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:4/11/2017)... Research and Markets has announced the addition of the "Global ... ... at a CAGR of 30.37% during the period 2017-2021. ... based on an in-depth market analysis with inputs from industry experts. ... the coming years. The report also includes a discussion of the ...
(Date:4/6/2017)... Forecasts by Product Type (EAC), ... End-Use (Transportation & Logistics, Government & Public Sector, Utilities ... Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), ... you looking for a definitive report on the $27.9bn ... ...
(Date:4/5/2017)... , April 4, 2017 KEY FINDINGS ... to expand at a CAGR of 25.76% during the ... is the primary factor for the growth of the ... https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global stem ... technology, application, and geography. The stem cell market of ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... LINDA, CA (PRWEB) , ... October 11, 2017 ... ... to upregulate any gene in its endogenous context, enabling overexpression experiments and avoiding ... (CRISPRa) system with small RNA guides is transformative for performing systematic gain-of-function studies. ...
(Date:10/11/2017)... HILLS, Calif. , Oct. 11, 2017  SkylineDx today ... (ICR) and University of Leeds ... risk-stratify patients with multiple myeloma (MM), in a multi-centric Phase ... University of Leeds is the sponsor ... and ICR will perform the testing services to include high-risk ...
(Date:10/10/2017)... Angeles, CA (PRWEB) , ... ... ... Inc., a development-stage cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) therapeutics, ... uses of targeted HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed in ...
(Date:10/10/2017)... ... October 10, 2017 , ... USDM Life Sciences , ... life sciences and healthcare industries, announces a presentation by Subbu Viswanathan and Jennifer ... “Automating GxP Validation for Agile Cloud Platforms,” will present a revolutionary approach to ...
Breaking Biology Technology:
Cached News: