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Does Climate Warming Favour Early Season Species?

Plant species that start early in spring are generally more responsive to rising temperatures, raising concerns that climate warming may favour early season species and result in altered interspecific interactions and community structure and composition. This hypothesis is based on changes in spring...

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Autores principales: Chu, Xiuli, Man, Rongzhou, Zhang, Haicheng, Yuan, Wenping, Tao, Jing, Dang, Qing-Lai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8639222/
https://www.ncbi.nlm.nih.gov/pubmed/34868164
http://dx.doi.org/10.3389/fpls.2021.765351
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author Chu, Xiuli
Man, Rongzhou
Zhang, Haicheng
Yuan, Wenping
Tao, Jing
Dang, Qing-Lai
author_facet Chu, Xiuli
Man, Rongzhou
Zhang, Haicheng
Yuan, Wenping
Tao, Jing
Dang, Qing-Lai
author_sort Chu, Xiuli
collection PubMed
description Plant species that start early in spring are generally more responsive to rising temperatures, raising concerns that climate warming may favour early season species and result in altered interspecific interactions and community structure and composition. This hypothesis is based on changes in spring phenology and therefore active growing season length, which would not be indicative of possible changes in growth as would changes in cumulative forcing temperatures (growing degree days/hours) in the Northern Hemisphere. In this study we analysed the effects of a moderate climate warming (2°C warmer than the 1981–2010 baseline) on the leaf-out of hypothetical species without chilling restriction and actual plant species with different chilling and forcing requirements in different parts of the globe. In both cases, early season species had larger phenological shifts due to low leaf-out temperatures, but accumulated fewer forcing gains (changes in cumulative forcing temperatures by warming) from those shifts because of their early spring phenology. Leaf-out time was closely associated with leaf-out temperatures and therefore plant phenological responses to climate warming. All plant species would be equally affected by climate warming in terms of total forcing gains added from higher temperatures when forcing gains occurring between early and late season species are included. Our findings will improve the understanding of possible mechanisms and consequences of differential responses in plant phenology to climate warming.
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spelling pubmed-86392222021-12-03 Does Climate Warming Favour Early Season Species? Chu, Xiuli Man, Rongzhou Zhang, Haicheng Yuan, Wenping Tao, Jing Dang, Qing-Lai Front Plant Sci Plant Science Plant species that start early in spring are generally more responsive to rising temperatures, raising concerns that climate warming may favour early season species and result in altered interspecific interactions and community structure and composition. This hypothesis is based on changes in spring phenology and therefore active growing season length, which would not be indicative of possible changes in growth as would changes in cumulative forcing temperatures (growing degree days/hours) in the Northern Hemisphere. In this study we analysed the effects of a moderate climate warming (2°C warmer than the 1981–2010 baseline) on the leaf-out of hypothetical species without chilling restriction and actual plant species with different chilling and forcing requirements in different parts of the globe. In both cases, early season species had larger phenological shifts due to low leaf-out temperatures, but accumulated fewer forcing gains (changes in cumulative forcing temperatures by warming) from those shifts because of their early spring phenology. Leaf-out time was closely associated with leaf-out temperatures and therefore plant phenological responses to climate warming. All plant species would be equally affected by climate warming in terms of total forcing gains added from higher temperatures when forcing gains occurring between early and late season species are included. Our findings will improve the understanding of possible mechanisms and consequences of differential responses in plant phenology to climate warming. Frontiers Media S.A. 2021-11-18 /pmc/articles/PMC8639222/ /pubmed/34868164 http://dx.doi.org/10.3389/fpls.2021.765351 Text en Copyright © 2021 Chu, Man, Zhang, Yuan, Tao and Dang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Chu, Xiuli
Man, Rongzhou
Zhang, Haicheng
Yuan, Wenping
Tao, Jing
Dang, Qing-Lai
Does Climate Warming Favour Early Season Species?
title Does Climate Warming Favour Early Season Species?
title_full Does Climate Warming Favour Early Season Species?
title_fullStr Does Climate Warming Favour Early Season Species?
title_full_unstemmed Does Climate Warming Favour Early Season Species?
title_short Does Climate Warming Favour Early Season Species?
title_sort does climate warming favour early season species?
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8639222/
https://www.ncbi.nlm.nih.gov/pubmed/34868164
http://dx.doi.org/10.3389/fpls.2021.765351
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