Navigation Links
Complex sex life of goats could have implications for wildlife management
Date:12/14/2011

A new study of the mating habits of mountain goats reveals the vastly different strategies of males in different populations and could shed light on the unseen impacts of hunting.

A Durham University-led research team found that male chamois (a species of wild goat-antelope) adopt different strategies in different populations in order to succeed in the rut: some put a lot of energy in at a young age, while others wait until they are much older.

Researchers looking at neighbouring populations of chamois in Northern Italy found that males in one population delay their reproductive efforts until an older age when their size and experience allow them to dominate in the rut. They then put increasing effort into breeding until they die.

The study is the first to show clearly that this strategy of 'terminal investment', a pattern of higher reproductive effort in older age, is pursued by males in an animal population. The results, published in the journal PLoS One, show that reproductive strategies in animals are complex and can show surprising variation across neighbouring districts.

It's not clear why there is such variation but the way that these populations are managed through hunting could be a factor, according to the researchers. At present, 32 per cent of the hunting quota is made up of older males, even though these males make up only 23 per cent of the population.

If too many larger, older males are taken out of a population, younger males may be able to muscle in and start breeding. Years of rutting could exhaust these younger males, meaning that they are in poorer condition when they reach old age. If this reasoning is accurate, selectively hunting older males in populations such as this will have the effect of reducing the condition of older males in future.

This suggests that alternative hunting practices such as hunting males in proportion to their age distribution might be a better str
'/>"/>

Contact: Carl Stiansen
c.r.stiansen@durham.ac.uk
44-191-334-6075
Durham University
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Complex New Guidelines From Multiple Organizations Confuses Men About Prostate Cancer Screening
2. AFib Educator app and widget offers patient dialogue tool for complex cardiovascular disease
3. Complex Technologies Announces Partnership with 6fusion to Deliver Cloud Services
4. Complex Spinal Operations Soar Despite Drawbacks
5. U of T researchers crack splicing code, solve a mystery underlying biological complexity
6. Nurse/tech symposium at TCT 2010 will address complex issues in the cardiac cath lab
7. FemFlora Reformulated with New Complex of Probiotic Bacteria
8. Study sheds light on deadly GI disease in infants born with complex congenital heart disease
9. SUMO works with replication protein A complex to repair DNA
10. Targeted therapy triggers complex mechanism of resistance
11. Unlocking the secret of beauty: Scientists discover the complexities of attractive female bodies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/12/2014)... Wright & Schulte LLC, an experienced law firm ... Lawsuits (case #59776/2014), announces they have launched a new ... the popular hair dye, Just For Men, has caused some ... and other areas. In addition to detailing symptoms that are ... the advertisements being run by Wright & Schulte LLC will ...
(Date:7/12/2014)... Beach, FL (PRWEB) July 12, 2014 ... of high-quality peptides that are used solely in scientific ... honor two successful years in business, Maxim Peptide, which ... has just launched a new and updated website that ... research blog section has been updated with fascinating articles ...
(Date:7/11/2014)... Recently, MagicQuinceaneraDresses.com, the popular online supplier of ... 2014 Quinceanera dresses . The company’s new items ... fashionable without paying a large amount of money. They ... off. , The company’s online shop has become a ... occasion outfits. In addition to exquisite Quinceanera dresses, it ...
(Date:7/11/2014)... 12, 2014 According to new ... market is expected to register a CAGR of ... Browse 71 market data tables and 76 figures ... "C4ISR Market"., http://www.marketsandmarkets.com/Market-Reports/c4isr-market-1315.html , Early buyers ... http://www.marketsandmarkets.com/requestCustomization.asp?id=1315 , The report provides market analysis ...
(Date:7/11/2014)... (PRWEB) July 11, 2014 Butler Mobility has ... Inclined Platform Lifts . Previously the two standard ... five new beautiful earth tone colors as standard colors at ... well in the home but will enhance the beauty of ... for any home color scheme or individual décor. , The ...
Breaking Medicine News(10 mins):Health News:Just for Men Lawsuit News: TV Campaign Launched by Wright & Schulte LLC to Inform Consumers of the Alleged Association between the Popular Hair Dye and Chemical Burns 2Health News:Just for Men Lawsuit News: TV Campaign Launched by Wright & Schulte LLC to Inform Consumers of the Alleged Association between the Popular Hair Dye and Chemical Burns 3Health News:Just for Men Lawsuit News: TV Campaign Launched by Wright & Schulte LLC to Inform Consumers of the Alleged Association between the Popular Hair Dye and Chemical Burns 4Health News:Maxim Peptide Celebrates Second Anniversary Online with an Updated Website and Special Deals Section 2Health News:Cheap Quinceanera Dresses Now Available At MagicQuinceaneraDresses.com 2Health News:C4ISR Market Estimated to Reach $93.04 Billion by 2019 - New Report by MarketsandMarkets 2Health News:C4ISR Market Estimated to Reach $93.04 Billion by 2019 - New Report by MarketsandMarkets 3Health News:C4ISR Market Estimated to Reach $93.04 Billion by 2019 - New Report by MarketsandMarkets 4Health News:Butler Mobility Products Announces Five New Standard Colors for Their Inclined Platform Lifts 2
... commonly prescribed cholesterol-lowering drug ezetimibe (Zetia) is so potent. ... University School of Medicine, is reported online today by ... the July 2 print issue. ,It had ... cells in the intestine from absorbing cholesterol. The new ...
... Louis researchers have identified common DNA variations that ... of the eight genetic alterations the scientists identified ... vaccination. A few, however, reduced fever risk. ... same genetic variations linked to fever following smallpox ...
... to scientist at annual conference of the European Society ... abnormal can undergo chromosomal modifications. , ... Maternity Hospital, Tel Aviv Sourasky Medical Centre, Tel Aviv, ... meant that the results of preimplantation genetic screening (PGS) ...
... For many decades, medical research studies focused primarily on ... applied to women. But we now know that the ... women are more than skin deep. Beginning in 1990, ... based advocacy organization, conveyed to a national audience the ...
... and their friends filled the area in and around the ... 14th annual Komen Puget Sound Race for the Cure . ... cancer, while many others were running to honor family members ... in the pink T-shirts and sporting the medallions awarded by ...
... much as $2.7 billion a year, according to the Access ... of Crohn's disease and ulcerative colitis. Crohn's disease is a ... ulcerations (breaks in the lining) of the small and large ... mouth to the anus. It is named after the physician ...
Cached Medicine News:Health News:Animal Research Uncovers Another Mechanism of Cholesterol Lowering Drug 2Health News:Genetic Variations Leads to Fever After Smallpox Vaccination 2Health News:Genetic Variations Leads to Fever After Smallpox Vaccination 3Health News:Preimplanted Genetic Screening Should Be Interpreted With Caution 2Health News:Rare Womens Lung Disease May Yield Insights Into Common Diseases 2Health News:Annual Cancer Run Draws Huge Response in US 2Health News:Inflamed Intestines Cost Australians Heavily 2
(Date:7/10/2014)... 2014   Ventana Medical Systems, Inc.  (Ventana), a ... entered into an agreement with Merck KGaA, Darmstadt, ... in the United States and ... KGaA,s biopharmaceutical division on the development and commercialization of ... Ventana,s proprietary diagnostic assays. In alignment with Merck KGaA,s ...
(Date:1/15/2014)... Sono-Tek Corporation (OTC BB: SOTK) today announced sales of  ... to sales of $2,202,000 for the prior year period, an ... also shown growth over the preceding quarter,s sales, continuing a ... year. Markets that experienced sales increases over the prior year ...
(Date:1/15/2014)... Foundation today announced it has established a relief fund ... weather that has gripped much of the nation. AARP and ... to support these emergency relief efforts AARP and AARP Foundation ... up to $500,000 in aid. The matching program will be ...
Breaking Medicine Technology:Ventana Medical Systems, Inc. and Merck KGaA, Darmstadt, Germany to develop companion diagnostic test for cancer treatment 2Ventana Medical Systems, Inc. and Merck KGaA, Darmstadt, Germany to develop companion diagnostic test for cancer treatment 3Sono-Tek Announces Third Quarter Results 2Sono-Tek Announces Third Quarter Results 3Sono-Tek Announces Third Quarter Results 4AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 2AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 3
The FastPack system is a state of the art, lab quality immunoassay system designed for rapid results. The FastPack system delivers lab-quality sensitivity at a fraction of the cost of laboratory....
... When you need quick, accurate, convenient, and ... compact VITROS DT60 II Chemistry System. This ... and back-up laboratory testing requirements. And it ... -- better patient outcomes, reduced overall costs, ...
... In an effort to improve on ... hormones, toxicology, abused drugs, and immunosuppressants ... 1991 which incorporates random access capabilities. ... has undergone several important changes in ...
AxSYM Plus provides cutting-edge ergonomics and smart new features that mean increased ease-of-use and enhanced reliability. Also, advanced software means less operator intervention and high-integrit...
Medicine Products: