Navigation Links
Underlying cause of massive pinyon pine die-off revealed

data collected by AVHRR (Advanced Very High Resolution Radiometer) sensors on National Oceanic and Atmospheric Administration satellites.

The region's 60,000 square miles (about 155,000 square km) of pinyon-juniper woodlands became a lot less green starting in 2002, the team found. Moreover, the NDVI measurements for the site at LANL showed that the plot's greenness dropped at the same time and in a similar way.

During a previous multi-year drought in the 1950s, not as many trees died. To see how the two droughts differed, the researchers compared the four driest consecutive years of the earlier drought, 1953-1956, with those of the recent drought, 2000-2003.

"By every measure we looked at, the recent drought was hotter," Breshears said, adding that, if anything, the 1950s drought was drier.

The high heat combined with the extreme dryness put the trees under so much water stress that the attacks from bark beetles finished them off. Under such conditions, the trees cannot make enough pine sap to defend themselves against the insects.

"These trees are slow-growing trees, so we aren't going to have woodlands of this type back in this area for decades," Breshears said. He added that the lack of pinyon nuts will have negative effects on wildlife and on people who harvest the nuts for food and for sale.

Rich said, "The fate of the pinyon-juniper forest depends on what happens next, especially in terms of weather. If it's wetter, the trees may come back. If not we'll probably see shifts to species from drier ecosystems."

Having such a wealth of data and a range of expertise was crucial for figuring out what happened, said Cobb, leader of the Drought Impacts on Regional Ecosystems Network (DIREnet). "The NSF DIREnet project allowed us to bring all these researchers together."

Breshears said the team's next step is developing ways to predict how bad a drought must be to cause such large-scale die-offs.


'"/>

Source:University of Arizona


Page: 1 2 3 4

Related biology news :

1. Dysentery uses sword and shield to cause infection
2. Scientists detect probable genetic cause of some Parkinsons disease cases
3. BRCA1 causes ovarian cancer through indirect, biochemical route
4. Scientists decipher genome of fungus that can cause life-threatening infections
5. Researchers discover molecule that causes secondary stroke
6. Molecule that usually protects infection-fighting cells may cause plaque deposits inside arteries
7. NASA study finds snow melt causes large ocean plant blooms
8. Emergence of cancer as major cause of childhood death in developing countries is not being adequately addressed
9. UNC launches study of liver injury caused by drugs
10. First technology to remove prions that cause vCJD from blood launched
11. Norovirus found to cause travelers diarrhea
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Underlying cause massive pinyon pine die off revealed

(Date:11/15/2014)... , Nov. 13, 2014  While we may still ... Doctor McCoy used in "Star Trek" to gain instant access ... designed to work with smartphones and tablets for monitoring and ... the healthcare world. This may seem a tad Orwellian to ... to adopt some of these technological opportunities into their healthcare ...
(Date:11/11/2014)... Inc., a Chicago -based digital forensics ... of Yaniv Schiff from Senior Computer Forensics ... role as Director, he will lead company efforts to ... provide leadership within the company,s digital forensics practice area.  ... Schiff joined Forensicon in 2006 and has ...
(Date:11/7/2014)... led by Dr. Debra Auguste, associate professor, biomedical ... The City College of New York, have identified ... for one of the most aggressive forms of ... have a high mortality rate owing to aggressive ... therapeutic options. However, Professor Auguste,s team, discovered the ...
Breaking Biology News(10 mins):Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4Yaniv Schiff Promoted to Director of Digital Forensics at Forensicon, Inc. 2
... is one of the important transducers of noxious stimuli ... of neurogenic inflammation and hyperalgesia. However, there is no ... A1 contributes to neuropeptide release from primary afferent neurons. ... Hyogo College of Medicine in Japan demonstrated for the ...
... has found that both real and sham acupuncture treatments may ... breast cancer. Published early online in CANCER , a ... help clinicians improve care for cancer patients. The results also ... or may, like real acupuncture, have beneficial effects. Breast ...
... JOLLA, CADecember 22, 2013Scientists at The Scripps Research Institute ... payoffit enables the rapid selection of chemical compounds that ... how the compounds work. To illustrate the power ... to identify a compound that shows promise for treating ...
Cached Biology News:Breast cancer patients experience fewer side effects from anticancer drug when receiving acupuncture 2Innovative screening strategy swiftly uncovers new drug candidates, new biology 2Innovative screening strategy swiftly uncovers new drug candidates, new biology 3Innovative screening strategy swiftly uncovers new drug candidates, new biology 4
(Date:11/26/2014)... 2014 Global biostimulants market is ... at an estimated CAGR of 12.5%. In order ... products with least ecological impacts, farmers are looking ... boost crop yield more effectively & efficiently. Biostimulants ... improve the return on investments. , Leading companies ...
(Date:11/26/2014)... SoundConnect , an award winning ... announce that Darren Suders has joined the team as ... drive the partner program through innovative offerings, ... , Darren brings more than 10-years of channel telecommunication ... channel operations, from policy development, to partner education and ...
(Date:11/26/2014)... Dallas, Texas (PRWEB) November 26, 2014 ... Acid Industry is an in-depth research report on ... analysis, the report introduces Palmitic Acid, basic information, ... overview, policy analysis, and news analysis, etc. ... report analyzes Palmitic Acid market in ...
(Date:11/26/2014)... Bio-Techne Corporation (NASDAQ: TECH ) ... to serve in a newly created position of ... Gavin will be responsible for managing the operations of ... business acquired in July 2014 and the recently acquired ... -based ProteinSimple develops and commercializes proprietary systems and ...
Breaking Biology Technology:2019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 22019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 32019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 4SoundConnect Appoints Director of Channel Development & Sales 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 2Palmitic Acid Industry Global 2014 Analysis & 2020 Forecasts on Market data, Statics, Development Now at ReportsnReports.com 3Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 2Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 3
... Funds will ... ... (PHRI) has received $2.8 million in research funding from the National Cancer Institute (NCI) to continue ... for two more years. , , , , ,Since 2002, PHRI has participated in the ...
... CHENGDU, China, Aug. 31 /PRNewswire-Asia-FirstCall/ -- Tianyin,Pharmaceutical Co. ... and,supplier of modernized traditional Chinese medicine ("TCM") and generic,pharmaceuticals in ... &,Renshaw Annual Global Investment Conference, to be held September 9-11, ... , Mr. Stewart Lor, Director, is ...
... FREDERICK, Md., Aug. 28 SABiosciences announces its inclusion on ... Best Places to Work Industry Survey. Best Places to Work is ... dedicated management, and innovative ways to motivate their workforce. SABiosciences ranked ... pharmaceutical companies. , , "We are ...
Cached Biology Technology:Pacific Health Research Institute Awarded $2.8 Million in Research Funding 2Pacific Health Research Institute Awarded $2.8 Million in Research Funding 3Tianyin Pharmaceutical, Co. to Present at the Rodman & Renshaw Annual Global Investment Conference on September 11 at 10:50 am ET 2Tianyin Pharmaceutical, Co. to Present at the Rodman & Renshaw Annual Global Investment Conference on September 11 at 10:50 am ET 3SABiosciences Ranked 17th on the Best Places to Work Industry Award for Biotech and Pharmaceutical Companies 2
Rabbit polyclonal to Raf1 ( Abpromise for all tested applications). entrezGeneID: 5894 SwissProtID: P04049...
Rabbit anti MMP-13, Hinge Region MMP-13 Hinge Region...
Rabbit polyclonal to MAP3K12 ( Abpromise for all tested applications). Antigen: Synthetic peptide conjugated to KLH from the C-terminal region of human MAP3K12 Entrez Gene ID: 7786 Swiss ...
Amino-acids and Derivatives Rabbit Anti-conjugated L-isoleucine Polyclonal Antibody...
Biology Products: