Navigation Links
Flight patterns reveal how mosquitoes find hosts to transmit deadly diseases
Date:9/30/2011

RIVERSIDE, Calif. -- The carbon dioxide we exhale and the odors our skins emanate serve as crucial cues to female mosquitoes on the hunt for human hosts to bite and spread diseases such as malaria, dengue and yellow fever.

Two entomologists at the University of California, Riverside have now performed experiments to study how female Aedes aegypti -- mosquitoes that transmit yellow fever and dengue -- respond to plumes of carbon dioxide and human odor.

The researchers report in the October 15 issue of the Journal of Experimental Biology that puffs of exhaled carbon dioxide first attract these mosquitoes, which then proceed to follow a broad skin odor plume, eventually landing on a human host.

The results from the study by Ring Card, a distinguished professor of entomology at the University of California, Riverside, and Teun Dekker, formerly a graduate student in Card's lab and now an assistant professor at the Swedish University of Agricultural Research, could clue scientists on how odors can be used in traps for intercepting and capturing host-seeking mosquitoes.

Yellow fever is a viral disease that causes 30,000 deaths worldwide each year. Dengue, another viral disease, infects 50 to 100 million people worldwide a year, leading to half a million hospitalizations, and 12,500,000 deaths.

In the lab, the researchers released female yellow fever mosquitoes into a wind tunnel they built, and filmed their flight paths. They found that:

  • Mosquitoes head upwind only briefly when they encounter just a whiff of carbon dioxide but proceed continuously upwind when the carbon dioxide plume is turbulent, fluctuating in concentration
    '/>"/>

Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
Source:Eurekalert  

Page: 1 2

Related biology news :

1. First global portrait of greenhouse gases emerges from pole-to-pole flights
2. The flight of the bumble bee: Why are they disappearing?
3. Bone loss prevention experiment on the last space shuttle flight
4. In fireflies, flightless females lose out on gifts from males
5. Final flight of space shuttle Discovery to carry 2 payloads built by CU-Boulder
6. For ever and ever: When the wedding flight never ends
7. UW leading $7.5 million study of animal flight and aerial vehicles
8. BU partners in 5-year, $7.5M grant to study animal flight
9. Artificial butterfly in flight and filmed
10. Immune system compromised during spaceflight, study finds
11. ArounderTouch: A First-Class Ticket to Your Flights of Fancy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Flight patterns reveal how mosquitoes find hosts to transmit deadly diseases
(Date:8/19/2014)... New measurements from fish purchased at retail seafood ... to which mislabeling can expose consumers to unexpectedly ... Fishery stock "substitutions"which falsely present a fish of ... originare the most dangerous mislabeling offense, according to ... scientists. , "Accurate labeling of seafood is essential ...
(Date:8/19/2014)... a biomarker strongly associated with basal-like breast cancer, ... many types of chemotherapy. The biomarker, a protein ... therapeutics designed to treat this often deadly cancer. ... The Cancer Genome Atlas, molecular biologists Curt M. ... and bioinformatics techniques to detect patterns of gene ...
(Date:8/19/2014)... -- Scientists at the Houston Methodist Research Institute have ... cells using a pipette -- a common laboratory tool ... and preliminary test results in a recent issue of ... , "Studying single cells and their unique functions has ... department. faculty member Lidong Qin, Ph.D., the project,s principal ...
Breaking Biology News(10 mins):Seafood substitutions can expose consumers to unexpectedly high mercury 2Seafood substitutions can expose consumers to unexpectedly high mercury 3Biomarker in an aggressive breast cancer is identified 2Biomarker in an aggressive breast cancer is identified 3Moving single cells around -- accurately and cheaply 2
... takes on special significance when scientists and students gather. ... success and survival with bright colors, flash and iridescence ... and materials scientists will delve into whats behind all ... held Feb. 6-9 at Arizona State University in Tempe, ...
... in the Earth,s oceans consume 90 percent of the ... ice preventing large amounts of methane from reaching ... microbes that accomplish this feat do not simply reverse ... compound instead. "The dominant role anaerobic oxidation of ...
... grants have been awarded to Public Health faculty at Weill ... Kenneth W. Griffin is the recipient of a three-year $1.6 ... (NIDA) for research into the long-term effects of a school-based ... New York City middle schools. The study will focus on ...
Cached Biology News:Iridescence workshop promotes nature's nanotechnology 2Paired microbes eliminate methane using sulfur pathway 22 federal public health grants awarded to Weill Cornell Medical College 2
(Date:8/18/2014)... FREDERICK, Md. , Aug. 18, 2014 ... the maker of advanced consumer medical devices ... Kotak was interviewed by CEOLIVE.TV as ... The entire interview is available at ... interview Dr. Kotak explains to investors the ...
(Date:8/18/2014)... 2014 Global HIV Infection Drug Market ... by Reportstack. The rate of HIV infection and the number ... note at a positive rate across the globe. It has ... in 2005 to 1.5 in 2013, with the rates for ... drastic changes in the infection rates has been the improved ...
(Date:8/18/2014)... Fla. , Aug. 18, 2014 TNI ... biotechnology company pioneering the manufacturing and marketing of innovative ... that the Company is providing a second notice of ... In making the announcement, Noreen Griffin , ... you in advance for your participation in the Annual ...
(Date:8/18/2014)... August 2014 Vier führende deutsche ... klinische Studie auf, in der eine Intraokularlinse ... das Sehvermögen bei allen Entfernungen verbessern, so ... keine Lese- oder Gleitsichtbrille mehr benötigen. Die ... FluidVision Accommodating Intraocular Lens (FluidVision akkomodative ...
Breaking Biology Technology:BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 2BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 3Global HIV Infection Drug Market Overview 2Global HIV Infection Drug Market Overview 3Global HIV Infection Drug Market Overview 4TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 2TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 3TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 4Implantation einer revolutionären akkommodativen Linse bei Katarakt-Patienten in deutschen Augenzentren im Rahmen einer internationalen klinischen Studie 2Implantation einer revolutionären akkommodativen Linse bei Katarakt-Patienten in deutschen Augenzentren im Rahmen einer internationalen klinischen Studie 3Implantation einer revolutionären akkommodativen Linse bei Katarakt-Patienten in deutschen Augenzentren im Rahmen einer internationalen klinischen Studie 4
... requires proper wound closure to ensure timely healing and ... received a $100,000 federal grant to develop alternatives to ... develops tissue repair products and advanced coatings for implanted ... Innovation Research grant. , ,The peer-reviewed grant, which ...
... athlete only three years ago, but his Milwaukee-based mobile software ... opening in 1996. , ,And now, the route of ... Asia. , ,Psuik, founder and owner of Developer ... with O2 , a European mobile phone provider, to ...
... Madison, Wis. - Now that two companies he ... another exit strategy, Brian Wiegand's days as a self-described ... the Madison-based NameProtect , a developer of digital ... Service Co. of Wilmington, Del. , ,He will ...
Cached Biology Technology:Milwaukee software developer gains bottom line, loses waistline 2Milwaukee software developer gains bottom line, loses waistline 3Milwaukee software developer gains bottom line, loses waistline 4NameProtect sold, tech entrepreneur to focus on Jellyfish.com 2
... CLS number is a new ... match Cornings product number. If ... order under the old Sigma-Aldrich ... service for assistance. ID clarifier: ...
ID clarifier: With ethidium bromide (50 μg/ml)...
... Pre-tested for optimal colony ... the growth of anchorage-dependent ... methylcellulose colony-forming assays of ... cells. Not suitable for ...
... simultaneous dual parameter assay for mitochondrial ... activity. Active caspases are detected by ... which are cell-permeable, non-cytotoxic and bind ... the cells. At the same time ...
Biology Products: