ZhangIsabelHuangEtAl2019

Référence

Zhang, S., Isabel, N., Huang, J.-G., Ren, H., Rossi, S. (2019) Responses of bud-break phenology to daily-asymmetric warming: daytime warming intensifies the advancement of bud break. International Journal of Biometeorology, 63(12):1631-1640.

Résumé

There is evidence that the ongoing climate change is happening through nighttime rather than daytime warming. How such a daily-asymmetric warming modifies plant phenology is still unclear. We investigated the effects of asymmetric warming on bud break by daily monitoring seedlings belonging to 26 black spruce {[}Picea mariana (Mill.) BSP.] and 15 balsam fir {[}Abies balsamea (L.) Mill.] provenances from the native range in Canada. Seedlings were subjected to either daytime or nighttime warming in three growth chambers at temperatures ranging between 10 and 24 degrees C. On average, a warming of 4 degrees C advanced the timings of bud break in both species by 2.4 days, with the later phases being more sensitive to the treatment. Bud break of both species responded more strongly to daytime warming, with the bud break occurred 1.2 and 3.2 days earlier under daytime than nighttime warming in black spruce and balsam fir, respectively. A marked ecotypic differentiation was only observed in black spruce that originated from provenances distributed broadly across Canada, with seedlings from the warmest provenance completing bud break 8.3 days later than those from the coldest one. However, no significant effect of provenance was observed for balsam fir, the narrowly distributed species. Overall, the above results suggest that a higher temporal resolution such as temperatures during daytime and nighttime, and higher spatial resolution should be taken into account to improve the accuracy of phenological model predictions under global change scenarios. Phenological models based on daily average temperature should take into account the diverging impacts of asymmetric warming on plant phenology. Our findings may indicate that the influence of warming on plant phenology may be less dramatic than expected.

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@ARTICLE { ZhangIsabelHuangEtAl2019,
    AUTHOR = { Zhang, S. and Isabel, N. and Huang, J.-G. and Ren, H. and Rossi, S. },
    TITLE = { Responses of bud-break phenology to daily-asymmetric warming: daytime warming intensifies the advancement of bud break },
    JOURNAL = { International Journal of Biometeorology },
    YEAR = { 2019 },
    VOLUME = { 63 },
    NUMBER = { 12 },
    PAGES = { 1631-1640 },
    MONTH = { dec },
    ISSN = { 0020-7128 },
    ABSTRACT = { There is evidence that the ongoing climate change is happening through nighttime rather than daytime warming. How such a daily-asymmetric warming modifies plant phenology is still unclear. We investigated the effects of asymmetric warming on bud break by daily monitoring seedlings belonging to 26 black spruce {[}Picea mariana (Mill.) BSP.] and 15 balsam fir {[}Abies balsamea (L.) Mill.] provenances from the native range in Canada. Seedlings were subjected to either daytime or nighttime warming in three growth chambers at temperatures ranging between 10 and 24 degrees C. On average, a warming of 4 degrees C advanced the timings of bud break in both species by 2.4 days, with the later phases being more sensitive to the treatment. Bud break of both species responded more strongly to daytime warming, with the bud break occurred 1.2 and 3.2 days earlier under daytime than nighttime warming in black spruce and balsam fir, respectively. A marked ecotypic differentiation was only observed in black spruce that originated from provenances distributed broadly across Canada, with seedlings from the warmest provenance completing bud break 8.3 days later than those from the coldest one. However, no significant effect of provenance was observed for balsam fir, the narrowly distributed species. Overall, the above results suggest that a higher temporal resolution such as temperatures during daytime and nighttime, and higher spatial resolution should be taken into account to improve the accuracy of phenological model predictions under global change scenarios. Phenological models based on daily average temperature should take into account the diverging impacts of asymmetric warming on plant phenology. Our findings may indicate that the influence of warming on plant phenology may be less dramatic than expected. },
    ADDRESS = { 233 SPRING ST, NEW YORK, NY 10013 USA },
    AFFILIATION = { Huang, JG (Reprint Author), Chinese Acad Sci, Key Lab Vegetat Restorat \& Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China. Huang, JG (Reprint Author), Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Guangzhou 510650, Guangdong, Peoples R China. Huang, JG (Reprint Author), Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China. Zhang, Shaokang; Huang, Jian-Guo; Ren, Hai; Rossi, Sergio, Chinese Acad Sci, Key Lab Vegetat Restorat \& Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China. Zhang, Shaokang; Huang, Jian-Guo; Ren, Hai, Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Guangzhou 510650, Guangdong, Peoples R China. Zhang, Shaokang; Huang, Jian-Guo; Ren, Hai, Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China. Zhang, Shaokang, Univ Chinese Acad Sci, Beijing 100049, Peoples R China. Isabel, Nathalie, Nat Resources Canada, Canadian Forest Serv, Laurentian Forestry Ctr, Quebec City, PQ G1V4C7, Canada. Rossi, Sergio, Univ Quebec Chicoutimi, Dept Sci Fondamentales, Chicoutimi, PQ G7H 2B1, Canada. },
    AUTHOR-EMAIL = { huangjg@scbg.ac.cn },
    DA = { 2020-01-14 },
    DOC-DELIVERY-NUMBER = { JT5AF },
    DOI = { 10.1007/s00484-019-01776-0 },
    EISSN = { 1432-1254 },
    FUNDING-ACKNOWLEDGEMENT = { China Postdoctoral Science FoundationChina Postdoctoral Science Foundation; Natural Resources CanadaNatural Resources CanadaCanadian Forest Service; Consortium de Recherche sur la Foret Boreale Commerciale; China Scholarship CouncilChina Scholarship Council; National Natural Science Foundation of ChinaNational Natural Science Foundation of China {[}31570584, 41661144007, 41861124001]; International Collaborative Key Project of the Chinese Academy of Sciences (CAS) {[}GJHZ1752]; Canada Foundation for InnovationCanada Foundation for Innovation },
    FUNDING-TEXT = { This work was funded by China Postdoctoral Science Foundation funded project, Natural Resources Canada, Consortium de Recherche sur la Foret Boreale Commerciale, Canada Foundation for Innovation, the China Scholarship Council, the National Natural Science Foundation of China (31570584, 41661144007, 41861124001), and the International Collaborative Key Project of the Chinese Academy of Sciences (CAS) (GJHZ1752). },
    JOURNAL-ISO = { Int. J. Biometeorol. },
    KEYWORDS = { Bud burst; Climate change; Phenotype; Ecotype; Black spruce; Balsam fir },
    KEYWORDS-PLUS = { VEGETATION GREEN-UP; CLIMATE-CHANGE; FLOWERING PHENOLOGY; NORTH-AMERICA; TEMPERATURE; PRECIPITATION; BURST; GIBBERELLIN; SENSITIVITY; ADAPTATION },
    LANGUAGE = { English },
    NUMBER-OF-CITED-REFERENCES = { 56 },
    PUBLISHER = { SPRINGER },
    RESEARCH-AREAS = { Biophysics; Environmental Sciences \& Ecology; Meteorology \& Atmospheric Sciences; Physiology },
    TIMES-CITED = { 0 },
    TYPE = { Article },
    UNIQUE-ID = { ISI:000501001500008 },
    USAGE-COUNT-LAST-180-DAYS = { 8 },
    USAGE-COUNT-SINCE-2013 = { 8 },
    WEB-OF-SCIENCE-CATEGORIES = { Biophysics; Environmental Sciences; Meteorology \& Atmospheric Sciences; Physiology },
}

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