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:7/31/2014)... tuna movements in the northwestern Atlantic Ocean led by ... at the University of Massachusetts Amherst, found among other ... with pronounced north-south movements from Georges Bank to the ... Cape Hatteras southwest of Bermuda for foraging. , This ... one of the most important commercial tuna species in ...
(Date:7/31/2014)... by the National Science Foundation (NSF), counters a ... atmospheric warming, indicating instead that certain Arctic lakes ... the atmosphere. , The study, published this ... on thermokarst lakes, which occur as permafrost thaws ... fresh water, converting what was previously frozen land ...
(Date:7/31/2014)... By tracing nearly 3,000 genes to the earliest ... Florida scientists have created an extensive "Tree of ... next-generation DNA sequencing. , Among the study,s ... to small moths than to large ones, which ... The study also found that some insects once ...
Breaking Biology News(10 mins):Study of bigeye tuna in Northwest Atlantic uses new tracking methods 2Study of bigeye tuna in Northwest Atlantic uses new tracking methods 3Certain Arctic lakes store more greenhouse gases than they release 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 3
(Date:7/31/2014)... July 31, 2014 Today BioSpace , the leading life ... map campaign spotlighting the life sciences community in Illinois ... Kansas , Michigan , Minnesota ... Ohio and Wisconsin . ... percent of all job postings on BioSpace originating in this region in ...
(Date:7/31/2014)... Nearly 20,000 medical professionals and healthcare leaders ... Clinical Lab Expo in Chicago ... diagnostic research and technology that will advance medicine and ... of Wednesday, July 30, more than 19,500 attendees had ... Lab Expo, with more than 10,000 of these attendees ...
(Date:7/31/2014)... reason people over 60 are not donor candidates for ... with time, making the elderly prone to life-threatening infection ... team now has discovered a reason why. , "We ... of blood-forming cells to maintain blood production over time ... that could be restored for rejuvenation therapies," said Emmanuelle ...
(Date:7/31/2014)... Alan Turing, the British mathematician (1912-1954), is famous for ... the 20th century. In 1936 he published a paper, ... first formal concept of a computer algorithm. He next ... designing the machines which cracked the German military codes, ... crucial battles. And in the late 1940,s he turned ...
Breaking Biology Technology:Midwest Biotech Leaders Featured On BioSpace Map 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3Key to aging immune system is discovered 2A mathematical theory proposed by Alan Turing in 1952 can explain the formation of fingers 2A mathematical theory proposed by Alan Turing in 1952 can explain the formation of fingers 3
Cached News: