| Autor: |
Miki, Takeshi, Yamanaka, Hiroki, Sogabe, Atsushi, Omori, Koji, Saito, Yasuhisa, Minamoto, Toshifumi, Uchii, Kimiko, Honjo, Mie N., Suzuki, Alata A., Kohmatsu, Yukihiro, Kawabata, Zen'ichiro |
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| Zdroj: |
Theoretical Ecology; Sep2023, Vol. 16 Issue 3, p195-208, 14p |
| Abstrakt: |
For ectotherms, habitat temperature is one of the most fundamental factors responsible for disease dynamics. Therefore, temperature-dependent habitat selection of hosts could alter their susceptibility to pathogens. Here, we examined the effect of host behavior in the fluctuating thermal regime on disease dynamics, by a dynamical modeling with field surveys. Cyprinid herpesvirus 3 (CyHV-3) was used as a model disease, which is a mass mortality agent of common carp (Cyprinus carpio). Telemetry analysis revealed that carp shifted their location according to the temporal fluctuations of the thermal regime in the habitat, suggesting a preference for specific temperatures. Numerical simulation using a disease transmission model reproduced the characteristic bimodal seasonal trends of infection rate to CyHV-3. The simulation demonstrated that the temperature preference of individual carp was central in determining whether the temperature-dependent behavior ameliorates or exacerbates disease severity. Moreover, it also demonstrated that increases in the fraction of warmer coastal areas can mitigate the impact of CyHV-3 on the carp population by promoting the acquisition of immunity. Our findings suggest that the prevalence of infectious disease in poikilothermic animals can be regulated by the combined effects of the thermal regime of their habitat and the host's thermally induced behavior. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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