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Latitudinally struc...
Latitudinally structured variation in the temperature dependence of damselfly growth rates
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- Nilsson-Örtman, Viktor, 1984- (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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- Stoks, R. (author)
- University of Leuven
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- De Block, M. (author)
- University of Leuven
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- Johansson, H. (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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- Johansson, Frank (author)
- Umeå universitet,Uppsala universitet,Zooekologi,Institutionen för ekologi, miljö och geovetenskap
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(creator_code:org_t)
- 2012-10-11
- 2013
- English.
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In: Ecology Letters. - : Wiley. - 1461-023X .- 1461-0248. ; 16:1, s. 64-71
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Environmental variation
- Growth rate
- Metabolic theory of ecology
- Thermal dependence
- Universal temperature dependence
Publication and Content Type
- ref (subject category)
- art (subject category)
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