Metabolic cold adaptation contributes little to the interspecific variation in metabolic rates of 65 species of Drosophilidae

Branwen Messamah, Vanessa Kellermann, Hans Malte, Volker Loeschcke, Johannes Overgaard

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Metabolic cold adaptation (MCA) is a controversial hypothesis suggesting that cold adapted species display an elevated metabolic rate (MR) compared to their warm climate relatives. Here we test for the presence of MCA in 65 species of drosophilid flies reared under common garden conditions. MR was measured at both 10 and 20 °C for both sexes and data were analyzed in relation to the natural thermal environment of these species. We found considerable interspecific variation in MR ranging from 1.34 to 8.99 µW mg−1 at 10 °C. As predicted by Bergmann's rule body mass of fly species correlated negatively with annual mean temperature (AMT), such that larger species were found in colder environments. Because larger flies have a higher total MR we found MR to vary with AMT, however, after inclusion of mass as a co-variate we found no significant effect of AMT. Furthermore, we did not find that thermal sensitivity of MR (Q10) varied with AMT. Based on this broad collection of species we therefore conclude that there is no adaptive pattern of metabolic cold adaptation within drosophilid species ranging from sub-arctic to tropical environments.

Original languageEnglish
Pages (from-to)309-316
Number of pages8
JournalJournal of Insect Physiology
Volume98
DOIs
Publication statusPublished - 1 Apr 2017

Keywords

  • Bergmann's rule
  • Cold tolerance
  • Fruit fly
  • Geographic distribution
  • Metabolism
  • Respirometry
  • Standard metabolic rate

Cite this

@article{1c61d6ee837a4d3a9b21cec3efe5de93,
title = "Metabolic cold adaptation contributes little to the interspecific variation in metabolic rates of 65 species of Drosophilidae",
abstract = "Metabolic cold adaptation (MCA) is a controversial hypothesis suggesting that cold adapted species display an elevated metabolic rate (MR) compared to their warm climate relatives. Here we test for the presence of MCA in 65 species of drosophilid flies reared under common garden conditions. MR was measured at both 10 and 20 °C for both sexes and data were analyzed in relation to the natural thermal environment of these species. We found considerable interspecific variation in MR ranging from 1.34 to 8.99 µW mg−1 at 10 °C. As predicted by Bergmann's rule body mass of fly species correlated negatively with annual mean temperature (AMT), such that larger species were found in colder environments. Because larger flies have a higher total MR we found MR to vary with AMT, however, after inclusion of mass as a co-variate we found no significant effect of AMT. Furthermore, we did not find that thermal sensitivity of MR (Q10) varied with AMT. Based on this broad collection of species we therefore conclude that there is no adaptive pattern of metabolic cold adaptation within drosophilid species ranging from sub-arctic to tropical environments.",
keywords = "Bergmann's rule, Cold tolerance, Fruit fly, Geographic distribution, Metabolism, Respirometry, Standard metabolic rate",
author = "Branwen Messamah and Vanessa Kellermann and Hans Malte and Volker Loeschcke and Johannes Overgaard",
year = "2017",
month = "4",
day = "1",
doi = "10.1016/j.jinsphys.2017.02.003",
language = "English",
volume = "98",
pages = "309--316",
journal = "Journal of Insect Physiology",
issn = "0022-1910",
publisher = "Elsevier",

}

Metabolic cold adaptation contributes little to the interspecific variation in metabolic rates of 65 species of Drosophilidae. / Messamah, Branwen; Kellermann, Vanessa; Malte, Hans; Loeschcke, Volker; Overgaard, Johannes.

In: Journal of Insect Physiology, Vol. 98, 01.04.2017, p. 309-316.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Metabolic cold adaptation contributes little to the interspecific variation in metabolic rates of 65 species of Drosophilidae

AU - Messamah, Branwen

AU - Kellermann, Vanessa

AU - Malte, Hans

AU - Loeschcke, Volker

AU - Overgaard, Johannes

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Metabolic cold adaptation (MCA) is a controversial hypothesis suggesting that cold adapted species display an elevated metabolic rate (MR) compared to their warm climate relatives. Here we test for the presence of MCA in 65 species of drosophilid flies reared under common garden conditions. MR was measured at both 10 and 20 °C for both sexes and data were analyzed in relation to the natural thermal environment of these species. We found considerable interspecific variation in MR ranging from 1.34 to 8.99 µW mg−1 at 10 °C. As predicted by Bergmann's rule body mass of fly species correlated negatively with annual mean temperature (AMT), such that larger species were found in colder environments. Because larger flies have a higher total MR we found MR to vary with AMT, however, after inclusion of mass as a co-variate we found no significant effect of AMT. Furthermore, we did not find that thermal sensitivity of MR (Q10) varied with AMT. Based on this broad collection of species we therefore conclude that there is no adaptive pattern of metabolic cold adaptation within drosophilid species ranging from sub-arctic to tropical environments.

AB - Metabolic cold adaptation (MCA) is a controversial hypothesis suggesting that cold adapted species display an elevated metabolic rate (MR) compared to their warm climate relatives. Here we test for the presence of MCA in 65 species of drosophilid flies reared under common garden conditions. MR was measured at both 10 and 20 °C for both sexes and data were analyzed in relation to the natural thermal environment of these species. We found considerable interspecific variation in MR ranging from 1.34 to 8.99 µW mg−1 at 10 °C. As predicted by Bergmann's rule body mass of fly species correlated negatively with annual mean temperature (AMT), such that larger species were found in colder environments. Because larger flies have a higher total MR we found MR to vary with AMT, however, after inclusion of mass as a co-variate we found no significant effect of AMT. Furthermore, we did not find that thermal sensitivity of MR (Q10) varied with AMT. Based on this broad collection of species we therefore conclude that there is no adaptive pattern of metabolic cold adaptation within drosophilid species ranging from sub-arctic to tropical environments.

KW - Bergmann's rule

KW - Cold tolerance

KW - Fruit fly

KW - Geographic distribution

KW - Metabolism

KW - Respirometry

KW - Standard metabolic rate

UR - http://www.scopus.com/inward/record.url?scp=85013287177&partnerID=8YFLogxK

U2 - 10.1016/j.jinsphys.2017.02.003

DO - 10.1016/j.jinsphys.2017.02.003

M3 - Article

VL - 98

SP - 309

EP - 316

JO - Journal of Insect Physiology

JF - Journal of Insect Physiology

SN - 0022-1910

ER -