Navigation Links
Edge density key to controlling gypsy moth spread

Controlling population peaks on the edges of the gypsy moth range may help to slow their invasion into virgin territory, according to a team of researchers.

"Slowing the spread of the gypsy moth is a priority in forest management in the U.S.," says Ottar Bjornstad, associate professor of entomology and biology, Penn State. "Understanding the underlying patterns in the spread of invasive species is important for successful management."

The accidental release of the gypsy moth in 1869 in Massachusetts has led to an infestation covering more than 386,000 square miles of the U.S. Northeast. Native to Europe and Asia, gypsy moths are currently found from Maine to North Carolina and west into Wisconsin where they defoliate trees and occasionally, cause extensive damage to northern deciduous forests.

"We analyzed historical data on the spread of the gypsy moth in the U.S. and found that its invasion has been characterized by regular periods of rapid spread interspersed between periods of little expansion," says Bjornstad. "This is the first identification of pulsed invasions for an invading species."

Bjornstad; Derek M. Johnson, Department of Biology, University of Louisiana, and Andrew M. Liebhold and Patrick C. Tobin, U.S. Forest Service, used historical, county-level quarantine records as well as forest service data from more than 100,000 pheromone traps set along the expanding gypsy moth population front for their theoretical model. The pheromone trap data were collected from 1988 to 2004.

They used a theoretical model to show how an interaction between negative population growth at low densities ?"the Allee effect" ?and the existence of a few satellite seed colonies created by human transfer of the insects over long distances, explain the invasion pulses, the researchers explain today (Nov. 16) in Nature. The gypsy moth adult is flightless and usually only spreads a short distance beyond infestation boundaries. External c
'"/>

Source:Penn State


Page: 1 2

Related biology news :

1. Census of Marine Life explorers surprised by diversity, density of Arctic creatures
2. Scientists find that protein controls aging by controlling insulin
3. Gene controlling circadian rhythms linked to drug addiction
4. Enzyme affects hypertension by controlling salt levels in body
5. Liquid crystals show promise in controlling embryonic stem cells
6. Important gene controlling tree growth and development found
7. Key gene controlling eye lens development identified
8. Electronic chip, interacting with the brain, modifies pathways for controlling movement
9. Key gene controlling kidney development found
10. New understanding of cell movement may yield ways to brake cancers spread
11. Mosquito study shows new, faster way West Nile can spread
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Edge density key controlling gypsy moth spread

(Date:10/16/2014)... on how the bowel lining develops and, in the ... starts. , The researchers produced evidence that stem cells ... are a feature of the bowel lining, and believe ... a controversial finding as scientists are still divided on ... Dr Chin Wee Tan and Professor Tony Burgess from ...
(Date:10/16/2014)... SHELTON, Conn. , October 16, 2014 ... ("NXT-ID" or the "Company"), a biometric authentication company focused ... present its leading edge technologies including Wocket™, the Smart ... Review® (FiRe) Conferenece. FiRe is a leading global conference ... Hosted by Mark Anderson , founder ...
(Date:10/15/2014)... Gauß-Allianz has admitted Johannes Gutenberg University Mainz (JGU) ... science hub continues to maintain a significant nationwide ... , "The acceptance of Johannes Gutenberg University Mainz ... a milestone in the national and international competition ... state of Rhineland-Palatinate can be proud that Mainz ...
Breaking Biology News(10 mins):Cryptic clues drive new theory of bowel cancer development 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3
... 17, 2012  ChromaDex Corporation (OTCBB: CDXC), an innovative ... and ingredients to the dietary supplement, food & ... BluScience™ ( www.bluscience.com ), its recently ... William F. Spengler has elected to step down ...
... change we often hear about. But Mark Collard, a ... archaeology, will talk about how climate change impacts human ... American Association for the Advancement of Science (AAAS) conference ... Centre in downtown Vancouver., Collard will give a talk ...
... by researchers at SUNY Downstate Medical Center,s School of ... examines dietary and environmental sources of exposure to mercury. ... examined risk factors that may be associated with elevated ... The study, published this month in the ...
Cached Biology News:ChromaDex® Announces Management Changes 2ChromaDex® Announces Management Changes 3AAAS-SFU research: Linking human evolution and climate change 2Study finds Caribbean-American women at higher risk for elevated mercury levels 2Study finds Caribbean-American women at higher risk for elevated mercury levels 3Study finds Caribbean-American women at higher risk for elevated mercury levels 4
(Date:10/22/2014)... The Americas Inorganic Refrigerants Market report defines and ... analysis and forecast of revenue. , Browse through ... report, to get an idea of the in-depth ... the segmentation in the Americas inorganic refrigerants market, ... , http://www.micromarketmonitor.com/market/americas-inorganic-refrigerants-4191654241.html , Inorganic refrigerants ...
(Date:10/22/2014)... 22, 2014 WriteResult, LLC – ... has been working with a team of researchers from ... Farms Community Farming Collaborative to provide electronic questionnaire data ... The study, which started in May, aims to evaluate ... participants weekly exposure to and participation in urban agriculture ...
(Date:10/22/2014)... 2014 According to new market ... Type (Consulting, Integration, Deployment & Support), by Service ... (Public, Private, Others (Hybrid & Community)) - Global ... segments the Cloud Professional Services Market into various ... revenues. It also identifies the drivers and restraints ...
(Date:10/22/2014)... 22, 2014 Research and Markets  has ... by Material, by Application, Geography - Global Analysis and ... Organic electronics, also called as polymer ... science which deals with small conductive molecules and electrically ... molecules and polymers are carbon based, made using synthetic ...
Breaking Biology Technology:The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 2The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 3myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3
... N.J., March 11 Amicus Therapeutics (Nasdaq: ... Chief Executive Officer John F. Crowley will be presenting ... Conference. Mr. Crowley,s presentation is scheduled to begin ... can listen to a live webcast of the presentation ...
... LASIK Surgeons directory service and website at www.TrustedLASIKSurgeons.com ... seeking to improve their vision and find a highly ... attaining 20-20 vision. What sets the Trusted LASIK ... that only those who are among the best in ...
... easily implementable technique to avoid reblockage of arteries that ... been developed by researchers led by Prof. Boris Rubinsky ... Angioplasty is the "gold-standard" treatment for acute myocardial infarction ... in blood supply to part of the beating heart, ...
Cached Biology Technology:Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 2Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 3Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 4Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 5Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 6Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 7Trusted LASIK Surgeons Welcomes Leading Laser Expert and Inventor Jon Dishler, M.D., to Its Unique LASIK Eye Surgeon Directory for Consumers 8Hebrew University scientist develop technique for eliminating reblockage of arteries 2
... surface is produced by a patented microwave ... giving more consistent, even cell attachment, increased ... attachment and growth uunder difficult conditions, including ... may provide a more ecominic alternative to ...
... analysis and experiment control software. Records ... on-line and off-line analysis. powerful stimulus ... language allowing the user to customize ... Applications range from basic data logging ...
... a direct antibiotic-based selection ... Recombinant selection depends solely ... the need for costly ... and inexpensive process provides ...
... been designed and created in order to ... genotyping analysis tool. We incorporated the suggestions ... the software. Their main requirements were ease- ... acquisition cost. GeneMarker can perform analysis ...
Biology Products: