Long-term aspen cover change in the western US

Dominik Kulakowski, Margot Wilkinson Kaye, Daniel M. Kashian

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Quaking aspen (Populus tremuloides Michx.) is one of the most important tree species in the western United States due to its role in biodiversity, tourism, and other ecological and aesthetic values. This paper provides an overview of the drivers of long-term aspen cover change in the western US and how these drivers operate on diverse spatial and temporal scales. There has been substantial concern that aspen has been declining in the western US, but trends of aspen persistence vary both geographically and temporally. One important goal for future research is to better understand long-term and broad-scale changes in aspen cover across its range. Inferences about aspen dynamics are contingent on the spatial and temporal scales of inquiry, thus differences in scope and design among studies partly explain variation among conclusions. For example, major aspen decline has been noted when the spatial scale of inquiry is relatively small and the temporal scale of inquiry is relatively short. Thus, it is important to consider the scale of research when addressing aspen dynamics.Successional replacement of aspen by conifer species is most pronounced in systems shaped by long fire intervals and can thus be seen as part of a normal, long-term fluctuation in forest composition. Aspen decline was initially reported primarily at the margins of aspen's distribution, but may be becoming more ubiquitous due to the direct effects of climate (e.g. drought). In contrast, the indirect effects of recent climate (e.g. forest fires, bark beetle outbreaks, and compounded disturbances) appear to favor aspen and may facilitate expansion of this forest type. Thus, future aspen trends are likely to depend on the net result of the direct and indirect effects of altered climate.

Original languageEnglish (US)
Pages (from-to)52-59
Number of pages8
JournalForest Ecology and Management
Volume299
DOIs
StatePublished - Jul 1 2013

Fingerprint

Populus tremuloides
climate
Western United States
forest fires
aesthetics
bark beetles
tourism
forest fire
esthetics
forest types
bark
conifers
coniferous tree
beetle
persistence
replacement
experimental design
drought
biodiversity
disturbance

All Science Journal Classification (ASJC) codes

  • Forestry
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

Cite this

Kulakowski, Dominik ; Kaye, Margot Wilkinson ; Kashian, Daniel M. / Long-term aspen cover change in the western US. In: Forest Ecology and Management. 2013 ; Vol. 299. pp. 52-59.
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Long-term aspen cover change in the western US. / Kulakowski, Dominik; Kaye, Margot Wilkinson; Kashian, Daniel M.

In: Forest Ecology and Management, Vol. 299, 01.07.2013, p. 52-59.

Research output: Contribution to journalArticle

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