Navigation Links
Cloud forest trees drink water through their leaves
Date:12/13/2012

Tropical montane cloud forest trees use more than their roots to take up water. They also drink water from clouds directly through their leaves, University of California, Berkeley, scientists have discovered.

While this is an essential survival strategy in foggy but otherwise dry areas, the scientists say that the clouds the trees depend on are now disappearing due to climate change.

"The study highlights the vulnerability of this rare and already endangered ecosystem to climate change," said Todd Dawson, senior author of the study and UC Berkeley professor of integrative biology. Changes in cloud cover have already been correlated to declines and disappearances of cloud forest animal populations, such as frogs and salamanders.

The new study will be published next year in the journal Ecology Letters and is available online this month.

In tropical montane cloud forests, leaves are constantly bathed in clouds, making them wet. The leaves of the most common cloud forest trees drink this cloud water when water from the soil just isn't enough, said Greg Goldsmith, lead author of the study and a graduate student in Dawson's lab.

"Many cloud forests experience an annual dry season when the primary water source isn't rain, but rather, the moisture from the clouds," he said. "This is when the trees are most likely to draw water in through their leaves."

Working in Monteverde, Costa Rica, the researchers studied patterns of leaf wetness caused by the clouds by setting up small plastic "leaves" that use changes in the voltage of an embedded electrical circuit to detect wetness. Then, they installed miniature sensors on the branches of cloud forest plants to see whether or not water was entering leaves when they were wet.

"The textbooks teach us that water enters roots, moves up the trunk and into the branches, then finally exits the leaves. That's true, but it's not the whole story," Goldsmith said. "With our sensors, we observed water entering the leaves and actually moving back down the branches toward the trunk."

The research builds on previous work by Dawson, who demonstrated a similar phenomenon in California redwoods.

However, the study found that not all trees can drink the same amount of cloud water.

"The trees that are drinking the most water through their leaves may be more vulnerable to decreases in cloud cover resulting from rising temperatures," said Goldsmith, who received funding from a National Geographic Society Young Explorers Grant to conduct the research.

"The study provides a clear demonstration of the interactions between clouds and cloud forest plants and will serve as a cornerstone for future research on the effects of climate change on tropical montane cloud forest ecosystems," Dawson added.


'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert  

Related biology news :

1. New bird species discovered in cloud forest of Peru
2. 500 international cloud researchers meet in Leipzig
3. UI researchers develop technique to help pollution forecasters see past clouds
4. Pollution teams with thunderclouds to warm atmosphere
5. New insights into cloud formation
6. Wake Forest Baptist Medical Center Launches Wake Forest Innovations
7. New study shows how climate change could affect entire forest ecosystems
8. Wake Forest Baptist Marks 20th Anniversary of Star Lighting at Annual Ceremony
9. Feature package of Congo Basin forest photos, stories & videos
10. Preserve the services of mangroves -- Earths invaluable coastal forests, experts urge
11. Louisiana Tech University professor earns national honor from Society of American Foresters
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cloud forest trees drink water through their leaves
(Date:4/28/2016)... Sweden , April 28, 2016 First ... M (139.9), up 966% compared with the first quarter of 2015 ... profit totaled SEK 589.1 M (loss: 18.8) and the operating margin ... 7.12 (loss: 0.32) Cash flow from operations was SEK ... The 2016 revenue guidance is unchanged, SEK 7,000-8,500 M. ...
(Date:4/15/2016)... -- A new partnership announced today will help life ... a fraction of the time it takes today, ... insurance policies to consumers without requiring inconvenient and ... rapid testing (A1C, Cotinine and HIV) and higi,s ... pulse, BMI, and activity data) available at local ...
(Date:3/31/2016)... , March 31, 2016   ... ("LegacyXChange" or the "Company") LegacyXChange is excited ... of its soon to be launched online site for ... https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also provide potential shareholders a ... DNA technology to an industry that is notorious for ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... ... and Mold) microbial test has received AOAC Research Institute approval 061601. , “This ... introduced last year,” stated Bob Salter, Vice President of Regulatory and Industrial Affairs. ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking ... Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. ... Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our capacity as ...
(Date:6/23/2016)... 23, 2016 On Wednesday, June 22, ... down 0.22%; the Dow Jones Industrial Average edged 0.27% lower ... 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage on the following ... Therapeutics (NASDAQ: NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ... BIND ). Learn more about these stocks by accessing ...
(Date:6/23/2016)... , June 23, 2016 ... market research report to its pharmaceuticals section with ... product details and much more. Complete ... across 151 pages, profiling 15 companies and supported ... at http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . The ...
Breaking Biology Technology: