Navigation Links
Risk of beetle outbreaks rise, along with temperature, in the warming West
Date:9/8/2010

The potential for outbreaks of spruce and mountain pine beetles in western North America's forests is likely to increase significantly in the coming decades, according to a study conducted by USDA Forest Service researchers and their colleagues. Their findings, published in the September issue of the journal BioScience, represent the first comprehensive synthesis of the effects of climate change on bark beetles.

"Native bark beetles are responsible for the death of billions of coniferous trees across millions of acres of forests ranging from Mexico to Alaska," said Barbara Bentz, research entomologist with the Forest Service's Rocky Mountain Research Station and lead author of the study. "Our study begins to explain how their populations respond to the climatic changes being projected by the Intergovernmental Panel on Climate Change."

In the study, Bentz and her colleagues synthesized what is currently known about the effects of climate change on several species of bark beetles that cause extensive, landscape-scale tree mortality in North America. They then used a combination of models to analyze the likely response of and generate case studies for two specific speciesthe spruce beetle and mountain pine beetle.

"Our models suggest that climatic changes on the order of what is expected would increase the population success of both spruce beetle and mountain pine beetle throughout much of their range, although there is considerable variability," said Chris Fettig, a research entomologist with the Pacific Southwest Research Station and a coauthor of the study. "Bark beetles are influenced directly by shifts in temperature, which affect developmental timing and temperature-induced mortality, and indirectly, through climatic effects on the species associated with beetles and their host trees."

One effect the study detected is the likelihood, in a warming climate, of a substantial increase in areas of spruce forest dominated by spruce beetles that reproduce annually rather than every two years, as is common today. Annual reproduction of the beetle can contribute significantly to population growth and the occurrence of outbreaks.

In addition, the study's models also helped to address concerns about the potential for mountain pine beetles to expand their range across forests of central Canada into the central and Eastern United States. The researchers found that, without adaptation to warming temperatures, the likelihood of this occurring is low to moderate throughout this century.

"Understanding how bark beetle populations will be affected under different climate scenarios in different regions is key to developing appropriate management strategies in North American forests," Bentz said.


'/>"/>

Contact: Yasmeen Sands
ysands@fs.fed.us
360-753-7716
USDA Forest Service, Pacific Northwest Research Station
Source:Eurekalert

Related biology news :

1. Unusual rhino beetle behavior discovered
2. Beetles stand out using Avatar tech
3. UC Riverside lecture: Climate change, bark beetles, environmental markets and sustainability
4. Geraniums could help control devastating Japanese beetle
5. Scientists isolate new antifreeze molecule in Alaska beetle
6. Inconspicuous leaf beetles reveal environments role in formation of new species
7. What scientists know about jewel beetle shimmer
8. Beetle shell inspires brilliant white paper
9. New Southern California beetle killing oaks
10. Controlling cucumber beetles organically
11. Holy guacamole: invasive beetle threatens Floridas avocados
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/7/2017)... WARSAW, Ind. , Feb. 7, 2017 ... global leader in musculoskeletal healthcare, will present at the ... Lotte New York Palace Hotel on Wednesday, February 15, ... A live webcast of the presentation can be accessed ... for replay following the conference via Zimmer Biomet,s Investor ...
(Date:2/6/2017)... , Feb. 6, 2017 According to ... are driving border authorities to continue to embrace ... there are 2143 Automated Border Control (ABC) eGates ... deployed at more than 163 ports of entry ... to 2016 achieving a combined CAGR of 37%. ...
(Date:2/3/2017)... Feb. 3, 2017 A new independent identity ... Partners, LLP (IdSP) . Designed to fill a critical ... identity market, founding partners Mark Crego and ... years just in identity expertise that span federal governments, ... leadership. The Crego-Kephart combined expertise has a common theme ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... ... February 24, 2017 , ... FireflySci, Inc is an explosive small business that ... the goal of bringing their powerful cuvette and spectrophotometer calibration to the ... FireflySci is going on as they add yet another mark on the global map. ...
(Date:2/24/2017)... Corporation (NASDAQ: VWR), the leading global independent provider of product ... its financial results for the fourth quarter and full year ... 4Q16 record quarterly net sales of $1.13 billion, up ... 4Q16 EMEA-APAC segment net sales increased ... net sales increased 2.5%, or down 0.9% on an organic ...
(Date:2/23/2017)... NEW YORK , Feb. 23, 2017 ... a leading digital health company, and Digital ... telemedicine and remote patient monitoring, announce they are ... DN Telehealth maximizes collaboration compatibility ... extending consultations beyond a physical clinical setting to ...
(Date:2/23/2017)... ... February 23, 2017 , ... BellBrook Labs is formalizing ... an array of biochemical analyses critical for Lead Discovery. The company’s Lead ... SAR programs, including inhibitor potency and selectivity, mechanism of action, and inhibitor residence ...
Breaking Biology Technology: