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dc.contributor.authorQvenild, Tore
dc.contributor.authorFjeld, Eirik
dc.contributor.authorFjellheim, Arne
dc.contributor.authorHammar, Johan
dc.contributor.authorHesthagen, Trygve
dc.contributor.authorLakka, Hanna-Kaisa
dc.date.accessioned2021-12-20T12:50:39Z
dc.date.available2021-12-20T12:50:39Z
dc.date.issued2021
dc.identifier.citationQvenild, T., Fjeld, E., Fjellheim, A., Hammar, J., Hesthagen, T., & Lakka, H.-K. (2021). Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range. <i>Fauna Norvegica</i>, <i>41</i>, 50-88. <a href="https://doi.org/10.5324/fn.v41i0.3832" target="_blank">https://doi.org/10.5324/fn.v41i0.3832</a>
dc.identifier.otherCONVID_102386480
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/79068
dc.description.abstractThe Arctic tadpole shrimp Lepidurus arcticus has a circumpolar distribution and the Scandes (Fennoscandian Mountains) marks its southernmost limit in Europe. Within this area, 391 natural and 88 regulated lakes with L. arcticus have been identified, of which 87% are above the treeline. The lakes hosting L. arcticus decrease in altitude from south to north, which results from its temperature preferences. The majority of the locations are at a lower lake air temperature than 11°C which is equivalent to a water temperature near 14°C. This is assumed to be near the upper thermal threshold for L. arcticus. In lakes that exceed this average summer water temperature (1 July – 15 September), sustainable populations seem to be rare. In warmer lakes, life cycle mismatches are assumed to explain the absence of L. arcticus, most likely by affecting the embryo and juvenile stages. The distribution appears to be dichotomous, with one large northern area north of 65°N and one separated southern “island”. Only two locations of L. arcticus are known for the area between latitudes 62.88 and 64.39°N. In this part of the Scandes, the lakes are likely too warm to host L. arcticus as most of them are situated below 700 m a.s.l. This may also be the case in the northernmost region, north of 70°N, where only 11 populations are recorded. Most of the lakes in this area typically occurs below 400 m a.s.l. L. arcticus populations are sensitive to fish predation, and dense fish populations may be another stressor limiting its distribution. In contrast to water bodies in the High Arctic where L. arcticus only exists in shallow, fishless ponds, in the Scandes they co-exist with fish in 97% of the findings. Global warming has already modified the environment of the Scandes, and populations of L. arcticus are at threat in many of the small and shallow water bodies at low altitudes.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherNorwegian University of Science and Technology (NTNU) Library
dc.relation.ispartofseriesFauna Norvegica
dc.rightsCC BY 4.0
dc.subject.otherCrustacea
dc.subject.otherdistribution
dc.subject.otherclimate change
dc.subject.otherthermal conditions
dc.titleUpper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202112206050
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineResurssiviisausyhteisöfi
dc.contributor.oppiaineSchool of Resource Wisdomen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange50-88
dc.relation.issn1502-4873
dc.relation.volume41
dc.type.versionpublishedVersion
dc.rights.copyright© 2021 the Authors
dc.rights.accesslevelopenAccessfi
dc.subject.ysoilmastonmuutokset
dc.subject.ysosopeutuminen
dc.subject.ysolevinneisyys
dc.subject.ysoäyriäiset
dc.subject.ysolämmönsieto
dc.subject.ysoarktinen alue
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p5729
jyx.subject.urihttp://www.yso.fi/onto/yso/p6137
jyx.subject.urihttp://www.yso.fi/onto/yso/p7415
jyx.subject.urihttp://www.yso.fi/onto/yso/p5659
jyx.subject.urihttp://www.yso.fi/onto/yso/p25351
jyx.subject.urihttp://www.yso.fi/onto/yso/p12434
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.5324/fn.v41i0.3832


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