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Full-Text Articles in Life Sciences
A Tale Of Two Sylamores: Understanding Relationships Among Land Use, Nutrients, And Aquatic Communities Across A Subsidy-Stress Gradient, Danielle Braund, Andrew Feltmann, George Gavrielides, Katherine Lang, Jennifer Main, Anastasia Mogilevski, Justin Mosbey, Rebecca Relic, Calvin Rezac, Brianna Trejo, Ginny Adams, Steven R. Adams
A Tale Of Two Sylamores: Understanding Relationships Among Land Use, Nutrients, And Aquatic Communities Across A Subsidy-Stress Gradient, Danielle Braund, Andrew Feltmann, George Gavrielides, Katherine Lang, Jennifer Main, Anastasia Mogilevski, Justin Mosbey, Rebecca Relic, Calvin Rezac, Brianna Trejo, Ginny Adams, Steven R. Adams
Journal of the Arkansas Academy of Science
Agricultural land use is known to degrade aquatic systems with high inputs of nutrients, sediments, and pesticides. Increased nutrients can lead to increased algal growth and thus possible hypoxic conditions in slow moving water, while increased sediment loads have been shown to obstruct light and reduce substrate stability. These conditions negatively impact primary producers, macroinvertebrates, and fish. However, small-scale changes in land use can subsidize an aquatic ecosystem instead, where an increase in nutrients allows nutrient-limited biota to flourish, and minor increases in sedimentation may help support populations of collector-filterers. The stimulation in performance caused by small disturbances is part …
Urban Stream Syndrome In A Small Town: A Comparative Study Of Sager And Flint Creeks, T. S. Wakefield
Urban Stream Syndrome In A Small Town: A Comparative Study Of Sager And Flint Creeks, T. S. Wakefield
Journal of the Arkansas Academy of Science
Utilizing rapid bioassessment procedures and aquatic physiochemical techniques, a three-year investigation of Sager and Flint creeks was completed. Bioassessment indices and physiochemical parameters of the 2 streams were compared and the effects of urbanization on both watersheds were assessed. Correlating data concerning land usage in both watersheds and alterations of both streams' geomorphology were also utilized to conclude that Sager Creek shows a higher degree of urban stream syndrome than Flint Creek.