Navigation Links
Biologists expose hidden costs of firefly flashes
Date:9/19/2007

MEDFORD/SOMERVILLE, Mass. -- A new study by biologists at Tufts University has discovered a dark side lurking behind the magical light shows put on by fireflies each summer. Using both laboratory and field experiments to explore the potential costs of firefly courtship displays, the biologists have uncovered some surprising answers.

The research, to be published in the November 2007 issue of American Naturalist and now available online (http://www.journals.uchicago.edu/cgi-bin/resolve?id=doi:10.1086/521964), revealed that its energetically cheap for fireflies to produce their distinctive flash signals, but that flashier males are more likely to end up on the dinner table.

On summer evenings, male Photinus fireflies lift off into the air to broadcast their bioluminescent flashes in search of females. Females perched in the grass sit and admire passing males and, if they're interested, will flash in response. Previous research on many different firefly species has shown that females respond more readily to males that give longer flashes, as well as those with faster flash rhythms. This female choice favors firefly males that produce more conspicuous flashes.

"Since females so clearly prefer the flashier males, one thing that's been puzzling scientists is what's keeping these males from evolving longer and longer, faster and faster flashes," says Sara Lewis, professor of biology at Tufts and leader of the research team that included postdoctoral researcher William Woods and two undergraduate students. In theory, there might be some hidden costs to more conspicuous flashes, but what are they"

To answer this question, the researchers set out to look at two potential costs of firefly flash signals. First they measured the energy that fireflies expend while they're producing their bioluminescent flashes. In carefully controlled laboratory expe
'/>"/>

Contact: Kim Thurler
kim.thurler@tufts.edu
617-627-3175
Tufts University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Octopuses occasionally stroll around on two arms, UC Berkeley biologists report
2. GeneNotes - A novel information management software for biologists
3. Biologists discover why 10% of Europeans are safe from HIV
4. Biologists determine genetic blueprint of social amoeba
5. FSU biologists describe key role of signal-transcribing gene during cell cycle
6. Biologists call for better choice of model organisms in evo-devo
7. NYU biologists map out early stages of embryo formation
8. Biologists Crack Genetic Code for Specialized Spider Silk
9. Biologists discover new pathway into plant cells
10. High-tech tags on marine animals yield valuable data for biologists and oceanographers
11. UCSD biologists find new evidence for one-way evolution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/18/2015)... Fingerprint Cards (FPC) has received an ... and FPC1035 from one if its module partners. Deliveries are ... 2015 and the sensors will be used by smartphone manufacturers ... 2015 hereby amount to 740 MSEK to date. In addition ... and a number of smaller orders not separately communicated amounting ...
(Date:5/11/2015)... , May 11, 2015  Synaptics Incorporated (NASDAQ: ... interface solutions, today announced the appointment of ... Chief Financial Officer, reporting to Rick Bergman ... current Chief Financial Officer, Kathleen Bayless , ... Mr. Ali brings extensive financial management ...
(Date:5/10/2015)... Fingerprint Cards (FPC) has received an ... the distributor World Peace Industrial Group (WPI), part of WPG ... Asia . Deliveries are planned to take place during ... manufacturers in China . The order value ... of + 1 000 MSEK for 2015.   Jörgen ...
Breaking Biology News(10 mins):Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 235 Million 2
... virus as for example HIV and bird flu able to ... purpose of the virus? Researchers at the University of Copenhagen ... a collaboration between molecular biologists and physicists. ”The molecular biologists ... interplay between the intercellular parts, while the physicists have the ...
... testosterone levels of healthy men decline as they get older. ... objectively measured differences in the amount of sleep a healthy ... the morning, according to a study published in the April ... by Plamen Penev, MD, PhD, of the University of Chicago, ...
... in the spinal cord of a larval zebrafish, Cornell ... that regulates the speed of the fish’s movement. The ... spinal cords and Parkinson’s disease, where movements slow down ... of Recruitment in Spinal Cord," published in the March ...
Cached Biology News:Danish researches solve virus puzzle 2Fast and slow -- How the spinal cord controls the speed of movement 2
(Date:5/29/2015)... Translation is frequently listed as one of the ... used in a way that is right for a company, ... product or service offering. , Here are some of ... on a company's bottom line: , 1.    Attract bigger audience. , ... can use, why not offer it globally? Nelson Mandela once ...
(Date:5/28/2015)... 28, 2015 Research ... the addition of Jain PharmaBiotech,s new report ... and Companies" to their offering. ... This report deals with therapeutic drug monitoring, ... patient care by monitoring drug levels in ...
(Date:5/28/2015)... , May 28, 2015 ... ) has announced the addition of ... - Technologies, Markets and Companies"  to ... ,This report describes and evaluates animal ... medicine and pharmaceuticals as well as ...
(Date:5/28/2015)... Research and Markets( http://www.researchandmarkets.com/research/l9dqwt/animal_genetics ) has announced ... Products, by Testing services - Global Forecast to 2020" ... animal genetics market is estimated to be worth around ... of 8-9% during the forecast period of 2014 to ... increasing animal protein consumption, increasing adoption of advanced genetic ...
Breaking Biology Technology:Three Ways Translation Can Help Businesses Grow 2Global Therapeutic Drug Monitoring Market 2015-2024 2Global Animal Biotechnology Report 2015 - Technologies, Markets and Companies Analysis to 2024 2Global Animal Biotechnology Report 2015 - Technologies, Markets and Companies Analysis to 2024 3Global Animal Genetics (Canine, Equine, Poultry, Porcine, Bovine, and Genetic Material) Market 2015 - Global Forecast to 2020 2
... Ohio, Oct. 18, 2011 Minimally Invasive Devices, Inc ... new product, FloShield PLUS , utilizing the novel Flo-X ... of the end of the laparoscope without removal from the ... MID,s FloShield laparoscopic visualization system. In the first 19 FloShield ...
... Oct. 18, 2011 Ikaria, Inc., a critical care ... to address the significant needs of critically ill patients ... its Chairman and CEO, Daniel Tasse, will present at ... Tasse,s presentation will be given on Tuesday, October 25, ...
... GenVec, Inc. (NASDAQ: GNVC ) today announced ... present a Company overview highlighting recent developments at the 2011 ... at 3:00 p.m. PDT at the Palace Hotel in San ... will be available both live and on replay. The presentation ...
Cached Biology Technology:Ikaria® to Present at 2011 BIO Investor Forum 2GenVec to Present at the 2011 10th Annual BIO Investor Forum 2