This study investigated the sub-lethal effects of larval exposure to baculovirus on host life history and wing morphological traits using a model system, the speckled wood butterfly Pararge aegeria (L.) and the virus Autographa californica ucleopolyhedrovirus. Males and females showed similar responses to the viral infection. Infection significantly reduced larval growth rate, whilst an increase in development time allowed the critical mass for pupation to be attained. There was no direct effect of viral infection on the wing morphological traits examined. There was, however, an indirect effect of resisting infection; larvae that took longer to develop had reduced resource investment in adult flight muscle mass.
Affiliations
Oxfordshire, United KingdomERC Centre for Ecology and Hydrology
Oxford Brookes University,United KingdomEvolutionary Developmental Biology Research Group, Department of Biological and Medical Sciences
Oxfordshire, United KingdomERC Centre for Ecology and Hydrology
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Hesketh, H., Gibbs, M., Breuker, C. J., Van Dyck, H., Turner, E., & Hails, R. S. (2012). Exploring sub-lethal effects of exposure to a nucleopolyhedrovirus in the speckled wood (Pararge aegeria) butterfly. Journal of Invertebrate Pathology, 109(1), 165-168. https://doi.org/10.1016/j.jip.2011.10.013 (Original work published 2012)