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Climate change impacts flowering phenology in Gongga Mountains,Southwest China

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Climate change impacts flowering phenology in Gongga Mountains,Southwest China
Flowering phenology of plants,which is important for reproductive growth,has been shown to be influenced by climate change.Understanding how flowering phenology responds to climate change and exploring the variation of this response across plant groups can help predict structural and functional changes in plant communities in response to ongoing climate change.Here,we used long-term collec-tions of 33 flowering plant species from the Gongga Mountains(Mt.Gongga hereafter),a biodiversity hotspot,to investigate how plant flowering phenology changed over the past 70 years in response to climate change.We found that mean flowering times in Mt.Gongga were delayed in all vegetation types and elevations over the last 70 years.Furthermore,flowering time was delayed more in lowlands than at high elevations.Interestingly,we observed that spring-flowering plants show earlier flowering times whereas summer/autumn plants show delayed flowering times.Non-synchronous flowering phenology across species was mainly driven by changes in temperature and precipitation.We also found that the flowering phenology of 78.8％plant species was delayed in response to warming temperatures.Our findings also indicate that the magnitude and direction of variation in plant flowering times vary significantly among species along elevation gradients.Shifts in flowering time might cause trophic mismatches with co-occurring and related species,affecting both forest ecosystem structure and function.

Changes in flowering phenologyElevationFunctional traitMountainsPlant communities

Kuiling Zu、Fusheng Chen、Yaoqi Li、Nawal Shrestha、Xiangmin Fang、Shahid Ahmad、Ghulam Nabi、Zhiheng Wang

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Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed,College of Forestry,Jiangxi Agricultural University,Nanchang 330045,Jiangxi,China

Institute of Ecology,Key Laboratory for Earth Surface Processes of the Ministry of Education,College of Urban and Environmental Sciences,Peking University,Beijing 100871,China

Department of Health and Environmental Sciences,Xi'an Jiaotong-Liverpool University,Suzhou 215123,Jiangsu,China

State Key Laboratory of Grassland Agro-Ecosystems,College of Ecology,Lanzhou University,Lanzhou 730000,Gansu,China

School of Ecology and Environment,Hainan University,Haikou 570228,Hainan,China

Institute of Nature Conservation,Polish Academy of Sciences,Krakow,Poland

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Changes in flowering phenology Elevation Functional trait Mountains Plant communities

2024

10.1016/j.pld.2023.07.007

植物多样性(英文)
中国科学院昆明植物研究所，中国植物学会

植物多样性(英文)

CSTPCD
影响因子：0.617
ISSN：2096-2703
年,卷(期)：2024.46(6)