Navigation Links
New study reveals unexpected relationship between climate warming and advancing treelines
Date:8/12/2009

A new study reveals that treelines are not responding to climate warming as expected. The research, the first global quantitative assessment of the relationship between climate warming and treeline advance, is published in Ecology Letters and tests the premise that treelines are globally advancing in response to climate warming since 1900.

Treelines are the elevation or latitudinal limits where trees are capable of growth or survival and are considered to be early indicators of climate warming because they are constrained primarily by cold temperatures. Summer temperature is widely considered to be the primary control of treeline formation and maintenance, whereas winter temperatures have previously been considered less critical because of the insulative effects of snow. This study reveals how winter warming has overturned this prevailing view.

"Average temperatures have risen over the last century, with a more pronounced and rapid change at high altitudes and latitudes", said Ms. Melanie Harsch from the Bio-Protection Research Centre in New Zealand. "Within these zones, treelines are thought to be more temperature sensitive and so the rise in summer temperatures should result in an advance of treeline position."

Harsch and her co-authors conducted a multivariate meta-analysis, using a global dataset of 166 treeline sites with temperature data taken from the closest climate station to each site. The team used this data to analyse treeline advance throughout the 20th century and consider the contributing factors to that advance.

The team found that only 87 of the 166 sites (52%) had advanced while simultaneously the mean annual local temperatures had increased at 111 of the 166 sites at an average rate of 0.013˚C a year (or 1˚C in 77 years). Of the remaining sites, 77 (47%) remained stable and only two (1%) had treelines that receded. Both of the receding sites showed evidence of disturbance, indicating th
'/>"/>

Contact: Ben Norman
Benorman@wiley.com
44-012-437-70375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/12/2014)... and POINT ROBERTS, Washington , ... Investorideas.com ( http://www.investorideas.com ) a global news source covering leading ... and experts on the September 9 th launch of ... of Goode Intelligence, Janice Kephart , founder of the ... Pereira of NXT-ID, Inc, (NASDAQ: NXTD ) ...
(Date:9/11/2014)... Ill. Chicago residents today might have had a ... of Illinois had been approved. It was a straight ... just south of the Rock and Mississippi River confluence. ... had the proposed northern border not been changed, the ... and footprint with the northern 51 miles of the ...
(Date:9/11/2014)... Two Northeastern University researchers and their international colleagues ... the role of neutral evolution in the biogeographic ... published Thursday in the journal Science . ... in a neutral agent-based model"was co-authored by Ferdi ... professor of civil and environmental engineering; his doctoral ...
Breaking Biology News(10 mins):Biometric Experts Comment on Launch of Apple Pay Smart Wallet Payment Service 2Biometric Experts Comment on Launch of Apple Pay Smart Wallet Payment Service 3Biometric Experts Comment on Launch of Apple Pay Smart Wallet Payment Service 4Biometric Experts Comment on Launch of Apple Pay Smart Wallet Payment Service 5Original northern border of Illinois was south of Chicago and Lake Michigan 2Original northern border of Illinois was south of Chicago and Lake Michigan 3Microbes evolve faster than ocean can disperse them 2
... I. Gordon, MD, at Washington University School of Medicine in ... find new ways to diagnose, treat and prevent a critical ... is funded by an $8.3 million grant from the Bill ... link between obesity and the trillions of friendly microbes that ...
... nowadays. It is quite unexceptional for a sports jacket, ... the case of working clothes, the functionality is mostly ... and so on, with wearer comfort (mostly) not being ... their name suggests, hold off bullets but they are ...
... the Salk Institute for Biological Studies and Iowa State ... a role in the production of seed oils, substances ... biofuels. Scoring a rare scientific hat trick, the ... plants ( Arabidopsis thaliana ) that regulate the metabolism ...
Cached Biology News:Washington University receives $8 million to lead international childhood malnutrition effort 2Washington University receives $8 million to lead international childhood malnutrition effort 3Washington University receives $8 million to lead international childhood malnutrition effort 4Real smart: Protective clothing with built-in A/C 2Discovery of plant proteins may boost agricultural yields and biofuel production 2Discovery of plant proteins may boost agricultural yields and biofuel production 3
(Date:9/13/2014)... Phoenixville, PA (PRWEB) September 13, 2014 ... medical device innovations, is proud to announce the successful ... Health Network bariatric surgeons Leonardo Claros, MD, FACS, FAMBS, ... ViSiGi 3Dâ„¢ Sleeve Gastrectomy Calibration System. , This ... a postgraduate course of more than four hundred surgeons ...
(Date:9/12/2014)... , Sept. 12, 2014 Research ... "Global Dry Film Photoresist Industry Report 2014" ... Dry Film Photoresist Industry Report 2014 is a professional ... global dry film photoresist industry . The ... definitions, classifications, applications and industry chain structure. The dry ...
(Date:9/11/2014)... RURO, Inc., a leading laboratory ... and sample management solutions provider, announces the release ... on the most recent version of its Limfinity® ... seen mass adoption, especially from multi-license environment customers. ... brought an entirely new User Interface and version ...
(Date:9/11/2014)... sheet of carbon, can be randomly decorated with oxygen ... could have a significant impact on the chemical, pharmaceutical ... an ultra-strong, non-corrosive coating for a wide range of ... used to paint various surfaces ranging from glass to ... treatment, the resulting coatings behave like graphite in terms ...
Breaking Biology Technology:Boehringer Laboratories, Inc. Announces Live Surgery Using Innovative System to Calibrate Sleeve Gastrectomy 2Global Dry Film Photoresist Industry Report 2014 2Limfinity® Version 5.1 Available 2Graphene paints a corrosion-free future 2
... one of the best possible technologies for providing ... to power our civilization. However, for this dream to ... inexpensive elements using low-cost, less energy-intensive processing chemistry, and ... electricity. A team of researchers with the U.S. Department ...
... SynCardia Systems, Inc. ( www.syncardia.com ), manufacturer of the SynCardia ... company pages on Facebook , Twitter and ... about the world,s only FDA, Health Canada and CE (Europe) ... implants of the Total Artificial Heart, accounting for more than ...
... 31, 2011 BioMed Realty Trust, Inc. (the "Company") ... of the 4.50% Exchangeable Senior Notes due 2026 (CUSIP ... Realty, L.P. (the "Operating Partnership"), which are fully and ... surrender their Notes for purchase by the Operating Partnership ...
Cached Biology Technology:Down to the wire 2Down to the wire 3Down to the wire 4SynCardia Goes Social on Facebook, Twitter and LinkedIn 2SynCardia Goes Social on Facebook, Twitter and LinkedIn 3SynCardia Goes Social on Facebook, Twitter and LinkedIn 4BioMed Realty Announces Repurchase at Option of Holders and Redemption of 4.50% Exchangeable Senior Notes Due 2026 2BioMed Realty Announces Repurchase at Option of Holders and Redemption of 4.50% Exchangeable Senior Notes Due 2026 3BioMed Realty Announces Repurchase at Option of Holders and Redemption of 4.50% Exchangeable Senior Notes Due 2026 4BioMed Realty Announces Repurchase at Option of Holders and Redemption of 4.50% Exchangeable Senior Notes Due 2026 5