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Landscape Ecology

, Volume 30, Issue 6, pp 1055–1073 | Cite as

Fire modulates climate change response of simulated aspen distribution across topoclimatic gradients in a semi-arid montane landscape

  • Jian Yang
  • Peter J. Weisberg
  • Douglas J. Shinneman
  • Thomas E. Dilts
  • Susan L. Earnst
  • Robert M. Scheller
Research Article

Abstract

Content

Changing aspen distribution in response to climate change and fire is a major focus of biodiversity conservation, yet little is known about the potential response of aspen to these two driving forces along topoclimatic gradients.

Objective

This study is set to evaluate how aspen distribution might shift in response to different climate-fire scenarios in a semi-arid montane landscape, and quantify the influence of fire regime along topoclimatic gradients.

Methods

We used a novel integration of a forest landscape succession and disturbance model (LANDIS-II) with a fine-scale climatic water deficit approach to simulate dynamics of aspen and associated conifer and shrub species over the next 150 years under various climate-fire scenarios.

Results

Simulations suggest that many aspen stands could persist without fire for centuries under current climate conditions. However, a simulated 2–5 °C increase in temperature caused a substantial reduction of aspen coverage at lower elevations and a modest increase at upper elevations, leading to an overall reduction of aspen range at the landscape level. Increasing fire activity may favor aspen increase at its upper elevation limits adjacent to coniferous forest, but may also favor reduction of aspen at lower elevation limits adjacent to xeric shrubland.

Conclusions

Our study highlights the importance of incorporating fine-scale terrain effects on climatic water deficit and ecohydrology when modeling species distribution response to climate change. This modeling study suggests that climate mitigation and adaptation strategies that use fire would benefit from consideration of spatial context at landscape scales.

Keywords

Quaking aspen Fire disturbance Gradient analysis Great Basin LANDIS-II Climatic water deficit 

Notes

Acknowledgments

Funding was provided by the U.S. Geological Survey National Climate Change and Wildlife Science Center (NCCWSC). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S.G.S. We thank Steve Garman and two anonymous reviewers for helpful reviews that helped us improve the manuscript.

Supplementary material

10980_2015_160_MOESM1_ESM.docx (1.1 mb)
Supplementary material 1 (DOCX 1109 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Jian Yang
    • 1
    • 4
    • 5
  • Peter J. Weisberg
    • 1
  • Douglas J. Shinneman
    • 2
  • Thomas E. Dilts
    • 1
  • Susan L. Earnst
    • 2
  • Robert M. Scheller
    • 3
  1. 1.Department of Natural Resources and Environmental ScienceUniversity of Nevada-RenoRenoUSA
  2. 2.U.S. Geological SurveyForest and Rangeland Ecosystem Science CenterBoiseUSA
  3. 3.Environmental Science and Management DepartmentPortland State UniversityPortlandUSA
  4. 4.State Key Laboratory of Forest and Soil Ecology, Institute of Applied EcologyChinese Academy of SciencesShenyangChina
  5. 5.Department of Forestry, TP Cooper BuildingUniversity of KentuckyLexingtonUSA

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