P
P. J. Webber
Researcher at Michigan State University
Publications - 27
Citations - 7554
P. J. Webber is an academic researcher from Michigan State University. The author has contributed to research in topics: Tundra & Arctic. The author has an hindex of 22, co-authored 27 publications receiving 7112 citations. Previous affiliations of P. J. Webber include University of Colorado Boulder & University of Alaska Fairbanks.
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Journal ArticleDOI
Circumpolar Arctic Tundra Vegetation Change Is Linked to Sea Ice Decline
Uma S. Bhatt,Donald A. Walker,Martha K. Raynolds,Josefino C. Comiso,Howard E. Epstein,Gensuo Jia,Rudiger Gens,Jorge E. Pinzon,Compton J. Tucker,Craig E. Tweedie,P. J. Webber +10 more
TL;DR: In this paper, the authors use a newly available Arctic Normalized Difference Vegetation Index (NDVI) dataset (a measure of vegetation photosynthetic capacity) to document coherent temporal relationships between near-coastal sea ice, summer tundra land surface temperatures, and vegetation productivity.
Journal ArticleDOI
Tundra co2 fluxes in response to experimental warming across latitudinal and moisture gradients
Steven F. Oberbauer,Craig E. Tweedie,Jeffrey M. Welker,Jace T. Fahnestock,Greg H. R. Henry,P. J. Webber,Robert D. Hollister,Marilyn D. Walker,Andrea Kuchy,Elizabeth Elmore,Gregory Starr +10 more
TL;DR: In this article, the International Tundra Experiment (ITEX) standard warming treatment was used to determine CO2 flux responses to growing-season warming for ecosystems spanning natural temperature and moisture ranges across the Arctic biome.
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The Response of Alaskan Arctic Tundra to Experimental Warming: Differences Between Short- and Long-term Responses
TL;DR: The response of arctic tundra to climate warming, four sites in northern Alaska were warmed for five to seven consecutive growing seasons using open-top chambers as mentioned in this paper, and change in plant community composition was measured using a point frame method.
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Biotic Validation of Small Open-top Chambers in a Tundra Ecosystem
Robert D. Hollister,P. J. Webber +1 more
TL;DR: In this paper, small open-top chambers were used to passively warm canopy temperatures in wet meadow tundra at Barrow, Alaska, during two consecutive summers with contrasting surface air-temperatures.
Journal ArticleDOI
Effects of interannual climate variation on aboveground phytomass in alpine vegetation
TL;DR: In this article, the relationship between peak annual vascular aboveground phytomass and annual climate variation in alpine plant communities located on Niwot Ridge, Colorado, were analyzed using path analysis.