Wetland selection by female Ring-Necked Ducks (Aythya collaris) in the Southern Atlantic Flyway

By: , and 



On the wintering grounds, wetland selection by waterfowl is influenced by spatiotemporal resource distribution. The ring-necked duck (Aythya collaris) winters in the southeastern United States where a disproportionate amount of Atlantic Flyway ring-necked duck harvest occurs. We quantified female ring-necked duck selection for wetland characteristics during and after the 2017-2018 and 2018-2019 waterfowl hunting seasons using discrete choice modeling under a Bayesian framework. Relative probability of selection was primarily influenced by characteristics at the local wetland scale. Relative probability of selection was higher for flooded agriculture and vegetated wetlands than open water and was positively influenced by wetland area during the winter. After the hunting season, the relative probability of selection decreased for flooded agriculture but increased for vegetated wetlands, and the effect of wetland area decreased in magnitude. We attribute changes in selection during and after the hunting season to dietary shifts related to migratory preparation, resource depletion, and reproductive pairing. Understanding the wetland characteristics that wintering waterfowl select, and the spatial scale at which selection occurs, is important for informing effective wetland management and waterfowl harvest practices.

Study Area

Publication type Article
Publication Subtype Journal Article
Title Wetland selection by female Ring-Necked Ducks (Aythya collaris) in the Southern Atlantic Flyway
Series title Wetlands
DOI 10.1007/s13157-021-01485-8
Volume 41
Year Published 2021
Language English
Publisher Springer
Contributing office(s) Eastern Ecological Science Center
Description 84, 13 p.
Country United States
State Florida, Georgia
Other Geospatial Southern Atlantic Flyway
Google Analytic Metrics Metrics page
Additional publication details