Temperature responses in a subarctic springtail from two geothermally warmed habitats

Dmitry Kutcherov, Stine Slotsbo, Bjarni D. Sigurdsson, Niki I.W. Leblans, Matty P. Berg, Jacintha Ellers, Janine Mariën, Martin Holmstrup

Research output

Abstract

Common-garden experiments with populations sampled along natural thermal gradients help to reveal local adaptation, disentangle environmental and genetic effects, and ultimately predict, by analogy, future biotic responses to climate change. In this regard, geothermal habitats are useful model systems as they exhibit dramatic changes in soil temperature. The springtail Protaphorura pseudovanderdrifti has apparently coped with such local geothermal warming in Iceland, as this species occurs along a more than half-century-old geothermal gradient in a grassland and persists along a newly emerged temperature gradient in a previously non-geothermal planted spruce forest. We measured thermal reaction norms for development and walking speed and acute cold shock tolerance of P. pseudovanderdrifti originating from the grassland and forest geothermal gradients. Temperature-dependent juvenile development showed little variation among subpopulations from the recently warmed forest, probably due to insufficient evolutionary time, but springtails from the warmed grassland plots had significantly steeper reaction norms than their counterparts from the corresponding unwarmed plot. In contrast, cold tolerance and locomotory activity showed no conclusive clinal pattern despite significant within-habitat variation. There appeared to be significant differences between habitats, as springtails from the forest had more temperature-sensitive developmental rate and locomotory activity, walked faster, and exhibited more variable cold tolerance than grassland springtails did. The planting of a forest, therefore, seems to have exerted a stronger effect on the thermal phenotype of P. pseudovanderdrifti than the emergence of a geothermal gradient. Thus, habitat properties may be no less important in shaping thermal reaction norms than the mean temperature. These local-scale findings suggest that, in addition to warming per se, global transformation of communities may drive the evolution of thermal phenotypes to an extent comparable with the effect of rising environmental temperature.
Original languageEnglish
Article number150606
JournalPedobiologia
Volume78
Early online date23 Nov 2019
DOIs
Publication statusPublished - Jan 2020

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Collembola
reaction norm
geothermal gradient
grasslands
grassland
habitat
heat
habitats
cold tolerance
temperature
temperature profiles
phenotype
warming
local adaptation
Iceland
cold stress
walking
subpopulation
environmental effect
temperature gradient

Cite this

Kutcherov, D., Slotsbo, S., Sigurdsson, B. D., Leblans, N. I. W., Berg, M. P., Ellers, J., ... Holmstrup, M. (2020). Temperature responses in a subarctic springtail from two geothermally warmed habitats. Pedobiologia, 78, [150606]. https://doi.org/10.1016/j.pedobi.2019.150606
Kutcherov, Dmitry ; Slotsbo, Stine ; Sigurdsson, Bjarni D. ; Leblans, Niki I.W. ; Berg, Matty P. ; Ellers, Jacintha ; Mariën, Janine ; Holmstrup, Martin. / Temperature responses in a subarctic springtail from two geothermally warmed habitats. In: Pedobiologia. 2020 ; Vol. 78.
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abstract = "Common-garden experiments with populations sampled along natural thermal gradients help to reveal local adaptation, disentangle environmental and genetic effects, and ultimately predict, by analogy, future biotic responses to climate change. In this regard, geothermal habitats are useful model systems as they exhibit dramatic changes in soil temperature. The springtail Protaphorura pseudovanderdrifti has apparently coped with such local geothermal warming in Iceland, as this species occurs along a more than half-century-old geothermal gradient in a grassland and persists along a newly emerged temperature gradient in a previously non-geothermal planted spruce forest. We measured thermal reaction norms for development and walking speed and acute cold shock tolerance of P. pseudovanderdrifti originating from the grassland and forest geothermal gradients. Temperature-dependent juvenile development showed little variation among subpopulations from the recently warmed forest, probably due to insufficient evolutionary time, but springtails from the warmed grassland plots had significantly steeper reaction norms than their counterparts from the corresponding unwarmed plot. In contrast, cold tolerance and locomotory activity showed no conclusive clinal pattern despite significant within-habitat variation. There appeared to be significant differences between habitats, as springtails from the forest had more temperature-sensitive developmental rate and locomotory activity, walked faster, and exhibited more variable cold tolerance than grassland springtails did. The planting of a forest, therefore, seems to have exerted a stronger effect on the thermal phenotype of P. pseudovanderdrifti than the emergence of a geothermal gradient. Thus, habitat properties may be no less important in shaping thermal reaction norms than the mean temperature. These local-scale findings suggest that, in addition to warming per se, global transformation of communities may drive the evolution of thermal phenotypes to an extent comparable with the effect of rising environmental temperature.",
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author = "Dmitry Kutcherov and Stine Slotsbo and Sigurdsson, {Bjarni D.} and Leblans, {Niki I.W.} and Berg, {Matty P.} and Jacintha Ellers and Janine Mari{\"e}n and Martin Holmstrup",
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Kutcherov, D, Slotsbo, S, Sigurdsson, BD, Leblans, NIW, Berg, MP, Ellers, J, Mariën, J & Holmstrup, M 2020, 'Temperature responses in a subarctic springtail from two geothermally warmed habitats', Pedobiologia, vol. 78, 150606. https://doi.org/10.1016/j.pedobi.2019.150606

Temperature responses in a subarctic springtail from two geothermally warmed habitats. / Kutcherov, Dmitry ; Slotsbo, Stine; Sigurdsson, Bjarni D.; Leblans, Niki I.W.; Berg, Matty P.; Ellers, Jacintha; Mariën, Janine; Holmstrup, Martin.

In: Pedobiologia, Vol. 78, 150606, 01.2020.

Research output

TY - JOUR

T1 - Temperature responses in a subarctic springtail from two geothermally warmed habitats

AU - Kutcherov, Dmitry

AU - Slotsbo, Stine

AU - Sigurdsson, Bjarni D.

AU - Leblans, Niki I.W.

AU - Berg, Matty P.

AU - Ellers, Jacintha

AU - Mariën, Janine

AU - Holmstrup, Martin

PY - 2020/1

Y1 - 2020/1

N2 - Common-garden experiments with populations sampled along natural thermal gradients help to reveal local adaptation, disentangle environmental and genetic effects, and ultimately predict, by analogy, future biotic responses to climate change. In this regard, geothermal habitats are useful model systems as they exhibit dramatic changes in soil temperature. The springtail Protaphorura pseudovanderdrifti has apparently coped with such local geothermal warming in Iceland, as this species occurs along a more than half-century-old geothermal gradient in a grassland and persists along a newly emerged temperature gradient in a previously non-geothermal planted spruce forest. We measured thermal reaction norms for development and walking speed and acute cold shock tolerance of P. pseudovanderdrifti originating from the grassland and forest geothermal gradients. Temperature-dependent juvenile development showed little variation among subpopulations from the recently warmed forest, probably due to insufficient evolutionary time, but springtails from the warmed grassland plots had significantly steeper reaction norms than their counterparts from the corresponding unwarmed plot. In contrast, cold tolerance and locomotory activity showed no conclusive clinal pattern despite significant within-habitat variation. There appeared to be significant differences between habitats, as springtails from the forest had more temperature-sensitive developmental rate and locomotory activity, walked faster, and exhibited more variable cold tolerance than grassland springtails did. The planting of a forest, therefore, seems to have exerted a stronger effect on the thermal phenotype of P. pseudovanderdrifti than the emergence of a geothermal gradient. Thus, habitat properties may be no less important in shaping thermal reaction norms than the mean temperature. These local-scale findings suggest that, in addition to warming per se, global transformation of communities may drive the evolution of thermal phenotypes to an extent comparable with the effect of rising environmental temperature.

AB - Common-garden experiments with populations sampled along natural thermal gradients help to reveal local adaptation, disentangle environmental and genetic effects, and ultimately predict, by analogy, future biotic responses to climate change. In this regard, geothermal habitats are useful model systems as they exhibit dramatic changes in soil temperature. The springtail Protaphorura pseudovanderdrifti has apparently coped with such local geothermal warming in Iceland, as this species occurs along a more than half-century-old geothermal gradient in a grassland and persists along a newly emerged temperature gradient in a previously non-geothermal planted spruce forest. We measured thermal reaction norms for development and walking speed and acute cold shock tolerance of P. pseudovanderdrifti originating from the grassland and forest geothermal gradients. Temperature-dependent juvenile development showed little variation among subpopulations from the recently warmed forest, probably due to insufficient evolutionary time, but springtails from the warmed grassland plots had significantly steeper reaction norms than their counterparts from the corresponding unwarmed plot. In contrast, cold tolerance and locomotory activity showed no conclusive clinal pattern despite significant within-habitat variation. There appeared to be significant differences between habitats, as springtails from the forest had more temperature-sensitive developmental rate and locomotory activity, walked faster, and exhibited more variable cold tolerance than grassland springtails did. The planting of a forest, therefore, seems to have exerted a stronger effect on the thermal phenotype of P. pseudovanderdrifti than the emergence of a geothermal gradient. Thus, habitat properties may be no less important in shaping thermal reaction norms than the mean temperature. These local-scale findings suggest that, in addition to warming per se, global transformation of communities may drive the evolution of thermal phenotypes to an extent comparable with the effect of rising environmental temperature.

KW - development

KW - Geothermal habitat

KW - Locomotion

KW - Reaction norm

KW - plasticity

KW - Thermal adaptation

U2 - 10.1016/j.pedobi.2019.150606

DO - 10.1016/j.pedobi.2019.150606

M3 - Article

VL - 78

JO - Pedobiologia

JF - Pedobiologia

SN - 0031-4056

M1 - 150606

ER -