people / Veblen, Thomas
Veblen, Thomas


Thomas T. Veblen (Tom)

Ph.D., University of California, Berkeley, 1975
Office: 303-492-8528



My main research interests are in forest ecology and vegetation dynamics in relation to natural and anthropogenic disturbances, especially as related to climate variability. I use tree rings to date past disturbance events such as fire and insect outbreaks. For more than 25 years I have been investigating how disturbances such as fire, blow down and bark beetle outbreaks interact in the forested landscapes of the Colorado Rocky Mountains. Since the mid-1970s in the southern Andes of Chile and Argentina I have been investigating the effects of disturbances such as mass movements, blow down, fires, and introduced animals on forest dynamics, and increasingly under the effects of climate warming. Both my Colorado and southern Andean work are supported mainly by the National Science Foundation.

Disciplines: Plant/vegetation ecology



  • University of Colorado at Boulder, Professor, Geography


Different vital rates of Engelmann spruce and subalpine fir explain discordance in understory/overstory dominance.

Andrus, R. , Harvey, B.J., Chai, R.K., Veblen, T.T., Canadian Journal of Forest Research, DOI: 10.1139/cjfr-2018-0182,


Moisture availability limits subalpine tree establishment.

Andrus, R.A., Harvey, B.J., Rodman, K.C., Hart, S.J., Veblen, T.T., Ecology, 1-9, DOI: 10.1002/ecy.2134,


Summer and winter drought drive the initiation and spread of spruce beetle outbreak.

Hart, S.J., Veblen, T.T., Schneider, D., Molotch, N.P., Ecology, DOI: 10.1002/ecy.1963,


Seed origin and warming constrain lodgepole pine recruitment, slowing the pace of population range shifts.

Conlisk, E., Castanha, C., Germino, M.J., Veblen, T.T., Smith, J.M., Moyes, A.B., Kueppers, L.M., Global Change Biology, DOI: 10.1111/gcb.13840,


Does tree growth sensitivity to warming trends vary according to treeline form?.

Treml, V., Veblen, T.T., Journal of Biogeography, DOI: 10.1111/jbi.12996,


Declines in low-elevation subalpine tree populations outpace growth in high-elevation populations with warming.

Conlisk, Erin, Castanha, Cristina, Germino, Matthew J., Veblen, Thomas T., Smith, Jeremy M., Kueppers, Lara M., Journal of Ecology, DOI: 10.1111/1365-2745.12750,

CU Boulder

This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-1637686. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necesarily reflect the views of the National Science Foundation.

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