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Are Fire and Grazing a Solution to the Invasive Non-Native Lehmann Lovegrass?

Are Fire and Grazing a Solution to the Invasive Non-Native Lehmann Lovegrass?. Tahlia Bragg, Chris McDonald, Guy McPherson UA/NASA Space Grant Consortium The University of Arizona. Lehmann Lovegrass. Eragrostis lehmanniana Non-native grass Burns faster and hotter

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Are Fire and Grazing a Solution to the Invasive Non-Native Lehmann Lovegrass?

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  1. Are Fire and Grazing a Solution to the Invasive Non-Native Lehmann Lovegrass? Tahlia Bragg, Chris McDonald, Guy McPherson UA/NASA Space Grant Consortium The University of Arizona

  2. Lehmann Lovegrass • Eragrostis lehmanniana • Non-native grass • Burns faster and hotter • California, Utah, New Mexico, Oklahoma, and Texas

  3. Santa Rita Experimental Range

  4. Fire and Grazing • Santa Rita Experimental Range • 24 plots • 2004-2007 • 2004: Initial biomass was recorded • 2005: Grass was treated with Grazing, Burning, Burning and Grazing, or Untreated plots • 2006: Treated again with Grazing, Burning, Burning and Grazing, or Untreated plots • 2007: Data Collected

  5. Methods 2005 2006

  6. Grass by Treatment Type

  7. Dicots

  8. Dicots

  9. Initial Weight Final Weight

  10. Discussion • Grazing is not a solution because cows do not incur mortality of Lehmann lovegrass • Roots and crowns of plants were not burned • Chemical treatment could be a possibility

  11. Acknowledgments • UA/NASA Spacegrant Consortium • Guy McPherson • Chris McDonald

  12. Questions?

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