TY - JOUR
T1 - Experimental warming differentially affects vegetative and reproductive phenology of tundra plants
AU - Collins, Courtney G.
AU - Elmendorf, Sarah C.
AU - Hollister, Robert D.
AU - Henry, Greg H.R.
AU - Clark, Karin
AU - Bjorkman, Anne D.
AU - Myers-Smith, Isla H.
AU - Prevéy, Janet S.
AU - Ashton, Isabel W.
AU - Assmann, Jakob J.
AU - Alatalo, Juha M.
AU - Carbognani, Michele
AU - Chisholm, Chelsea
AU - Cooper, Elisabeth J.
AU - Forrester, Chiara
AU - Jónsdóttir, Ingibjörg Svala
AU - Klanderud, Kari
AU - Kopp, Christopher W.
AU - Livensperger, Carolyn
AU - Mauritz, Marguerite
AU - May, Jeremy L.
AU - Molau, Ulf
AU - Oberbauer, Steven F.
AU - Ogburn, Emily
AU - Panchen, Zoe A.
AU - Petraglia, Alessandro
AU - Post, Eric
AU - Rixen, Christian
AU - Rodenhizer, Heidi
AU - Schuur, Edward A.G.
AU - Semenchuk, Philipp
AU - Smith, Jane G.
AU - Steltzer, Heidi
AU - Totland, Ørjan
AU - Walker, Marilyn D.
AU - Welker, Jeffrey M.
AU - Suding, Katharine N.
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Rapid climate warming is altering Arctic and alpine tundra ecosystem structure and function, including shifts in plant phenology. While the advancement of green up and flowering are well-documented, it remains unclear whether all phenophases, particularly those later in the season, will shift in unison or respond divergently to warming. Here, we present the largest synthesis to our knowledge of experimental warming effects on tundra plant phenology from the International Tundra Experiment. We examine the effect of warming on a suite of season-wide plant phenophases. Results challenge the expectation that all phenophases will advance in unison to warming. Instead, we find that experimental warming caused: (1) larger phenological shifts in reproductive versus vegetative phenophases and (2) advanced reproductive phenophases and green up but delayed leaf senescence which translated to a lengthening of the growing season by approximately 3%. Patterns were consistent across sites, plant species and over time. The advancement of reproductive seasons and lengthening of growing seasons may have significant consequences for trophic interactions and ecosystem function across the tundra.
AB - Rapid climate warming is altering Arctic and alpine tundra ecosystem structure and function, including shifts in plant phenology. While the advancement of green up and flowering are well-documented, it remains unclear whether all phenophases, particularly those later in the season, will shift in unison or respond divergently to warming. Here, we present the largest synthesis to our knowledge of experimental warming effects on tundra plant phenology from the International Tundra Experiment. We examine the effect of warming on a suite of season-wide plant phenophases. Results challenge the expectation that all phenophases will advance in unison to warming. Instead, we find that experimental warming caused: (1) larger phenological shifts in reproductive versus vegetative phenophases and (2) advanced reproductive phenophases and green up but delayed leaf senescence which translated to a lengthening of the growing season by approximately 3%. Patterns were consistent across sites, plant species and over time. The advancement of reproductive seasons and lengthening of growing seasons may have significant consequences for trophic interactions and ecosystem function across the tundra.
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U2 - 10.1038/s41467-021-23841-2
DO - 10.1038/s41467-021-23841-2
M3 - Article
C2 - 34117253
AN - SCOPUS:85107816540
SN - 2041-1723
VL - 12
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 3442
ER -