Roux Olivier auteur aut IRD Vantaux Amélie auteur aut IRD Roche Benjamin auteur aut IRD Yameogo K. B. auteur aut IRD Dabiré K. R. auteur aut IRD Diabaté A. auteur aut IRD Simard Frédéric auteur aut IRD Lefèvre Thierry auteur aut IRD text journalArticle eng text/pdf born digital access 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 phenotypes. 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. specialized Anopheles coluzzii carry-over effects host-parasite and predator-prey interactions life history non-consumptive effects Plasmodium falciparum BURKINA FASO 052 282 1821 art. 20152430 [10 p.] 2015 0962-8452 https://www.documentation.ird.fr/hor/fdi:010066094 10.1098/rspb.2015.2430 0962-8452 [F B010066094] https://www.documentation.ird.fr/hor/fdi:010066094 https://www.documentation.ird.fr/intranet/publi/2016/02/010066094.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2016-02-26 2017-08-23 fdi:010066094 fre