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Avian diversity and West Nile virus: testing associations between biodiversity and infectious disease risk.

Proceedings. Biological sciences / The Royal Society.

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Abstract

The emergence of several high profile infectious diseases in recent years has focused attention on our need to understand the ecological factors contributing to the spread of infectious diseases. West Nile virus (WNV) is a mosquito-borne zoonotic disease that was first detected in the United States in 1999. The factors accounting for variation in the prevalence of WNV are poorly understood, but recentideas suggesting links between high biodiversity and reduced vector-borne disease risk may help account for distribution patterns of this disease. Since wild birds are the primary reservoir hosts for WNV, we tested associations between passerine (Passeriform) bird diversity, non-passerine (all other orders) bird diversity and virus infection rates in mosquitoes and humans to examine the extent to which bird diversity is associated with WNV infection risk. We found t h at non-passerine species richness (number of non-passerine species) was significantly negatively correlated with both mosquito and human infection rates, whereas there was no significant association between passerine species richness and any measure of infection risk. Our findings suggest that non-passerine diversity may play a role in dampening WNV amplification rates in mosquitoes, minimizing human disease risk.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Avian diversity and West Nile virus: testing associations between biodiversity and infectious disease risk.
Series title:
Proceedings. Biological sciences / The Royal Society.
Volume
273
Issue:
1582
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
109
Last page:
117
Number of Pages:
9