Journal ArticleDOI
Plot-scale evidence of tundra vegetation change and links to recent summer warming.
Sarah C. Elmendorf,Gregory H. R. Henry,Robert D. Hollister,Robert G. Björk,Noémie Boulanger-Lapointe,Elisabeth J. Cooper,Johannes H. C. Cornelissen,Thomas A. Day,Ellen Dorrepaal,Ellen Dorrepaal,Tatiana G. Elumeeva,M.J. Gill,William A. Gould,John Harte,David S. Hik,Annika Hofgaard,D. R. Johnson,Jill F. Johnstone,Ingibjörg S. Jónsdóttir,Janet C. Jorgenson,Kari Klanderud,Julia A. Klein,Saewan Koh,Gaku Kudo,Mark J. Lara,Esther Lévesque,Borgthor Magnusson,Jeremy L. May,Joel A. Mercado-Díaz,Anders Michelsen,Ulf Molau,Isla H. Myers-Smith,Steven F. Oberbauer,Vladimir G. Onipchenko,Christian Rixen,Niels Martin Schmidt,Gaius R. Shaver,Marko J. Spasojevic,Póra Ellen Pórhallsdóttir,Anne Tolvanen,Tiffany G. Troxler,Craig E. Tweedie,Sandra Villareal,Carl Henrik Wahren,Xanthe J. Walker,Xanthe J. Walker,P. J. Webber,Jeffrey M. Welker,Sonja Wipf +48 more
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In this paper, remote sensing data indicate that contemporary climate warming has already resulted in increased productivity and increased productivity in the tundra biome (Tundra Tundra Bi biome).Abstract:
Temperature is increasing at unprecedented rates across most of the tundra biome(1). Remote-sensing data indicate that contemporary climate warming has already resulted in increased productivity ov ...read more
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Journal ArticleDOI
Interaction webs in arctic ecosystems: Determinants of arctic change?
Niels Martin Schmidt,Bess Hardwick,Olivier Gilg,Toke T. Høye,Paul Henning Krogh,Hans Meltofte,Anders Michelsen,Jesper Bruun Mosbacher,Katrine Raundrup,Jeroen Reneerkens,Lærke Stewart,Helena Wirta,Tomas Roslin +12 more
TL;DR: These insights form Zackenberg emphasize that the combination of long-term, ecosystem-based monitoring, and targeted research projects offers the most fruitful basis for understanding and predicting the future of arctic ecosystems.
Journal ArticleDOI
Trends in NDVI and Tundra Community Composition in the Arctic of NE Alaska Between 1984 and 2009
TL;DR: In this article, the authors report on trends in species composition for field plots in the Arctic National Wildlife Refuge in NE Alaska from 1984 to 2009 and link these trends to the trends in NDVI at fine and coarse scales.
Journal ArticleDOI
Winter precipitation and snow accumulation drive the methane sink or source strength of Arctic tussock tundra.
E. Blanc-Betes,Jeffrey M. Welker,Neil C. Sturchio,Jeffrey P. Chanton,Miquel A. Gonzalez-Meler +4 more
TL;DR: The results suggest that increased winter precipitation will increase the CH4 source strength of Arctic tundra, but the resulting positive feedback on climate change will depend on the balance between areas with more or less snow accumulation than they are currently facing.
Journal ArticleDOI
Short-term climate change manipulation effects do not scale up to long-term legacies: Effects of an absent snow cover on boreal forest plants
TL;DR: In this article, the majority of our knowledge about ecosystem responses to long-term changes in climate originates from relatively short-term experime experiences, despite time-lags and nonlinearity in ecological processes.
Journal ArticleDOI
A pollen-climate transfer function from the tundra and taiga vegetation in Arctic Siberia and its applicability to a Holocene record
Juliane Klemm,Ulrike Herzschuh,Ulrike Herzschuh,Michael F. J. Pisaric,Richard J. Telford,Richard J. Telford,Birgit Heim,Luidmila A. Pestryakova +7 more
TL;DR: In this paper, a modern pollen-climate transfer function from the transition zone between arctic tundra and light-needled taiga in Arctic Siberia was applied to evaluate the relationship between modern pollen signal and corresponding vegetation types and climate.
References
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Controlling the false discovery rate: a practical and powerful approach to multiple testing
Yoav Benjamini,Yosef Hochberg +1 more
TL;DR: In this paper, a different approach to problems of multiple significance testing is presented, which calls for controlling the expected proportion of falsely rejected hypotheses -the false discovery rate, which is equivalent to the FWER when all hypotheses are true but is smaller otherwise.
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ggplot2: Elegant Graphics for Data Analysis
TL;DR: This book describes ggplot2, a new data visualization package for R that uses the insights from Leland Wilkisons Grammar of Graphics to create a powerful and flexible system for creating data graphics.
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The Physical Science Basis
E. Jansen,J Overpeck,Keith R. Briffa,J. C. Duplessy,F. Joos,Masson-Delmotte,Daniel Olago,B. Otto-Bliesner,W. R. Peltier,Stefan Rahmstorf,Rengaswamy Ramesh,D Raynud,D Rind,O Solomina,Ricardo Villalba,De Zhang +15 more
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Rapid Range Shifts of Species Associated with High Levels of Climate Warming
TL;DR: A meta-analysis shows that species are shifting their distributions in response to climate change at an accelerating rate, and that the range shift of each species depends on multiple internal species traits and external drivers of change.
Journal ArticleDOI
An extended AVHRR 8‐km NDVI dataset compatible with MODIS and SPOT vegetation NDVI data
Compton J. Tucker,Jorge E. Pinzon,Molly E. Brown,Daniel Slayback,Edwin W. Pak,Robert Mahoney,Eric Vermote,Nazmi Saleous +7 more
TL;DR: In this article, the NDVI 8-km equal area dataset from July 1981 through December 2004 for all continents except Antarctica was used to produce a Normalized Difference Vegetation Index (NDVI) 8.
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