Long-Term Persistence of Spent Lead Shot in Tundra Wetlands

Paul L. Flint; Jason L. Schamber

doi:10.2193/2008-494

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Paul L. Flint,¹ Jason L. Schamber²

¹aUnited States Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508,
²bUnited States Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508,

Abstract

We seeded experimental plots with number 4 lead pellets and sampled these plots for 10 years to assess the settlement rate of pellets in tundra wetland types commonly used by foraging waterfowl. After 10 years, about 10% of pellets remained within 6 cm of the surface, but >50% remained within 10 cm. We predict that spent lead pellets will eventually become unavailable to waterfowl; however, it will likely require >25 years for all pellets to exceed depths at which waterfowl species may forage.

Citation Download Citation

Paul L. Flint and Jason L. Schamber "Long-Term Persistence of Spent Lead Shot in Tundra Wetlands," Journal of Wildlife Management 74(1), 148-151, (1 January 2010). https://doi.org/10.2193/2008-494

Published: 1 January 2010