Show simple item record

dc.contributor.authorSeppälä, Otto
dc.contributor.authorKarvonen, Anssi
dc.contributor.authorKuosa, Marja
dc.contributor.authorHaataja, Maarit
dc.contributor.authorJokela, Jukka
dc.date.accessioned2013-12-11T07:55:37Z
dc.date.available2013-12-11T07:55:37Z
dc.date.issued2013fi
dc.identifier.citationSeppälä, O., Karvonen, A., Kuosa, M., Haataja, M., & Jokela, J. (2013). Are sick individuals weak competitors? Competitive ability of snails parasitized by a gigantism-inducing trematode. <em>PLOS ONE</em>, 8 (10). <a href="http://dx.doi.org/10.1371/journal.pone.0079366">doi:10.1371/journal.pone.0079366</a>fi
dc.identifier.otherTUTKAID_58306
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/42633
dc.description.abstractParasitized individuals are often expected to be poor competitors because they are weakened by infections. Many trematode species, however, although extensively exploiting their mollusc hosts, also induce gigantism (increased host size) by diverting host resources towards growth instead of reproduction. In such systems, alternatively to reduced competitive ability due to negative effects of parasitism on host performance, larger size could allow more efficient resource acquisition and thus increase the relative competitive ability of host individuals. We addressed this hypothesis by testing the effect of a trematode parasite Diplostomum pseudospathaceum on the competitive ability of its snail host Lymnaea stagnalis. We experimentally examined the growth of snails kept in pairs in relation to their infection status and intensity of resource competition (i.e. food availability). We found that parasitized snails grew faster and their reproduction was reduced compared to unparasitized individuals indicating parasite-induced gigantism. However, growth of the snails was faster when competing with parasitized individuals compared to unparasitized snails indicating reduced competitive ability due to parasitism. The latter effect, however, was relatively weak suggesting that the effects of the parasite on snail physiology may partly override each other in determining competitive ability.fi
dc.language.isoeng
dc.publisherPublic Library of Science
dc.relation.ispartofseriesPLoS ONE
dc.relation.urihttp://www.plosone.org/
dc.subject.otherhost-paraiste interactionsfi
dc.subject.othergigantismfi
dc.titleAre sick individuals weak competitors? Competitive ability of snails parasitized by a gigantism-inducing trematodefi
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201312112777
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosThe Department of Biological and Environmental Scienceen
dc.contributor.oppiaineEkologia ja evoluutiobiologia
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2013-12-11T04:30:24Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1932-6203
dc.relation.numberinseries10
dc.relation.volume8
dc.type.versionpublishedVersion
dc.rights.copyright© 2013 Seppälä et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttps://creativecommons.org/licenses/by/3.0/
dc.relation.doi10.1371/journal.pone.0079366


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

© 2013 Seppälä et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Except where otherwise noted, this item's license is described as © 2013 Seppälä et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.