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Low elevations hold climate surprises for mountain plants

Date:
October 30, 2010
Source:
University of California - Davis
Summary:
Contrary to expectations, climate change has had a significant effect on mountain plants at low elevations, says a new study.
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Ellen Damschen of the University of Wisconsin-Madison (left) makes notes as a research team surveys mountain plants.
Credit: Susan Harrison/UC Davis photo

Contrary to expectations, climate change has had a significant effect on mountain plants at low elevations, says a new study led by a UC Davis researcher.

The information could guide future conservation efforts at local scales by helping decision makers anticipate biological responses to climate changes, said lead author Susan Harrison, a UC Davis professor of environmental science and policy.

Harrison and scientists from the University of Wisconsin-Madison and the U.S. Geological Survey examined vegetation changes during the past 60 years in the Siskiyou Mountains of Oregon.

They found signs of increased drought stress in the low-elevation forests (1,650 to 4,000 feet), but not at high elevations (4,100 to 6,900 feet). Climate change appeared to affect both logged and unlogged forests at low elevations similarly.

"We were surprised to find such clear signals of climate change in these plant communities, given all the other ecological changes that may be going on in the region, such as logging and fire suppression," Harrison said.

The study was published online Oct. 25 in the Proceedings of the National Academy of Sciences.

It was funded by the National Science Foundation and by the U.S. Geological Survey Global Climate Change Program.


Story Source:

The above post is reprinted from materials provided by University of California - Davis. Note: Materials may be edited for content and length.


Journal Reference:

  1. S. Harrison, E. I. Damschen, J. B. Grace. Ecological contingency in the effects of climatic warming on forest herb communities. Proceedings of the National Academy of Sciences, 2010; DOI: 10.1073/pnas.1006823107

Cite This Page:

University of California - Davis. "Low elevations hold climate surprises for mountain plants." ScienceDaily. ScienceDaily, 30 October 2010. <www.sciencedaily.com/releases/2010/10/101028113821.htm>.
University of California - Davis. (2010, October 30). Low elevations hold climate surprises for mountain plants. ScienceDaily. Retrieved August 3, 2015 from www.sciencedaily.com/releases/2010/10/101028113821.htm
University of California - Davis. "Low elevations hold climate surprises for mountain plants." ScienceDaily. www.sciencedaily.com/releases/2010/10/101028113821.htm (accessed August 3, 2015).

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