Navigation Links
SU scientists find that in the evolutionary mating game, brawn and stealth rule
Date:12/23/2010

und in the wild."

The most recent study in BMC Evolutionary Biology found that while females prefer reds and yellows they go for the winner of fin-to-fin combat in a significant number of cases. In the study, the larger parae almost always prevailed, thus gaining a mating advantage despite its less-than-desirable coloration. Immaculatas, which are the smallest males, generally shunned the showy displays of violence and were mostly ignored by all but yellow males. The larger yellows almost always defeated immaculatas, stopping them from approaching females.

"In the absence of male-to-male competition, we found that females will almost always choose a red male," Hurtado-Gonzales says. "However, if the red loses a fight, the female will generally seek out the winner. In most cases, that is the larger parae, which is the most dominant male."

Immaculatas compensate for their lack of physical prowess and attractiveness through a mating strategy that relies on stealth. In a 2009 study published in the journal Animal Behavior, Hurtado-Gonzales found that the immaculatas' drab color provides camouflage that enables them to stealthy mate with females while the more colorful red males were wooing them. Females are promiscuous and will mate with multiple males. Additionally, immaculatas have developed larger testes, which produce more sperm, providing a post-mating advantage in the race to fertilize female eggs.

Finally, in a study published earlier this year in the Journal of Evolutionary Biology, produced by the European Society for Evolutionary Biology, Hurtado-Gonzales found that a common predator of Poecilia parae prefers to dine on reds and yellows, most likely because their striking colors make them easier to see. This predatory disadvantage contributes to the lower numbers of reds and yellows in the overall population.

"It seems that within an evolutionary scale, the less attractive males persist in the population ove
'/>"/>

Contact: Sara Miller
semortim@syr.edu
315-443-9038
Syracuse University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. CSHL scientists show in unprecedented detail how cortical nerve cells form synapses with neighbors
2. Damon Runyon Cancer Research Foundation awards breakthrough scientists
3. UCSB scientists demonstrate biomagnification of nanomaterials in simple food chain
4. Scientists and physicians use genetic sequencing to identify and treat unknown disease
5. Scientists decipher 3 billion-year-old genomic fossils
6. Scripps Research scientists show prions mutate and adapt to host environment
7. Scientists discover powerful biomarker panel for the early detection of breast cancer
8. Scientists identify the largest network of protein interactions related to Alzheimers disease
9. Polar bears: On thin ice? Extinction can be averted, scientists say
10. Scripps scientists see the light in bizarre bioluminescent snail
11. CSHL scientists identify elusive neuronal targets of deep brain stimulation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... Strict laws against distracted driving and the ... American and European automotive sector towards gesture recognition technologies. ... that are intuitive and able to retrieve information with ... New analysis from Frost & Sullivan,s Strategic ... Europe and North America ...
(Date:11/21/2014)... SAN JOSE, Calif. , Nov. 20, 2014 /PRNewswire/ ... a global leader in microcontroller (MCU) and touch technology ... digital temperature sensors with the widest V ... family delivers higher temperature accuracy and faster I 2 ... nonvolatile registers and serial EEPROM memory making them ideal ...
(Date:11/18/2014)... 17, 2014   News Highlights: ... to develop The Partners Data Lake, an agile ... Data Lake will allow researcher and clinicians to ... and the lives of patients , The ... activities across the Partners system, breaking down physical ...
Breaking Biology News(10 mins):Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5
... CSIRO researchers, in collaboration with the International Maize ... the research illustrates the major genetic improvements possible ... often use wild relatives of wheat as sources ... research team leader Dr Phil Larkin says. ...
... Growth hormone treatments work better on some children than on ... in height is no simple task. Now researchers have developed ... growth hormone to treat children who are abnormally short for ... the online open access journal BMC Medical Informatics and Decision ...
... the University of Southern California (USC) suggest epigenetics, or the ... cause for male infertility. The study will be published in ... This is the first report based on our ... semen development, says Rebecca Sokol, M.D., MPH, professor of obstetrics ...
Cached Biology News:Building disease-beating wheat 2USC researchers explore genetic causes for male infertility 2
(Date:12/24/2014)... The report expects global cell isolation and expansion ... provides a carefully analyzed data about the vital drivers, ... , Full Copy of Report @ http://bit.ly/1yUxy0T ... cell expansion will keep witnessing growth at an impressive ... be driven by rapid technological advancements, government funding and ...
(Date:12/24/2014)... Dec. 23, 2014 Vermillion, Inc. (Nasdaq: ... gynecologic disease, announced today that investors including Oracle ... Fund LLC and several Vermillion directors have agreed ... of Vermillion,s common stock and warrants to purchase ... private placement.  Under the terms ...
(Date:12/24/2014)... -- Rock Creek Pharmaceuticals, Inc., (NASDAQ: RCPI ) ... Application (CTA) with the United Kingdom,s ... approval to initiate clinical trials for the continued development ... on the Company receiving CTA regulatory approval, the Company ... the safety, tolerability and dose escalation of Anatabine Citrate ...
(Date:12/22/2014)... , Dec. 22, 2014   ... a developer of pathogen-specific therapies for serious ... protecting the microbiome, today announced positive topline ... 1a clinical trial of SYN-004, the Company,s ... of Clostridium difficile (C. difficile) ...
Breaking Biology Technology:The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5
... free Importance of Mixing webinar will compare lab mixing and large ... Reinaldo M. Machado entitled "Fundamentals of Scale-up" and "iControl Mixing Guidelines". ... ... METTLER TOLEDO invites you to view a free on-demand webinar ...
... Cytopia Limited (ASX: CYT) announced that it will present ... at the forthcoming 100th Annual Meeting of the American ... David Segal, Principal Scientist at Cytopia, will be presenting ... Molecular Therapeutics 2 poster session on Tuesday, April ...
... China, April 15 /PRNewswire-Asia-FirstCall/ -- China Sky One,Medical, Inc. ... CSKI ), a,leading fully integrated pharmaceutical company producing ... announced that it will,conduct a conference call at 10:00 ... to discuss its fourth quarter and fiscal year 2008,financial ...
Cached Biology Technology:The Importance of Mixing: How to Compare Lab Scale Mixing with Full Scale Process Vessel Performance 2Cytopia Presentation on VDA CYT997 at AACR Conference 2China Sky One Medical, Inc. Announces Conference Call to Discuss Fourth Quarter and Fiscal Year 2008 Results 2
... Nonanoyl-N-methylglucamide White ... Can be readily removed by dialysis. ... Purity: ≥98% by HPLC. Absorbance ... 2 O. CMC 19 - ...
...
Mouse polyclonal antibody to TNPO2 - transportin 2 (importin 3, karyopherin beta 2b)...
... polyclonal to HDAC4 - ChIP Grade ... II mammalian histone deacetylases, which consists of ... is highly similar to the deacetylase domain ... shuttles between the nucleus and cytoplasm in ...
Biology Products: