Disease spread in age structured populations with maternal age effects

Clark, J. , McNally, L. and Little, T. (2017) Disease spread in age structured populations with maternal age effects. Ecology Letters, 20(4), pp. 445-451. (doi: 10.1111/ele.12745)

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Fundamental ecological processes, such as extrinsic mortality, determine population age structure. This influences disease spread when individuals of different ages differ in susceptibility or when maternal age determines offspring susceptibility. We show that Daphnia magna offspring born to young mothers are more susceptible than those born to older mothers, and consider this alongside previous observations that susceptibility declines with age in this system. We used a susceptible-infected compartmental model to investigate how age-specific susceptibility and maternal age effects on offspring susceptibility interact with demographic factors affecting disease spread. Our results show a scenario where an increase in extrinsic mortality drives an increase in transmission potential. Thus, we identify a realistic context in which age effects and maternal effects produce conditions favouring disease transmission.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Clark, Dr Jessica
Authors: Clark, J., McNally, L., and Little, T.
Subjects:Q Science > Q Science (General)
Q Science > QA Mathematics
Q Science > QL Zoology
College/School:College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine
Journal Name:Ecology Letters
ISSN (Online):1461-0248
Published Online:07 March 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Ecology Letters
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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