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Ecological and life-history traits and their relationship with West Nile virus and Saint Louis Encephalitis virus exposure risk

View ORCID ProfileO. Giayetto, View ORCID ProfileA.P. Mansilla, View ORCID ProfileF.N. Nazar, View ORCID ProfileA. Diaz
doi: https://doi.org/10.1101/2023.01.30.526345
O. Giayetto
1Instituto de Investigaciones Biológicas y Técnicas (IIBYT) – CONICET, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba (UNC)
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A.P. Mansilla
2Instituto de Ciencias de la Tierra y Ambientales de La Pampa (INCITAP)-CONICET, Universidad Nacional de La Pampa (UNLPam), Colaboratorio de Biodiversidad, Ecología y Conservación (ColBEC) (FCEyN-UNLPam)
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F.N. Nazar
1Instituto de Investigaciones Biológicas y Técnicas (IIBYT) – CONICET, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba (UNC)
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A. Diaz
3Laboratorio de Arbovirus – Instituto de Virología “Dr. J. M. Vanella” – Facultad de Ciencias Médicas – Universidad Nacional de Córdoba
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  • For correspondence: adrian.diaz@conicet.gov.ar
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Abstract

Host life-history traits can influence host-vector encounter rates, and so differentially determine the exposure risk of bird species. This modulation of host-virus encounters’ dynamics is especially important when facing “generalist” arboviruses like West Nile virus (WNV) and Saint Louis Encephalitis virus (SLEV). Using prevalence data collected by our laboratory since 2004, we tested several hypothesis that included birds’ ecological and life-history traits to determine which traits were better predictors of birds’ exposure risk to these arboviruses. By means of information-theoretic procedures and generalized mixed linear models, we observed that body mass was an important trait when predicting birds’ exposure risk to WNV and SLEV and migratory status significantly influenced birds’ exposure risk only to WNV. Our study highlights important traits to consider when studying the transmission system of these arboviruses, being useful to focus resources when characterizing viral transmission networks and discuss the repercussions of these traits over birds’ immune function throughout the pace of life syndrome and trade-offs theory.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • https://doi.org/10.6084/m9.figshare.21978875.v1

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted February 02, 2023.
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Ecological and life-history traits and their relationship with West Nile virus and Saint Louis Encephalitis virus exposure risk
O. Giayetto, A.P. Mansilla, F.N. Nazar, A. Diaz
bioRxiv 2023.01.30.526345; doi: https://doi.org/10.1101/2023.01.30.526345
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Ecological and life-history traits and their relationship with West Nile virus and Saint Louis Encephalitis virus exposure risk
O. Giayetto, A.P. Mansilla, F.N. Nazar, A. Diaz
bioRxiv 2023.01.30.526345; doi: https://doi.org/10.1101/2023.01.30.526345

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