Navigation Links
Are female mountain goats sexually conflicted over size of mate?
Date:11/17/2009

Mountain goats are no exception to the general rule among mammals that larger males sire more and healthier offspring. But University of Alberta researcher David Coltman has found a genetic quirk that might make female mountain goats think twice about their romantic partners.

Big, heavy males mountain goats shove lightweight Romeos aside taking the eligible females for themselves. The larger males pass their physical attributes and mating success to their male heirs. But Coltman's data shows the daughters of the big, bruisers are routinely smaller and less fit than females produced by physically more modest fathers. Nature can be cruel and life on the side of a mountain favours bigger, healthier animals, both male and female.

Coltman's research shows that this anomaly could have implications for female mate choice, since a female that mates with a large, dominant male can expect to have larger sons, but smaller and less fit daughters. The research also poses the question of why female offspring sired by the dominant male would be compromised. Another question the study raises is; what if any consideration does the size of their daughters have for would-be mothers? Could this be a factor weighed by a sexually mature female when courted by males that come in a variety of sizes?


'/>"/>

Contact: Brian Murphy
brian.murphy@ualberta.ca
780-492-6041
University of Alberta
Source:Eurekalert

Page: 1

Related biology news :

1. Female choice benefits mothers more than offspring
2. Pesky fruit flies learn from experienced females: Study
3. New theory on why male, female lemurs same size
4. Female human embryos adjust the balance of X chromosomes before implantation
5. Hidden genitalia in female water striders makes males sing
6. Genital stimulation opens door for cryptic female choice in tsetse flies
7. Sexual harassment from males prevents female bonding, says study
8. Remembrance of things past influences how female field crickets select mates
9. Caffeine appears to be beneficial in males -- but not females -- with Lou Gehrigs disease
10. Caffeine appears to be beneficial in males -- but not females -- with Lou Gehrigs disease
11. Female mammals follow their noses to the right mates
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... , Dec. 1, 2016   SoftServe ... announced BioLock , an electrocardiogram (ECG) biosensor ... monitoring, a key IoT asset. The smart system ... a vehicle,s steering wheel and mobile devices to ... touch. As vehicle technology advances, so ...
(Date:11/29/2016)... , Nov. 29, 2016 BioDirection, a ... point-of-care products for the objective detection of concussion and ... company has successfully completed a meeting with the U.S. ... Tbit™ blood test Pre-Submission Package. During the meeting company ... system as a precursor to commencement of a planned ...
(Date:11/28/2016)... "The biometric system market ... The biometric system market is in the growth stage ... future. The biometric system market is expected to be ... CAGR of 16.79% between 2016 and 2022. Government initiative ... in smartphones, rising use of biometric technology in financial ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... 5, 2016  Eisai Inc. announced today final ... of rufinamide, which were presented at the 2016 ... held from December 2-6 in Houston, ... tolerability and cognitive data showed that patients who ... and tolerability profiles, cognitive development and behavior, compared ...
(Date:12/4/2016)... ... 02, 2016 , ... A proposed five-year extension for programs ... research and development is welcome news for the photonics community, say leaders of ... part of the National Defense Authorization Act (NDAA) compromise agreement finalized today between ...
(Date:12/4/2016)... CAMBRIDGE, Mass. and ... 4, 2016 SystemOne, a company focused ... platforms for the developing world, and Daktari Diagnostics, ... reality with its portable and ultrasensitive immunoassay-based CarePlatform™, ... development and license agreement to integrate Daktari,s technology ...
(Date:12/2/2016)... NORWALK, Conn. , Dec. 2, 2016  The ... research presentations from the MMRF CoMMpass Study SM —the ... and accelerating precision medicine in multiple myeloma—will be presented ... (ASH) Annual Meeting & Exposition in San ... are helping to optimize treatment strategies, as well as ...
Breaking Biology Technology: