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Spatial and Temporal Variability in the Amount and Source of Dissolved Organic Carbon: Implications for UV Exposure in Amphibian Habitats

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Abstract:The amount, chemical composition, and source of dissolved organic carbon (DOC), together with in situ ultraviolet-B radiation (UV -B; 280 to 320 nm) attenuation, were measured at one to two week intervals throughout the summers of 1999,2000, and 2001 at four sites in Rocky Mountain National Park (Colorado). Eight additional sites, four in Sequoia and Kings Canyon National Park/John Muir Wilderness (California) and four in Glacier National Park (Montana), were sampled during the summer of 2000. UV -B attenuation was significantly related to DOC concentrations over the three years in Rocky Mountain (R2 = 0.39, F=25.71, p<0.0001) and across all parks in 2000 (R2 = 0.44, F=38.25, p
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Citation:Brooks, P. D., C. M. O'reilly, S. A. Diamond, D. H. Campbell, R. A. Knapp, D. F. Bradford, P. S. Corn, B. Hossack, and K. E. Tonnessen. Spatial and Temporal Variability in the Amount and Source of Dissolved Organic Carbon: Implications for UV Exposure in Amphibian Habitats. ECOSYSTEMS 8:478-487, (2005).
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Contact: Chris Siebert - (702) 798-2234 or siebert.christopher@epa.gov
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Division: Environmental Sciences Division
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Branch: Landscape Ecology Branch
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Product Type: Journal
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Published: 09/23/2005
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Bullet Item Spatial and Temporal Variability in the Amount and Source of Dissolved Organic Carbon: Implications for UV Exposure in Amphibian Habitats
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Related Entries:
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Bullet Item Development of Landscape Indicators for Use in Regional Ecological Risk Assessments
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