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dc.contributor.author
Karvonen, Anssi
dc.contributor.author
Kristansson, Bjarni K.
dc.contributor.author
Skúlason, Skúli
dc.contributor.author
Lanki, Maiju
dc.contributor.author
Rellstab, Christian
dc.contributor.author
Jokela, Jukka
dc.date.accessioned
2019-06-14T16:59:50Z
dc.date.available
2017-06-10T18:25:53Z
dc.date.available
2019-06-14T16:59:50Z
dc.date.issued
2013-06
dc.identifier.other
10.1002/ece3.568
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/68572
dc.identifier.doi
10.3929/ethz-b-000068572
dc.description.abstract
Parasite communities of fishes are known to respond directly to the abiotic environment of the host, for example, to water quality and water temperature. Biotic factors are also important as they affect the exposure profile through heterogeneities in parasite distribution in the environment. Parasites in a particular environment may pose a strong selection on fish. For example, ecological differences in selection by parasites have been hypothesized to facilitate evolutionary differentiation of freshwater fish morphs specializing on different food types. However, as parasites may also respond directly to abiotic environment the parasite risk does not depend only on biotic features of the host environment. It is possible that different morphs experience specific selection gradients by parasites but it is not clear how consistent the selection is when abiotic factors change. We examined parasite pressure in sympatric morphs of threespine stickleback (Gasterosteus aculeatus) across a temperature gradient in two large Icelandic lakes, Myvatn and Thingvallavatn. Habitat‐specific temperature gradients in these lakes are opposite. Myvatn lava rock morph lives in a warm environment, while the mud morph lives in the cold. In Thingvallavatn, the lava rock morph lives in a cold environment and the mud morph in a warm habitat. We found more parasites in fish living in higher temperature in both lakes, independent of the fish morph, and this pattern was similar for the two dominating parasite taxa, trematodes and cestodes. However, at the same time, we also found higher parasite abundance in a third morph living in deep cold–water habitat in Thingvallavatn compared to the cold‐water lava morph, indicating strong effect of habitat‐specific biotic factors. Our results suggest complex interactions between water temperature and biotic factors in determining the parasite community structure, a pattern that may have implications for differentiation of stickleback morphs.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.subject
Adaptive radiation
en_US
dc.subject
Diplostomum
en_US
dc.subject
Ecological speciation
en_US
dc.subject
Habitat specialization
en_US
dc.subject
Stickleback morphotypes
en_US
dc.subject
Host-parasite interactions
en_US
dc.title
Water temperature, not fish morph, determines parasite infections of sympatric Icelandic threespine sticklebacks (Gasterosteus aculeatus)
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
ethz.journal.title
Ecology and Evolution
ethz.journal.volume
3
en_US
ethz.journal.issue
6
en_US
ethz.pages.start
1507
en_US
ethz.pages.end
1517
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.nebis
007041168
ethz.publication.place
S.l.
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02720 - Institut für Integrative Biologie / Institute of Integrative Biology::03705 - Jokela, Jukka / Jokela, Jukka
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02720 - Institut für Integrative Biologie / Institute of Integrative Biology::03705 - Jokela, Jukka / Jokela, Jukka
ethz.date.deposited
2017-06-10T18:26:08Z
ethz.source
ECIT
ethz.identifier.importid
imp593650bb0043447545
ethz.ecitpid
pub:108913
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-19T12:54:33Z
ethz.rosetta.lastUpdated
2019-06-14T17:00:00Z
ethz.rosetta.versionExported
true
ethz.COinS
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