globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13405
论文题名:
Climate warming and heat waves affect reproductive strategies and interactions between submerged macrophytes
作者: Li Z.; He L.; Zhang H.; Urrutia-Cordero P.; Ekvall M.K.; Hollander J.; Hansson L.-A.
刊名: Global Change Biology
出版年: 2017
卷: 23, 期:1
起始页码: 108
结束页码: 116
语种: 英语
英文关键词: aquatic systems ; climate change ; community dynamic ; heat waves ; sexual reproduction ; submerged macrophytes
Scopus关键词: adaptive management ; aquatic ecosystem ; climate change ; community dynamics ; heat wave ; macrophyte ; sexual reproduction ; warming ; algae
英文摘要: Extreme climatic events, such as heat waves, are predicted to increase in frequency and intensity during the next hundred years, which may accelerate shifts in hydrological regimes and submerged macrophyte composition in freshwater ecosystems. Since macrophytes are profound components of aquatic systems, predicting their response to extreme climatic events is crucial for implementation of climate change adaptation strategies. We therefore performed an experiment in 24 outdoor enclosures (400 L) separating the impact of a 4 °C increase in mean temperature with the same increase, that is the same total amount of energy input, but resembling a climate scenario with extreme variability, oscillating between 0 °C and 8 °C above present conditions. We show that at the moderate nutrient conditions provided in our study, neither an increase in mean temperature nor heat waves lead to a shift from a plant-dominated to an algal-dominated system. Instead, we show that species-specific responses to climate change among submerged macrophytes may critically influence species composition and thereby ecosystem functioning. Our results also imply that more fluctuating temperatures affect the number of flowers produced per plant leading to less sexual reproduction. Our findings therefore suggest that predicted alterations in climate regimes may influence both plant interactions and reproductive strategies, which have the potential to inflict changes in biodiversity, community structure and ecosystem functioning. © 2016 John Wiley & Sons Ltd
资助项目: Hansson, L.-A. ; Department of Biology/Aquatic Ecology, Lund University, Sölvegatan 37, Sweden ; 电子邮件: lars-anders.hansson@biol.lu.se
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61202
Appears in Collections:影响、适应和脆弱性

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作者单位: Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resource and Environment, Hubei University, Wuhan, China; Department of Biology/Aquatic Ecology, Lund University, Sölvegatan 37, Lund, Sweden; Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Chinese Academy of Science, Wuhan, China; School of Resources, Environmental & Chemical Engineering and Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education, Nanchang University, Nanchang, China; Center for Environmental and Climate Research, Lund University, Ecology Building, Lund, Sweden

Recommended Citation:
Li Z.,He L.,Zhang H.,et al. Climate warming and heat waves affect reproductive strategies and interactions between submerged macrophytes[J]. Global Change Biology,2017-01-01,23(1)
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