Navigation Links
Complex dynamics underlie bark beetle eruptions
Date:6/1/2008

Forest management that favors single tree species and climate change are just two of the critical factors making forests throughout western North America more susceptible to infestation by bark beetles, according to an article published in the June 2008 BioScience. Bark beetle epidemics have become more extensive and frequent in recent years as winter temperatures have risen, and an eruption of mountain pine beetles is currently devastating lodgepole pines throughout the mountainous West.

The article, by Kenneth F. Raffa of the University of Wisconsin at Madison and colleagues at Colorado State University, the University of Idaho, and the US and Canadian Forest Services, stresses the complexity of the biological processes that determine when a bark beetle eruption will occur. When beetles bore through a trees bark, they release pheromones that summon other beetles to join the offensive. Trees counter attacks by exuding resin that can kill the invaders, but if too many beetles attack a weak tree, its defenses fail. The beetles then reproduce within its living tissues, with the help of colonizing fungi, and the tree is doomed. The condition and spacing of nearby trees and the local climate affect whether the beetle progeny released after a successful attack sustain an epidemic--which can kill a high proportion of the trees in an area and so alter the landscape for decades. Because many of the processes in an epidemic operate at different scales and turn on critical thresholds, prediction is a challenge. It is nonetheless clear that human activities can exacerbate bark beetle eruptions, which cause major economic losses and reduce forests ability to absorb carbon from the atmosphere.


'/>"/>

Contact: Jennifer Williams
jwilliams@aibs.org
202-628-1500
American Institute of Biological Sciences
Source:Eurekalert

Page: 1

Related biology news :

1. Organic corn: Increasing rotation complexity increases yields
2. Simple model cell is key to understanding cell complexity
3. Finding God with biocomplexity
4. First rule of evolution suggests that life is destined to become more complex
5. Epigenetic regulation by the MMB/dREAM complex
6. Researchers visualize complex pigment mixtures in living cells
7. Research leading to tools for managing bovine respiratory disease complex
8. Evolving complexity out of junk DNA
9. New process makes nanofibers in complex shapes and unlimited lengths
10. Complex carbon picture clearer
11. Rebuilding the evolutionary history of HIV-1 unravels a complex loop
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... AGU,s blogs: Earthquake rupture through a U.S. suburb ... of California Davis in the hours and days after ... scientists understand why the earthquake caused so much damage ... Trembling Earth blog, hosted by the American Geophysical Union. ... Mars Rovers: The Next Places to Direct Our Curiosity ...
(Date:9/2/2014)... On September 3, The Field Museum will present the ... recognition of his commitment to biodiversity conservation awareness. The ... honor an outstanding individual, team or organization whose efforts ... rich natural heritage and whose actions can serve as ... founder of Mongabay.com, an environmental science and conservation news ...
(Date:9/2/2014)... Bavaria, the Tithonian Konservat-Lagersttte of lithographic limestone is ... of emblematic fossils from that area (for example, ... found fossil insects in the French equivalent of ... species representing the oldest known water treader. , ... Bavarian outcrops, fewer fossils have been obtained from ...
Breaking Biology News(10 mins):This week From AGU: California earthquake, future Mars rovers, models underestimate ozone 2Exceptionally well preserved insect fossils from the Rhône Valley 2
... The work of molecular biologist Joseph M. Miano, ... Miano helps head the Aab Cardiovascular Research Institute and ... and Pediatrics program at the University of Rochester Medical ... was highly unlikely, shared enthusiasm, intense curiosity and a ...
... of researchers from the University of Valladolid (Spain) has analysed ... free iron than pale and non-alcoholic beers. Iron is essential ... compounds that give these beverages stability and flavour. According ... (UVa) on 40 types of beers from all 5 continents, ...
... Scientists at the National Physical Laboratory (NPL) have mimicked ... genetic material. The research hopes to apply the approach ... defective genes such as those that cause cancer. ... challenges around targeting damaged cells and creating corrective genes. ...
Cached Biology News:In quest for new therapies, clinician-scientist team unlocks hidden information in human genome 2In quest for new therapies, clinician-scientist team unlocks hidden information in human genome 3In quest for new therapies, clinician-scientist team unlocks hidden information in human genome 4Dark beer has more iron than pale beer 2
(Date:9/2/2014)... NC (PRWEB) September 02, 2014 ... of its 11th clinical research site: PMG Research of ... ownership and operation of the clinical research department at ... expanding PMG’s presence in eastern North Carolina. This new ... For the patients in Rocky Mount and the surrounding ...
(Date:9/2/2014)... , September 2, 2014 Culot ... research and lab management services  BioData, producer ... is pleased to announce the appointment of Louis ... recently served as VP Marketing and Business Development at ... research and clinical applications. Previously, Culot worked ...
(Date:9/1/2014)... Reportlinker.com announces that a new market ... India Solid Waste Management Vehicles Market Forecast ... In India ... responsible for complete handling and regulation of solid ... 135,000 MT solid waste is generated daily in ...
(Date:9/1/2014)... 01, 2014 The Collaborative R&D ... report provides comprehensive understanding and unprecedented access to ... by the worlds leading life science companies. , ... of how and why companies enter collaborative R&D ... partner’s negotiated deals terms provides critical insight into ...
Breaking Biology Technology:PMG Research Announces the Formation of its Eleventh Site 2PMG Research Announces the Formation of its Eleventh Site 3Louis Culot Appointed as BioData's CEO 2India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 2India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 3India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 4India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 5India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 6India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 7India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 8Collaborative R&D Terms & Agreements in Pharma, Biotech and Diagnostics Industry Analysis, Size, Share, Growth, Trends And Forecast Research Report by Researchmoz.us 2Collaborative R&D Terms & Agreements in Pharma, Biotech and Diagnostics Industry Analysis, Size, Share, Growth, Trends And Forecast Research Report by Researchmoz.us 3Collaborative R&D Terms & Agreements in Pharma, Biotech and Diagnostics Industry Analysis, Size, Share, Growth, Trends And Forecast Research Report by Researchmoz.us 4
... In the quest to exploit unique properties at ... have developed a novel technique for creating uniform ... and students in the Department of Physics and ... methods from holographic lithography to demonstrate a new ...
... Pharmaceuticals, Inc. (NASDAQ: IDIX ), announced today that ... Stanley Global Healthcare Conference on September 13 at 8:35 a.m. ... the Bank of America Merrill Lynch Global Healthcare Conference on ... of America Merrill Lynch Financial Centre, London.   ...
... Cellectis (Alternext: ALCLS), the French genome engineering specialist, will present at ... September 20, 2011, and at the MidCap Event in Paris on ... will present the activities and the development strategy of the Cellectis ... Hyatt New York hotel on Tuesday, September 20, 2011 at 11:30 ...
Cached Biology Technology:Stevens researchers pioneer novel technique to make plasmonic nanogap arrays 2Stevens researchers pioneer novel technique to make plasmonic nanogap arrays 3