Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00108821" target="_blank" >RIV/00216224:14310/18:00108821 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/18:00489366 RIV/60076658:12310/18:43897236

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0022519318301759?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022519318301759?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jtbi.2018.04.017" target="_blank" >10.1016/j.jtbi.2018.04.017</a>

Result language

angličtina

Original language name

Host-pathogen dynamics under sterilizing pathogens and fecundity-longevity trade-off in hosts

Original language description

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.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Theoretical Biology

ISSN

0022-5193

e-ISSN

1095-8541

Volume of the periodical

450

Issue of the periodical within the volume

AUG

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

76-85

UT code for WoS article

000433270900009

EID of the result in the Scopus database

2-s2.0-85046398111