Navigation Links
Southwest regional warming likely cause of pinyon pine cone decline, says CU study
Date:2/12/2013

low temperatures in late summer decreased in the study areas, likely inhibiting cone initiation and development.

The study is one of the first to examine the impact of climate change on tree species like pinyon pines that, instead of reproducing annually, shed vast quantities of cones every few years during synchronous, episodic occurrences known as "masting" events. Redmond said such masting in the pinyon pine appears to occur every three to seven years, resulting in massive "bumper crops" of cones covering the ground.

In the new Ecosphere study, the researchers compared two 10-year sequences of time. In addition to showing that total pinyon pine cone production during the 2003-2012 decade had declined from the 1969-1978 decade in the study areas, the team found the production of cones during masting events also declined during that period.

Some scientists believe masting events evolved to produce a big surplus of nut-carrying cones -- far too many for wildlife species to consume in a season -- making it more likely the nuts eventually will sprout into pinyon pine seedlings, she said. Others have suggested masting events occur during favorable climate conditions and/or to increase pollination efficiency. "Right now we really don't know what drives them," Redmond said.

"Across a range of forested ecosystems we are observing widespread mortality events due to stressors such as changing climate, drought, insects and fire," said CU's Barger. "This study provides evidence that increasing air temperatures may be influencing the ability of a common and iconic western U.S. tree, pinyon pine, to reproduce. We would predict that declines in pinyon pine cone production may impact the long-term viability of these tree populations."

Wildlife biologists say pinyon-juniper woodlands are popular with scores of bird and mammal species ranging from black-chinned hummingbirds to black bears. A 2007 study by researchers at the Univ
'/>"/>

Contact: Miranda Richmond
Mirandaredmond@gmail.com
415-300-6901
University of Colorado at Boulder
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Dying trees in Southwest set stage for erosion, water loss in Colorado River
2. Mesquite trees displacing Southwestern grasslands
3. Small Animal Regional Anesthesia and Analgesia
4. Ken Bierly of the Oregon Watershed Enhancement Board to receive ESA Regional Policy Award
5. FirstMark Announces New Hire Jay Houtman as Southeast Regional Sales Manager
6. Lungs of the planet reveal their true sensitivity to global warming
7. Global warming less extreme than feared?
8. In the Eastern US, spring flowers keep pace with warming climate
9. Global warming may have severe consequences for rare Haleakalā silverswords
10. Global warming may have severe consequences for rare Haleakalā silverswords
11. Global warming beneficial to ratsnakes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Southwest regional warming likely cause of pinyon pine cone decline, says CU study
(Date:2/9/2015)... Texas , Feb. 9, 2015  Lintec of ... fabrication methods for carbon nanotube (CNT) macrostructures, including sheets, ... at Dallas (UTD). Leveraging the vast industrial ... Tokyo, Japan , Lintec of America is ... Richardson, TX , focusing on scaling up ...
(Date:2/5/2015)... Feb. 5, 2015  Marken is starting its 35 ... has launched a new marketing campaign to solidify its ... The new campaign focuses on First as ... shipments. The first headline in the series, ... priorities with its client,s priorities. Marken recognizes the need ...
(Date:2/5/2015)... Conn. , Jan. 26, 2015 NXT-ID, Inc. ... the "Company"), a biometric authentication company focused on the ... new corporate website ( http://www.nxt-id.com/ ) as part of ... smart wallet. The Company launched its new consumer website ... Gino Pereira , CEO of NXT-ID said, "Our new ...
Breaking Biology News(10 mins):Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4Marken Launches New Patient-Centric Campaign 2NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 2NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 3
... antibiotics that followed it, streptococcus bacteria have remained a ... the superb evolutionary skills of this pathogen to rapidly ... this week in Science , scientists from Rockefeller ... sequencing to identify the precise steps in the molecular ...
... is available in German . , Plants are ... against these herbivores they developed complex defense mechanisms over the ... of toxic chemical substances. For decades it has been controversially ... the plants. Now, using a new method the ecologists and ...
... The European Commission has given the green light to ... Nutrition Research for Africa in the Years to come,. The ... and five European institutions coordinated by the Institute of Tropical ... million Euros will be invested to rethink the research agenda ...
Cached Biology News:New research traces evolutionary path of multidrug-resistant strep bacteria 2New research traces evolutionary path of multidrug-resistant strep bacteria 3Initiative to tackle malnutrition in Africa 2
(Date:2/27/2015)... 27, 2015  Pharmacyclics, Inc. (NASDAQ: ... for its newly developed Bruton,s tyrosine kinase (BTK) ... completed. The results of these preclinical evaluations have ... Administration. The feedback received from the Agency is ... study. Additional preclinical work is required to begin ...
(Date:2/27/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/p2ddnr/global_market ) has announced ... report to their offering. , Global ... data on Trypsin globally and regionally ( Europe ... , Latin America etc.). It ... This report focuses on three primary areas; manufacture methods ...
(Date:2/27/2015)... 27, 2015 The fully automated ... UC) can sequentially analyze up to 48 samples ... high-sensitivity detection of targets by mass spectrometry. ... fulfill the measurement requirements of a wide range ... drug delivery and search for disease biomarkers, additives ...
(Date:2/27/2015)... DIEGO , Feb. 27, 2015  Pfenex Inc. ... the development of biosimilar therapeutics, today announced that it ... Francisco Marriott Marquis on March 2 nd at ... participate on a panel discussing the current state of ... of Biosimilars . For more information ...
Breaking Biology Technology:Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 2Pharmacyclics Provides Clinical Update on BTK Inhibitor for Autoimmune Diseases 3Global Market Report of Trypsin 2014-2018 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 2Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System 3
... MYL ) today announced that its subsidiary ... USP, 4.8355 mg/325 mg, based on an agreement with ... version of Endo Pharmaceuticals, Percodan® Tablets, a treatment for ... Aspirin Tablets had U.S. sales of approximately $6.5 million ...
... NEW YORK, May 5, 2011 Reportlinker.com announces ... in its catalogue: Tumor Markers ... Forecasts to 2017 http://www.reportlinker.com/p0490349/Tumor-Markers---Global-Pipeline-Analysis-Competitive-Landscape-and-Market-Forecasts-to-2017.html ... Analysis, Competitive Landscape and Market Forecasts to 2017 ...
... Inc. (OTCBB: GOVX), a biotechnology company that creates, ... its 2010 Annual Report and President,s Letter to ... information on the state of the Company,s finances ... GeoVax,s President Robert T. McNally, Ph.D., provides a ...
Cached Biology Technology:Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 2Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 3Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 4Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 5Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 6Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 7Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 8Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 9Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 10Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 11Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 12Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 13Reportlinker Adds Tumor Markers - Global Pipeline Analysis, Competitive Landscape and Market Forecasts to 2017 14GeoVax Labs Announces Availability of 2010 Annual Report and President's Letter to Stockholders 2
Bovine Coronary Artery Endothelial Cells (BCAEC) (>500,000 cells)...
Bovine Renal Artery Endothelial Cells (BRAEC) (>500,000 cells)...
Bovine Aortic Smooth Muscle Cells (BAOSMC) (>500,000 cells)...
Black Polypropylene 384 Round Well Plate 70/Box...
Biology Products: