Diane M. McKnight
Institute of Arctic and Alpine Research
329 Papers
3.7K Citations
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 & Chemistry. The author has an hindex of 82, co-authored 315 publications. Previous affiliations of Diane M. McKnight include University of Texas at Dallas & University of Cambridge.
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Papers
Antarctic climate cooling and terrestrial ecosystem response
Peter T. Doran,John C. Priscu,W. Berry Lyons,John Walsh,Andrew G. Fountain,Diane M. McKnight,Daryl L. Moorhead,Ross A. Virginia,Diana H. Wall,Gary D. Clow,Christian H. Fritsen,Christopher P. McKay,Andrew N. Parsons +12 more
TL;DR: Data from the dry valleys are presented representing evidence of rapid terrestrial ecosystem response to climate cooling in Antarctica, including decreased primary productivity of lakes and declining numbers of soil invertebrates, which poses challenges to models of climate and ecosystem change.
Decadal ecosystem response to an anomalous melt season in a polar desert in Antarctica
Michael N. Gooseff,John E. Barrett,Byron J. Adams,Peter T. Doran,Andrew G. Fountain,W. Berry Lyons,Diane M. McKnight,John C. Priscu,Eric R. Sokol,Cristina D. Takacs-Vesbach,Martijn L. Vandegehuchte,Martijn L. Vandegehuchte,Martijn L. Vandegehuchte,Ross A. Virginia,Diana H. Wall +14 more
TL;DR: The McMurdo Dry Valleys ecosystem response to a climatic anomaly demonstrates differential biological community responses to substantial perturbations, and the mediation of biological responses to climate change by changes in physical ecosystem properties.
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).
Weathering reactions and hyporheic exchange controls on stream water chemistry in a glacial meltwater stream in the McMurdo Dry Valleys
TL;DR: In this paper, the authors used a best linear fit to compute sediment surface area normalized weathering rates for the von Guerard Stream in Taylor Valley, Antarctica, and used a transient storage model to simulate dC/dx, representing both hyporheic exchange and chemical weathering.
Nutrient treatments alter microbial mat colonization in two glacial meltwater streams from the McMurdo Dry Valleys, Antarctica.
Tyler J. Kohler,Tyler J. Kohler,David J. Van Horn,Joshua P. Darling,Cristina D. Takacs-Vesbach,Diane M. McKnight +5 more
TL;DR: N amendments and N treatments were substantially elevated in Bacteroidetes and the small diatom, Fistulifera pelliculosa, and species richness was almost double in P and N + P treatments over others, and coccoid green algae and Proteobacteria were more abundant in both streams.