klaassen-hamperedforaging-2007.pdf (255.83 kB)
Hampered foraging and migratory performance in swans infected with low-pathogenic avian influenza A virus
journal contribution
posted on 2007-01-01, 00:00 authored by J van Gils, V Munster, R Radersma, D Liefhebber, R Fouchier, Marcel KlaassenMarcel KlaassenIt is increasingly acknowledged that migratory birds, notably waterfowl, play a critical role in the maintenance and spread of influenza A viruses. In order to elucidate the epidemiology of influenza A viruses in their natural hosts, a better understanding of the pathological effects in these hosts is required. Here we report on the feeding and migratory performance of wild migratory Bewick's swans (Cygnus columbianus bewickii Yarrell) naturally infected with low-pathogenic avian influenza (LPAI) A viruses of subtypes H6N2 and H6N8. Using information on geolocation data collected from Global Positioning Systems fitted to neck-collars, we show that infected swans experienced delayed migration, leaving their wintering site more than a month after uninfected animals. This was correlated with infected birds travelling shorter distances and fuelling and feeding at reduced rates. The data suggest that LPAI virus infections in wild migratory birds may have higher clinical and ecological impacts than previously recognised.
History
Journal
Plos oneVolume
2Issue
1Season
e184Pagination
1 - 6Publisher
Public Library of ScienceLocation
San Francisco, Calif.ISSN
1932-6203Language
engNotes
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Publication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2007, Plos OneUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC