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:12/17/2014)... 16, 2014  Automation is fundamentally transforming the travel experience ... borders. Over the past decade, ePassports, biometric readers, and ... process through border control via eGates and Automated Passport ... seaports, and land borders across the globe. ...
(Date:12/11/2014)... , Dec. 10, 2014  That blood pressure plays a role ... Hypertension – the medical term for high blood pressure – ... and the inflatable cuff that,s used in measuring blood pressure ... there,s nothing new about hypertension, its triggers and its effects. ...
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Wake Forest Baptist Medical ... for its School of Medicine. Funding for this $50 million ... will be publicly launched next summer. The ... series R.J. Reynolds Tobacco Company complex, adjacent to 525@vine in ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... Yale is a founding member of the Genome-Wide RNAi ... centers formed to speed scientific and medical discoveries that ... is sponsored by Dharmacon, Inc. , manufacturer of ... of short, interfering ribonucleic acid sequences. The library is ...
... provide some of the most compelling evidence yet that ... standards--causes heart disease. Previous studies have linked air pollution ... understood how pollution damaged the body's blood vessels. , ... as polluted as the air in New York City, ...
... a swordtail fish, that is. As the size and ... preference for males with asymmetrical markings, according to a ... of biological sciences, and colleagues found that older female ... symmetrical males when offered a choice. These findings are ...
Cached Biology News:Yale participates in global human genome initiative 2Researchers show how air pollution can cause heart disease 2Researchers show how air pollution can cause heart disease 3Older female fish prefer imperfect male mates, study finds 2Older female fish prefer imperfect male mates, study finds 3
(Date:1/22/2015)... , Jan. 22, 2015  Derma Sciences, Inc. (Nasdaq: ... focused on advanced wound care, announces that AMNIOEXCEL® ... have been added to the Premier, Inc. Regenerative ... opportunity for the AMNIOEXCEL® and AMNIOMATRIX® product lines, ...
(Date:12/24/2014)... , Dec. 24, 2014  Vermillion, Inc. (Nasdaq: ... gynecologic disease, announced today that the Company closed ... Oracle Investment Management, Jack W. Schuler , ... proceeds were $10.5 million, before offering expenses.  The ...
(Date:12/24/2014)... Boston, MA (PRWEB) December 23, 2014 Earlier ... James L. Sherley, director of the Adult Stem Cell Technology ... overlooked and under appreciated unique property of adult tissue stem ... Misunderstood in the Past, Important for the Future,” embodied the ...
(Date:12/24/2014)... December 23, 2014 The report ... its definition, classification, application and industry overview. This ... product cost structure. Production is separated by regions, ... raw materials, equipment, downstream client survey, marketing channels, ...
Breaking Biology Technology:Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2
... DNDN ) today announced the following data presentations ... Meeting in Chicago, as well as a Dendreon-sponsored IMPACT ... April 28, 2009, ... phase III trial of sipuleucel-T in men with metastatic, ...
... - Strong Product Offerings and ... Nucletron, a global leader in radiation oncology, ... of EUR112.4 million (US $165,million). EBITDA in 2008 ended ... million with a strong fourth quarter contributing significantly to,the ...
... published their assembly of the domestic cow ( Bos ... community. The new version of the cow genome improves ... and accuracy. The article describing their research is freely ... Biology . , The research team led by Steven ...
Cached Biology Technology:Dendreon Announces Data Presentations and Webcast at AUA Annual Meeting 2Nucletron Announces 2008 Results 2New cow genome sequence released 2
Request Info...
RABBIT ANTI TRANSFERRIN RECEPTOR...
Reusble. Uses in conjunction with the Apoptotic Cell Isolation Kit....
RABBIT ANTI HUMAN ATR (aa2122-2380) Immunogen: Human ATR peptide, amino acids 2122-2380...
Biology Products: