Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/s41559-017-0253-0 |
Decadal ecosystem response to an anomalous melt season in a polar desert in Antarctica | |
Gooseff, Michael N.1; Barrett, John E.2; Adams, Byron J.3,4; Doran, Peter T.5; Fountain, Andrew G.6; Lyons, W. Berry7; McKnight, Diane M.1; Priscu, John C.8; Sokol, Eric R.1; Takacs-Vesbach, Cristina9; Vandegehuchte, Martijn L.10,11,12,13; Virginia, Ross A.14; Wall, Diana H.10,11 | |
通讯作者 | Gooseff, Michael N. |
来源期刊 | NATURE ECOLOGY & EVOLUTION
![]() |
ISSN | 2397-334X |
出版年 | 2017 |
卷号 | 1期号:9页码:1334-1338 |
英文摘要 | Amplified climate change in polar regions is significantly altering regional ecosystems, yet there are few long-term records documenting these responses. The McMurdo Dry Valleys (MDV) cold desert ecosystem is the largest ice-free area of Antarctica, comprising soils, glaciers, meltwater streams and permanently ice-covered lakes. Multi-decadal records indicate that the MDV exhibited a distinct ecosystem response to an uncharacteristic austral summer and ensuing climatic shift. A decadal summer cooling phase ended in 2002 with intense glacial melt (’flood year’)-a step-change in water availability triggering distinct changes in the ecosystem. Before 2002, the ecosystem exhibited synchronous behaviour: declining stream flow, decreasing lake levels, thickening lake ice cover, decreasing primary production in lakes and streams, and diminishing soil secondary production. Since 2002, summer air temperatures and solar flux have been relatively consistent, leading to lake level rise, lake ice thinning and elevated stream flow. Biological responses varied; one stream cyanobacterial mat type immediately increased production, but another stream mat type, soil invertebrates and lake primary productivity responded asynchronously a few years after 2002. This ecosystem response to a climatic anomaly demonstrates differential biological community responses to substantial perturbations, and the mediation of biological responses to climate change by changes in physical ecosystem properties. |
类型 | Article |
语种 | 英语 |
国家 | USA ; Switzerland ; Belgium |
收录类别 | SCI-E |
WOS记录号 | WOS:000417190400024 |
WOS关键词 | RECENT CLIMATE-CHANGE ; DRY VALLEY STREAMS ; LIFE-CYCLE ; THRESHOLDS ; MARINE ; ALASKA ; IMPACT ; EVENT ; WATER |
WOS类目 | Ecology ; Evolutionary Biology |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
来源机构 | Colorado State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201228 |
作者单位 | 1.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 2.Virginia Tech, Dept Biol Sci, Blacksburg, VA 24061 USA; 3.Brigham Young Univ, Dept Biol, Provo, UT 84602 USA; 4.Brigham Young Univ, Monte L Bean Museum, Provo, UT 84602 USA; 5.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA; 6.Portland State Univ, Dept Geol, Portland, OR 97207 USA; 7.Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA; 8.Montana State Univ, Dept Land Resources & Environm Sci, Bozeman, MT 59717 USA; 9.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA; 10.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA; 11.Colorado State Univ, Sch Global Environm Sustainabil, Ft Collins, CO 80523 USA; 12.Swiss Fed Inst Forest Snow & Landscape Res, Res Unit Community Ecol, CH-8903 Birmensdorf, Switzerland; 13.Univ Ghent, Dept Biol, Terr Ecol Unit, B-9000 Ghent, Belgium; 14.Dartmouth Coll, Environm Studies Program, Hanover, NH 03755 USA |
推荐引用方式 GB/T 7714 | Gooseff, Michael N.,Barrett, John E.,Adams, Byron J.,et al. Decadal ecosystem response to an anomalous melt season in a polar desert in Antarctica[J]. Colorado State University,2017,1(9):1334-1338. |
APA | Gooseff, Michael N..,Barrett, John E..,Adams, Byron J..,Doran, Peter T..,Fountain, Andrew G..,...&Wall, Diana H..(2017).Decadal ecosystem response to an anomalous melt season in a polar desert in Antarctica.NATURE ECOLOGY & EVOLUTION,1(9),1334-1338. |
MLA | Gooseff, Michael N.,et al."Decadal ecosystem response to an anomalous melt season in a polar desert in Antarctica".NATURE ECOLOGY & EVOLUTION 1.9(2017):1334-1338. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。