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Establishing Winter Origins Of Migrating Lesser Snow Geese Using Stable Isotopes, Viviane Hénaux, Larkin A. Powell, Mark P. Vrtiska, Keith A. Hobson
Establishing Winter Origins Of Migrating Lesser Snow Geese Using Stable Isotopes, Viviane Hénaux, Larkin A. Powell, Mark P. Vrtiska, Keith A. Hobson
School of Natural Resources: Faculty Publications
Increases in Snow Goose (Chen caerulescens) populations and large-scale habitat changes in North America have contributed to the concentration of migratory waterfowl on fewer wetlands, reducing resource availability, and enhancing risks of disease transmission. Predicting wintering locations of migratory individuals is critical to guide wildlife population management and habitat restoration. We used stable carbon (δ13C), nitrogen (δ 15N), and hydrogen (δ2H) isotope ratios in muscle tissue of wintering Snow Geese to discriminate four major wintering areas, the Playa Lake Region, Texas Gulf Coast, Louisiana Gulf Coast, and Arkansas, and infer the wintering locations …