Detection of Mercury Among Avian Trophic Levels at Caddo Lake and Lake Lewisville, TX

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Mercury (Hg) is a globally distributed toxicant that has been shown to have negative effects on birds. in the United States, avian taxa have been shown to possess high Hg concentrations in the northeast, Great Lakes and Everglades ecosystems; however, few studies have measured avian Hg concentrations in other geographic regions. Previous studies have documented high Hg concentrations in multiple organisms in east Texas, but birds were not included in these studies. the main objective of the present study was to quantify Hg concentrations in birds in differing trophic levels at Caddo Lake and Lake Lewisville, TX. Results suggest that … continued below

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Schulwitz, Sarah E. May 2012.

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Mercury (Hg) is a globally distributed toxicant that has been shown to have negative effects on birds. in the United States, avian taxa have been shown to possess high Hg concentrations in the northeast, Great Lakes and Everglades ecosystems; however, few studies have measured avian Hg concentrations in other geographic regions. Previous studies have documented high Hg concentrations in multiple organisms in east Texas, but birds were not included in these studies. the main objective of the present study was to quantify Hg concentrations in birds in differing trophic levels at Caddo Lake and Lake Lewisville, TX. Results suggest that Hg concentrations may be high enough to negatively impact some bird taxa, particularly those at high trophic levels, residing at both Caddo Lake and Lake Lewisville.

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  • May 2012

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  • Nov. 6, 2012, 3:03 p.m.

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  • April 30, 2020, 2:56 p.m.

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Schulwitz, Sarah E. Detection of Mercury Among Avian Trophic Levels at Caddo Lake and Lake Lewisville, TX, thesis, May 2012; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc115153/: accessed May 4, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .

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