J. M. Welker

Research interests

Publications

• Winters are changing: snow effects on Arctic and alpine tundra ecosystems

  Arctic Science · 2022 · https://doi.org/10.1139/as-2020-0058

• Experimental warming differentially affects vegetative and reproductive phenology of tundra plants

  Nature Communications · 2021 · https://doi.org/10.1038/s41467-021-23841-2

• Large loss of CO2 in winter observed across the northern permafrost region

  Nature Climate Change · 2019 · https://doi.org/10.1038/s41558-019-0592-8

• Warming shortens flowering seasons of tundra plant communities

  Nature Ecology & Evolution · 2018 · https://doi.org/10.1038/s41559-018-0745-6

• Greater temperature sensitivity of plant phenology at colder sites: implications for convergence across northern latitudes

  Global Change Biology · 2017 · https://doi.org/10.1111/gcb.13619

• Substantial proportion of global streamflow less than three months old

  Nature Geoscience · 2016 · https://doi.org/10.1038/ngeo2636

• Quantifying global soil carbon losses in response to warming

  Nature · 2016 · https://doi.org/10.1038/nature20150

• The pronounced seasonality of global groundwater recharge

  Water Resources Research · 2014 · https://doi.org/10.1002/2014wr015809

• Phenological response of tundra plants to background climate variation tested using the International Tundra Experiment

  Philosophical Transactions of the Royal Society B Biological Sciences · 2013 · https://doi.org/10.1098/rstb.2012.0481

• Plot-scale evidence of tundra vegetation change and links to recent summer warming

  Nature Climate Change · 2012 · https://doi.org/10.1038/nclimate1465

• Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities

  Environmental Research Letters · 2011 · https://doi.org/10.1088/1748-9326/6/4/045509

• Ecological Dynamics Across the Arctic Associated with Recent Climate Change

  Science · 2009 · https://doi.org/10.1126/science.1173113

• Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability

  New Phytologist · 2009 · https://doi.org/10.1111/j.1469-8137.2009.02917.x

• Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes

  Ecology Letters · 2007 · https://doi.org/10.1111/j.1461-0248.2007.01051.x

• Evidence and Implications of Recent Climate Change in Northern Alaska and Other Arctic Regions

  Climatic Change · 2005 · https://doi.org/10.1007/s10584-005-5352-2

• Role of Land-Surface Changes in Arctic Summer Warming

  Science · 2005 · https://doi.org/10.1126/science.1117368

• The role of topography on catchment‐scale water residence time

  Water Resources Research · 2005 · https://doi.org/10.1029/2004wr003657

• Winter Biological Processes Could Help Convert Arctic Tundra to Shrubland

  BioScience · 2005 · https://doi.org/10.1641/0006-3568(2005)055[0017:wbpchc]2.0.co;2

• RESPONSES OF TUNDRA PLANTS TO EXPERIMENTAL WARMING:META-ANALYSIS OF THE INTERNATIONAL TUNDRA EXPERIMENT

  Ecological Monographs · 1999 · https://doi.org/10.1890/0012-9615(1999)069[0491:rotpte]2.0.co;2

• Responses of Tundra Plants to Experimental Warming: Meta-Analysis of the International Tundra Experiment

  Ecological Monographs · 1999 · https://doi.org/10.2307/2657227

Current projects

No projects listed.