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Resistance and change in a High Arctic ecosystem, NW Greenland: Differential sensitivity of ecosystem metrics to 15 years of experimental warming and wetting 期刊论文
Global Change Biology, 2021
作者:  Robert Gus Jespersen;  Alan Joshua Leffler;  Maria Vä;  isä;  nen;  Jeffrey M. Welker
收藏  |  浏览/下载:12/0  |  提交时间:2022/01/14
Winter snow and spring temperature have differential effects on vegetation phenology and productivity across Arctic plant communities 期刊论文
Global Change Biology, 2021
作者:  Katharine C. Kelsey;  Stine Hø;  jlund Pedersen;  A. Joshua Leffler;  Joseph O. Sexton;  Min Feng;  Jeffrey M. Welker
收藏  |  浏览/下载:8/0  |  提交时间:2021/02/17
Cloud cover and delayed herbivory relative to timing of spring onset interact to dampen climate change impacts on net ecosystem exchange in a coastal Alaskan wetland 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (8)
作者:  Leffler, A. Joshua;  Beard, Karen H.;  Kelsey, Katharine C.;  Choi, Ryan T.;  Schmutz, Joel A.;  Welker, Jeffrey M.
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/27
phenological mismatch  net ecosystem exchange  migratory geese  grazing  herbivory  Arctic ecosystem  cloud cover  
Synoptic and Mesoscale Mechanisms Drive Winter Precipitation delta O-18/delta H-2 in South-Central Alaska 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (7) : 4252-4266
作者:  Bailey, Hannah L.;  Klein, Eric S.;  Welker, Jeffrey M.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/26
Delayed herbivory by migratory geese increases summer-long CO2 uptake in coastal western Alaska 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (1) : 277-289
作者:  Leffler, A. Joshua;  Beard, Karen H.;  Kelsey, Katharine C.;  Choi, Ryan T.;  Schmutz, Joel A.;  Welker, Jeffrey M.
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
Arctic  ecosystem respiration  greenhouse gas emission  herbivory  net ecosystem exchange  Pacific black brant  phenological mismatch  subarctic  
Greater temperature sensitivity of plant phenology at colder sites: implications for convergence across northern latitudes 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (7)
作者:  Prevey, Janet;  Vellend, Mark;  Ruger, Nadja;  Hollister, Robert D.;  Bjorkman, Anne D.;  Myers-Smith, Isla H.;  Elmendorf, Sarah C.;  Clark, Karin;  Cooper, Elisabeth J.;  Elberling, Bo;  Fosaa, Anna M.;  Henry, Gregory H. R.;  Hoye, Toke T.;  Jonsdottir, Ingibjorg S.;  Klanderud, Kari;  Levesque, Esther;  Mauritz, Marguerite;  Molau, Ulf;  Natali, Susan M.;  Oberbauer, Steven F.;  Panchen, Zoe A.;  Post, Eric;  Rumpf, Sabine B.;  Schmidt, Niels M.;  Schuur, Edward A. G.;  Semenchuk, Phillip R.;  Troxler, Tiffany;  Welker, Jeffrey M.;  Rixen, Christian
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09
Arctic  Cassiope tetragona  climate change  climatic gradient  flowering  International Tundra Experiment  latitude  tundra  
Pacific North American circulation pattern links external forcing and North American hydroclimatic change over the past millennium 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017, 114 (13) : 3340-3345
作者:  Liu, Zhongfang;  Tang, Yanlin;  Jian, Zhimin;  Poulsen, Christopher J.;  Welker, Jeffrey M.;  Bowen, Gabriel J.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
paleoclimate  atmospheric circulation  Holocene  climate change  North America