PMID: 9543511Apr 16, 1998Paper

Dietary Exposure to Mercury in Nestling Wood Storks (Mycteria americana) in Georgia

Archives of Environmental Contamination and Toxicology
J C GariboldiA L Bryan

Abstract

The United States breeding population of the wood stork (Mycteria americana) was listed as endangered in 1984; the U.S. Fish and Wildlife Service has listed the determination of potential contaminant hazards as a task important to the recovery of the species. Storks nest in colonies and adult storks forage over wide areas and return with prey items to feed to nestlings. The most recently consumed prey items are usually regurgitated by nestlings when they are handled. In 1995, over 200 food items from four wood stork colonies were collected while banding nestlings between 20 and 40 days old, and total mercury determined in individual food items. Two colonies were located on the Atlantic coast and two in inland areas. Overall dietary mercury concentration for each colony was calculated based on the biomass of each type of food item within the diet. Freshwater prey items had higher mercury concentrations than saltwater items most frequently chosen by storks. Daily Hg doses were estimated for a range of nestling sizes and daily food consumption rates. Risk factors were calculated based on two lowest observable adverse effect concentrations (LOAECs) from previous avian mercury ingestion studies. Based on one LOAEC, all four colonies...Continue Reading

Citations

Apr 21, 2011·Archives of Environmental Contamination and Toxicology·David F BradfordMaliha S Nash
Jan 13, 2012·Archives of Environmental Contamination and Toxicology·A Lawrence BryanI Lehr Brisbin
Aug 6, 2008·Ecotoxicology·D G RumboldT D Atkeson
Sep 23, 2014·Environmental Toxicology and Chemistry·Albert L BryanI Lehr Brisbin
Apr 28, 2007·Chemosphere·William W BowermanSundaravelayutham Murugasan
Nov 7, 2014·Journal of Wildlife Diseases·A Lawrence BryanStacey L Lance
Oct 25, 2002·Environmental Pollution·Heather A BrantJoan C Gariboldi
Oct 28, 2018·Environmental Toxicology and Chemistry·Christopher T GerstleMatthew M Chumchal
Nov 27, 2015·Archives of Environmental Contamination and Toxicology·S J HerrmannH P Foutz
Aug 31, 2000·Applied and Environmental Microbiology·J V McArthur, R C Tuckfield

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