Navigation Links
Study shows more shrubbery in a warming world
Date:12/8/2011

Scientists have used satellite data from NASA-built Landsat missions to confirm that more than 20 years of warming temperatures in northern Quebec, Canada, have resulted in an increase in the amount and extent of shrubs and grasses.

"For the first time, we've been able to map this change in detail, and it's because of the spatial resolution and length-of-record that you can get with Landsat," says Jeff Masek, the program's project scientist. He's based at NASA's Goddard Space Flight Center in Greenbelt, Md.

Masek and his co-authors will present their study at the American Geophysical Meeting in San Francisco on Friday, Dec. 9.

The study, focusing on Quebec, is one of the first to present a detailed view of how warmer temperatures are influencing plant distribution and density in northern areas of North America.

"Unlike the decline of sea ice, which is a dramatic effect that we're seeing as a result of global warming, the changes in vegetation have been subtle," Masek says.

Computer models predict the northward expansion of vegetation due to warmer temperatures. "They predict a dramatic change over the next 100 years, and people have been wondering why we weren't seeing these changes already, Masek says.

The difference between the computer predictions and real-life vegetation may have to do with all the other factors that come into play with plants, like the availability of water and sunlight; the type of terrain; competition from other plants for soil, resources and space; and plant predators like caribou.

"The warm temperatures are only part of the equation," says Doug Morton, the Principal Investigator of the study and a researcher at NASA Goddard.

Scientists track vegetation with satellites by measuring the 'greenness' of a study area. Morton says previous studies used yearly compilations, making it difficult to determine if the increase in 'greenness' was due to expansion of vegeta
'/>"/>

Contact: Aries Keck
Aries.C.Keck@NASA.gov
301-814-8858
NASA/Goddard Space Flight Center
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Brigham and Womens Hospital awarded $9.6 million to study whole genome sequencing
2. New Montana State University, Pennsylvania study reveals North Americas biggest dinosaur
3. Solar power much cheaper to produce than most analysts realize, study finds
4. UGA study documents lung function declines in firefighters working at prescribed burns
5. New study puts eco-labels to the test
6. Study of Yellowstone wolves improves ability to predict their responses to environmental changes
7. Early Earth may have been prone to deep freezes, says CU-Boulder study
8. Singapore and China scientists perform first Asian genome-wide association study on spine disease
9. Study finds climate changes faster than species can adapt
10. Global warming changes balance between parasite and host in fish -- new study
11. BGI reports study results on frequent mutation of genes encoding UMPP components in kidney cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study shows more shrubbery in a warming world
(Date:4/23/2014)... in French and Spanish . ... 2014Today, the CEC released its Conservation Assessment for the ... Conservation, which identifies 29 priority conservation areas in a ... different protected areas in the states of Texas, Coahuila, ... and semi-arid habitats inhabited by rare and endangered plants ...
(Date:4/23/2014)... a unique rhythmic sound, recorded for decades in the ... minke whale ( Balaenoptera bonaerensis ). First described and ... it sounded like a duck, the bio-duck sound has ... but its source has remained a mystery, until now. ... deployed acoustic tags on two Antarctic minke whales in ...
(Date:4/23/2014)... TX (4/23/14) -- Researchers have found evidence of ... factors that increase aggressive behavior in children, especially ... not all children exposed to prenatal smoking will ... will not," said Brian Boutwell, Assistant Professor at ... and senior author on the study. "One ...
Breaking Biology News(10 mins):Conservation priorities released for several protected areas along US-Mexico border 2Conservation priorities released for several protected areas along US-Mexico border 3Scientists identify source of mysterious sound in the Southern Ocean 2Scientists identify source of mysterious sound in the Southern Ocean 3Genetics risk, prenatal smoking may predict behavioral problems 2
... formed and how species remain separate are crucial questions in ... are often infertile or die when still in the womb. ... result of a cross between a sheep and a goat, ... example, because the sounds they make are a mixture of ...
... other planets and in extreme environments on Earth will ... under a five-year grant from NASA,s Astrobiology Institute for ... H. House, associate professor of geosciences, will lead an ... life, look for biological signatures in relevant ecosystems in ...
... release is available in Spanish . ... at the Institute for Research in Biomedicine (IRB Barcelona) ... Qumica" (ICIQ, Tarragona), have discovered a substance with the ... presents certain mutations that promote the appearance of cancer. ...
Cached Biology News:Turtle doves commit adultery 2Turtle doves commit adultery 3Penn State receives new NASA astrobiology grant 2Penn State receives new NASA astrobiology grant 3Design of a compound that stabilizes the main natural suppressor of tumors 2
(Date:1/15/2014)... Ill. , Jan. 15, 2014  Bill Jacobs Automotive, a ... , is teaming up with the Heartland Blood Center and ... blood drive. The drive takes place Saturday, Jan. 18 at ... - 2 p.m. (Photo: http://photos.prnewswire.com/prnh/20140115/MN46637 )  ...
(Date:1/15/2014)... 2014 Cynvenio, a cancer diagnostics company ... genomic analysis of tumor cells in the bloodstream, today ... cancer decision support application powered by CollabRx, Inc. ... genomic test, Therapy Finder will provide breast cancer patients ...
(Date:1/15/2014)... , January 15, 2014 A study ... races on the Formula 1 track could help to tackle ... Applied Technologies (MAT), Stowhealth (a GP surgery based in Stowmarket) ... healthcare provider Simplyhealth. Telemetry technology, which is inspired ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 DTS Language ... its Online Web Portal for Life Science organizations who need ... specify the subject matter of their documents in advance with ... help reduce time-to-delivery of translations, often a critical factor in ...
Breaking Biology Technology:Join the Bill Jacobs Auto blood drive and receive a free oil change 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4DTS Improves Efficiency for Life Science Document Translations 2
... Achieved an Objective Tumor Response by End of Four ... (Nasdaq: PPHM ) today reported that its ... in the first stage of its ongoing Phase II ... (NSCLC). The open-label, Simon two-stage study is designed ...
... Wis., Feb. 4 Mach One Corporation (Pink Sheets: ... develops biotechnology based solutions that produce positive, long term ... that it has signed a definitive agreement to acquire ... company that supplies ingredients to the food, feed and ...
... Kit provides a great introduction to the benefits of Shape Memory Alloys. ... labs, and provides both a comprehensive manual, and easy to follow demonstrations ... ... (PRWEB) February 4, 2009 -- Imagine a future where the only tool ...
Cached Biology Technology:Peregrine Pharmaceuticals' Bavituximab Achieves Primary Endpoint in First Stage of Phase II Lung Cancer Study 2Peregrine Pharmaceuticals' Bavituximab Achieves Primary Endpoint in First Stage of Phase II Lung Cancer Study 3Peregrine Pharmaceuticals' Bavituximab Achieves Primary Endpoint in First Stage of Phase II Lung Cancer Study 4Mach One Corporation Signs Definitive Agreement to Acquire Ceres Organic Harvest, Inc. 2Re-Shaping the Future with Shape Memory Alloys - SMA Starter Kit 2Re-Shaping the Future with Shape Memory Alloys - SMA Starter Kit 3
...
... Application: Pyronin Y is most widely ... to selectively and differentially stain nucleic ... a dichromatic dye solution, Pyronin Y ... stains DNA green. Chem ...
... designed for the fast and simple integration ... any position (for the generation of transgenic ... designed to allow neomycin / kanamycin selection ... a prokaryotic promoter (gb2) for expression of ...
... to offer true walk-away automation of magnetic cell ... by either positive or negative selection, RoboSep can ... one time. RoboSep is easily controlled via a ... makes it simple and fast to set up ...
Biology Products: