Navigation Links
Sexually extravagant male birds age more rapidly, but try to hide it
Date:8/4/2011

For male houbara bustards sexual extravagance is the key to attracting mates in some of the world's harshest desert environments. However, new research in Ecology Letters reveals that males who perform the most extravagant sexual displays will suffer from premature biological aging and will pass their reproductive prime years earlier than their less ostentatious rivals.

Houbara bustards, Chlamydotis undulata, are found across the deserts of the Southern Hemisphere, from the Persian Gulf to the Gobi Desert, and for six months of the year the males spend their days in elaborate sexual displays aiming to charm passing females.

Research has demonstrated that the 'showiest' of these males produce the highest quality sperm when they mate.

However, new research reveals that this effort takes its toll. Extravagant males were found to pass their reproductive prime much sooner than their more subdued rivals and they began to produce 'burnt-out', smaller ejaculates, containing high numbers of dead and abnormal sperm.

"This is the bird equivalent of the posers who strut their stuff in bars and nightclubs every weekend," said lead author Dr Brian Preston from the University of Burgundy, France. "If the bustard is anything to go by, these same guys will be reaching for their toupees sooner than they'd like."

Dr Preston's team found that despite burning out, showy males continued their energetic sexual displays at near maximum levels.

"Male houbara bustards may help to explain how senescence, or biological aging, has evolved," concluded Preston. "Senescence is the deterioration that occurs with advancing age, yet the reason why an organism should senesce has been an evolutionary puzzle, as natural selection would be expected to 'weed-out' the genes responsible for these age-related declines."

"The bustard shows that an over-abundance of early reproductive effort comes at the cost of physiological
'/>"/>

Contact: Ben Norman
Lifesciencenews@wiley.com
44-012-437-70375
Wiley-Blackwell
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Are female mountain goats sexually conflicted over size of mate?
2. CSHL-Mexican team coaxes sexually reproducing plant to brink of asexual reproduction
3. UCI scientists decode genomes of sexually precocious fruit flies
4. A more definitive test for a common sexually transmitted infection
5. 19th Conference of the International Society for Sexually Transmitted Disease Research
6. Captain Birdseyes robotic nose
7. Beavers: Dam good for songbirds
8. Genetic evidence for avian influenza movement from Asia to North America via wild birds
9. Practice as well as sleep may help birds learn new songs
10. The birds of Spain, in a digital ornithological encyclopedia
11. Shade coffee benefits more than birds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sexually extravagant male birds age more rapidly, but try to hide it
(Date:12/3/2014)... 2, 2014   Marvin Test Solutions , ... solutions for military, aerospace, and manufacturing organizations, today ... successful TS-900 PXI semiconductor test platform . ... high-end systems to customers at a fraction of ... traditional ATE. "Our semiconductor customers ...
(Date:11/21/2014)... , Nov. 20, 2014 Strict laws against ... are piloting the North American and European automotive sector ... growing, gesture recognition systems that are intuitive and able ... in the industry. New analysis from ... Recognition Market in Europe and ...
(Date:11/18/2014)... Nov. 17, 2014   News ... collaborate to develop The Partners Data Lake, an ... Partners Data Lake will allow researcher and clinicians ... treatment and the lives of patients , ... clinical activities across the Partners system, breaking down ...
Breaking Biology News(10 mins):Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5
... , University of Iowa biologist Daniel Eberl and his colleagues have ... to the battery in your car. And if that isn,t ... by studying a similar auditory system in fruit fliesand by making ... the mechanism of hearing resembles a battery, you need to know ...
... -- The ability to focus and switch tasks readily ... following brain concussions suffered by high school athletes, according ... Research team members, in an interview, said the discovery ... than current practices dictate to lower the risk of ...
... Researchers have discovered a new compound that restores ... aureus (MRSA), an otherwise dangerous bacterial infection. The ... cells but which is essential to bacterial survival. ... of Illinois and the University of California, San Diego, ...
Cached Biology News:UI researcher learns mechanism of hearing is similar to car battery 2Cognitive deficits from concussions still present after 2 months 2Cognitive deficits from concussions still present after 2 months 3New compound overcomes drug-resistant Staph infection in mice 2New compound overcomes drug-resistant Staph infection in mice 3
(Date:12/19/2014)... ISN has released its third annual U.S. ... series. With data aggregated from over eight billion U.S. ... online contractor management platform, ISNetworld, this three-part series provides ... The Contractor Performance Benchmarking ... in two industry specific volumes: Oil & Gas, ...
(Date:12/17/2014)... Based on the revenues gained from surgical ... dominated by four major players contributing to approximately ... include GE Healthcare (U.K.), Siemens AG (Germany), Philips ... Report Copy at http://www.marketsandmarkets.com/Market-Reports/surgical-imaging-market-210534462.html , The ... to its strong product portfolio, which includes its ...
(Date:12/17/2014)... 2014 Ipsen Biopharmaceuticals, Inc., an ... IPSEY), today announced that Somatuline® Depot® ... was approved by the U.S. Food and Drug ... tumors (GEP-NETs) in adult patients with unresectable, well ... to improve progression-free survival (PFS). , “The approval ...
(Date:12/17/2014)... Xeno Diagnostics has again received ... recent COLA inspection. Xeno has met all criteria ... accreditation organization. Accreditation is earned only by laboratories ... operations, demonstrate continued accuracy in the performance of ... survey. , While the Laboratory Excellence ...
Breaking Biology Technology:ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 2Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 3Global Refurbished Surgical Imaging Market by Product & Application is Estimated to Reach $1.25 Billion by 2019 - New Research Report by MarketsandMarkets 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 8Xeno Diagnostics Receives 3rd Award for Laboratory Excellence 2
... (NYSE: TMO ) announced that it will host ... starting at 9:00 a.m. (EDT), at The,Grand Hyatt New ... City., The meeting will feature presentations by members ... an in-depth company,overview as well as expectations for future ...
... CITY, May 1 /PRNewswire-FirstCall/ - AEterna Zentaris Inc.,(NASDAQ: ... company focused on,endocrine therapy and oncology, will announce ... market open on Wednesday, May 7,2008. The Company ... discuss these,results later that same day at 4:00 ...
... Raffaele Hospital in Milan and Northeast Georgia Medical Center in ... Gainesville, ... ... ST. LOUIS, May 1 Stereotaxis, Inc. (Nasdaq:,STXS) announced today the first ever bi-directional ...
Cached Biology Technology:Thermo Fisher Scientific to Host Analyst Meeting 2Stereotaxis Highlights a Transatlantic Arrhythmia Procedure Collaboration With the Odyssey(TM) Network 2Stereotaxis Highlights a Transatlantic Arrhythmia Procedure Collaboration With the Odyssey(TM) Network 3Stereotaxis Highlights a Transatlantic Arrhythmia Procedure Collaboration With the Odyssey(TM) Network 4
... Processing mini Tray (3 per pack), ... staining and blot processing.Automated staining of ... proteins and nucleic acid analysis.Prepares blots ... chromogenic detection.Programmable control of protocol, solution, ...
... 1 g. High quality kits ... preparation that give consistent and ... and tissues.Clean up samples from ... Accurately quantitate protein for first-dimension ...
GOAT ANTI CARICA PAPAYA PAPAIN...
PAb to Hu-IFN-Alpha/Beta R2 [(IFNAR2) CD118], Rabbit Serum, neutralizing Binds to but does not neutralize human interferon alpha/beta receptor...
Biology Products: