HOME >> BIOLOGY >> NEWS
West Nile takes its toll on rare bird

West Nile virus has become a widespread human health concern, yet little attention is given to the grave situation facing certain wildlife species dying from the deadly disease, says a University of Alberta scientist. Cameron Aldridge is part of a research team to have shown that the West Nile Virus represents a significant new stressor on the sage-grouse—a species already on the endangered list in Canada and under current consideration for federal listing in the United States.

"We don't yet know whether the sage-grouse are more at risk than other species but we do know that the West Nile virus could have devastating consequences for small populations," said Aldridge, a co-author on a research paper just published in "Ecology Letters."

Aldridge was part of a team that monitored radio-marked female sage-grouse from March 2003 to September 2004 in five sites in Alberta, Montana and Wyoming. They found that populations that had their first exposure to the virus in 2003, had a 25% decrease in late summer survival of females. West Nile virus was confirmed to have killed 18 individuals whose carcases could be relocated. Serum from 112 sage-grouse collected after the outbreak show that none had antibodies, suggesting that they lack resistance.

"When we tested individual sage grouse after the outbreak of the virus in 2003, we hoped we would find antibodies present for the virus, indicating some birds were infected, fought off the virus and survived, but we didn't see that," said Aldridge, a PhD candidate in the Faculty of Science. "The immunity appears to be extremely low for sage-grouse, which means it is going to take much longer for the population to develop resistance to the virus and to survive, if they are indeed capable. We don't know how long small populations like those found in Alberta or Saskatchewan can survive, while losing the genetic basis needed to maintain the population, but we may
'"/>

Contact: Phoebe Dey
phoebe.dey@ualberta.ca
780-492-0437
University of Alberta
20-Jul-2004


Page: 1 2

Related biology news :

1. Wolverine takes a road trip
2. Study in Science reveals recreational fishing takes big bite of ocean catch
3. Homeland security initiative takes Memphis ORNL technologies to the nation
4. UC Riverside researcher takes snapshots of the movement of molecules in a billionth of a second
5. Briggs takes to the molecular level Darwins findings on plants sensing the direction of light
6. Oxford Journals takes bold step towards free access to research
7. HIV takes cellular opportunities to aid infection
8. Newfound grasshopper takes to the trees on Konza Prairie
9. Life in the universe takes orders from space
10. Extreme 2003 takes students worldwide to the oceans depth
11. Workshop takes systems view of information processing in organisms

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: West Nile takes its toll rare bird

(Date:8/4/2015)... Aug. 04, 2015 ... has announced the addition of the ... and Service), Sub-Segment (Computer Forensics, Network Forensics, ... Types, Service, Vertical and Region - Global ... offering. By Component (Hardware, Software, ...
(Date:8/4/2015)... Aug. 4, 2015  AMRI (NASDAQ: AMRI ) today reported ... 2015. Highlights: , Second quarter contract revenue ... 2014 , Adjusted contract margins of ... $0.22, including a $0.05 decrease in EPS from royalties in the ... million "We are very pleased to present another ...
(Date:8/3/2015)... SAN JOSE, Calif. , Aug. 3, 2015 /PRNewswire/ ... developer of human interface solutions, today announced that members ... investment community at the Pacific Crest Global Technology Leadership ... Mountain Time. The conference will be held at the ... The presentation may include forward-looking information. ...
Breaking Biology News(10 mins):Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2AMRI Announces Second Quarter 2015 Results 2AMRI Announces Second Quarter 2015 Results 3AMRI Announces Second Quarter 2015 Results 4AMRI Announces Second Quarter 2015 Results 5AMRI Announces Second Quarter 2015 Results 6AMRI Announces Second Quarter 2015 Results 7AMRI Announces Second Quarter 2015 Results 8AMRI Announces Second Quarter 2015 Results 9AMRI Announces Second Quarter 2015 Results 10AMRI Announces Second Quarter 2015 Results 11AMRI Announces Second Quarter 2015 Results 12AMRI Announces Second Quarter 2015 Results 13AMRI Announces Second Quarter 2015 Results 14AMRI Announces Second Quarter 2015 Results 15AMRI Announces Second Quarter 2015 Results 16AMRI Announces Second Quarter 2015 Results 17AMRI Announces Second Quarter 2015 Results 18AMRI Announces Second Quarter 2015 Results 19AMRI Announces Second Quarter 2015 Results 20AMRI Announces Second Quarter 2015 Results 21AMRI Announces Second Quarter 2015 Results 22AMRI Announces Second Quarter 2015 Results 23AMRI Announces Second Quarter 2015 Results 24
(Date:8/4/2015)... (PRWEB) , ... August 04, 2015 , ... ... bushing materials for pumps and process equipment, announces the appointment of Dennis Rawle ... the marine and industrial industries. Most recently, he was General Manager and Technical ...
(Date:8/4/2015)... According to a new ... Cardiac Biomarker - Market Opportunities, and Forecast, 2014-2020", ... revenue of $2,085.9 million by 2020, registering a ... Troponins (T, I) would continue to dominate the ... sensitivity and specificity.      (Logo: http://photos.prnewswire.com/prnh/20140911/647229) ...
(Date:8/4/2015)... , Aug. 4, 2015 Trigemina, Inc., ... of non-narcotic, nasally delivered, analgesic drug products, announced today ... to the position of chief medical officer. Dr. Kori ... Trigemina, much of which has been focused in the ... to add Dr. Kori to our clinical team given ...
(Date:8/4/2015)... ... August 04, 2015 , ... RPS ... tests – today announced that Robert A. Gregg, PhD, has joined RPS as ... 30 years of relevant experience and remarkable achievements in the medical device and ...
Breaking Biology Technology:Dennis Rawle Joins Graphite Metallizing Corporation 2Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 2Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 3Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 4Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 5Trigemina Appoints Dr. Shashi Kori to the Position of Chief Medical Officer 2Trigemina Appoints Dr. Shashi Kori to the Position of Chief Medical Officer 3RPS Diagnostics Welcomes Robert Gregg as Senior Vice President of Clinical and Regulatory Affairs 2RPS Diagnostics Welcomes Robert Gregg as Senior Vice President of Clinical and Regulatory Affairs 3
Cached News: