M
Marilyn D. Walker
Researcher at Institute of Arctic and Alpine Research
Publications - 58
Citations - 17086
Marilyn D. Walker is an academic researcher from Institute of Arctic and Alpine Research. The author has contributed to research in topics: Tundra & Arctic. The author has an hindex of 34, co-authored 52 publications receiving 15918 citations. Previous affiliations of Marilyn D. Walker include United States Forest Service & United States Department of Agriculture.
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Journal ArticleDOI
Global biodiversity scenarios for the year 2100.
Osvaldo E. Sala,F. S. Chapin,Juan J. Armesto,Eric L. Berlow,Janine Bloomfield,Rodolfo Dirzo,E Huber-Sanwald,Laura Foster Huenneke,Robert B. Jackson,Ann P. Kinzig,Rik Leemans,David M. Lodge,Harold A. Mooney,Martín Oesterheld,N L Poff,Martin T. Sykes,Brian Walker,Marilyn D. Walker,Diana H. Wall +18 more
TL;DR: This study identified a ranking of the importance of drivers of change, aranking of the biomes with respect to expected changes, and the major sources of uncertainties in projections of future biodiversity change.
Journal ArticleDOI
Evidence and implications of recent climate change in northern Alaska and other arctic regions.
Larry D. Hinzman,Neil D. Bettez,W. Robert Bolton,F. Stuart Chapin,Mark B. Dyurgerov,Chris L. Fastie,Brad Griffith,Robert D. Hollister,Allen Hope,Henry P. Huntington,Anne M. Jensen,Gensuou J. Jia,T. Jorgenson,Douglas L. Kane,David R. Klein,Gary P. Kofinas,Amanda H. Lynch,Andrea H. Lloyd,A. David McGuire,Frederick E. Nelson,Walter C. Oechel,T. E. Osterkamp,Charles H. Racine,Vladimir E. Romanovsky,Robert S. Stone,Douglas A. Stow,Matthew Sturm,Craig E. Tweedie,George L. Vourlitis,Marilyn D. Walker,Donald A. Walker,P. J. Webber,Jeffrey M. Welker,Kevin Winker,Kenji Yoshikawa +34 more
TL;DR: In this article, the authors present a broad array of evidence that illustrates con- vincingly; the Arctic is undergoing a system-wide response to an altered climatic state.
Evidence and Implications of Recent Climate Change in Northern Alaska and Other Arctic Regions
Larry D. Hinzman,Neil D. Bettez,W. R. Bolton,F. S. Chapin,Mark B. Dyurgerov,Christopher L. Fastie,Brad Griffith,Robert D. Hollister,Allen Hope,Henry P. Huntington,Anne M. Jensen,Gensuo Jia,T. Jorgenson,Douglas L. Kane,David R. Klein,Gary P. Kofinas,Amanda H. Lynch,Andrea H. Lloyd,A. D. McGuire,Frederick E. Nelson,M. Nolan,Walter C. Oechel,T. E. Osterkamp,Charles H. Racine,Vladimir E. Romanovsky,Robert S. Stone,Douglas A. Stow,Matthew Sturm,Craig E. Tweedie,George L. Vourlitis,Marilyn D. Walker,Donald A. Walker,P. J. Webber,Jeffrey M. Welker,Kevin Winker,Kenji Yoshikawa +35 more
Journal ArticleDOI
Plant community responses to experimental warming across the tundra biome
Marilyn D. Walker,C. Henrik Wahren,Robert D. Hollister,Greg H. R. Henry,Lorraine E. Ahlquist,Juha M. Alatalo,M. Syndonia Bret-Harte,Monika P. Calef,Terry V. Callaghan,Amy B Carroll,Howard E. Epstein,Ingibjörg S. Jónsdóttir,Julia A. Klein,Borgthor Magnusson,Ulf Molau,Steven F. Oberbauer,Steven P. Rewa,Clare H. Robinson,Gaius R. Shaver,Katharine N. Suding,Catharine C. Thompson,Anne Tolvanen,Ørjan Totland,P. Lee Turner,Craig E. Tweedie,P. J. Webber,Philip A. Wookey +26 more
TL;DR: Warming increased height and cover of deciduous shrubs and graminoids, decreased cover of mosses and lichens, and decreased species diversity and evenness, which predict that warming will cause a decline in biodiversity across a wide variety of tundra, at least in the short term.
Journal ArticleDOI
Responses of tundra plants to experimental warming:meta‐analysis of the international tundra experiment
A. M. Arft,Marilyn D. Walker,Jessica Gurevitch,Juha M. Alatalo,M. S. Bret-Harte,Mark R. T. Dale,M. Diemer,Felix Gugerli,Gregory H. R. Henry,Michael H. Jones,Robert D. Hollister,Ingibjörg S. Jónsdóttir,Kari Laine,Esther Lévesque,G. M. Marion,Ulf Molau,P. Mølgaard,Urban Nordenhäll,V. Raszhivin,Clare H. Robinson,Gregory Starr,Anna Stenström,Mikael Stenström,Ørjan Totland,P. L. Turner,L. J. Walker,P. J. Webber,Jeffrey M. Welker,Philip A. Wookey +28 more
TL;DR: Results indicate that key phenological events such as leaf bud burst and flowering occurred earlier in warmed plots throughout the study period; however, there was little impact on growth cessation at the end of the season.