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Latitudinally structured variation in the temperature dependence of damselfly growth rates
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2013 (English)In: Ecology Letters, ISSN 1461-023X, E-ISSN 1461-0248, Vol. 16, no 1, 64-71 p.Article in journal, Letter (Refereed) Published
Abstract [en]

The Metabolic Theory of Ecology predicts that the slope of the rate-temperature relationship, E, remains consistent across traits and organisms, acting as a major determinant of large-scale ecological patterns. Although E has recently been shown to vary systematically, we have a poor understanding of its ecological significance. To address this question, we conducted a common-garden experiment involving six damselfly species differing in distribution, estimating E at the level of full-sib families. Each species was sampled throughout its latitudinal range, allowing us to characterise variation in E along a latitudinal gradient spanning 3600 km. We show that E differs among populations and increases with latitude. E was right-skewness across species, but this was largely an artefact of the latitudinal trend. Increased seasonality towards higher latitude may contribute to the latitudinal trend in E. We conclude that E should be seen as a trait involved in local adaptation.

Place, publisher, year, edition, pages
2013. Vol. 16, no 1, 64-71 p.
Keyword [en]
Environmental variation, Growth rate, Metabolic theory of ecology, Thermal dependence, Universal temperature dependence
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-192013DOI: 10.1111/ele.12013ISI: 000312301300008OAI: oai:DiVA.org:uu-192013DiVA: diva2:600422
Available from: 2013-01-24 Created: 2013-01-15 Last updated: 2013-04-09Bibliographically approved

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Johansson, Frank
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