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:1/19/2017)... PUNE, India , January 19, 2017 According to ... Market, Opportunities and Forecast, 2014 - 2022," the global biometric sensor market is ... from 2016 to 2022. In 2015, Asia-Pacific dominated the ... public and private sectors. Continue Reading ... ...
(Date:1/18/2017)... Md. , Jan. 18, 2017  In vitro ... respect to mergers and acquisitions (M&A), and Kalorama Information ... for such acquisitions have been shifting. Generally, uncertainty in ... and the U.S. has changed the acquisitions landscape. ... has resulted in companies buying partners outside of their ...
(Date:1/13/2017)... 13, 2017 Sandata Technologies, LLC, a ... homecare industry, including Electronic Visit Verification™ (EVV™), announced ... Jugs, as Senior Vice President of Product Management. ... of homecare experience to Sandata, where he will ... to align Sandata,s suite of solutions with the ...
Breaking Biology News(10 mins):
(Date:1/21/2017)... Colo. , Jan. 20, 2017 ... or the "Company"), announced that on January 14, 2017 ... plan under which the Company will terminate certain employees ... Bioptix Diagnostics, Inc.  The Company commenced terminations on January ... within 30 days.  The Company may pay severance benefits ...
(Date:1/21/2017)... , Jan. 21, 2017   Boston Biomedical , ... designed to target cancer stemness pathways, today presented data ... napabucasin, at the 2017 American Society of Clinical Oncology ... . In a Phase Ib/II ... designed to inhibit cancer stemness pathways by targeting STAT3 ...
(Date:1/20/2017)... , January 20, 2017 Stock-Callers.com ... conditions have influenced the most recent performances of select ... (NASDAQ: RGLS ), Abeona Therapeutics Inc. (NASDAQ: ... TBPH ), and Sage Therapeutics Inc. (NASDAQ: ... by Grand View Research, global Biotech market size is expected to ...
(Date:1/20/2017)... NEW YORK , January 20, 2017 ... Health Organization, cancer is one of leading causes of ... in 2012. Although the number of cancer related deaths ... since 1990. Rising in incidence rate of various cancers ... According to a research report by Global Market Insights, ...
Breaking Biology Technology: