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:12/15/2014)... DUBLIN , Dec. 12, 2014 Research ... announced the addition of the "Global Facial ... http://photos.prnewswire.com/prnh/20130307/600769 ... the identification of individuals. Facial recognition system measures ... as nose, jaw edges, mouth, and the distance ...
(Date:12/11/2014)... PAUL, Minn. , Dec. 10, 2014 /PRNewswire/ ... wireless physiologic monitoring, has released a new series ... needs of preclinical toxicology researchers. M series, part ... help toxicologists collect the best possible physiologic data ... Adding functional endpoints to toxicology studies ...
(Date:12/10/2014)... SAN DIEGO , Dec. 9, 2014 ... and collaboration catalyst that provides the connective tissue that ... by enabling them to easily share client-level information; earned ... Foundation to expand to organizations serving seniors aging in ... San Diego" partner on December 11 th 4-6p. ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3New telemetry implants expected to change how large animal toxicology studies are conducted 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
... disease typhoid fever results from the ongoing battle between the ... the body. Prof. Dirk Bumann,s research group at the Biozentrum ... typhoid pathogen repeatedly manages to evade the host,s immune system. ... Host & Microbe ". Typhoid fever is a bacterial ...
... natural gas pipelines have been found under the streets of ... Boston University. A dozen of the leaks could have ... concentrations as high as 500,000 parts per million of natural ... which explosions can occur. Four months after phoning ...
... from the University of Toronto (U of T) have found ... an individual,s nutritional needs vary by blood type--is not valid. ... . , "Based on the data of 1,455 ... diet theory," said the senior author of the study, Dr. ...
Cached Biology News:Typhoid fever -- A race against time 25,900 natural gas leaks discovered under Washington, D.C. 25,900 natural gas leaks discovered under Washington, D.C. 3Popular blood type diet debunked 2
(Date:12/24/2014)... PharmaBoardroom,s new report, , Healthcare and ... free download , digs deep into this vibrant market, ... sector today. One area where Algeria ... a homegrown pharmaceutical manufacturing base, even if the government,s ambitious ... off. A cursory comparison with neighboring Morocco ...
(Date:12/22/2014)... 22, 2014 The Center for ... of technical training across the life sciences industry, has ... (SCDM) to provide the organization's members with discounted ... access to the more than 350 sessions across 80 ... 10% off when registering for a public course ...
(Date:12/22/2014)... DIEGO , Dec. 22, 2014 GenomeDx ... the Decipher Prostate Cancer Classifier, a genomic test for ... in node-negative, high-risk men managed by radical prostatectomy without ... radical prostatectomy is relatively uncommon, using tumor genomics to ... of metastatic disease is an important advance. The study ...
(Date:12/22/2014)... Fertility Associates of Memphis has announced a ... a network of more than 20 contributing fertility ... fast access to a national pool of frozen ... Associates of Memphis is the only fertility clinic in ... Dr. William Kutteh , director of Fertility Associates ...
Breaking Biology Technology:PharmaBoardroom Releases New Algeria Pharmaceuticals Report 2PharmaBoardroom Releases New Algeria Pharmaceuticals Report 3CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 2Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 3Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3
... Alfacell Corporation,(Nasdaq: ACEL ) today announced that ... 29, 2008 notifying the Company that its,securities will ... June 25,2008, NASDAQ notified the Company that the ... the minimum $35 million required for continued,inclusion on ...
... FALLS, N.J., Aug. 1 CANTEL MEDICAL,CORP. (NYSE: ... Crosstex,International, Inc. subsidiary, effective today. As planned, Richard ... retired effective today,after over 50 years with Crosstex, ... Gary Steinberg and Mitchell Steinberg, also,former owners of ...
... and ... Diagnostic System, ... announced it has entered into a non-binding letter of,intent to ... real-time wireless beat-to-beat, intelligent heart monitor and,diagnostic system, designed for ...
Cached Biology Technology:Alfacell Receives NASDAQ Delisting Letter 2Alfacell Receives NASDAQ Delisting Letter 3Cantel Medical Announces Management Succession at Crosstex Healthcare Disposables Subsidiary 2Bioheart, Inc., Announces Letter of Intent to Acquire MEDICALGORITHMICS, Ltd. 2Bioheart, Inc., Announces Letter of Intent to Acquire MEDICALGORITHMICS, Ltd. 3Bioheart, Inc., Announces Letter of Intent to Acquire MEDICALGORITHMICS, Ltd. 4Bioheart, Inc., Announces Letter of Intent to Acquire MEDICALGORITHMICS, Ltd. 5
Mouse monoclonal [34B12] to Nop5p + Nop58p - Nucleolar Marker ( Abpromise for all tested applications)....
... the ultimate tool for investigating dynamic events ... previously have been limited at wavelengths longer ... not transmit in the deep UV. HORIBA ... introduces a filter-based confocal system (the DynaMic) ...
... bind specifically to Fc regions of many ... conjugates are commonly used as affinity adsorbents ... from serum, hybridoma ascites fluids, tissue culture ... are also commonly used to capture immune ...
... This quick (10 min) assay can ... non-fluorescent substrate, 10-acetyl-3,7-dihydroxyphenoxazine (ADHP). H2O2 oxidizes ADHP ... fluorescent product resorufin (excitation at 530-571 nm, ... catalyzed by peroxidase in a one-step, homogeneous, ...
Biology Products: