Data from: Declines in low-elevation subalpine tree populations outpace growth in high-elevation populations with warming
Conlisk, Erin, University of California, Berkeley
Castanha, Cristina, Lawrence Berkeley National Laboratory, University of California System
Germino, Matthew J., United States Geological Survey
Veblen, Thomas T., University of Colorado Boulder
Smith, Jeremy M., University of Colorado Boulder
Kueppers, Lara M., University of California, Berkeley, Lawrence Berkeley National Laboratory, University of California System
Published Jun 30, 2017 on Dryad.
Cite this dataset
Conlisk, Erin et al. (2017). Data from: Declines in low-elevation subalpine tree populations outpace growth in high-elevation populations with warming [Dataset]. Dryad. https://doi.org/10.5061/dryad.q1f65
1. Species distribution shifts in response to climate change require that recruitment increase beyond current range boundaries. For trees with long lifespans, the importance of climate-sensitive seedling establishment to the pace of range shifts has not been demonstrated quantitatively. 2. Using spatially explicit, stochastic population models combined with data from long-term forest surveys, we explored whether the climate-sensitivity of recruitment observed in climate manipulation experiments was sufficient to alter populations and elevation ranges of two widely distributed, high-elevation North American conifers. 3. Empirically observed, warming-driven declines in recruitment led to rapid modeled population declines at the low-elevation, “warm edge” of subalpine forest and slow emergence of populations beyond the high-elevation, “cool edge”. Because population declines in the forest occurred much faster than population emergence in the alpine, we observed range contraction for both species. For Engelmann spruce, this contraction was permanent over the modeled time horizon, even in the presence of increased moisture. For limber pine, lower sensitivity to warming may facilitate persistence at low elevations – especially in the presence of increased moisture – and rapid establishment above treeline, and, ultimately, expansion into the alpine. 4. Synthesis. Assuming 21st century warming and no additional moisture, population dynamics in high-elevation forests led to transient range contractions for limber pine and potentially permanent range contractions for Engelmann spruce. Thus, limitations to seedling recruitment with warming can constrain the pace of subalpine tree range shifts.
Models and results for "Declines in low-elevation subalpine tree populations outpace growth in high-elevation populations with warming"
The models and results shown in the manuscript figures 3 and 4 are archived as text files for use with RAMAS GIS (Version 5).
National Science Foundation, Award: US Department of Energy, award DE-FG02-07ER64457, and US NSF awards 082583, 0743498, and 1262687