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Continental-scale dynamics of avian influenza in U.S. waterfowl are driven by demography, migration and temperature
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Gorsich, Erin E., Webb, Colleen T., Mertone, Andrew A., Hoetinge, Jennifer A., Miller, Ryan S., Farnsworth, Matthew L., Swafford, Seth R., De Libertog, Thomas J., Pederseng, Kerri, Franklin, Alan B., McLean, Robert G., Wilsonk, Kenneth R. and Doherty Jr, Paul F. (2021) Continental-scale dynamics of avian influenza in U.S. waterfowl are driven by demography, migration and temperature. Ecological Applications, 31 (2). e2245. doi:10.1002/eap.2245 ISSN 1051-0761.
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Official URL: https://doi.org/10.1002/eap.2245
Abstract
Emerging diseases of wildlife origin are increasingly spilling over into humans and domestic animals. Surveillance and risk assessments for transmission between these populations are informed by a mechanistic understanding of the pathogens in wildlife reservoirs. For avian influenza viruses (AIV), much observational and experimental work in wildlife has been conducted at local scales, yet fully understanding their spread and distribution requires assessing the mechanisms acting at both local, (e.g., intrinsic epidemic dynamics), and continental scales, (e.g., long‐distance migration). Here, we combined a large, continental‐scale dataset on low pathogenic, Type A AIV in the United States with a novel network‐based application of bird banding/recovery data to investigate the migration‐based drivers of AIV and their relative importance compared to well‐characterised local drivers (e.g. demography, environmental persistence). We compared among regression models reflecting hypothesized ecological processes and evaluated their ability to predict AIV in space and time using within and out‐of‐sample validation. We found that predictors of AIV were associated with multiple mechanisms at local and continental scales. Hypotheses characterising local epidemic dynamics were strongly supported, with age, the age‐specific aggregation of migratory birds in an area and temperature being the best predictors of infection. Hypotheses defining larger, network‐based features of the migration processes, such as clustering or between‐cluster mixing explained less variation but were also supported. Therefore, our results support a role for local processes in driving the continental distribution of AIV.
Item Type: | Journal Article | |||||||||
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Subjects: | R Medicine > RA Public aspects of medicine | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | |||||||||
Library of Congress Subject Headings (LCSH): | Avian influenza, Waterfowl -- North America, Avian influenza -- Prevention , Migratory birds -- Diseases, Avian influenza -- Environmental aspects, Avian influenza -- Epidemiology, Influenza A virus | |||||||||
Journal or Publication Title: | Ecological Applications | |||||||||
Publisher: | Ecological Society of America | |||||||||
ISSN: | 1051-0761 | |||||||||
Official Date: | March 2021 | |||||||||
Dates: |
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Volume: | 31 | |||||||||
Number: | 2 | |||||||||
Article Number: | e2245 | |||||||||
DOI: | 10.1002/eap.2245 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 4 September 2020 | |||||||||
Date of first compliant Open Access: | 23 March 2021 | |||||||||
RIOXX Funder/Project Grant: |
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