Navigation Links
Dartmouth research offers new control strategies for bipolar bark beetles
Date:1/25/2013

Population explosions of pine beetles, which have been decimating North American forests in recent decades, may be prevented by boosting competitor and predator beetle populations, a Dartmouth study suggests.

Bark beetles are the most destructive forest pests worldwide. Management and climate change have resulted in younger, denser forests that are even more susceptible to attack. Though intensively studied for decades, until now an understanding of bark beetle population dynamicsextreme ups and downshas remained elusive.

The Dartmouth-led study, published in the January issue of the journal Population Ecology, confirmed, for the first time, that the abundance of a certain animal speciesin this case the southern pine beetlefluctuates innately between extremes, with no middle ground.

"That is different from most species, such as deer, warblers and swallowtail butterflies, whose populations tend to be regular around some average abundance based on food, weather, and other external factors," says Matt Ayres, a professor in the Department of Biological Sciences at Dartmouth and senior author on the paper. "They don't appear and disappear in cycles. Rather, they exist in two stable equilibrium statesone of high abundance and the other of scarcity." Once the population pendulum swings toward the high end, it won't quickly or easily swing back.

The new research by Dartmouth scientists and their forester colleagues could provide the means to limit this seemingly bipolar dynamic, keeping the bark beetles at the lower stable population level.

The studies identify the presence of bark beetle competitors and predators (specifically two other beetles) as the predominant limiting factor that can keep the bark beetles at a low, stable equilibrium. The authors suggest that the presence of these competitors and predators could be encouraged as a control strategy.

"The pine beetles produce pheromones, chemical si
'/>"/>

Contact: John Cramer
John.D.Cramer@dartmouth.edu
603-646-9130
Dartmouth College
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Dartmouth scientists track radioactive iodine from Japan nuclear reactor meltdown
2. Dartmouth researchers are learning how exercise affects the brain
3. Dartmouth research imparts momentum to mobile health
4. Science stars head to Dartmouth for the E.E. Just Symposium
5. Dartmouth research: The clocks are ticking and the climate is changing
6. Mercury releases contaminate ocean fish: Dartmouth-led effort publishes major findings
7. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
8. Research reveals first evidence of hunting by prehistoric Ohioans
9. Diabetes Research Institute develops oxygen-generating biomaterial
10. APS issues new policy requiring identification of sex or gender in reporting scientific research
11. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dartmouth research offers new control strategies for bipolar bark beetles
(Date:8/20/2015)... SANTA CLARA, Calif. , Aug. 20, 2015 ... based company focused on improving the user experience ... voice and vision technologies, today announced that its ... and voice biometric authentication software to be ... Alliance tested TrulySecure for compliance with the FIDO ...
(Date:8/18/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/9dmm6l/global_biometric ) has ... Authentication & Identification Market: Focus On Modality, Motility ... report to their offering. The ... expected to grow at an estimated CAGR of ... $25 billion (approximately) by 2020 as per the ...
(Date:8/12/2015)... 2015  New research unveiled at Black Hat ... to steal users, fingerprints. Information released today by ... scanners on mobile devices, making the security of ... on mobile devices, HYPR Corp. recently released a ... systems with strong cryptographic security. More information on ...
Breaking Biology News(10 mins):TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 2TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 4TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 5Global Biometric Authentication & Identification Market 2015: Focus On Modality, Motility & Application - Estimation & Forecasts to 2020 for the $25 Billion Industry 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 3
... WASHINGTON DC, APRIL 9, 2009 -- Four experts in ... unique opportunity farmers and foresters have to manage soil ... voluntary markets. Agricultural and forest soils in the U.S. ... of carbon dioxide (CO 2 ) every year, offsetting ...
... led by the U.S. Department of Energy (DOE) Joint ... Institute (MBARI) have decoded genomes of two algal strains, ... maintain its delicate balance in the oceans. These ... of MBARI and published in the April 10 edition ...
... to high temperatures and the ability to conserve water for ... hot and arid parts of the world. But is ... Reporting in the open-access, peer-reviewed journal PLoS ONE ... University of Haifa, Israel now show that this is indeed ...
Cached Biology News:Down to Earth carbon science: Briefing April 15 in DC 2Genes from tiny algae shed light on big role managing carbon in world's oceans 2Genes from tiny algae shed light on big role managing carbon in world's oceans 3Scorpion biodiversity 2
(Date:9/3/2015)... -- According to a new market research ... Flash), GC, Other Components (Autosamplers, Detectors, Fraction Collectors), by ... & Global Forecasts to 2020", published by MarketsandMarkets, The ... Billion by 2020 from USD 7.062 Billion in 2015, ... tables and 36 figures spread through 277 Pages and ...
(Date:9/3/2015)... Michigan (PRWEB) , ... September 03, 2015 , ... ... to release its non-invasive hydration monitoring wearable early 2016. , The device, ... level using proprietary optical and electrical sensing technology. These sensors track trending ...
(Date:9/2/2015)... Sept. 2, 2015 Axovant Sciences Ltd. (NYSE:  AXON), ... dementia, today announced upcoming presentations at three investor conferences: ... Baird 2015 Healthcare Conference in New York ... September 10 at 2:00 PM at the BioCentury NewsMakers Conference ... Broadway Hotel & Conference Center , Thursday, September 17 ...
(Date:9/2/2015)... (PRWEB) , ... September 02, ... ... provider of regulatory compliance, quality systems, analytical testing, education and consulting services ... with expertise in medical device products/processes development, design control, validation, quality assurance ...
Breaking Biology Technology:Chromatography Instruments Market Worth $ 9.223 Billion by 2020 2Chromatography Instruments Market Worth $ 9.223 Billion by 2020 3Chromatography Instruments Market Worth $ 9.223 Billion by 2020 4Technology Startup Halo Wearables to Unveil Non-Invasive Hydration Monitoring Device Early 2016 2Axovant Sciences To Present At Upcoming Investor Conferences 2Axovant Sciences To Present At Upcoming Investor Conferences 3NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 2NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 3NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 4NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 5NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 6NSF International Strengthens Medical Device Consulting With Acquisition of Avarent LLC 7
... BEIJING, July 22 /PRNewswire-Asia/ -- Sinovac Biotech Ltd. ... in China, today announced that it has,initiated dosing today in ... A (H1N1). Results are expected in September,2009. , ... split viron,vaccine with adjuvant, and whole viron vaccine with adjuvant, ...
... , , PHILADELPHIA and LONDON, July ... often cited compendium of pharmaceutical research and development statistics, the ... Factbook offers extended content including patent information and emerging ... "The R&D Factbook provides the data that R&D ...
... July 22 Cellectricon, a leading,provider of cell-based screening ... with University of Lodz, Poland. Under the,agreement University of ... throughput transfection enabling reagent-free delivery of any,genetic material to ... Multimedia News Release, please click: , ...
Cached Biology Technology:Sinovac Initiates Dosing in Human Clinical Trial of Panflu for Pandemic Influenza A (H1N1) 2Thomson Reuters Announces 2009 Edition of the CMR International Pharmaceutical R&D Factbook 2University of Lodz Invests in the Unique Cellaxess(R)HT System for Research on Multidrug Resistance Genes in Cancer 2
One-step, microplate or cuvet, colorimetric, linear detection range 0.7 mg/dL to 35 mg/dL. Procedure: 5 min....
assays for phosphatase, lipase, nucleoside triphosphatases (ATPase, GTPase etc). HTS and follow up studies for phosphatase inhibitors. Quantitation of phosphate content in protein, lipids, and DNA....
...
EnzChek cellulase substrate *blue fluorescent, 339/452...
Biology Products: