Navigation Links
New study illustrates shifting biomes in Alaska
Date:2/21/2011

A new study released today in the EarlyView of Ecology Letters addresses forest productivity trends in Alaska, highlighting a shift in biomes caused by a warming climate. The findings, conducted by scientists at the Woods Hole Research Center and three other institutions based in Alaska and France, linked satellite observations with an extensive and unique tree-ring data set. Patterns observed support current hypotheses regarding increased growth of evergreen forest at the margins of present tundra and declining productivity at the margins of temperate forest to the south. This study provides a regional picture of forest productivity which did not previously exist.

According to lead author Pieter Beck, a post-doctoral fellow at WHRC, "The results provide evidence for the initiation of a biome shift in response to climate change, and indicate that some ecosystem models may be missing fundamental changes taking place in the circumpolar region."

He adds that "while the findings contrast with some recent model predictions of increased high latitude vegetation productivity, they are consistent with longer-term projections of global vegetation models."

Scott Goetz, a senior scientist at WHRC, proposed the study and co-authored the manuscript. He says, "Most people don't think of high latitudes forests as being drought stressed - and they are not in the traditional sense of having soils dry up and blow away - but their growth is negatively impacted by hot dry air masses and those have increased in recent years. This paper shows those drought impacts are captured in both the satellite and the tree ring record. Of course the tree rings go back in time much further than the satellite observations, which only extend about 30 years, but the changes that we observe from satellites are clearly supported not only by the tree rings but also by carbon isotope analysis of the wood."

Beck adds that climate driven changes in the disturbance regime, which can rapidly alter forest dynamics and the ability of boreal forests to migrate into current tundra areas, will most likely shape the biome shift in the future.


'/>"/>

Contact: Elizabeth Braun
ebraun@whrc.org
508-444-1509
Woods Hole Research Center
Source:Eurekalert

Related biology news :

1. NIFA announces grants to study the effects of climate change on agricultural and forest production
2. Study suggests statins may prevent diabetic-related blindness
3. First-of-its-kind study shows benefits of electrical stimulation therapy for people paralyzed by spinal cord injury
4. Designing new molecular tools to study the life and death of a cancer cell
5. Scripps Research study sheds light on RNA on/off switches
6. Study finds massive flux of gas, in addition to liquid oil, at BP well blowout in Gulf
7. Pulmonary fibrosis inhibited by pentraxin-2/SAP in research study
8. NSF funds study of landscape restoration effects on Pennsylvania stream
9. VTT to study one of worlds oldest beers
10. Brandeis study shows economic impact of dengue virus in Americas
11. Field study of smoggy inversions to end
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/27/2016)... WEST CHESTER, Ohio , Jan. 27, 2016 /PRNewswire/ ... services supplier based in West Chester, Ohio ... and their award winning service staff, based in ... Track,s technical capacity and ability to provide modifications, installations ... John Dovalina , CEO of PLUS, commented, "PLUS ...
(Date:1/25/2016)... -- Glencoe Software, the world-leading supplier of image data management ... the data management solution OMERO Plus for the newly ... Photo - http://photos.prnewswire.com/prnh/20160125/325328LOGO ... Phenotypic analysis measures the characteristics and behavior of cells, ... such as health and disease, the presence or absence ...
(Date:1/22/2016)... , Jan. 22, 2016 ... the addition of the "Global Biometrics ... to their offering. --> ... the "Global Biometrics Market in Retail ... --> Research and Markets ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... ... February 04, 2016 , ... ... compliance training, today announced an interactive FDA compliance training course, ... (Regulatory Affairs Professional Society) accredited interactive course on Morf Playbook—now conveniently available on ...
(Date:2/4/2016)... , Feb. 4, 2016  Sangamo BioSciences, Inc. (NASDAQ: ... announced today that Edward Lanphier , Sangamo,s president ... the progress of Sangamo,s ZFP Therapeutic ® development ... at 2:40 pm ET on Thursday, February 11, 2016, ... Healthcare Conference. The conference is being held in ...
(Date:2/4/2016)... ... February 04, 2016 , ... ... takes place February 5-6 at the University’s student center, Kehr Union, located ... as workshops and competitions for ample networking, learning and collaborating opportunities. , ...
(Date:2/4/2016)... 4, 2016  CytoSorbents Corporation (NASDAQ: CTSO ... flagship CytoSorb® blood filter to treat deadly inflammation ... world, announced that CEO Dr. Phillip Chan ... Capital Group,s 2016 Disruptive Growth & Healthcare Conference, ... Conference Presentation Details: Where: Convene ...
Breaking Biology Technology: