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:


(Date:6/27/2016)... 2016 Research and Markets has announced the ... report to their offering. The ... to grow at a CAGR of 12.28% during the period ... an in-depth market analysis with inputs from industry experts. The report ... years. The report also includes a discussion of the key vendors ...
(Date:6/22/2016)... 2016   Acuant , the leading ... has partnered with RightCrowd ® to ... Management, Self-Service Kiosks and Continuous Workforce Assurance. ... functional enhancements to existing physical access control ... with an automated ID verification and authentication ...
(Date:6/21/2016)... , June 21, 2016 NuData ... the new role of principal product architect and ... the director of customer development. Both will report ... technical officer. The moves reflect NuData,s strategic growth ... response to high customer demand and customer focus ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... Antonio Texas (PRWEB) , ... ... ... today that it will share findings demonstrating the value of DNA microarray ... patients at this year’s San Antonio Breast Cancer Symposium. Using molecular test ...
(Date:12/2/2016)... ... December 01, 2016 , ... DrugDev believes the ... and a beautiful technology experience. All three tenets were on display at the 2nd ... leaders from over 40 sponsor, CRO and site organizations to discuss innovation and the ...
(Date:12/2/2016)... 2016   SurePure, Inc. (OTCQB: SURP) a ... Company has concluded an agreement with Tamarack Biotics under ... period to acquire units of the Company,s patented photopurification ... million.  Concurrently with the option, SurePure ... Tamarack will seek regulatory approvals in the ...
(Date:11/30/2016)... -- GenomOncology today announced the appointment of Joshua F. Coleman ... Dr. Coleman will oversee clinical content development and curation ... GenomOncology software suite empowers molecular pathologists with a seamless workflow ... support, from quality control through reporting. ... , , ...
Breaking Biology Technology:
Cached News: