Navigation Links
Mosquitoes create harmonic love song before mating, study finds
Date:1/8/2009

ITHACA, N.Y. That pesky buzz of a nearby mosquito is the sound of love, scientists have known for some time. But a new Cornell study reports that males and females flap their wings and change their tune to create a harmonic duet just before mating.

Cornell entomologists have discovered that male and female mosquitoes (Aedes aegypti), which can spread such diseases as yellow and dengue fevers, "interact acoustically with each other when the two are within earshot -- a few centimeters of each other," said Ron Hoy, professor of neurobiology and behavior.

The study is available online today (Jan. 8) and will be published in a February issue of Science, said Cornell associate professor of entomology and mosquito expert Laura Harrington, a co-senior author on the study with Hoy.

"The frequency at which males and females converge is a harmonic or multiple of their wing-beat frequencies, which is approximately 400 hertz [vibrations per second] for the female and 600 hertz for the male," said Hoy.

The mating duet, generated just before the couple mates on the fly, settles at around 1,200 hertz -- roughly an octave and a half above concert A (the pitch to which instruments are tuned -- the A that has a frequency of 440 hertz and is above middle C). "That is significantly higher than what was previously thought to be mosquitoes' upper hearing limit," he added.

Interestingly, the mosquitoes adjust the harmonic resonance of their thoracic box to produce a harmonic frequency that converges at a frequency that is the female's third harmonic (three times her fundamental frequency) and the male's second harmonic (two times his fundamental frequency). The study also is the first to definitively show that contrary to previous thought, female mosquitoes are not deaf.

To study mosquito mating calls, the researchers tethered mosquitoes and flew them past each other while recording the flight tones with a special microphone. Co-first author Benjamin Ar
'/>"/>

Contact: Blaine Friedlander
bpf2@cornell.edu
607-254-8093
Cornell University Communications
Source:Eurekalert

Page: 1 2

Related biology news :

1. Earlier bites by uninfected mosquitoes boost West Nile deaths in lab mice
2. Researchers put the bite on mosquitoes
3. Netting mosquitoes to prevent malaria
4. Pathway found that lets mosquitoes fatten up, slow down for winter
5. No more big stink: scent lures mosquitoes, but humans cant smell it
6. MIT creates 3-D images of living cell
7. Newly created cancer stem cells could aid breast cancer research
8. Natural insecticide re-created in the lab
9. Auto immune response creates barrier to fertility; could be a step in speciation
10. Researchers develop simple method to create natural drug products
11. Using evolution, UW team creates a template for many new therapeutic agents
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... pancreas digesting itself resulting in severe abdominal pain, vomiting ... 20,000 patients are diagnosed with the disease resulting in ... is restricted to intravenous fluid and nutritional support. ... Sciences, who led the research, said "The major causes ... and excessive alcohol intake combined with a high fat ...
(Date:8/20/2014)... SALT LAKE CITY Researchers at Huntsman Cancer Institute (HCI) ... mutated forms of the gene that encodes BCR-ABL, the ... (CML). According to the American Cancer Society, nearly 6,000 ... , Drugs already in use, called tyrosine kinase inhibitors ... disease. They do not cure CML but control it ...
(Date:8/20/2014)... State University, the Wellcome Trust Sanger Institute and the ... Mycobacterium pinnipedii from skeletons found in Peru ... is a relative of the TB bacterium that affects ... These researchers assume that seals carried the pathogens from ... lions was unexpected" comments Sebastien Gagneux, from the Swiss ...
Breaking Biology News(10 mins):Insulin offers new hope for the treatment of acute pancreatitis 2Blueprint for next generation of chronic myeloid leukemia treatment 2
... heart having limited ability to regenerate following injury, heart disease ... developed world. Research impacting strategies for heart repair will be ... Houston (UH). Eric N. Olson, a molecular biologist ... "Heart Making and Heart Breaking: New Strategies for Heart Repair." ...
... Tampa, Fla. (May. 8, 2012) Two studies appearing ... (20:11-12), now freely available on-line at http://www.ingentaconnect.com/content/cog/ct/ , ... that may make them therapeutically useful and appropriate for ... immature dental pulp stem cells , A ...
... Angeles, CA (May 8, 2012) A new study from ... when men chair committees that select scientific awards recipients, males ... new study also reports that while in the past two ... scientific achievements, compared to men, they win more service and ...
Cached Biology News:New heart repair strategies discussed at UH lecture May 15 22 Cell Transplantation studies impact dental stem cell research for therapeutic purposes 22 Cell Transplantation studies impact dental stem cell research for therapeutic purposes 3Women's scientific achievements often overlooked and undervalued 2
(Date:8/21/2014)... 2014 Telomere Biosciences, LLC (Telomere Biosciences) ... for Dogs" with Telomerase Activation Complex , ... world for dogs. Telomeres are the protective caps ... body. A wealth of ground-breaking research by some ... and Aging, including Nobel laureates, has demonstrated a ...
(Date:8/21/2014)... , Aug. 21, 2014 ... Immune Pharmaceuticals Inc., a biotechnology company, on its ... Immune previously traded on OTCQX®, the best marketplace ... OTC Markets Group. Logo - http://photos.prnewswire.com/prnh/20110118/MM31963LOGO ... on the successful execution of its growth strategy ...
(Date:8/21/2014)... Ontotext S4 , The Self Service Semantic ... Now the same enterprise hardened text mining, Linked Data ... is available to start-ups and mid-size businesses at a ... do not have resources to evaluate and prototype enterprise ... there is no need for on premise hardware provisioning ...
(Date:8/20/2014)... RALEIGH, N.C. , Aug. 20, 2014 /PRNewswire/ ... clinical research services located in Raleigh, ... Bradford Evans as Vice President of ... Administration, Brad will oversee all corporate processes, including ... to joining Clintrax Global, Brad worked as an ...
Breaking Biology Technology:Telomere Biosciences Announces: TELO-20 for Dogs, the World's First Telomere-Lengthening Supplement for Dogs, to Promote Healthy Aging and Longevity 2Telomere Biosciences Announces: TELO-20 for Dogs, the World's First Telomere-Lengthening Supplement for Dogs, to Promote Healthy Aging and Longevity 3OTC Markets Group Congratulates Immune Pharmaceuticals on NASDAQ Listing 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 2Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 3Ontotext Releases Text Mining & Semantic Technology Running in the Cloud – Welcome to “S4? 4Clintrax Global, Inc. Announces Addition to Executive Team 2
... 11, 2008 RiverVest Venture Partners,announced today that ... Venture Fund II, L.P., with total committed capital ... which was licensed,as a Small Business Investment Company, ... tier of leverage from the Small Business Administration., ...
... CAMBRIDGE, Mass., April 11 Biopure,Corporation (Nasdaq: ... United Kingdom,s,Medicines and Healthcare products Regulatory Agency ... to be in general compliance,with the principles ... in the Commission Directives. The company received ...
... Renowned Clinic Invests in Extracranial Radiosurgery, SUNNYVALE, ... ), a global leader in the field of ... part of the renowned,Hirslanden group of private hospitals, ... System sold in Switzerland, allowing patients greater,access to ...
Cached Biology Technology:RiverVest Venture Partners(R), a St. Louis-Based Venture Capital Firm Focusing on Life Sciences, Closes on Fund II, Names John P. McKearn, Ph.D., Venture Partner 2RiverVest Venture Partners(R), a St. Louis-Based Venture Capital Firm Focusing on Life Sciences, Closes on Fund II, Names John P. McKearn, Ph.D., Venture Partner 3Biopure Operations Compliant With U.K. Manufacturing Guidelines 2Biopure Operations Compliant With U.K. Manufacturing Guidelines 3First CyberKnife System Sold in Switzerland 2First CyberKnife System Sold in Switzerland 3First CyberKnife System Sold in Switzerland 4
GRADIENT MAKER, 30 ML, 1 EA. Category: Protein Vertical Instruments....
Recombinant Rat Leptin, CF...
actin from rabbit muscle Cell Biology Cytoskeletal Probes Actin and Actin Probes...
...
Biology Products: