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:9/16/2014)... September 16, 2014 Advanced Fertility Center ... named by Houstonia Magazine as one of the Top ... Houstonia Magazine - a metropolitan magazine serving the Houston ... and recognize them for their outstanding services. This accomplishment ... edition of Houstonia Magazine — a special publication listing ...
(Date:9/16/2014)... These new programs allow those who haven’t owned a ... $10,000 in a 0% interest free, 2nd down payment assistance ... federal programs, are listed on their private website. The $10,000 ... or move out of the property. The down payment assistance ... no monthly payments paid by the Borrower. The money is ...
(Date:9/16/2014)... Aspen Advisors, a U.S.-based healthcare IT ... for its high morale and collaborative culture ... Firms to Work For 2014.” Consulting magazine publishes ... 10,000 consultants participating across all major industries, representing more ... conducted, and firms were ranked in six categories - ...
(Date:9/16/2014)... 14, 2014 A new clinical trial ... and drug-eluting balloons (DEB) in treating in-stent ... EES provided superior late angiographic results and ... were reported today at the 26th annual ... by the Cardiovascular Research Foundation (CRF), TCT ...
(Date:9/16/2014)... Ensuring that corn absorbs the right balance of nitrogen, ... a Purdue and Kansas State University study finds. , ... from the U.S. and other regions showed that high ... plants took up key nutrients at specific ratios - ... nitrogen and potassium at a ratio of 1-to-1. These ...
Breaking Medicine News(10 mins):Health News:Dr. Michael Allon Receives Esteemed Recognition 2Health News:New Updated 2014 First Time Home Buyer Programs Available to Florida Residents 2Health News:New Updated 2014 First Time Home Buyer Programs Available to Florida Residents 3Health News:Aspen Advisors Earns Recognition in Consulting Magazine’s "Best Small Firms to Work For" 2Health News:Aspen Advisors Earns Recognition in Consulting Magazine’s "Best Small Firms to Work For" 3Health News:Results of RIBS IV trial reported at TCT 2014 2Health News:Boosting global corn yields depends on improving nutrient balance 2Health News:Boosting global corn yields depends on improving nutrient balance 3
... Optical technology is as accurate as colorectal tissue examination, ... Optical technology could help physicians detect small colorectal polyps ... , In the report, published online Nov. 10 in ... that the technique could replace histopathology, which requires more ...
... cancer has eliminated tumours in 50% of mice in a new ... the animals, the drug also stopped lung cancer tumours from growing ... Imperial College London, are now planning to take the drug into ... with an inoperable form of lung cancer. One in five ...
... 10 Reportlinker.com announces that a new ... catalogue. , Central Nervous System ... http://www.reportlinker.com/p0161866/Central-Nervous-System-Insomnia-or-Sleep-Disorders.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=prnewswire , Life ... Sleep Disorders contains detailed information on the ...
... Hospital Dallas is the first hospital in Dallas and one ... Cycle III Chest Pain Center by the Society of Chest ... , "This honor means that Texas Health Presbyterian Dallas ranks ... collaborative treatment of heart attacks," said cardiologist Dr. John Harper, ...
... estimates 2,266 U.S. military veterans under the age of 65 died ... access to care. That figure is more than 14 times the ... 2008, and more than twice as many as have died (911 ... The researchers, who released their analysis today, pointedly say the health ...
... But researchers not exactly sure how pathogens raise risk of ... to several common pathogens may increase the risk of having ... Mitchell Elkind, an associate professor of neurology at Columbia University ... that the pathogens Chlamydia pneumoniae , Helicobacter pylori ...
Cached Medicine News:Health News:New Polyp Detection Method Could Be Cost-Saver 2Health News:Drug shrinks lung cancer tumors in mice 2Health News:Drug shrinks lung cancer tumors in mice 3Health News:Reportlinker Adds Central Nervous System Insomnia or Sleep Disorders 2Health News:Reportlinker Adds Central Nervous System Insomnia or Sleep Disorders 3Health News:Texas Health Dallas Receives Prestigious Chest Pain Accreditation 2Health News:Over 2,200 veterans died in 2008 due to lack of health insurance 2Health News:Common Infections May Contribute to Strokes 2Health News:Common Infections May Contribute to Strokes 3
(Date:9/16/2014)... -- Research and Markets has announced ... Industry Report 2014" report to their offering. ... Report 2014 is a professional and in-depth study ... devices. The report provides a basic ... and industry chain structure. The laparoscopic devices market ...
(Date:9/16/2014)... 2014 On September 25 to 26, 2014, ... medical design and manufacturing - MEDTEC China  - will ... Exhibition & Convention Center, bringing together close to 300 ... showcase their latest medical-grade raw materials, parts and processing ... remaining for free visitor pre-registration to be completed. To ...
(Date:9/16/2014)... -- Northwest Biotherapeutics (NASDAQ: NWBO ) ("NW ... for solid tumor cancers, announced today that its DCVax-L ... a "Promising Innovative Medicine" (PIM) under the new "Early ... in April 2014.  A PIM is the first step ... the EAMS.  The PIM designation for ...
Breaking Medicine Technology:Global Laparoscopy Devices Industry Report 2014 2MEDTEC China 2014: Seven Highlights Not to Miss! 2MEDTEC China 2014: Seven Highlights Not to Miss! 3MEDTEC China 2014: Seven Highlights Not to Miss! 4NW BIO'S CANCER VACCINE IS THE FIRST DRUG TO BE DESIGNATED BY UK AUTHORITIES AS A "PROMISING INNOVATIVE MEDICINE" (PIM) 2NW BIO'S CANCER VACCINE IS THE FIRST DRUG TO BE DESIGNATED BY UK AUTHORITIES AS A "PROMISING INNOVATIVE MEDICINE" (PIM) 3NW BIO'S CANCER VACCINE IS THE FIRST DRUG TO BE DESIGNATED BY UK AUTHORITIES AS A "PROMISING INNOVATIVE MEDICINE" (PIM) 4NW BIO'S CANCER VACCINE IS THE FIRST DRUG TO BE DESIGNATED BY UK AUTHORITIES AS A "PROMISING INNOVATIVE MEDICINE" (PIM) 5
... YORK, Sept. 22, 2011 Reportlinker.com ... report is available in its catalogue: ... Contract Pharmaceutical Manufacturing, Research And Packaging: ... http://www.reportlinker.com/p0619263/Global-Markets-for-Contract-Pharmaceutical-Manufacturing-Research-And-Packaging-Focus-on-Emerging-Markets.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Manufacturing ...
... announces that a new market research report is ... Drugs: The Global Market--Focus on Asia ... REPORT CONTAINS * An examination ... generics to meet the challenges of this highly ...
Cached Medicine Technology:Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 2Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 3Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 4Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 5Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 6Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 7Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 8Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 9Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 10Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 11Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 12Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 13Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 14Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 15Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 16Global Markets for Contract Pharmaceutical Manufacturing, Research And Packaging: Focus on Emerging Markets 17Generic Drugs: The Global Market--Focus on Asia 2Generic Drugs: The Global Market--Focus on Asia 3Generic Drugs: The Global Market--Focus on Asia 4Generic Drugs: The Global Market--Focus on Asia 5Generic Drugs: The Global Market--Focus on Asia 6Generic Drugs: The Global Market--Focus on Asia 7Generic Drugs: The Global Market--Focus on Asia 8Generic Drugs: The Global Market--Focus on Asia 9
Clinical micro clamps by Acland. Matte finish. It provides impressive security in use, both against slippage and against leakage due to controlled closing force and working grip surface....
Micro emulsifying needles, 18G....
Micro 2000, micro scissors micro 2000 supercut....
Yasargil clip applying forceps Mini. Stainless steel jaw....
Medicine Products: