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dc.contributor.authorShaw, Jenny Carolyn
dc.contributor.authorHenriksen, Eirik Haugstvedt
dc.contributor.authorKnudsen, Rune
dc.contributor.authorKuhn, Jesper Andreas
dc.contributor.authorKuris, Armand M.
dc.contributor.authorLafferty, Kevin D.
dc.contributor.authorSiwertsson, Anna
dc.contributor.authorSoldánová, Miroslava
dc.contributor.authorAmundsen, Per-Arne
dc.date.accessioned2021-04-22T08:49:28Z
dc.date.available2021-04-22T08:49:28Z
dc.date.issued2020-10-05
dc.description.abstractAmphipods are often key species in aquatic food webs due to their functional roles in the ecosystem and as intermediate hosts for trophically transmitted parasites. Amphipods can also host many parasite species, yet few studies address the entire parasite community of a gammarid population, precluding a more dynamic understanding of the food web. We set out to identify and quantify the parasite community of <i>Gammarus lacustris</i> to understand the contributions of the amphipod and its parasites to the Takvatn food web. We identified seven parasite taxa: a direct life cycle gregarine, <i>Rotundula</i> sp., and larval stages of two digenean trematode genera, two cestodes, one nematode, and one acanthocephalan. The larval parasites use either birds or fishes as final hosts. Bird parasites predominated, with trematode <i>Plagiorchis</i> sp. having the highest prevalence (69%) and mean abundance (2.7). Fish parasites were also common, including trematodes <i>Crepidostomum</i> spp., nematode <i>Cystidicola farionis</i>, and cestode <i>Cyathocephalus truncatus</i> (prevalences 13, 6, and 3%, respectively). Five parasites depend entirely on <i>G. lacustris</i> to complete their life cycle. At least 11.4% of the overall parasite diversity in the lake was dependent on <i>G. lacustris</i>, and 16% of the helminth diversity required or used the amphipod in their life cycles. These dependencies reveal that in addition to being a key prey item in subarctic lakes, <i>G. lacustris</i> is also an important host for maintaining parasite diversity in such ecosystems.en_US
dc.identifier.citationShaw JC, Henriksen EH, Knudsen R, Kuhn JA, Kuris AM, Lafferty KD, Siwertsson A, Soldánová M, Amundsen P-A. High parasite diversity in the amphipod Gammarus lacustris in a subarctic lake. Ecology and Evolution. 2020;19:12385-12394en_US
dc.identifier.cristinIDFRIDAID 1868520
dc.identifier.doihttps://doi.org/10.1002/ece3.6869
dc.identifier.issn2045-7758
dc.identifier.urihttps://hdl.handle.net/10037/20994
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalEcology and Evolution
dc.relation.projectIDNorges forskningsråd: 213610en_US
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.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400en_US
dc.titleHigh parasite diversity in the amphipod Gammarus lacustris in a subarctic lakeen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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