How might Gyrodactylus parasitism modify trade-offs between female preference and susceptibility of males to predation in Trinidadian guppies?

Heckley, Alexis M.; Lira, José Jonathas Pereira Rodrigues de; Hendry, Andrew P.; Pérez‐Jvostov, Felipe

doi:10.1016/j.ijpara.2022.01.006

Cited by 4 publications

(2 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But if predation does not interact with anti-infection defence, increased selective predation should decrease prevalence and virulence as previously expected. Higher predation in guppy populations results in higher prevalence of worm ectoparasite infection and more virulent parasites [21], as our model predicts, but the selectivity of predation in this focal system has been indirectly supported by one study [32] and challenged by another [46].…”

Section: Discussionmentioning

confidence: 72%

Predation shifts coevolution toward higher host contact rate and parasite virulence

Walsman

Cressler

2022

Proc. R. Soc. B.

View full text Add to dashboard Cite

Hosts can avoid parasites (and pathogens) by reducing social contact, but such isolation may carry costs, e.g. increased vulnerability to predators. Thus, many predator–host–parasite systems confront hosts with a trade-off between predation and parasitism. Parasites, meanwhile, evolve higher virulence in response to increased host sociality and consequently, increased multiple infections. How does predation shift coevolution of host behaviour and parasite virulence? What if predators are selective, i.e. predators disproportionately capture the sickest hosts? We answer these questions with an eco-coevolutionary model parametrized for a Trinidadian guppy– Gyrodactylus spp. system. Here, increased predation drives host coevolution of higher grouping, which selects for higher virulence. Additionally, higher predator selectivity drives the contact rate higher and virulence lower. Finally, we show how predation and selectivity can have very different impacts on host density and prevalence depending on whether hosts or parasites evolve, or both. For example, higher predator selectivity led to lower prevalence with no evolution or only parasite evolution but higher prevalence with host evolution or coevolution. These findings inform our understanding of diverse systems in which host behavioural responses to predation may lead to increased prevalence and virulence of parasites.

show abstract

Section: Discussionmentioning

confidence: 72%

Predation shifts coevolution toward higher host contact rate and parasite virulence

Walsman

Cressler

2022

Proc. R. Soc. B.

View full text Add to dashboard Cite

show abstract

“…Gyrodactylus infection can reduce reproductive success as uninfected conspecifics avoid infected individuals [65]. Uninfected males display less to infected than uninfected females [66], and uninfected females prefer uninfected males [67]. However, infected female guppies may compensate for parasitism with changed mating behaviour, showing no preference for attractive over unattractive males [66].…”

Section: The Ecological Context Of Behavioural Plasticitymentioning

confidence: 99%

Insights into adaptive behavioural plasticity from the guppy model system

Fox,

Toure,

Heckley

et al. 2024

Proc. R. Soc. B.

View full text Add to dashboard Cite

Behavioural plasticity allows organisms to respond to environmental challenges on short time scales. But what are the ecological and evolutionary processes that underlie behavioural plasticity? The answer to this question is complex and requires experimental dissection of the physiological, neural and molecular mechanisms contributing to behavioural plasticity as well as an understanding of the ecological and evolutionary contexts under which behavioural plasticity is adaptive. Here, we discuss key insights that research with Trinidadian guppies has provided on the underpinnings of adaptive behavioural plasticity. First, we present evidence that guppies exhibit contextual, developmental and transgenerational behavioural plasticity. Next, we review work on behavioural plasticity in guppies spanning three ecological contexts (predation, parasitism and turbidity) and three underlying mechanisms (endocrinological, neurobiological and genetic). Finally, we provide three outstanding questions that could leverage guppies further as a study system and give suggestions for how this research could be done. Research on behavioural plasticity in guppies has provided, and will continue to provide, a valuable opportunity to improve understanding of the ecological and evolutionary causes and consequences of behavioural plasticity.

show abstract

Smoke toxicity effect of bio-fabricated mosquito coil for the sustainable management of mosquito vectors

Murugan,

Rajaganesh,

Hwang

et al. 2023

Journal of Natural Pesticide Research

View full text Add to dashboard Cite

How might Gyrodactylus parasitism modify trade-offs between female preference and susceptibility of males to predation in Trinidadian guppies?

Cited by 4 publications

References 62 publications

Predation shifts coevolution toward higher host contact rate and parasite virulence

Predation shifts coevolution toward higher host contact rate and parasite virulence

Insights into adaptive behavioural plasticity from the guppy model system

Smoke toxicity effect of bio-fabricated mosquito coil for the sustainable management of mosquito vectors

Contact Info

Product

Resources

About