HOME >> BIOLOGY >> NEWS
Duke Studies Show U.S. Central Plains Vulnerable To Global Warming

f carbon dioxide in the peat deposits over the short run.

Peatlands are marked by an ever-changing mosaic of collapsed regions called scars, in which the peat has thawed and abruptly released large amounts of carbon dioxide before reforming.

In attempting to understand how this mosaic will change as global temperatures rise, Camill studied the behavior of the peatlands along a north-to-south line from colder to warmer regions. The colder regions feature more or less permanent permafrost, while the warmer ones show considerable scarring.

Camill discovered that the local dynamics of peat collapse and reformation dominate over the north-to-south temperature gradient, said Clark.

"This finding means that, even though it gets warmer as you go north to south, the overall balance of carbon uptake and release in the scars, and the scars' re-growth, is not dominated by the regional climate, but by the local processes. These processes include the growth of trees in these scars, which encourage the re-growth of permafrost." Camill's finding has implications for global warming effects, said Clark.

"These findings say that as the climate warms, you would not get a step-wise retreat of peat lands. But you would begin to speed up this local process which, rather than a net release of carbon dioxide, might cause a transient uptake as these scars reform into peat. The transient dynamics on the decades to centuries scale could be very different than the equilibrium change after a thousand years of warmer global temperatures.

Because climate change may disproportionately affect trees during their vulnerable early stages as seedlings, graduate student Janneke and Clark reported to the ESA meeting studies of how climate changes might affect seed germination. These early studies hint that under global warming some tree species may suffer reduced germination and seedling growth, a process botanists call "recruitment."


'"/>

Contact: Monte Basgall
Monte@dukenews.duke.edu
919-681-8057
Duke University Medical Center
4-Aug-1998


Page: 1 2 3 4

Related biology news :

1. Monkey business: Studies show tiny callimicos have unusual characteristics
2. Studies show success of Mectizan partnerships
3. Studies offer new insight into HIV vaccine development
4. Studies suggest brain injury results from developmental exposure to alcohol, anesthesia, and lead
5. Studies show preventive value of food supplements
6. Studies probe rapid evolution of Chinese tallow trees
7. Studies of rare blood syndrome yield novel route to cancer
8. Studies dispute ultraviolet effect on amphibian population declines
9. Studies of spiders silk reveal unusual strength
10. Studies of genes in mice and common worm may accelerate research on blood diseases, cancers
11. Studies offer data on potential impact of Reminyl on caregiver burden in Alzheimers disease

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/15/2018)... ... September 14, 2018 , ... The first ever production picosecond-domain laser with a ... and purple tattoo inks - often the colors most resistant to laser removal. , ... of the American Society for Laser Medicine and Surgery, Inc. (ASLMS) investigated the safety ...
(Date:9/12/2018)... ... September 11, 2018 , ... Tennant Coatings, ... the new ChemXP™ line of high performance secondary containment coatings, designed to protect ... provide Tennant Coatings’ elite certified installers with the needed solutions to protect facility’s ...
(Date:9/7/2018)... ... September 05, 2018 , ... Following ... manufacturing facility late last year, IPS-Integrated Project Services, LLC and G-CON Manufacturing have ... cell therapies. The iCON solution provides a pre-fabricated modular cleanroom infrastructure for the ...
Breaking Biology News(10 mins):
(Date:9/22/2018)... WESTMINSTER, Colo. (PRWEB) , ... ... ... Flagship Biosciences are excited to announce a strategic venture. The synergistic combination ... pathology platform provides complimentary and comprehensive biomarker profiling to empower clinical trials ...
(Date:9/13/2018)... , ... September 13, 2018 , ... Asymmetrex’s ... think we would have gotten in medicine, if we didn’t have the means to ... to treat patients?” His answer, “Nowhere! And that is what’s holding up progress ...
(Date:9/7/2018)... SANTA CLARA, Calif. (PRWEB) , ... September 05, 2018 , ... ... sponsored by Park Systems will be held on Sept. 19, 2018. With a panel ... trends on SPM, this exciting event will reveal industry insights from experts in the ...
(Date:9/1/2018)... ... 2018 , ... Rudina Thanasi, a scientifically validated holistic energy ... treated nutraceutical supplement used in combating inflammation and autoimmune disorders. , ... as, organ-specific inflammation. The reported data is as follows: , More than ...
Breaking Biology Technology:
Cached News: