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The following schedule is subject to change (as of October 11, 2016). Please check back for updates. For more information about this meeting, go to: www.seafwa.org/conferences/2016
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Wednesday, October 19 • 11:20am - 11:40am
Wildlife. A comprehensive review of Mottled Duck demographics during the breeding season

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AUTHORS: Kevin M. Ringelman, Louisiana State University

ABSTRACT: Mottled Ducks (Anas fulvigula) are endemic to the Gulf Coast of the southern United States and serve as a flagship species for conserving coastal marsh habitats. The eastern population of mottled ducks (FL) appears to be increasing, while along the western gulf coast populations are stable (LA) or declining (TX). This variation may be explained in part by the substantial range-wide variation documented in breeding season demographics. Breeding season survival of adult females appears to be higher in Florida (especially urban areas) than in Texas, where tradeoffs between survival and nesting propensity likely depend on environmental conditions. Across the entire range of the mottled duck, average nest success is near the 15% level thought to be required to sustain mid-continent Mallard populations. However, there is substantial variation in nest success, with some studies documenting success rates as high as 28% in urban habitats, or as low as 6% in agricultural areas. Here, we provide a comprehensive review of mottled duck demographics during the breeding season, highlighting emerging patterns and drawing attention to important knowledge gaps.

Wednesday October 19, 2016 11:20am - 11:40am
Riverview B

Attendees (4)