Greater temperature sensitivity of plant phenology at colder sites: Implications for convergence across northern latitudes

Janet Prevéy; Mark Vellend; Nadja Rüger; Robert D. Hollister; Anne D. Bjorkman; Isla H. Myers-Smith; Sarah C. Elmendorf; Karin Clark; Elisabeth J. Cooper; Bo Elberling; Anna Maria Fosaa; Gregory H.R. Henry; Toke Thomas Høye; Ingibjörg S. Jónsdóttir; Kari Klanderud; Esther Lévesque; Marguerite Mauritz; Ulf Molau; Susan M. Natali; Steven F. Oberbauer; Zoe A. Panchen; Eric Post; Sabine B. Rumpf; Niels M Schmidt; Edward A.G. Schuur; Phillip R. Semenchuk; Tiffany Troxler; Jeffrey M. Welker; Christian Rixen

doi:10.1111/gcb.13619

Greater temperature sensitivity of plant phenology at colder sites: Implications for convergence across northern latitudes

Janet Prevéy^*, Mark Vellend, Nadja Rüger, Robert D. Hollister, Anne D. Bjorkman, Isla H. Myers-Smith, Sarah C. Elmendorf, Karin Clark, Elisabeth J. Cooper, Bo Elberling, Anna Maria Fosaa, Gregory H.R. Henry, Toke Thomas Høye, Ingibjörg S. Jónsdóttir, Kari Klanderud, Esther Lévesque, Marguerite Mauritz, Ulf Molau, Susan M. Natali, Steven F. OberbauerZoe A. Panchen, Eric Post, Sabine B. Rumpf, Niels M Schmidt, Edward A.G. Schuur, Phillip R. Semenchuk, Tiffany Troxler, Jeffrey M. Welker, Christian Rixen

^*Corresponding author af dette arbejde

LUKKET: Geografi

73 Citationer (Scopus)

Abstract

Warmer temperatures are accelerating the phenology of organisms around the world. Temperature sensitivity of phenology might be greater in colder, higher latitude sites than in warmer regions, in part because small changes in temperature constitute greater relative changes in thermal balance at colder sites. To test this hypothesis, we examined up to 20 years of phenology data for 47 tundra plant species at 18 high-latitude sites along a climatic gradient. Across all species, the timing of leaf emergence and flowering was more sensitive to a given increase in summer temperature at colder than warmer high-latitude locations. A similar pattern was seen over time for the flowering phenology of a widespread species, Cassiope tetragona. These are among the first results highlighting differential phenological responses of plants across a climatic gradient and suggest the possibility of convergence in flowering times and therefore an increase in gene flow across latitudes as the climate warms.

Originalsprog	Engelsk
Tidsskrift	Global Change Biology
Vol/bind	23
Udgave nummer	7
Sider (fra-til)	2660-2671
Antal sider	12
ISSN	1354-1013
DOI	https://doi.org/10.1111/gcb.13619
Status	Udgivet - jul. 2017

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Prevéy, J., Vellend, M., Rüger, N., Hollister, R. D., Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Clark, K., Cooper, E. J., Elberling, B., Fosaa, A. M., Henry, G. H. R., Høye, T. T., Jónsdóttir, I. S., Klanderud, K., Lévesque, E., Mauritz, M., Molau, U., Natali, S. M., ... Rixen, C. (2017). Greater temperature sensitivity of plant phenology at colder sites: Implications for convergence across northern latitudes. Global Change Biology, 23(7), 2660-2671. https://doi.org/10.1111/gcb.13619

Prevéy, J, Vellend, M, Rüger, N, Hollister, RD, Bjorkman, AD, Myers-Smith, IH, Elmendorf, SC, Clark, K, Cooper, EJ, Elberling, B, Fosaa, AM, Henry, GHR, Høye, TT, Jónsdóttir, IS, Klanderud, K, Lévesque, E, Mauritz, M, Molau, U, Natali, SM, Oberbauer, SF, Panchen, ZA, Post, E, Rumpf, SB, Schmidt, NM, Schuur, EAG, Semenchuk, PR, Troxler, T, Welker, JM & Rixen, C 2017, 'Greater temperature sensitivity of plant phenology at colder sites: Implications for convergence across northern latitudes', Global Change Biology, bind 23, nr. 7, s. 2660-2671. https://doi.org/10.1111/gcb.13619

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title = "Greater temperature sensitivity of plant phenology at colder sites: Implications for convergence across northern latitudes",

abstract = "Warmer temperatures are accelerating the phenology of organisms around the world. Temperature sensitivity of phenology might be greater in colder, higher latitude sites than in warmer regions, in part because small changes in temperature constitute greater relative changes in thermal balance at colder sites. To test this hypothesis, we examined up to 20 years of phenology data for 47 tundra plant species at 18 high-latitude sites along a climatic gradient. Across all species, the timing of leaf emergence and flowering was more sensitive to a given increase in summer temperature at colder than warmer high-latitude locations. A similar pattern was seen over time for the flowering phenology of a widespread species, Cassiope tetragona. These are among the first results highlighting differential phenological responses of plants across a climatic gradient and suggest the possibility of convergence in flowering times and therefore an increase in gene flow across latitudes as the climate warms.",

keywords = "Cassiope tetragona, Arctic, Climate change, Climatic gradient, Flowering, International Tundra Experiment, Latitude, Tundra",

author = "Janet Prev{\'e}y and Mark Vellend and Nadja R{\"u}ger and Hollister, {Robert D.} and Bjorkman, {Anne D.} and Myers-Smith, {Isla H.} and Elmendorf, {Sarah C.} and Karin Clark and Cooper, {Elisabeth J.} and Bo Elberling and Fosaa, {Anna Maria} and Henry, {Gregory H.R.} and H{\o}ye, {Toke Thomas} and J{\'o}nsd{\'o}ttir, {Ingibj{\"o}rg S.} and Kari Klanderud and Esther L{\'e}vesque and Marguerite Mauritz and Ulf Molau and Natali, {Susan M.} and Oberbauer, {Steven F.} and Panchen, {Zoe A.} and Eric Post and Rumpf, {Sabine B.} and Schmidt, {Niels M} and Schuur, {Edward A.G.} and Semenchuk, {Phillip R.} and Tiffany Troxler and Welker, {Jeffrey M.} and Christian Rixen",

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T1 - Greater temperature sensitivity of plant phenology at colder sites

T2 - Implications for convergence across northern latitudes

AU - Prevéy, Janet

AU - Vellend, Mark

AU - Rüger, Nadja

AU - Hollister, Robert D.

AU - Bjorkman, Anne D.

AU - Myers-Smith, Isla H.

AU - Elmendorf, Sarah C.

AU - Clark, Karin

AU - Cooper, Elisabeth J.

AU - Elberling, Bo

AU - Fosaa, Anna Maria

AU - Henry, Gregory H.R.

AU - Høye, Toke Thomas

AU - Jónsdóttir, Ingibjörg S.

AU - Klanderud, Kari

AU - Lévesque, Esther

AU - Mauritz, Marguerite

AU - Molau, Ulf

AU - Natali, Susan M.

AU - Oberbauer, Steven F.

AU - Panchen, Zoe A.

AU - Post, Eric

AU - Rumpf, Sabine B.

AU - Schmidt, Niels M

AU - Schuur, Edward A.G.

AU - Semenchuk, Phillip R.

AU - Troxler, Tiffany

AU - Welker, Jeffrey M.

AU - Rixen, Christian

N1 - CENPERM[2017]

PY - 2017/7

Y1 - 2017/7

N2 - Warmer temperatures are accelerating the phenology of organisms around the world. Temperature sensitivity of phenology might be greater in colder, higher latitude sites than in warmer regions, in part because small changes in temperature constitute greater relative changes in thermal balance at colder sites. To test this hypothesis, we examined up to 20 years of phenology data for 47 tundra plant species at 18 high-latitude sites along a climatic gradient. Across all species, the timing of leaf emergence and flowering was more sensitive to a given increase in summer temperature at colder than warmer high-latitude locations. A similar pattern was seen over time for the flowering phenology of a widespread species, Cassiope tetragona. These are among the first results highlighting differential phenological responses of plants across a climatic gradient and suggest the possibility of convergence in flowering times and therefore an increase in gene flow across latitudes as the climate warms.

AB - Warmer temperatures are accelerating the phenology of organisms around the world. Temperature sensitivity of phenology might be greater in colder, higher latitude sites than in warmer regions, in part because small changes in temperature constitute greater relative changes in thermal balance at colder sites. To test this hypothesis, we examined up to 20 years of phenology data for 47 tundra plant species at 18 high-latitude sites along a climatic gradient. Across all species, the timing of leaf emergence and flowering was more sensitive to a given increase in summer temperature at colder than warmer high-latitude locations. A similar pattern was seen over time for the flowering phenology of a widespread species, Cassiope tetragona. These are among the first results highlighting differential phenological responses of plants across a climatic gradient and suggest the possibility of convergence in flowering times and therefore an increase in gene flow across latitudes as the climate warms.

KW - Cassiope tetragona

KW - Arctic

KW - Climate change

KW - Climatic gradient

KW - Flowering

KW - International Tundra Experiment

KW - Latitude

KW - Tundra

U2 - 10.1111/gcb.13619

DO - 10.1111/gcb.13619

M3 - Journal article

C2 - 28079308

AN - SCOPUS:85012068022

SN - 1354-1013

VL - 23

SP - 2660

EP - 2671

JO - Global Change Biology

JF - Global Change Biology

IS - 7

ER -

Greater temperature sensitivity of plant phenology at colder sites: Implications for convergence across northern latitudes

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