome (Bromus rubens): toward identifying invasion-reducing species. Invasive Plant Sci. Manag. 4:115124.

S. R. Abella , J. E. Spencer , J. Hoines , and C. Nazarchyk 2009. Assessing an exotic plant surveying program in the Mojave Desert, Clark County, Nevada, USA. Environ. Monit. Assess. 151:221230.

S. R. Abella , K. A. Prengaman , T. M. Embrey , S. M. Schmid , A. C. Newton , and D. J. Merkler 2012. A hierarchical analysis of vegetation on a Mojave Desert landscape, USA. J. Arid Environ. 78:135143.

M. Arim , S. R. Abades , P. E. Neill , M. Lima , and P. A. Marquet 2006. Spread dynamics of invasive species. Proc. Natl. Acad. Sci. U. S. A. 103:374378.

M. Bashkin , T. J. Stohlgren , Y. Otsuki , M. Lee , P. Evangelista , and J. Belnap 2003. Soil characteristics and plant exotic species invasions in the Grand Staircase-Escalante National Monument, Utah, USA. Appl. Soil Ecol. 22:6777.

J. C. Beatley 1966. Ecological status of introduced brome grasses (Bromus spp.) in desert vegetation of southern Nevada. Ecology 47:548554.

J. C. Beatley 1974. Phenological events and their environmental triggers in Mojave Desert ecosystems. Ecology 55:856863.

B. A. Bradley and J. F. Mustard 2006. Characterizing the landscape dynamics of an invasive plant and risk of invasion using remote sensing. Ecol. Appl. 16:11321147.

M. L. Brooks 1999. Habitat invasibility and dominance by alien annual plants in the western Mojave Desert. Biol. Invasions 1:325337.

M. L. Brooks 2003. Effects of increased soil nitrogen on the dominance of alien annual plants in the Mojave Desert. J. Appl. Ecol. 40:344353.

M. L. Brooks and J. R. Matchett 2006. Spatial and temporal patterns of wildfires in the Mojave Desert, 1980–2004. J. Arid Environ. 67:148164.

M. L. Brooks and K. H. Berry 2006. Dominance and environmental correlates of alien annual plants in the Mojave Desert, USA. J. Arid Environ. 67:100124.

J. C. Chambers , B. A. Roundy , R. R. Blank , S. E. Meyer , and A. Whitaker 2007. What makes Great Basin sagebrush ecosystems invasible by Bromus tectorum? Ecol. Monogr. 77:117145.

D. J. Craig , J. E. Craig , S. R. Abella , and C. H. Vanier 2010. Factors affecting exotic annual plant cover and richness along roadsides in the eastern Mojave Desert, USA. J. Arid Environ. 74:702707.

J. A. Crooks 2002. Characterizing ecosystem-level consequences of biological invasions: the role of ecosystem engineers. Oikos 97:153166.

C. Daly , M. Halbleib , J. I. Smith , W. P. Gibson , M. K. Doggett , G. H. Taylor , J. Curtis , and P. P. Pasteris 2008. Physiographically sensitive mapping of climatological temperature and precipitation across the conterminous United States. Int. J. Climatol. 28:20312064.

M. A. Davis , J. P. Grime , and K. Thompson 2000. Fluctuating resources in plant communities: a general theory of invasibility. J. Ecol. 88:528534.

C. J. Ellis , B. J. Coppins , T. P. Dawson , and M. R. D. Seaward 2007. Response of British lichens to climate change scenarios: trends and uncertainties in the projected impact for contrasting biogeographic groups. Biol. Conserv. 140:217235.

M. L. Floyd , D. Hanna , W. H. Romme , and T. E. Crews 2006. Predicting and mitigating weed invasions to restore natural post-fire succession in Mesa Verde National Park, Colorado, USA. Int. J. Wildland Fire 15:247259.

B. Gilbert and M. J. Lechowicz 2005. Invasibility and abiotic gradients: the positive correlation between native and exotic plant diversity. Ecology 86:18481855.

R. E. Kass and A. E. Raftery 1995. Bayes factors. J. Am. Statis. Assoc. 90:773795.

A. K. Knapp , C. Beier , D. D. Briske , et al. (2008). Consequences of more extreme precipitation regimes for terrestrial ecosystems. Bioscience 58:811821.

J. M. Levine and C. M. D'Antonio 1999. Elton revisited: a review of evidence linking diversity and invasibility. Oikos 87:1526.

B. McCune 2006. Non-parametric habitat models with automatic interactions. J. Veg. Sci. 17:819830.

B. McCune 2007. Improved estimates of incident radiation and heat load using non-parametric regression against topographic variables. J. Veg. Sci. 18:751754.

B. McCune , S. D. Berryman , J. H. Cissel , and A. I. Gitelman 2003. Use of a smoother to forecast occurrence of epiphytic lichens under alternative forest management plans. Ecol. Appl. 13:11101123.

S. E. Meyer 1986. The ecology of gypsophile endemism in the eastern Mojave Desert. Ecology 67:13031313.

M. E. Miller , J. Belnap , S. W. Beatty , and R. L. Reynolds 2006. Performance of Bromus tectorum L. in relation to soil properties, water additions, and chemical amendments in calcareous soils of southeastern Utah, USA. Plant Soil 288:118.

L. E. Rao , E. B. Allen , and T. Meixner 2010. Risk-based determination of critical nitrogen deposition loads for fire spread in southern California deserts. Ecol. Appl. 20:13201335.

L. F. Salo 2005. Red brome (Bromus rubens subsp. madritensis) in North America: possible modes for early introductions, subsequent spread. Biol. Invasions 7:165180.

K. E. Saxton and W. J. Rawls 2006. Soil water characteristic estimates by texture and organic matter for hydrologic solutions. Soil Sci. Soc. Am. J. 70:15691578.

R. Seager , M. F. Ting , I. M. Held , et al. 2007. Model projections of an imminent transition to a more arid climate in southwestern North America. Science 316:11811184.

J. Williamson and S. Harrison 2002. Biotic and abiotic limits to the spread of exotic revegetation species. Ecol. Appl. 12:4051.

K. K. Wu and S. K. Jain 1979. Population regulation in Bromus rubens and B. mollis: life cycle components and competition. Oecologia 39:337357.

A. C. Yost 2008. Probabilistic modeling and mapping of plant indicator species in a Northeast Oregon industrial forest, USA. Ecol. Indic. 8:4656.

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Invasive Plant Science and Management
  • ISSN: 1939-7291
  • EISSN: 1939-747X
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