Navigation Links
When it comes to female red squirrels, it seems any male will do
Date:6/20/2008

Researchers have found that female red squirrels showed high levels of multimale mating and would even mate with males that had similar genetic relatedness, basically mating with their relatives.

Researchers from the University of Alberta, in Edmonton, Alberta, Canada and the University of Sheffield in Sheffield, England, United Kingdom studied a population of red squirrels over a period of three years near Kluane National Park in southwest Yukon.

While males mating with multiple females is quite common in the animal kingdom, females that multi-mate is much harder to explain.

Through their observations, it was noted that when female red squirrels chose a mate to copulate with, genetic relatedness did not play a factor.

"In males, the benefits of multi-female mating are well established, but in females the benefits of having many offspring is limited, making the reasoning for multimale mating more puzzling," said Jeffrey Lane, who conducted the study while obtaining his PhD at the University of Alberta.

The researchers also found that the relatedness of parents had no effect on the neonatal mass and growth rate of their offspring. As well, whether or not an offspring survived to one year of age wasn't affected by having related parents either.

"Detailed investigations into the social and genetic context of multimale mating in red squirrels and other mammalian species should help to provide insight into the evolution and maintenance of this behavior," said Lane.


'/>"/>

Contact: Kris Connor
kris.connor@ualberta.ca
780-492-9214
University of Alberta
Source:Eurekalert

Page: 1

Related biology news :

1. Drug could improve pregnancy outcomes in wider range of women with insulin resistance
2. UNH becomes first university in nation to use landfill gas as primary energy source
3. When it comes fighting to C. difficile, the Palme dOr goes to soap and warm water
4. Scientists find how amber becomes death trap for watery creatures
5. Forests could benefit when fall color comes late
6. DFG welcomes decision on stem cell research by German parliament
7. Meteorology student SOARS toward excellence, overcomes obstacles
8. National Inventors Hall of Fame welcomes 2008 inductees
9. Mouse study: When it comes to living longer, its better to go hungry than go running
10. Sex is thirst-quenching for female beetles
11. UT Southwestern researchers identify hundreds of genes controlling female fertility
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/3/2016)... PUNE, India , February 3, 2016 ... to the new market research report "Automated Fingerprint Identification ... (Tenprint Search, Latent Search), Application (Banking & Finance, Government, ... 2020", published by MarketsandMarkets, the market is expected to ... estimated CAGR of 21.0% between 2015 and 2020. The ...
(Date:2/2/2016)... YORK , Feb. 2, 2016 /PRNewswire/ ... facilities are primarily focused on medical screening ... measure point-of-care parameters. Wearable devices that facilitate ... user,s freedom of movement are being bolstered ... for human biomedical signal acquisition coupled with ...
(Date:2/2/2016)... 2, 2016 Technology Enhancements Accelerate Growth of X-ray ... the digital and computed radiography markets in ... Indonesia (TIM). It provides an ... as well as regional market drivers and restraints. The ... penetration and market attractiveness, both for digital and computed ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... Feb. 11, 2016  Spectra BioPharma Selling Solutions (Spectra) ... provides biopharma companies the experience, expertise, operational delivery ... outsourced sales teams. Created in concert with industry ... the strategic and tactical needs of its clients ... through both personal and non-personal promotion. ...
(Date:2/11/2016)... 11, 2016 --> ... "Company") (OTCQB: PSID), a life sciences company focused ... Thermomedics subsidiary, which markets the Caregiver® FDA-cleared non-contact ... in January 2016, including entering into agreements with ... sales growth, and establishing several near-term pipeline opportunities. ...
(Date:2/11/2016)... ... February 11, 2016 , ... Global ... treatment clinic in Quito, Ecuador. The new facility will provide advanced protocols and ... from around the world. , The new GSCG clinic is headed by ...
(Date:2/10/2016)... -- NX Prenatal Inc., a US based molecular ... early warning of adverse pregnancy outcomes, announced today ... Dr. Thomas McElrath of Brigham & ... (SMFM) annual meeting held in Atlanta ... presentation reported initial positive top-line results regarding the ...
Breaking Biology Technology: