Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin

Eriophorum vaginatum is a tussock‐forming sedge that contributes significantly to the structure and primary productivity of moist acidic tussock tundra. Locally adapted populations (ecotypes) have been identified across the geographical distribution of E. vaginatum; however, little is known about ho...

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Published in:Ecology and Evolution
Main Authors: Parker, Thomas C., Tang, Jianwu, Clark, Mahalia B., Moody, Michael M., Fetcher, Ned
Format: Text
Language:English
Published: John Wiley and Sons Inc. 2017
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696421/
https://doi.org/10.1002/ece3.3445
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spelling ftpubmed:oai:pubmedcentral.nih.gov:5696421 2023-05-15T14:55:54+02:00 Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin Parker, Thomas C. Tang, Jianwu Clark, Mahalia B. Moody, Michael M. Fetcher, Ned 2017-10-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696421/ https://doi.org/10.1002/ece3.3445 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696421/ http://dx.doi.org/10.1002/ece3.3445 © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Original Research Text 2017 ftpubmed https://doi.org/10.1002/ece3.3445 2017-12-03T01:30:45Z Eriophorum vaginatum is a tussock‐forming sedge that contributes significantly to the structure and primary productivity of moist acidic tussock tundra. Locally adapted populations (ecotypes) have been identified across the geographical distribution of E. vaginatum; however, little is known about how their growth and phenology differ over the course of a growing season. The growing season is short in the Arctic and therefore exerts a strong selection pressure on tundra species. This raises the hypothesis that the phenology of arctic species may be poorly adapted if the timing and length of the growing season change. Mature E. vaginatum tussocks from across a latitudinal gradient (65–70°N) were transplanted into a common garden at a central location (Toolik Lake, 68°38′N, 149°36′W) where half were warmed using open‐top chambers. Over two growing seasons (2015 and 2016), leaf length was measured weekly to track growth rates, timing of senescence, and biomass accumulation. Growth rates were similar across ecotypes and between years and were not affected by warming. However, southern populations accumulated significantly more biomass, largely because they started to senesce later. In 2016, peak biomass and senescence of most populations occurred later than in 2015, probably induced by colder weather at the beginning of the growing season in 2016, which caused a delayed start to growth. The finish was delayed as well. Differences in phenology between populations were largely retained between years, suggesting that the amount of time that these ecotypes grow has been selected by the length of the growing seasons at their respective home sites. As potential growing seasons lengthen, E. vaginatum may be unable to respond appropriately as a result of genetic control and may have reduced fitness in the rapidly warming Arctic tundra. Text Arctic Eriophorum Tundra PubMed Central (PMC) Arctic Ecology and Evolution 7 22 9775 9786
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Original Research
spellingShingle Original Research
Parker, Thomas C.
Tang, Jianwu
Clark, Mahalia B.
Moody, Michael M.
Fetcher, Ned
Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin
topic_facet Original Research
description Eriophorum vaginatum is a tussock‐forming sedge that contributes significantly to the structure and primary productivity of moist acidic tussock tundra. Locally adapted populations (ecotypes) have been identified across the geographical distribution of E. vaginatum; however, little is known about how their growth and phenology differ over the course of a growing season. The growing season is short in the Arctic and therefore exerts a strong selection pressure on tundra species. This raises the hypothesis that the phenology of arctic species may be poorly adapted if the timing and length of the growing season change. Mature E. vaginatum tussocks from across a latitudinal gradient (65–70°N) were transplanted into a common garden at a central location (Toolik Lake, 68°38′N, 149°36′W) where half were warmed using open‐top chambers. Over two growing seasons (2015 and 2016), leaf length was measured weekly to track growth rates, timing of senescence, and biomass accumulation. Growth rates were similar across ecotypes and between years and were not affected by warming. However, southern populations accumulated significantly more biomass, largely because they started to senesce later. In 2016, peak biomass and senescence of most populations occurred later than in 2015, probably induced by colder weather at the beginning of the growing season in 2016, which caused a delayed start to growth. The finish was delayed as well. Differences in phenology between populations were largely retained between years, suggesting that the amount of time that these ecotypes grow has been selected by the length of the growing seasons at their respective home sites. As potential growing seasons lengthen, E. vaginatum may be unable to respond appropriately as a result of genetic control and may have reduced fitness in the rapidly warming Arctic tundra.
format Text
author Parker, Thomas C.
Tang, Jianwu
Clark, Mahalia B.
Moody, Michael M.
Fetcher, Ned
author_facet Parker, Thomas C.
Tang, Jianwu
Clark, Mahalia B.
Moody, Michael M.
Fetcher, Ned
author_sort Parker, Thomas C.
title Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin
title_short Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin
title_full Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin
title_fullStr Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin
title_full_unstemmed Ecotypic differences in the phenology of the tundra species Eriophorum vaginatum reflect sites of origin
title_sort ecotypic differences in the phenology of the tundra species eriophorum vaginatum reflect sites of origin
publisher John Wiley and Sons Inc.
publishDate 2017
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696421/
https://doi.org/10.1002/ece3.3445
geographic Arctic
geographic_facet Arctic
genre Arctic
Eriophorum
Tundra
genre_facet Arctic
Eriophorum
Tundra
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5696421/
http://dx.doi.org/10.1002/ece3.3445
op_rights © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.
This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
op_rightsnorm CC-BY
op_doi https://doi.org/10.1002/ece3.3445
container_title Ecology and Evolution
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container_issue 22
container_start_page 9775
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