Navigation Links
Female fish flaunt fins to attract a mate
Date:10/7/2010

For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research, published in the open access journal BMC Evolutionary Biology, shows that male cichlid fish prefer females with a larger pelvic fin and that this drives females to grow fins out of proportion with their body size.

Sebastian Baldauf from the University of Bonn, Germany, worked with a team of researchers to study the effects of female ornamentation in the African cichlid fish Pelvicachromis taeniatus. He said, "In contrast to the well-known phenomenon of sexual selection influencing male traits, the expression of female ornaments in relation to body size is almost completely unexplored".

Female P. taeniatus develop exceedingly large pelvic fins, which differ from male fins in shape and color. During courtship, females fan out their violet pelvic fin, suggesting that the fin is actively used during mate choice. The researchers found that males clearly preferred females with a larger pelvic fin and that pelvic fins grew in a more disproportionate way than other fins on female fish. According to Baldauf, "Our study is, to our knowledge, the first to show that male choice might scale the proportions of a female sexual trait, and therefore has implications for the understanding of the relationship of female traits with body size".


'/>"/>

Contact: Graeme Baldwin
graeme.baldwin@biomedcentral.com
44-020-319-22165
BioMed Central
Source:Eurekalert  

Page: 1

Related biology news :

1. Female marine snails trick amorous males
2. Rice sociologist finds male scientists regret parenthood decisions more than female counterparts
3. Male antelopes trick females into extra sex opportunities
4. Male antelopes deceive females to increase their chances of mating
5. Male or female? In flies, some cells cant tell
6. Hormonal contraceptives associated with higher risk of female sexual dysfunction
7. Females shut down male-male sperm competition in leafcutter ants
8. Why female moths are big and beautiful
9. Pesticide atrazine can turn male frogs into females
10. First discovery of the female sex hormone progesterone in a plant
11. Study shows male erectile dysfunction drug enhances fetal growth in female sheep
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Female fish flaunt fins to attract a mate
(Date:12/22/2016)... 20, 2016  As part of its longstanding mission to ... genetics company, recently released its latest children,s book, titled ... focuses on the topics of inheritance and variation of traits ... taught in elementary school classrooms in the US. ... illustrator Ariana Killoran , whose previous book with 23andMe, ...
(Date:12/16/2016)... 2016   IdentyTechSolutions America LLC , a ... solutions and a cutting-edge manufacturer of software and ... offering seamless, integrated solutions that comprise IDT biometric ... solutions provide IdentyTech,s customers with combined physical identification ... crime and theft. "We are proud ...
(Date:12/15/2016)... 2016 ... Research and Markets has announced the addition of the ... The report forecasts the global military biometrics market to grow at ... report has been prepared based on an in-depth market analysis with inputs ... prospects over the coming years. The report also includes a discussion of ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... (PRWEB) , ... January 18, 2017 , ... ... for tech innovators, engineers, and scientists from around the world, was today awarded ... The awards program is based entirely on merit and decided upon by a ...
(Date:1/19/2017)... 18, 2017 Acupath Laboratories, Inc., a leading ... of an Executive Committee that will guide the company,s ... John Cucci , a 15-year veteran of the ... Business Development to Chief Sales Officer .  Prior ... in senior sales leadership roles at several leading lab ...
(Date:1/18/2017)... 2017 Applied BioMath ( www.appliedbiomath.com ), ... research and development, today announced that Dr. ... of Applied BioMath, will present at the next ... Meeting on Thursday January 19, 2017 at the ... MA.   Dr. Burke,s talk "Quantitative Modeling and Simulation ...
(Date:1/18/2017)... , ... January 18, 2017 , ... ... federally funded bio-focused Manufacturing Innovation Institutes (MII). U.S. Secretary of Commerce Penny Pritzker ... Biopharmaceuticals (NIIMBL), and the Department of Defense has announced the award of a ...
Breaking Biology Technology: