DOI: 10.1002/gbc.20042
Scopus记录号: 2-s2.0-84878008062
论文题名: Winners and losers: Ecological and biogeochemical changes in a warming ocean
作者: Dutkiewicz S ; , Scott J ; R ; , Follows M ; J
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2013
卷: 27, 期: 2 起始页码: 463
结束页码: 477
语种: 英语
英文关键词: biogeochemistry
; climate change
; ecology
; numerical model
Scopus关键词: Available nutrients
; Earth system model of intermediate complexity
; Ecological scale
; Light environment
; Phytoplankton community
; Productivity changes
; Regional pattern
; Theoretical framework
; Biogeochemistry
; Climate change
; Ecology
; Numerical models
; Phytoplankton
; Productivity
; Nutrients
; biogeochemistry
; climate change
; community composition
; ecosystem modeling
; functional group
; marine ecosystem
; metabolism
; numerical model
; nutrient limitation
; phytoplankton
; turnover
; warming
英文摘要: We employ a marine ecosystem model, with diverse and flexible phytoplankton communities, coupled to an Earth system model of intermediate complexity to explore mechanisms that will alter the biogeography and productivity of phytoplankton populations in a warming world. Simple theoretical frameworks and sensitivity experiments reveal that ecological and biogeochemical changes are driven by a balance between two impacts of a warming climate: higher metabolic rates (the "direct" effect), and changes in the supply of limiting nutrients and altered light environments (the "indirect" effect). On globally integrated productivity, the two effects compensate to a large degree. Regionally, the competition between effects is more complicated; patterns of productivity changes are different between high and low latitudes and are also regulated by how the supply of the limiting nutrient changes. These complex regional patterns are also found in the changes to broad phytoplankton functional groups. On the finer ecological scale of diversity within functional groups, we find that ranges of some phytoplankton types are reduced, while those of others (potentially minor players in the present ocean) expand. Combined change in areal extent of range and in regionally available nutrients leads to global "winners and losers." The model suggests that the strongest and most robust signal of the warming ocean is likely to be the large turnover in local phytoplankton community composition. ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77648
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 54-1412, 77 Massachusetts Ave., Cambridge, MA 02139, United States; Center for Global Change Science, Massachusetts Institute of Technology, Cambridge, MA, United States
Recommended Citation:
Dutkiewicz S,, Scott J,R,et al. Winners and losers: Ecological and biogeochemical changes in a warming ocean[J]. Global Biogeochemical Cycles,2013-01-01,27(2)