Navigation Links
Mom was right: Nice guys don't always finish last
Date:11/5/2009

BINGHAMTON, NY -- Picture it: One jerk in a bar spends the night delivering bad come-ons to women. By the end of the evening, the women aren't receptive to even the nicest guys around.

It's a scenario with a basis in evolutionary theory. Males increase their fitness by acquiring more mates; however, this is often not the case for females and therein lies the conflict.

Researchers at Binghamton University and the University of Arizona studied sexual conflict in water striders, an insect that's a common model system. They found that, given a choice, females will group themselves around the gentlemen.

The results of the groundbreaking experiment in which the insects had a freedom of movement not possible in most studies of sexual conflict appear in the Nov. 6 edition of the prestigious journal Science.

"The original title of the paper was 'Nice Guys Don't Always Finish Last,'" lead author Omar Tonsi Eldakar said. "I find that statement to be quite descriptive of the project."

Previous studies of sexual conflict generally have limited individual movement, emphasizing local competition, noted Eldakar, a 2008 PhD graduate of Binghamton University and a post-doctoral fellow with the Center for Insect Science at the University of Arizona.

Eldakar said he perceives sexual conflict as an example of the "tragedy of the commons," a situation in which the most exploitive strategy benefits the individual at the expense of the group. (The classic example is of a shepherd who adds another animal to his herd even though the shared pasture is overgrazed.) Few researchers have framed sexual conflict in these terms; however, Eldakar sees a parallel between that shared pasture and the availability of females.

"When you pit exploitation against prudence in direct competition over a shared resource, you're putting them into a scenario that favors the short-term, exploitative strategy, making it difficult to observe the advantage of prudence," he said. "This does not accurately reflect what occurs in natural populations. But given a choice, females look for a way to get away from persistent males. If you allow individuals to self-organize, females find these nice guys and group around them, changing the landscape of competition."

Eldakar and his colleagues have shown through previous studies that groups in which a more gentlemanly approach to mating prevails do better on the whole, even though jerks generally outperform the nice guys when they have to compete one-on-one.

Eldakar thought of the insects as "nice guys" vs. "jerks;" his adviser, David Sloan Wilson, a co-author of the paper and a distinguished professor of biological sciences at Binghamton, termed them "gentlemen" vs. "psychopaths."

"The presence of psychopaths dramatically reduced the productivity of the population," Wilson said. "When all the males were gentlemen, the females laid about three times more eggs than they did when all the males were psychopaths. And yet within each group the psychopaths were doing better than the gentlemen. How do the gentlemen persist if they're disadvantaged within the group?"

Once the females could move between groups, the researchers had their answer. Eldakar and Michael J. Dlugos, then also a Binghamton graduate student, devised a wading pool equipped with special doors that could restrict movement between groups or allow the insects to move freely.

"When they opened the doors, the females would leave whenever a psychopath came around," Wilson said. "The whole thing resulted in a heterogeneity in which the females were clustered with the gentlemen. It's the movement of individuals that creates these differences between groups that favor nonaggressive males."


'/>"/>

Contact: Gail Glover
gglover@binghamton.edu
607-777-2174
Binghamton University
Source:Eurekalert

Related medicine news :

1. Scientific Journal Gene Therapy Reports That Cardiums Gene Activated Matrix Technology Accelerates Periodontal Tissue Regeneration
2. Florida Gentle Dental Dentists Giving Away Smile Makeover and Orthodontic Braces at 7th Annual Our Kids World Family Fun Festival
3. Patients with moderate to severe periodontitis need evaluation for heart disease risk
4. Top Dentist Issues Opinion on Health Benefits of Cutting-Edge Orthodontics
5. Over half of people with rheumatoid arthritis have periodontitis
6. Journal of Periodontology and the American Journal of Cardiology develop joint clinical recommendations
7. Scientists find shared genetic link between the dental disease periodontitis and heart attack
8. New Jersey Orthodontist Patrick T. Cuozzo Launches User-Friendly, State-of-the-Art New Website
9. The American Academy of Periodontology issues statement on periodontal treatment during pregnancy
10. Dental Implants Effective for Orthodontic Treatment
11. Dr. Ron Greenspan has Been Selected for the 2008 Best of San Diego Award in the Orthodontists Category by the U.S. Local Business Association
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/24/2017)... ... 24, 2017 , ... Healthcare Associates of McKinney announced today that ... at 8080 State Highway 121, Suite 210, McKinney, Texas 75070. It is in ... , As the practice has grown, the need for more space has been paramount. ...
(Date:2/24/2017)... ... February 24, 2017 , ... The International Association of Eating Disorders Professionals ... What You See” body image mannequin art competition. Selected from 15 submissions from around ... winner revealed at the 31st annual iaedp Symposium, March 22 – 26 in Las ...
(Date:2/24/2017)... Charlevoix, MI (PRWEB) , ... February 24, 2017 ... ... venue in Charlevoix, once again hosted their Military Wedding Giveaway, with the ... be hosted by Castle Farms with services generously donated from local vendors: A ...
(Date:2/23/2017)... ... February 23, 2017 , ... Rare ... audience, will be participating in Rare Disease Day events, hosted by the Rare ... Rare Disease Report, a website, weekly e-newsletter and quarterly publication, will be conducting ...
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... ... an approved content provider for the National Institute for Health and Care ... social care-related organizations in the National Health Service (NHS) to search, order and ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... , Feb 23, 2017 Research and Markets ... Price Analysis and Strategies - 2016" report to their offering. ... The latest ... provides drug pricing data and benchmarks in the global Autism Spectrum ... What are the key drugs marketed for Autism ...
(Date:2/23/2017)... ITL Limited, ( ASX: ITD ), an innovative diversified ... year ended 31 December 2016 compared with the previous corresponding period. ... viewed here . Highlights ... Earnings per share of 2.2 cents (Dec 2015: ... 2015: $15.7m; up 11%) Profit before tax of ...
(Date:2/23/2017)... -- Research and Markets has announced the addition of ... report to their offering. ... The latest research Oesophageal Cancer Drugs Price Analysis ... the global Oesophageal Cancer market. The research answers the ... drugs marketed for Oesophageal Cancer and their clinical attributes? How are ...
Breaking Medicine Technology: