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题名: Strong evidence for changing fish reproductive phenology under climate warming on the Tibetan Plateau
作者: Tao, Juan1, 2, 3; He, Dekui1, 4; Kennard, Mark J.3; Ding, Chengzhi5; Bunn, Stuart E.3; Liu, Chunlong1, 2; Jia, Yintao1; Che, Rongxiao6; Chen, Yifeng1, 3
关键词: crossdating ; dendrochronology ; fish ; global climate change ; otolith ; Qinghai-Xizang Plateau ; reproductive phenology
刊名: GLOBAL CHANGE BIOLOGY
发表日期: 2018-05-01
DOI: 10.1111/gcb.14050
卷: 24, 期:5, 页:2093-2104
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biodiversity Conservation ; Ecology ; Environmental Sciences
研究领域[WOS]: Biodiversity & Conservation ; Environmental Sciences & Ecology
英文摘要: Phenological responses to climate change have been widely observed and have profound and lasting effects on ecosystems and biodiversity. However, compared to terrestrial ecosystems, the long-term effects of climate change on species' phenology are poorly understood in aquatic ecosystems. Understanding the long-term changes in fish reproductive phenology is essential for predicting population dynamics and for informing management strategies, but is currently hampered by the requirement for intensive field observations and larval identification. In this study, a very low-frequency sampling of juveniles and adults combined with otolith measurements (long axis length of the first annulus; LAFA) of an endemic Tibetan Plateau fish (Gymnocypris selincuoensis) was used to examine changes in reproductive phenology associated with climate changes from the 1970s to 2000s. Assigning individual fish to their appropriate calendar year class was assisted by dendrochronological methods (crossdating). The results demonstrated that LAFA was significantly and positively associated with temperature and growing season length. To separate the effects of temperature and the growing season length on LAFA growth, measurements of larval otoliths from different sites were conducted and revealed that daily increment additions were the main contributor (46.3%), while temperature contributed less (12.0%). Using constructed water-air temperature relationships and historical air temperature records, we found that the reproductive phenology of G.selincuoensis was strongly advanced in the spring during the 1970s and 1990s, while the increased growing season length in the 2000s was mainly due to a delayed onset of winter. The reproductive phenology of G.selincuoensis advanced 2.9days per decade on average from the 1970s to 2000s, and may have effects on recruitment success and population dynamics of this species and other biota in the ecosystem via the food web. The methods used in this study are applicable for studying reproductive phenological changes across a wide range of species and ecosystems.
关键词[WOS]: NORTH-SEA COD ; TROPHIC MISMATCH ; GYMNOCYPRIS-SELINCUOENSIS ; TERRESTRIAL ECOSYSTEMS ; MARINE ; GROWTH ; TEMPERATURE ; OTOLITHS ; POPULATIONS ; RESPONSES
语种: 英语
项目资助者: Knowledge Innovation Project of the Chinese Academy of Sciences(KSCX2-YW-Z-1023) ; Strategic Priority Research Program - Pan-Third Pole Environment Change Study for Green Silk Road Development of the Chinese Academy of Sciences ; National Natural Science Foundation of China(31372189 ; National Basic Research Program of China(2014FY210700) ; 31572248 ; 41030208)
WOS记录号: WOS:000428879800021
ISSN号: 1354-1013
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/50942
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Griffith Univ, Australian Rivers Inst, Brisbane, Qld, Australia
4.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Mengla, Peoples R China
5.Yunnan Univ, Yunnan Key Lab Int Rivers & Transboundary Ecosecu, Kunming, Yunnan, Peoples R China
6.Griffith Univ, Environm Futures Res Inst, Brisbane, Qld, Australia
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