Navigation Links
For crickets, parasitic flies can stop the music

Love hurts ?really bad, for some unlucky crickets, anyway.

Male crickets draw not only females with their songs but also parasitic flies. The uninvited guests then deposit larvae that burrow into their amorous hosts, grow for about a week and then tear their way out in "Alien" fashion, killing the cricket as they emerge.

Now, University of Florida zoologists have found that the danger posed by the flies has apparently affected when crickets sing. In experiments with Southeastern U.S. field crickets, known scientifically as Gryllus rubens, they discovered that considerably fewer male crickets sing in the autumn when the parasitic flies are abundant. They also found that female crickets are reluctant to approach singing males in the fall, perhaps unknowingly avoiding becoming the target of the flies themselves.

The findings, reported in a pair of recent papers in the journals Ethology and Animal Behavior, are of interest because they shed light on the interplay between the powerful evolutionary forces of sexual selection and natural selection, said UF zoology professor Jane Brockmann.

On the one hand, singing and finding mates increases a male’s reproductive success; on the other, it also carries high potential costs, Brockmann said. "The interesting question is how exactly do these conflicting pressures play out in evolution""

Scientists have known for some time that parasitic flies, known scientifically as Ormia ochracea, deposit larvae on, or near, singing crickets. The larvae burrow into the insects, then feed on nonessential organs within the cricket while they grow. After they emerge from the dying cricket, they pupate and metamorphose into mature flies.

Brockmann and co-author Manuel Vélez, a former UF student who earned his doctorate in 2004, hypothesized that the presence of flies would affect how male crickets sing and how females respond. Examining wild crickets native to North Florida, they devised
'"/>

Source:University of Florida


Page: 1 2 3

Related biology news :

1. Yale researchers identify molecule for detecting parasitic infection in humans
2. Worm hormone discovery may aid fight against parasitic disease
3. Researchers add crucial information on how the bodys T cells react to parasitic diseases
4. Common parasitic infection leads to increased risk for HIV infection
5. Master gene controls healing of skin in fruit flies and mammals
6. Remote control flies? Fly behavior controlled by laser light
7. UI researcher studies deafness in fruit flies, humans
8. How monarch butterflies are wired for navigation
9. Gap-climbing fruit flies reveal components of goal-driven behaviors
10. Expanding forests darken the outlook for butterflies, study shows
11. Hormones and growth: The control of body size and developmental growth rate in fruit flies
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: For crickets parasitic flies can stop the music

(Date:4/18/2014)... Asteroid and comet impacts can cause widespread ecological havoc, ... global scales. But new research from Brown University shows ... life at the time of an impact. , A ... found fragments of leaves and preserved organic compounds lodged ... Argentina. The material could provide a snapshot of environmental ...
(Date:4/17/2014)... chili peppers. Information about archaeological remains of ancient chili ... appearance of words for chili peppers in ancient dialects ... highlight the value of multi-proxy data analysis. Their results ... papers presented in a special feature issue of the ... on plant and animal domestication edited by Dolores Piperno, ...
(Date:4/17/2014)... detection cartridge developed at Sandia National Laboratories and recently ... faster and cheaper. , Bacillus anthracis , ... soils all over the world and can cause serious, ... The bacteria can survive in harsh conditions for decades. ... occur through skin contact, inhalation of spores or eating ...
Breaking Biology News(10 mins):Impact glass stores biodata for millions of years 2Impact glass stores biodata for millions of years 3Chickens to chili peppers 2Chickens to chili peppers 3Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3
... Ore. Eating a high-fat diet during pregnancy increases the ... & Science University. The new data show eating a typical ... from the mother to the placenta, the temporary organ that ... a fatty diet contributes to stillbirth was unclear. The findings ...
... study concludes that models may be predicting releases of ... too low, depending on the region, because they don,t ... of carbon released from soil. The study points ... gas emissions from soils based on "average" projected temperatures. ...
... 31, 2011 To mark the International Year of ... place at the Palais des congrs de Montral from June ... annual event in Canada to focus on science and the ... Department of Chemistry at the Universit de Montral, and Ann ...
Cached Biology News:Study reveals how high-fat diet during pregnancy increases risk of stillbirth 2Climate projections don't accurately reflect soil carbon release 2Climate projections don't accurately reflect soil carbon release 3Healthy dose of chemistry coming to Montreal 2Healthy dose of chemistry coming to Montreal 3
(Date:1/14/2014)... New York, NY (PRWEB) January 14, 2014 ... coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua is an ... products to serve the wound care market. , Free ... Alliqua was restructured with a seasoned management team and ...
(Date:1/14/2014)... Md. , Jan. 14, 2014  Organovo announced today ... the National Institutes of Health (NIH) to help scientists ... treatments to patients on a faster timeline. Organovo is ... (NCATS) and the National Eye Institute (NEI) to develop ...
(Date:1/14/2014)... Canada (PRWEB) January 14, 2014 In ... its motives and methods in product development and promotion ... the industry. This mistrust, fueled by concerns about the ... fed by reports of spectacular fines to the world’s ...
(Date:1/14/2014)... Global Record Systems, LLC, (GRS), ... solutions for patients, physicians, the biopharmaceutical industry, regulators, ... the signing of a three-year Research Collaboration Agreement ... (FDA). This initiative is designed to generate ...
Breaking Biology Technology:EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... CTIC ; MTAX: CTIC) announced today that it ... shares. This share issue will equate to,approximately 1.2% percent ... on Wednesday, January 16, and to raise approximately,$1,270,000 (euros ... to the Step-Up Equity Financing Agreement entered into by ...
... BioSpecifics,Technologies Corp. (Pink Sheets: BSTC.PK) today announced ... stock, in a private placement,offering to an investment ... share for,aggregate proceeds to the Company of $2,100,000., ... Corp. is a biopharmaceutical company that has,developed and ...
... TAI,AN CITY, Shandong, China, Jan. 14 /Xinhua-PRNewswire-FirstCall/ ... ("China Biologic" or the,"Company"), one of the ... People,s Republic of China ("China" or the ... RMB1.5 million (approximately US$0.2,million) award by the ...
Cached Biology Technology:Cell Therapeutics, Inc. (CTI) Prices $1.27 million (euros 856.000) Offering of Common Stock through Societe Generale 2China Biologic Products Gains Financial Support from Shandong Provincial Government on the Improvement of Production Facilities 2China Biologic Products Gains Financial Support from Shandong Provincial Government on the Improvement of Production Facilities 3