Browsing Nora Casson by Author "Casson, Nora J."
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The ecology of methane in streams and rivers: patterns, controls, and global significance
Stanley, Emily H.; Casson, Nora J.; Christel, Samuel T.; Crawford, John T.; Loken, Luke C.; Oliver, Samantha K. (Ecological Society of America, 2015-12-07)Streams and rivers can substantially modify organic carbon (OC) inputs from terrestrial landscapes, and much of this processing is the result of microbial respiration. While carbon dioxide (CO₂) is the major end‐product ... -
Hydrological and catchment controls on event-scale dissolved organic carbon dynamics in boreal headwater streams
Ducharme, Adrienne A.; Casson, Nora J.; Higgins, Scott N.; Friesen-Hughes, Karl (Wiley, 2021-06-23)Hydrological events transport large proportions of annual or seasonal dissolved organic carbon (DOC) loads from catchments to streams. The timing, magnitude and intensity of these events are very sensitive to changes in ... -
Hydrological and seasonal controls of phosphorus in Northern Great Plains agricultural streams
Casson, Nora J.; Wilson, Henry F.; Higgins, Stephanie (Alliance of Crop, Soil., and Environmental Science Societies, 2019)Controls on nutrient transport in cold, low relief agricultural regions vary dramatically among seasons. The spring snowmelt is often the dominant runoff and nutrient loading event of the year. However, climate change may ... -
A model for training undergraduate students in collaborative science
Casson, Nora J.; Whitfield, Colin J.; Baulch, Helen M.; Mills, Sheryl; North, Rebecca L.; Venkiteswaran, Jason J. (American Geophysical Union, 2018-08-16)Engagement of undergraduate students in research has been demonstrated to correlate with improved academic performance and retention. Research experience confers many benefits on participants, particularly foundational ... -
Nitrogen dynamics and nitrogen-to-phosphorus stoichiometry in cold region agricultural streams
Friesen-Hughes, Karl; Casson, Nora J.; Wilson, Henry F. (Wiley Periodicals LLC on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2021-05-12)Cold agricultural regions are getting warmer and experiencing shifts in precipitation patterns, which affect hydrological transport of nutrients through reduced snowpack and higher annual proportions of summer rainfall. ... -
The role of wetland coverage within the near-stream zone in predicting of seasonal stream export chemistry from forested headwater catchments
Casson, Nora J.; Eimers, M. Catherine; Watmough, Shaun A.; Richardson, Murray C. (John Wiley & Sons Ltd., 2019-02-19)Stream chemistry is often used to infer catchment‐scale biogeochemical processes. However, biogeochemical cycling in the near‐stream zone or hydrologically‐connected areas may exert a stronger influence on stream chemistry ...