Detailed Information on Publication Record
2018
Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts
JANOUŠKOVÁ, Eva and Luděk BERECBasic information
Original name
Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts
Authors
JANOUŠKOVÁ, Eva (203 Czech Republic, guarantor, belonging to the institution) and Luděk BEREC (203 Czech Republic)
Edition
Journal of Theoretical Biology, London, ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2018, 0022-5193
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10602 Biology , Evolutionary biology
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 1.875
RIV identification code
RIV/00216224:14310/18:00108821
Organization unit
Faculty of Science
UT WoS
000433270900009
Keywords in English
Mathematical model; Infectious disease; Pest control; Population dynamics; Sterilization
Tags
Tags
International impact, Reviewed
Změněno: 2/1/2020 16:49, Mgr. Marie Šípková, DiS.
Abstract
V originále
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.
Links
| MUNI/A/1204/2017, interní kód MU |
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