Consumer-resource coexistence as a means of reducing infectious disease

Duffy, Kevin J.; Collins, Obiora Cornelius

doi:10.1080/17513758.2019.1577994

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…As a result, infected plants were able to persist in the system due to reduced herbivory on these plants but still allowing transmission. A general model investigated the relationship of the basic reproduction number with a further threshold parameter, the consumption number [ 96 ]. The behaviour of the model was complex but yielded results showing that “consumer-resource” co-existence could limit the spread of infectious disease.…”

Section: Discussionmentioning

confidence: 99%

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

et al. 2021

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Many plant viruses are transmitted by insect vectors. Transmission can be described as persistent or non-persistent depending on rates of acquisition, retention, and inoculation of virus. Much experimental evidence has accumulated indicating vectors can prefer to settle and/or feed on infected versus noninfected host plants. For persistent transmission, vector preference can also be conditional, depending on the vector’s own infection status. Since viruses can alter host plant quality as a resource for feeding, infection potentially also affects vector population dynamics. Here we use mathematical modelling to develop a theoretical framework addressing the effects of vector preferences for landing, settling and feeding–as well as potential effects of infection on vector population density–on plant virus epidemics. We explore the consequences of preferences that depend on the host (infected or healthy) and vector (viruliferous or nonviruliferous) phenotypes, and how this is affected by the form of transmission, persistent or non-persistent. We show how different components of vector preference have characteristic effects on both the basic reproduction number and the final incidence of disease. We also show how vector preference can induce bistability, in which the virus is able to persist even when it cannot invade from very low densities. Feedbacks between plant infection status, vector population dynamics and virus transmission potentially lead to very complex dynamics, including sustained oscillations. Our work is supported by an interactive interface https://plantdiseasevectorpreference.herokuapp.com/. Our model reiterates the importance of coupling virus infection to vector behaviour, life history and population dynamics to fully understand plant virus epidemics.

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Section: Discussionmentioning

confidence: 99%

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

et al. 2021

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“…Further experimental and modelling studies are required to disentangle direct pest effects from those resulting from virus infection (Zaffaroni et al, 2019). A general model investigated the relationship of the basic reproduction number with a further threshold parameter, the consumption number (Duffy & Collins 2019). The behaviour of the model was complex but yielded results showing that "consumer-resource" co-existence could limit the spread of infectious disease.…”

Section: Ecological Contextmentioning

confidence: 99%

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

Cunniffe

Taylor

Hamelin

et al. 2021

Preprint

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Many plant viruses are transmitted by insect vectors. Transmission can be described as persistent or non-persistent depending on rates of acquisition, retention, and inoculation of virus. Much experimental evidence has accumulated indicating vectors can prefer to settle and/or feed on infected versus noninfected host plants. For persistent transmission, vector preference can also be conditional, depending on the vector's own infection status. Since viruses can alter host plant quality as a resource for feeding, infection potentially also affects vector population dynamics. Here we use mathematical modelling to develop a theoretical framework addressing the effects of vector preferences for landing, settling and feeding, as well as potential effects of infection on vector population density, on plant virus epidemics. We explore the consequences of preferences that depend on the host (infected or healthy) and vector (viruliferous or nonviruliferous) phenotypes, and how this is affected by the form of transmission, persistent or non-persistent. We show how different components of vector preference have characteristic effects on both the basic reproduction number and the final incidence of disease. We also show how vector preference can induce bistability, in which the virus is able to persist even when it cannot invade from very low densities. Feedbacks between plant infection status, vector population dynamics and virus transmission potentially lead to very complex dynamics, including sustained oscillations. Our work is supported by an interactive interface https://plantdiseasevectorpreference.herokuapp.com/. Our model reiterates the importance of coupling virus infection to vector behaviour, life history and population dynamics to fully understand plant virus epidemics.

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Modeling anthrax-rabies interactions in zebra-jackal cycles

Mackey

Kribs

2021

Journal of Theoretical Biology

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Consumer-resource coexistence as a means of reducing infectious disease

Cited by 6 publications

References 44 publications

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

Epidemiological and ecological consequences of virus manipulation of host and vector in plant virus transmission

Modeling anthrax-rabies interactions in zebra-jackal cycles

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