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dc.contributor.authorThieltges, David W.
dc.contributor.authorAmundsen, Per-Arne
dc.contributor.authorHechinger, Ryan F.
dc.contributor.authorJohnson, Pieter T.J.
dc.contributor.authorLafferty, Kevin D.
dc.contributor.authorMouritsen, Kim N.
dc.contributor.authorPreston, Daniel L.
dc.contributor.authorReise, Karsten
dc.contributor.authorZander, C. Dieter
dc.contributor.authorPoulin, Robert
dc.date.accessioned2017-12-09T12:35:52Z
dc.date.available2017-12-09T12:35:52Z
dc.date.issued2013-04-25
dc.description.abstractWhile the recent inclusion of parasites into food-web studies has highlighted the role of parasites as consumers, there is accumulating evidence that parasites can also serve as prey for predators. Here we investigated empirical patterns of predation on parasites and their relationships with parasite transmission in eight topological food webs representing marine and freshwater ecosystems. Within each food web, we examined links in the typical predator – prey sub web as well as the predator – parasite sub web, i.e. the quadrant of the food web indicating which predators eat parasites. Most predator – parasite links represented ‘concomitant predation’ (consumption and death of a parasite along with the prey/host; 58 – 72%), followed by ‘ trophic transmission ’ (predator feeds on infected prey and becomes infected; 8 – 32%) and predation on free-living parasite life-cycle stages (4 – 30%). Parasite life-cycle stages had, on average, between 4.2 and 14.2 predators. Among the food webs, as predator richness increased, the number of links exploited by trophically transmitted parasites increased at about the same rate as did the number of links where these stages serve as prey. On the whole, our analyses suggest that predation on parasites has important consequences for both predators and parasites, and food web structure. Because our analysis is solely based on topological webs, determining the strength of these interactions is a promising avenue for future research.en_US
dc.descriptionSource at <a href=http://dx.doi.org/10.1111/j.1600-0706.2013.00243.x> http://dx.doi.org/10.1111/j.1600-0706.2013.00243.x </a>en_US
dc.identifier.citationThieltges, Amundsen P-A, Hechinger, Johnson, Lafferty KD, Mouritsen, Preston, Reise K, Zander, Poulin R. Parasites as prey in aquatic food webs: implications for predator infection and parasite transmission. Oikos. 2013;122(10):1473-1482en_US
dc.identifier.cristinIDFRIDAID 1053990
dc.identifier.doi10.1111/j.1600-0706.2013.00243.x
dc.identifier.issn0030-1299
dc.identifier.issn1600-0706
dc.identifier.urihttps://hdl.handle.net/10037/11842
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalOikos
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FRIMEDBIO/213610/Norway/The role of parasites in food-web topology and dynamics of subarctic lakes//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Parasittologi: 484en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Parasitology: 484en_US
dc.titleParasites as prey in aquatic food webs: implications for predator infection and parasite transmissionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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