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dc.contributor.author
Salo, Tiina
dc.contributor.author
Kropf, Tabea
dc.contributor.author
Burdon, Francis J.
dc.contributor.author
Seppälä, Otto
dc.date.accessioned
2019-11-11T16:13:32Z
dc.date.available
2019-10-09T02:27:35Z
dc.date.available
2019-10-09T09:57:55Z
dc.date.available
2019-11-11T16:13:32Z
dc.date.issued
2019-10
dc.identifier.other
10.1002/ece3.5666
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/369338
dc.identifier.doi
10.3929/ethz-b-000369338
dc.description.abstract
The growing threat of global climate change has led to a profusion of studies examining the effects of warming on biota. Despite the potential importance of natural variability such as diurnal temperature fluctuations, most experimental studies on warming are conducted under stable temperatures. Here, we investigated whether the responses of an aquatic invertebrate grazer (Lymnaea stagnalis) to an increased average temperature differ when the thermal regime is either constant or fluctuates diurnally. Using thermal response curves for several life‐history and immune defense traits, we first identified the optimum and near‐critically high temperatures that Lymnaea potentially experience during summer heat waves. We then exposed individuals that originated from three different populations to these two temperatures under constant or fluctuating thermal conditions. After 7 days, we assessed growth, reproduction, and two immune parameters (phenoloxidase‐like activity and antibacterial activity of hemolymph) from each individual. Exposure to the near‐critically high temperature led to increased growth rates and decreased antibacterial activity of hemolymph compared to the optimum temperature, whilst temperature fluctuations had no effect on these traits. The results indicate that the temperature level per se, rather than the variability in temperature was the main driver altering trait responses in our study species. Forecasting responses in temperature‐related responses remains challenging, due to system‐specific properties that can include intraspecific variation. However, our study indicates that experiments examining the effects of warming using constant temperatures can give similar predictions as studies with fluctuating thermal dynamics, and may thus be useful indicators of responses in nature.
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/4.0/
dc.subject
Fluctuating temperature
en_US
dc.subject
Invertebrate
en_US
dc.subject
Population
en_US
dc.title
Diurnal variation around an optimum and near-critically high temperature does not alter the performance of an ectothermic aquatic grazer
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2019-09-26
ethz.journal.title
Ecology and Evolution
ethz.journal.volume
9
en_US
ethz.journal.issue
20
en_US
ethz.pages.start
11695
en_US
ethz.pages.end
11706
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2019-10-09T02:27:40Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.exportRequired
true
ethz.COinS
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