DOI: 10.3354/cr01352
Scopus记录号: 2-s2.0-84958729455
论文题名: Heat wave effects on biomass and vegetative growth of macrophytes after long-term adaptation to different temperatures: A mesocosm study
作者: Cao Y. ; Neif É.M. ; Li W. ; Coppens J. ; Filiz N. ; Lauridsen T.L. ; Davidson T.A. ; Søndergaard M. ; Jeppesen E.
刊名: Climate Research
ISSN: 0936577X
出版年: 2015
卷: 66, 期: 3 起始页码: 265
结束页码: 274
语种: 英语
英文关键词: Elodea canadensis
; Extreme events
; Heat waves
; Potamogeton crispus
Scopus关键词: adaptation
; biomass allocation
; climate effect
; extreme event
; growth rate
; high temperature
; leaf
; macrophyte
; mesocosm
; root
; shoot
; vegetative reproduction
; Elodea canadensis
; Potamogeton crispus
英文摘要: Elevated temperatures and extreme climatic events, such as heat waves, can negatively affect submerged macrophytes. Here, we investigated how submerged macrophytes adapted to 3 different temperatures (ambient, ca. +3°C and ca. +4.5°C) responded to a heat wave. After 10 yr of adaptation, the shoots of 2 species of submerged macrophytes, Elodea canadensis and Potamogeton crispus, were collected from each of the 3 temperature treatments and transferred to 2 heated treatments for 1 mo. The 2 heated treatments were then exposed to a 1 mo heat wave with an additional 5°C temperature increase. For P. crispus, total biomass did not differ among the plants adapted to the different temperatures or between the 2 heated treatments for the duration of the experiment. Plants adapted to the highest temperatures, however, produced a larger number of smaller turions before the heat wave and allocated less biomass to elongation before and after the heat wave. For E. canadensis, the plants adapted to higher temperatures had higher total biomass before and during the heat wave and allocated more biomass to roots and leaves during the heat wave. Most indicators (e.g. length and biomass) of macrophyte performance measured during the experiment did not differ between the 2 heated treatments. In summary, after the 10 yr adaptation to higher temperatures, the submerged macrophytes showed adaptive changes in growth and asexual reproduction and responded in a complex way to the heat wave depending on species, growth status and adaptation temperature. © Inter-Research 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116445
Appears in Collections: 气候减缓与适应
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Recommended Citation:
Cao Y.,Neif É.M.,Li W.,et al. Heat wave effects on biomass and vegetative growth of macrophytes after long-term adaptation to different temperatures: A mesocosm study[J]. Climate Research,2015-01-01,66(3)