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@article{1415989,
author = {Janoušková, Eva and Berec, Luděk},
article_location = {London},
article_number = {AUG},
doi = {http://dx.doi.org/10.1016/j.jtbi.2018.04.017},
keywords = {Mathematical model; Infectious disease; Pest control; Population dynamics; Sterilization},
language = {eng},
issn = {0022-5193},
journal = {Journal of Theoretical Biology},
title = {Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts},
url = {https://www.sciencedirect.com/science/article/pii/S0022519318301759?via%3Dihub},
volume = {450},
year = {2018}
}
TY - JOUR
ID - 1415989
AU - Janoušková, Eva - Berec, Luděk
PY - 2018
TI - Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts
JF - Journal of Theoretical Biology
VL - 450
IS - AUG
SP - 76-85
EP - 76-85
PB - ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
SN - 00225193
KW - Mathematical model
KW - Infectious disease
KW - Pest control
KW - Population dynamics
KW - Sterilization
UR - https://www.sciencedirect.com/science/article/pii/S0022519318301759?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S0022519318301759?via%3Dihub
N2 - Infectious diseases are known to regulate population dynamics, an observation that underlies the use of pathogens as control agents of unwanted populations. Sterilizing rather than lethal pathogens are often suggested so as to avoid unnecessary suffering of the infected hosts. Until recently, models used to assess plausibility of pathogens as potential pest control agents have not included a possibility that reduced fecundity of the infected individuals may save their energy expenditure on reproduction and thus increase their longevity relative to the susceptible ones. Here, we develop a model of host-pathogen interaction that builds on this idea. We analyze the model for a variety of infection transmission functions, revealing that the indirect effect of sterilizing pathogens on mortality of the infected hosts, mediated by a fecundity-longevity trade-off, may cause hosts at endemic equilibria to attain densities higher than when there is no effect of pathogens on host mortality. On the other hand, an opposite outcome occurs when the fecundity-longevity trade-off is concave or when the degree of fecundity reduction by the pathogen is high enough. This points to a possibility that using sterilizing pathogens as agents of pest control may actually be less effective than previously thought, the more so since we also suggest that if sexual selection acts on the host species then the presence of sterilizing pathogens may even enhance host densities above the levels achieved without infection.
ER -
JANOUŠKOVÁ, Eva a Luděk BEREC. Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts. \textit{Journal of Theoretical Biology}. London: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2018, roč.~450, AUG, s.~76-85. ISSN~0022-5193. Dostupné z: https://dx.doi.org/10.1016/j.jtbi.2018.04.017.
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