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Evidence for carry-over effects of predator exposure on pathogen transmission potential.

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Title: Evidence for carry-over effects of predator exposure on pathogen transmission potential.
Authors: Roux, Olivier1,2 olivier.roux@ird.fr, Vantaux, Amélie1,2, Roche, Benjamin3, Yameogo, Koudraogo B.2, Dabiré, Kounbobr R.2, Diabaté, Abdoulaye2, Simard, Frederic1, Lefèvre, Thierry1,2
Source: Proceedings of the Royal Society B: Biological Sciences. 12/22/2015, Vol. 282 Issue 1821, p1-10. 10p. 6 Color Photographs.
Subjects: Biological models, Epidemiology methodology, Plasmodium falciparum, Natural foods, Environmental policy
Abstract: Accumulating evidence indicates that species interactions such as competition and predation can indirectly alter interactions with other community members, including parasites. For example, presence of predators can induce behavioural defences in the prey, resulting in a change in susceptibility to parasites. Such predator-induced phenotypic changes may be especially pervasive in prey with discrete larval and adult stages, for which exposure to predators during larval development can have strong carry-over effects on adult pheno-types. To the best of our knowledge, no study to date has examined possible carry-over effects of predator exposure on pathogen transmission. We addressed this question using a natural food web consisting of the human malaria parasite Plasmodium falciparum, the mosquito vector Anopheles coluzzii and a backswimmer, an aquatic predator of mosquito larvae. Although predator exposure did not significantly alter mosquito susceptibility to P. falciparum, it incurred strong fitness costs on other key mosquito life-history traits, including larval development, adult size, fecundity and longevity. Using an epidemiological model, we show that larval predator exposure should overall significantly decrease malaria transmission. These results highlight the importance of taking into account the effect of environmental stressors on disease ecology and epidemiology. [ABSTRACT FROM AUTHOR]
Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 112078436
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Evidence for carry-over effects of predator exposure on pathogen transmission potential.
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  Data: <searchLink fieldCode="AR" term="%22Roux%2C+Olivier%22">Roux, Olivier</searchLink><relatesTo>1,2</relatesTo><i> olivier.roux@ird.fr</i><br /><searchLink fieldCode="AR" term="%22Vantaux%2C+Amélie%22">Vantaux, Amélie</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Roche%2C+Benjamin%22">Roche, Benjamin</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Yameogo%2C+Koudraogo+B%2E%22">Yameogo, Koudraogo B.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Dabiré%2C+Kounbobr+R%2E%22">Dabiré, Kounbobr R.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Diabaté%2C+Abdoulaye%22">Diabaté, Abdoulaye</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Simard%2C+Frederic%22">Simard, Frederic</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lefèvre%2C+Thierry%22">Lefèvre, Thierry</searchLink><relatesTo>1,2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+Royal+Society+B%3A+Biological+Sciences%22">Proceedings of the Royal Society B: Biological Sciences</searchLink>. 12/22/2015, Vol. 282 Issue 1821, p1-10. 10p. 6 Color Photographs.
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  Data: <searchLink fieldCode="DE" term="%22Biological+models%22">Biological models</searchLink><br /><searchLink fieldCode="DE" term="%22Epidemiology+methodology%22">Epidemiology methodology</searchLink><br /><searchLink fieldCode="DE" term="%22Plasmodium+falciparum%22">Plasmodium falciparum</searchLink><br /><searchLink fieldCode="DE" term="%22Natural+foods%22">Natural foods</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+policy%22">Environmental policy</searchLink>
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  Data: Accumulating evidence indicates that species interactions such as competition and predation can indirectly alter interactions with other community members, including parasites. For example, presence of predators can induce behavioural defences in the prey, resulting in a change in susceptibility to parasites. Such predator-induced phenotypic changes may be especially pervasive in prey with discrete larval and adult stages, for which exposure to predators during larval development can have strong carry-over effects on adult pheno-types. To the best of our knowledge, no study to date has examined possible carry-over effects of predator exposure on pathogen transmission. We addressed this question using a natural food web consisting of the human malaria parasite Plasmodium falciparum, the mosquito vector Anopheles coluzzii and a backswimmer, an aquatic predator of mosquito larvae. Although predator exposure did not significantly alter mosquito susceptibility to P. falciparum, it incurred strong fitness costs on other key mosquito life-history traits, including larval development, adult size, fecundity and longevity. Using an epidemiological model, we show that larval predator exposure should overall significantly decrease malaria transmission. These results highlight the importance of taking into account the effect of environmental stressors on disease ecology and epidemiology. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1098/rspb.2015.2430
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      – SubjectFull: Biological models
        Type: general
      – SubjectFull: Epidemiology methodology
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      – SubjectFull: Plasmodium falciparum
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      – SubjectFull: Natural foods
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      – SubjectFull: Environmental policy
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      – TitleFull: Evidence for carry-over effects of predator exposure on pathogen transmission potential.
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              Text: 12/22/2015
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              Y: 2015
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