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:7/25/2014)... autism and disrupted brain development is an essential ... is largely unknown. However, thanks to funding from ... Washington University (GW) researcher Anthony-Samuel LaMantia, Ph.D. may ... answers to these key questions in the field ... pharmacology and physiology at the GW School of ...
(Date:7/25/2014)... University of Adelaide has opened the way for the development ... , In Australia, annual barley production is second only to ... one of the most important diseases of barley. , Senior ... composition of special growths on the cell walls of barley ... leaf. , The research, by the ARC Centre of Excellence ...
(Date:7/25/2014)... Stowers Institute for Medical Research have identified the ... pheromones crucial to triggering the mating process in mice. ... male mouse detect pheromones that indicate when a female ... know if the female mouse is ovulating and ready ... trigger mating. Stowers, researchers believe mice developed this system ...
Breaking Biology News(10 mins):GW researcher receives grant to answer the how and why of autism during development 2New hope for powdery mildew resistant barley 2It takes two to court 2It takes two to court 3
... to train workforce, stimulate economy ALEXANDRIA, Va., May 7 ... 2010 budget request, proposing level funding for the Carl ... at $1.3 billion. The Perkins Act is the primary ... that connect education and real-world careers. The Association for ...
... Providers Team Up to Provide High Volume Transaction ... SHORES, Calif. and NEW YORK, May 11 ... Board: CICI), a leading supplier of electronic signature ... industry* and the recognized leader** in biometric signature ...
... and BEIJING, May 20 Validus Technologies Corporation ... they have formed a strategic manufacturing, marketing and ... of One Time Password (OTP) authentication products to ... http://www.newscom.com/cgi-bin/prnh/20081104/AQTU067LOGO )With increasing data breaches, which have created ...
Cached Biology News:Obama Budget Level Funds Career Technical Education 2Obama Budget Level Funds Career Technical Education 3Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 2Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 3Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 4Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 5Validus and HierStar Form Strategic Alliance to Offer the First Complete Range of Authentication Products 2Validus and HierStar Form Strategic Alliance to Offer the First Complete Range of Authentication Products 3
(Date:7/25/2014)...  Galmed Pharmaceuticals Ltd. (Nasdaq: GLMD ) ... and commercialization of a once-daily, oral therapy for the ... financial results for the period ended June 30, 2014. ... Reported cash and cash equivalents totaling $37.4 million on ... 2013.  , Reported a net loss of $3.9 ...
(Date:7/25/2014)... 25, 2014 Sinovac Biotech Ltd. (Nasdaq: ... China , today announced that it will release ... 30, 2014, after market close on Thursday, August 14, 2014 ... the market opening on Friday, August 15, 2014, at 8:00 ... Standard Time) to review the Company,s financial results and provide ...
(Date:7/24/2014)... July 24, 2014 Gain recognition ... Supply Chain of the biotech industry. Nominations are ... Awards, brought to you by the Bio ... of supply chain management professionals for the past ... stakeholders of the Biotech industry – Manufacturers, Service ...
(Date:7/24/2014)... 2014  ECC West Africa, LLC (ECC) signed a ... University College Hospital (UCH) Ibadan Board of Management for ... design, construct, and operate and maintain a new, state-of-the-art ... Under the first of the 4-phase project, ECC will ... applications. UCH Ibadan intends to finance and develop the ...
Breaking Biology Technology:Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 3ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2
... to Take Full Control of the Entire Clinical ... Disclosure - while Adhering to Changing Regulatory Requirements; ... Their Clinical Trial Registration and Results Disclosure ProcessesNEW ... http://www.intrasphere.com ), a leading services ...
... - European Operating Room Nurses Association ... Accepted,for Accreditation , Earlier today, ... has announced it has taken a further step in ... continued,education. , After receiving earlier ...
... Researchers at Eindhoven University of Technology (TU/e) have developed ... the first time they used mechanical forces to control ... in chemistry. This allowed them to initiate chemical reactions ... developing materials capable of repairing themselves under the influence ...
Cached Biology Technology:Intrasphere Technologies Releases Version 1.5 of Its PharmaCM Clinical Trial Registration Solution Powered by Microsoft 2Intrasphere Technologies Releases Version 1.5 of Its PharmaCM Clinical Trial Registration Solution Powered by Microsoft 3Intrasphere Technologies Releases Version 1.5 of Its PharmaCM Clinical Trial Registration Solution Powered by Microsoft 4Ansell Healthcare Espresses Firm Commitment to Support Continued Education of Healthcare Professionals Worldwide 2Ansell Healthcare Espresses Firm Commitment to Support Continued Education of Healthcare Professionals Worldwide 3Ansell Healthcare Espresses Firm Commitment to Support Continued Education of Healthcare Professionals Worldwide 4A molecular ripcord for chemical reactions 2
... N. Fernandez and G. Butcher (1998). ... subject of much research in the immunology ... structure of MHC proteins and in their ... are now faced with the prospect of ...
DALT GRADIENT MAKER,230V, 1 EA. Category: 2D DALT Systems....
actin from rabbit muscle Cell Biology Cytoskeletal Probes Actin and Actin Probes...
Rat whole blood (Sprague-Dawley, averaging 7-8 weeks of age, either sex) is collected at the time of slaughter and refrigerated within 6 hours, and processed and frozen within 24 hours. The serum is ...
Biology Products: