Publications and Theses

Lazarus, B., C. Castanha, M. Germino, L. M. Kueppers, and A. B. Moyes. 2017. Growth strategies and threshold responses to water deficit modulate effect of warming on tree seedlings from forest to alpine. Journal of Ecology, accepted.

Conlisk, E., C. Castanha, M. Germino, T. T. Veblen, J. Smith, and L. M. Kueppers. 2017. Declines in low elevation subalpine tree populations outpace high elevation population expansion with warming. Journal of Ecology doi:10.1111/1365-2745.12750.

Kueppers, L.M., E. Conlisk, C. Castanha, A. Moyes, M. Germino, P. de Valpine, M. S. Torn, and J. B. Mitton. 2017. Warming and provenance limit tree recruitment across and beyond the elevation range of subalpine forest. Global Change Biology 23(6): 2383-2395, doi:10.1111/gcb.13561.

Winkler, D. E., K. J. Chapin, and L. M. Kueppers. 2016. Soil moisture mediates alpine life form and community productivity responses to warming. Ecology 97(6): 1553-1563, doi:10.1890/15-1197.1.

Reinhardt, K., M. J. Germino, L. M. Kueppers, J. -C. Domec, J. Mitton. 2015. Linking carbon and water relations to drought-induced mortality in Pinus flexilis seedlings. Tree Physiology 35: 771-782 doi: 10.1093/treephys/tpv045.

Moyes, A. B., M. J. Germino, and L. M. Kueppers. 2015. Moisture rivals temperature in limiting photosynthesis by trees establishing beyond their cold-edge range limit under ambient and warmed conditions. New Phytologist 207: 1005-1014 DOI: 10.1111/nph.13422.

Meromy, L., N. P. Molotch, M. Williams, K. Musselman, and L. M. Kueppers. 2015. Snowpack-climate manipulation using infrared heaters in subalpine forests of the Southern Rocky Mountains, USA. Agricultural and Forest Meteorology 203: 142–157, DOI:10.1016/j.agrformet.2014.12.015.

Suding, K., E. Farrar, A. King, L. M. Kueppers, and M. Spasojevic. 2015. Vegetation change at high elevation: Scale-dependence and interactive effects on Niwot Ridge. Plant Ecology & Diversity 8: 713-725, DOI:10.1080/17550874.2015.1010189.

D. Winkler. 2013. A multi-level approach to assessing alpine productivity responses to climate change, M.S. Thesis, Environmental Systems, University of California, Merced.

A.B. Moyes, C. Castanha, M.J. Germino and L.M. Kueppers. 2013. Warming and the dependence of limber pine (Pinus flexilis) establishment on summer soil moisture within and above its current elevation range. Oecologia, 171:271-282, DOI: 10.1007/s00442-012-2410-0.

L. Meromy. 2012. Subalpine snowpack-climate manipulation and modeling experiment at Niwot Ridge, CO and Valles Caldera National Preserve, NM, M.A. Thesis, Geography, University of Colorado, Boulder.

C. Castanha, M.S. Torn, M.J. Germino, B. Weibel, and L.M. Kueppers. 2013. Conifer seedling recruitment across a forest-to-alpine tundra gradient and effects of provenance. Plant Ecology and Diversity. 6(3-4): 307-318. doi:10.1080/17550874.2012.716087.

J. Harte, and L. M. Kueppers. 2012. Insight from integration. Nature, 485(7399): 449.

J. Mitton and S. Ferrenberg. 2012. Mountain pine beetle develops an unprecedented summer generation in response to climate warming. The American Naturalist, 179(5): E163-E171. DOI: 10.1086/665007.

K. Reinhardt, C. Castanha, M.J. Germino, and L.M. Kueppers. 2011. Ecophysiological variation in two provenances of Pinus flexilis seedlings across an elevation gradient from forest to alpine. Tree Physiology, 31(6): 615-625.

J. Petrzelka. 2011. The Effects of a Climate Manipulation Experiment on Snow Properties, Snow Surface Energy Balance, and Soil Temperature and Moisture Along an Elevation Gradient on Niwot Ridge, Colorado, M.A. Thesis, Geography, University of Colorado, Boulder.

J. Wolf. 2011. Response of Pinus flexilis James seedlings to simulated climate change through gas exchange rates, phenology and morphology, M.S. Thesis, Environmental Systems, University of California, Merced.

Presentations

Kueppers, L. M., C. Castanha, A. B. Moyes, E. Conlisk, M. Germino, M. S. Torn, J. Harte, and J. Mitton. 2014. Recruitment of subalpine tree populations sensitive to warming within and above their current altitudinal range. American Geophysical Union Fall Meeting. San Francisco, CA.

Germino, M., B. Lazarus, C. Castanha, A. B. Moyes, and L. M. Kueppers. 2014. Physiological limitation at alpine treeline: relationships of threshold responses of conifers to their establishment patterns. American Geophysical Union Fall Meeting. San Francisco, CA.

A. B. Moyes, C. Castanha, L. M. Kueppers. 2014. Microclimate factors affecting seedling emergence and survival of three conifer species within and above their current elevation ranges: results of a multi-year climate manipulation study in the Colorado Rocky Mountains. Ecological Society of America Annual Meeting, Sacramento, CA.

C. Castanha, M. J. Germino, B. Lazarus, L. M. Kueppers. 2014. Effects of experimental climate warming on seedling growth for three subalpine conifers along a forest to alpine tundra gradient. Ecological Society of America Annual Meeting, Sacramento, CA.

B. Lazarus, M. J. Germino, L. M. Kueppers, C. Castanha, A. B. Moyes. 2014. Threshold responses to cold and drought in tree seedlings vary among species at and above alpine treeline, but can they help explain establishment patterns? Ecological Society of America Annual Meeting, Sacramento, CA.

K. Reinhardt, M. J. Germino, L. M. Kueppers, C. Castanha, J. Mitton, J.-C. Domec. 2014. Whole-plant evidence for mechanisms of drought-induced mortality of Pinus flexilis seedlings at their lower-elevation limit. Ecological Society of America Annual Meeting, Sacramento, CA.

Christianson, D.S., C.G. Kaufman, L.M. Kueppers, J. Harte. 2013. Towards a More Biologically-meaningful Climate Characterization: Variability in Space and Time at Multiple Scales. American Geophysical Union Fall Meeting. San Francisco, CA.

N. Molotch, L. Meromy, M. Williams, and L. Kueppers. 2013. Estimating Future Snowpack Conditions Using Thermal Infrared Heaters and a Physically Based Snowmelt Model: Results from Niwot Ridge, Colorado, USA. EGU General Assembly 2013, Vienna.

K. Reinhardt, M.J. Germino, L.M. Kueppers, J. Mitton, C. Castanha. 2012. Why Seedlings Die: Linking Carbon and Water Limitations to Mechanisms of Mortality During Establishment in Conifer Seedlings. American Geophysical Union Fall Meeting. San Francisco, CA.

A.B. Moyes, M.J. Germino, and L.M. Kueppers. 2012. Physiological Stresses of Limber Pine Seedlings at and above Treeline Immediately Following Natural and Experimentally Advanced Snowmelt. American Geophysical Union Fall Meeting. San Francisco, CA. (poster)

A.B. Moyes, M.J. Germino, and L.M. Kueppers. 2012. Physiological Stresses of Limber Pine Seedlings at and above Treeline Immediately Following Natural and Experimentally Advanced Snowmelt. MtnClim 2012, Estes Park, CO. (poster)

L.M. Kueppers, C. Castanha, A.B. Moyes, M.J. Germino, and M. Torn. 2012. Alpine Treeline Warming Experiment: Effects of Microclimate on Subalpine Seedling Establishment within and Beyond Two Species’ Current Elevation Ranges. MtnClim 2012, Estes Park, CO.

D. Winkler and L.M. Kueppers. 2012. Plant cover responses to simulated climate change in alpine plant species. Ecological Society of America Annual Meeting, Portland, OR. (poster)

L.M. Kueppers, A. B. Moyes, S. M. Ferrenberg, D. S. Christianson, C. Castanha, and M. J. Germino. 2011. Manipulation of subalpine and alpine microclimate in the Alpine Treeline Warming Experiment. American Geophysical Union Fall Meeting. San Francisco, CA.

K. Reinhardt, C. Castanha, M. J. Germino, and L. M. Kueppers. 2011. Leapfrogging of tree species provenances? Interaction of microclimate and genetics on upward shifts in tree species’ range limits. American Geophysical Union Fall Meeting. San Francisco, CA.

C. Castanha, A. B. Moyes, M. S. Torn, M. J. Germino, and L. M. Kueppers. 2011. Responses of subalpine conifer seedling germination and survival to soil microclimate in the Alpine Treeline Warming Experiment. American Geophysical Union Fall Meeting. San Francisco, CA. (poster)

Meromy, L., J. L. Petrzelka, N. P. Molotch, M. W. Williams and L. M. Kueppers. 2011. Snowpack-climate manipulations using thermal infrared heaters along an elevational gradient. American Geophysical Union Fall Meeting. San Francisco, CA. (poster)

Kueppers, L. M., C. Castanha, A. B. Moyes, S. Ferrenberg, M. S. Torn, M. J. Germino. 2011. Alpine Treeline Warming Experiment: An Experimental Test of Climatic Constraints to Subalpine Tree Species’ Recruitment Ranges. Interface 1st INTERFACE meeting: How Do We Improve Earth System Models? Integrating Earth System Models, Ecosystem Models, Experiments and Long-Term Data, Captiva Island, Florida (poster)

L.M. Kueppers. 2010. Sensitivity of subalpine tree seedlings and alpine plants to natural and manipulated climate variation: Initial results from an Alpine Treeline Warming Experiment (Invited). Abstract GC53A-04, 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec

C. Castanha, M.J. Germino, M.S. Torn, S. Ferrenberg, J. Harte, and L.M. Kueppers. 2010. Subalpine Conifer Seedling Demographics: Species Responses to Climate Manipulations Across an Elevational Gradient at Niwot Ridge, Colorado. Abstract GC51D-0778, 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec

A.B. Moyes, C. Castanha, S. Ferrenberg, M.J. Germino, L.M. Kueppers. 2010. Sensitivity of limber pine (Pinus flexilis) seedling physiology to elevation, warming, and water availability across a timberline ecotone. Abstract GC51D-0779, 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec

K. Reinhardt, C. Castanha, M.J. Germino, and L.M. Kueppers. 2010. Provenance-level variation in mobile carbon pools corresponds to variation in ecophysiology, growth, and survival in Pinus flexilis seedlings from forest to alpine. 95th Annual Meeting of the Ecological Society of America, Pittsburgh, PA.

L.M. Kueppers. 2010. Alpine Treeline Warming Experiment: Testing alpine and subalpine species and population responses to climate change. 95th Annual Meeting of the Ecological Society of America, Pittsburgh, PA.

L.M. Kueppers, A.M. Faist, S.M. Ferrenberg, and C. Castanha. 2009. Population and species differences in treeline tree species germination in response to climate change. Eos Trans. AGU, 90(52), Fall Meet. Suppl., Poster Abstract B23A-0360.

C. Castanha, B. Weibel, M.J. Germino, M.S. Torn, and L.M. Kueppers. 2009. Subalpine Conifer Seedling Demographics Across an Elevational Gradient at Niwot ridge, Colorado: Comparison of Site, Species, and Provenance. Eos Trans. AGU, 90(52), Fall Meet. Suppl., Poster Abstract B23A-0361.

R. Butz, K.S. Reinhardt, M.J. Germino, and L.M. Kueppers. 2009. Responses Of Alpine Vegetation To Global Warming: Insights From Comparing Alpine-Restricted And Broad-Ranging Herbs Along Snowmelt Gradients. Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract B41E-06.