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:10/17/2014)... critical and pertinent for practicing physicians and clinicians given ... The Journal, Disaster Medicine and Public Health Preparedness ... Public Health, to surround the public, medical professionals and ... , On October 17, the journal published ... was prepared by Dr. Eric Toner, internist and emergency ...
(Date:10/17/2014)... This news release is available in German . ... for only a very few drugs. When treating overdoses, doctors ... Treatment is especially difficult if there is a combination of ... is playing and accidentally swallows his grandmother,s pills? ETH professor ... Zurich wanted to find an answer to this question. "The ...
(Date:10/16/2014)... have a new synthesis of recent research findings to ... in the two states. , The Ecology and ... Washington: A Synthesis of the Relevant Biophysical Science and ... published by the U.S. Forest Service,s Pacific Northwest Research ... managers for a synthesis of the large body of ...
Breaking Biology News(10 mins):Emergency aid for overdoses 2Emergency aid for overdoses 3New report synthesizes best available science on management of moist mixed-conifer forests 2
... gene mutation that increases a person's risk for chronic ... of the disease. , The study shows that ... Furthermore, a second kind of change occurs later that ... latter alteration is a chemical change that is not ...
... Medicine research team, collaborating with scientists from Stanford University, ... may be effective in delivering a radioprotective enzyme systemically ... long-term consequences of therapeutic irradiation. These results are being ... Society of Gene Therapy, being held May 30 to ...
... abnormal cells can avoid a biochemical program of self-destruction ... is giving investigators at St. Jude Children's Research Hospital ... survive and thrive. , The finding offers an explanation ... by disabling the main suicide pathway called apoptosis can ...
Cached Biology News:Researchers discover inherited mutation for leukemia 2Researchers discover inherited mutation for leukemia 3Enzyme delivered in smaller package protects cells from radiation damage 2Cells re-energize to come back from the brink of death 2
(Date:10/19/2014)... 2014 The Asian Automatic patient billing ... analysis and forecast of revenue. The Automatic patient billing ... $463.9 million by 2018, at a developing CAGR of ... TOC of the Asian Automatic patient billing market, to ... also provides a glimpse of the segmentation of this ...
(Date:10/19/2014)... The report "Unmanned Ground Vehicle Market ... Payload, Type & by Geography - Forecasts & ... ground vehicle market into various sub segments with ... The report also identifies the factors driving this ... with the adoption trends. , The unmanned ground ...
(Date:10/18/2014)... 18, 2014 The report "1,6-Hexanediol ... and Forecasts to 2019", analyzes the global market ... to understand the industry details such as the ... various geographic regions. , Browse 81 Market Data ... and in-depth TOC on “1,6-Hexanediol Market by Application ...
(Date:10/18/2014)... The Asian Electronic Medical Record (EMR) market report ... and forecast of revenue. The electronic medical record market in ... by 2018, at a CAGR of 9.4% from 2013 to ... Medical Record (EMR) market, to get an idea of the ... segmentation of the market in the same region, and is ...
Breaking Biology Technology:The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 2The Asian Automatic patient billing market is estimated to grow to around $463.9 million by 2018 - New Report by MicroMarket Monitor 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 51,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 21,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 31,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 41,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 5The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 2The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 3The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 4The Asian Electronic Medical Record (EMR) market is estimated to grow to $2,328.0 million by 2018 - New Report by MicroMarket Monitor 5
... /PRNewswire-FirstCall/ - SemBioSys Genetics Inc. (TSX:SBS), a biotechnology ... announced it has received US$2,500,000 from MannKind Corporation ... option agreement and issuance of 2,400,000 units of ... transaction provides MannKind with the option to the ...
... Scientific (Nasdaq :STSI) announced today that its subsidiary, ... Star Tobacco, Inc. subsidiary, recently completed a study ... smokeless tobacco to relieve cigarette withdrawal symptoms when ... The study, which included 49 cigarette smokers, was ...
... 6 GeneGo, Inc., a leading provider,of software ... biology,and pathway analysis , today announced that ... for another three years. Bayer Schering Pharma,has ... GeneGo has good coverage of these diseases and ...
Cached Biology Technology:SemBioSys receives US$2.5 million from option agreement with MannKind for plant-produced insulin 2SemBioSys receives US$2.5 million from option agreement with MannKind for plant-produced insulin 3Star Scientific Announces Successful Completion of Product Satisfaction Study - Results Show Potential for Development and Manufacturing of New Pharmaceutical Product for Smoking and Smokeless Tobacco Cessation 2Star Scientific Announces Successful Completion of Product Satisfaction Study - Results Show Potential for Development and Manufacturing of New Pharmaceutical Product for Smoking and Smokeless Tobacco Cessation 3Star Scientific Announces Successful Completion of Product Satisfaction Study - Results Show Potential for Development and Manufacturing of New Pharmaceutical Product for Smoking and Smokeless Tobacco Cessation 4GeneGo Renews Its Agreement With Bayer Schering Pharma AG for Another Three Years 2
... generation of the popular precision current ... iontophoresis of neural transport tracers such ... amino acids into neural tissue, is ... also be used to make small ...
... but comes with a shutter (controlled via a ... D-2000 Deuterium Light Source produces a powerful, stable ... of the light source are available, providing a ... stable lamp provides peak-to-peak stability of less than ...
... Digital Clamp One can operate as a Voltage ... Conductance (Dynamic) Clamp in electrophysiology research applications. Performance ... conventional analog equipment. • ... recent advances in the capabilities of Digital Signal ...
... an enhanced ChemStation for the ... 2000 and Windows XP operating ... all new 7500 ICP-MS instruments ... new ChemStation using Microsofts Windows ...
Biology Products: