Herbarium specimens show contrasting phenological responses to Himalayan climate
Hart, Robbie1,2; Salick, Jan2; Ranjitkar, Sailesh3,4; Xu, Jianchu3,4; Hart, R (reprint author), Univ Missouri, Dept Biol, 8001 Nat Bridge Rd, St Louis, MO 63121 USA.; robbie.hart@mobot.org
2014-07-22
发表期刊PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
卷号111期号:29页码:10615-10619
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摘要Responses by flowering plants to climate change are complex and only beginning to be understood. Through analyses of 10,295 herbarium specimens of Himalayan Rhododendron collected by plant hunters and botanists since 1884, we were able to separate these responses into significant components. We found a lack of directional change in mean flowering time over the past 45 y of rapid warming. However, over the full 125 y of collections, mean flowering time shows a significant response to year-to-year changes in temperature, and this response varies with season of warming. Mean flowering advances with annual warming (2.27 d earlier per 1 degrees C warming), and also is delayed with fall warming (2.54 d later per 1 degrees C warming). Annual warming may advance flowering through positive effects on overwintering bud formation, whereas fall warming may delay flowering through an impact on chilling requirements. The lack of a directional response suggests that contrasting phenological responses to temperature changes may obscure temperature sensitivity in plants. By drawing on large collections from multiple herbaria, made over more than a century, we show how these data may inform studies even of remote localities, and we highlight the increasing value of these and other natural history collections in understanding long-term change.
关键词Phenology Global Warming
资助信息Biodiversity Conservation and Sustainable Development in Southwest China United States National Science Foundation-Integrative Graduate Education and Research Traineeship [DGE 0549369]; National Key Basic Research Program of China [2014CB954100]; Whitney R. Harris World Ecology Center; National Science Foundation China [31270524]
学科领域Multidisciplinary Sciences
DOI10.1073/pnas.1403376111
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000339310700055
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被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/18301
专题资源植物与生物技术所级重点实验室
通讯作者Hart, R (reprint author), Univ Missouri, Dept Biol, 8001 Nat Bridge Rd, St Louis, MO 63121 USA.; robbie.hart@mobot.org
作者单位1.Univ Missouri, Dept Biol, St Louis, MO 63121 USA
2.Missouri Bot Garden, William L Brown Ctr, St Louis, MO 63166 USA
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650204, Peoples R China
4.World Agroforestry Ctr, Kunming 650204, Peoples R China
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Hart, Robbie,Salick, Jan,Ranjitkar, Sailesh,et al. Herbarium specimens show contrasting phenological responses to Himalayan climate[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2014,111(29):10615-10619.
APA Hart, Robbie,Salick, Jan,Ranjitkar, Sailesh,Xu, Jianchu,Hart, R ,&robbie.hart@mobot.org.(2014).Herbarium specimens show contrasting phenological responses to Himalayan climate.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,111(29),10615-10619.
MLA Hart, Robbie,et al."Herbarium specimens show contrasting phenological responses to Himalayan climate".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 111.29(2014):10615-10619.
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