D
Diane M. McKnight
Researcher at Institute of Arctic and Alpine Research
Publications - 327
Citations - 29178
Diane M. McKnight is an academic researcher from Institute of Arctic and Alpine Research. The author has contributed to research in topics: Dissolved organic carbon & Meltwater. The author has an hindex of 82, co-authored 315 publications receiving 26281 citations. Previous affiliations of Diane M. McKnight include University of Texas at Dallas & University of Cambridge.
Papers
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Journal ArticleDOI
Effects of short-term drying and irrigation on electron flow in mesocosms of a northern bog and an alpine fen.
TL;DR: The results suggest that regular rainfall and subsequent drying may lead to local oxidation-reduction cycles that substantially influence electron flow in electron acceptor poor wetlands.
Journal ArticleDOI
Effects of Nutrient Enrichment on Phytoplankton in an Alpine Lake, Colorado, U.S.A
TL;DR: In this article, the effects of sustained increases in nitrate concentrations on phytoplankton dynamics in an alpine lake were investigated using Principal Component Analysis (PCA).
Book ChapterDOI
Carbon Cycling in Terrestrial Environments
Yang Wang,Thomas G. Huntington,Laurie J. Osher,Leonard I. Wassenaar,Susan E. Trumbore,Ronald Amundson,Jennifer W. Harden,Diane M. McKnight,Sherry L. Schiff,George R. Aiken,W. Berry Lyons,Ramon Aravena,Jill S. Baron +12 more
TL;DR: In this paper, a number of applications of isotopic techniques for the investigation of carbon cycling processes are reviewed, and the most important factor affecting the measured 14C ages of soil organic matter is the rate of organic carbon cycling in soils.
Journal ArticleDOI
Patterns of bacterial biodiversity in the glacial meltwater streams of the McMurdo Dry Valleys, Antarctica
David J. Van Horn,Caitlin Wolf,Daniel R. Colman,Xiaoben Jiang,Tyler J. Kohler,Diane M. McKnight,Lee F. Stanish,Terrill Yazzie,Cristina D. Takacs-Vesbach +8 more
TL;DR: Results suggest that localized conditions dictate bacterial community composition of the same mat types and sediments from different streams, and while MDV streams are hotspots of biodiversity in an otherwise depauperate landscape, controls on community structure are complex and site specific.
Journal ArticleDOI
When a habitat freezes solid: microorganisms over-winter within the ice column of a coastal Antarctic lake
Christine M. Foreman,Markus Dieser,Mark C. Greenwood,Rose M. Cory,Johanna Laybourn-Parry,John T. Lisle,Christopher Jaros,Penney L. Miller,Yu-Ping Chin,Diane M. McKnight +9 more
TL;DR: Evidence is provided that the microbial community over-winters in the ice column of Pony Lake and returns to a highly active metabolic state when spring melt is initiated, providing evidence that the biology of microorganisms inhabiting Antarctic environments is understood.