Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/NGEO2861 |
Annual boom-bust cycles of polar phytoplankton biomass revealed by space-based lidar | |
Behrenfeld, Michael J.1; 39;Malley, Robert T.2 | |
2017-02-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Polar plankton communities are among the most productive, seasonally dynamic and rapidly changing ecosystems in the global ocean. However, persistent cloud cover, periods of constant night and prevailing low solar elevations in polar regions severely limit traditional passive satellite ocean colour measurements and leave vast areas unobserved for many consecutive months each year. Consequently, our understanding of the annual cycles of polar plankton and their interannual variations is incomplete. Here we use space-borne lidar observations to overcome the limitations of historical passive sensors and report a decade of uninterrupted polar phytoplankton biomass cycles. We find that polar phytoplankton dynamics are categorized by 'boom-bust' cycles resulting from slight imbalances in plankton predator-prey equilibria. The observed seasonal-to-interannual variations in biomass are predicted by mathematically modelled rates of change in phytoplankton division. Furthermore, we find that changes in ice cover dominated variability in Antarctic phytoplankton stocks over the past decade, whereas ecological processes were the predominant drivers of change in the Arctic. We conclude that subtle and environmentally driven imbalances in polar food webs underlie annual phytoplankton boom-bust cycles, which vary interannually at each pole. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394121800015 |
WOS关键词 | MARINE-PHYTOPLANKTON ; OPTICAL-PROPERTIES ; GLOBAL-SCALE ; OCEAN ; CHLOROPHYLL ; SUBSURFACE ; GROWTH ; LIGHT ; SEA ; PLANKTON |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34938 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Oregon State Univ, Dept Bot & Plant Pathol, Cordley Hall 2082, Corvallis, OR 97331 USA; 2.NASA Langley Res Ctr, MS 420, Hampton, VA 23681 USA; 3.Univ Maine, Sch Marine Sci, 5706 Aubert Hall, Orono, ME 04469 USA; 4.Univ Calif Santa Barbara, Earth Res Inst, Santa Barbara, CA 93106 USA; 5.Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA; 6.Princeton Univ, Atmospher & Ocean Sci Program, 300 Forrestal Rd,Sayre Hall, Princeton, NJ 08544 USA |
推荐引用方式 GB/T 7714 | Behrenfeld, Michael J.,39;Malley, Robert T.. Annual boom-bust cycles of polar phytoplankton biomass revealed by space-based lidar[J]. NATURE GEOSCIENCE,2017,10(2). |
APA | Behrenfeld, Michael J.,&39;Malley, Robert T..(2017).Annual boom-bust cycles of polar phytoplankton biomass revealed by space-based lidar.NATURE GEOSCIENCE,10(2). |
MLA | Behrenfeld, Michael J.,et al."Annual boom-bust cycles of polar phytoplankton biomass revealed by space-based lidar".NATURE GEOSCIENCE 10.2(2017). |
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