The Impact of Mercury Exposure on the Common Loon (Gavia immer) Population in the Adirondack Park, New York, USA
| Autor: | John W. Ozard, Michale J. Glennon, Allyson K. Jackson, Nina Schoch, David C. Evers, Melissa Duron, Amy K. Sauer, Charles T. Driscoll |
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| Rok vydání: | 2014 |
| Předmět: |
education.field_of_study
Reproductive success biology Exposure Category Ecology Aquatic ecosystem Population Zoology chemistry.chemical_element biology.organism_classification Mercury (element) chemistry.chemical_compound chemistry Indicator species Common loon Animal Science and Zoology education Methylmercury |
| Zdroj: | Waterbirds. 37:133-146 |
| ISSN: | 1938-5390 1524-4695 |
| Popis: | The Common Loon (Gavia immer), a top trophic-level piscivorous predator, was used as an indicator species to assess mercury exposure and risk in aquatic ecosystems in the Adirondack Park of New York State. Mercury levels in Common Loons were related to long-term reproductive success to evaluate the effects of mercury contamination on the breeding population in the Park and enable the development of a mercury hazard profile. Common Loons were sampled and monitored on selected study lakes from 1998–2007. Lake acidity correlated with Common Loon mercury levels, with more acidic lakes exhibiting higher mercury concentrations in Common Loons. Based on mercury body burden estimated by blood mercury exposure, 21% of males and 8% of females were at high risk for behavioral and reproductive impacts, while feather mercury exposure estimated that 37% of males and 7% of females were at high risk. Female and male Common Loons in the highest exposure category showed a 32% and 56% reduction, respectively, in t... |
| Databáze: | OpenAIRE |
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