Updating movement estimates for American black ducks (Anas rubripes)

Understanding migratory connectivity for species of concern is of great importance if we are to implement management aimed at conserving them. New methods are improving our understanding of migration; however, banding (ringing) data is by far the most widely available and accessible movement data fo...

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Published inPeerJ (San Francisco, CA) Vol. 4; p. e1787
Main Authors Robinson, Orin J, McGowan, Conor P, Devers, Patrick K
Format Journal Article
LanguageEnglish
Published United States PeerJ. Ltd 10.03.2016
PeerJ, Inc
PeerJ Inc
Subjects
African Americans
American black duck
Analysis
Anas rubripes
Animal Behavior
Banding data
Bayesian analysis
Connectivity
Conservation Biology
Demography
Ducks
Ecology
Environmental protection
Isotopes
Management
Migration
Migratory connectivity
Migratory species
Movement estimation
Population
Studies
Wildlife conservation
Banding data
Migratory connectivity
Bayesian analysis
American black duck
Movement estimation
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Summary:Understanding migratory connectivity for species of concern is of great importance if we are to implement management aimed at conserving them. New methods are improving our understanding of migration; however, banding (ringing) data is by far the most widely available and accessible movement data for researchers. Here, we use band recovery data for American black ducks (Anas rubripes) from 1951-2011 and analyze their movement among seven management regions using a hierarchical Bayesian framework. We showed that black ducks generally exhibit flyway fidelity, and that many black ducks, regardless of breeding region, stopover or overwinter on the Atlantic coast of the United States. We also show that a non-trivial portion of the continental black duck population either does not move at all or moves to the north during the fall migration (they typically move to the south). The results of this analysis will be used in a projection modeling context to evaluate how habitat or harvest management actions in one region would propagate throughout the continental population of black ducks. This analysis may provide a guide for future research and help inform management efforts for black ducks as well as other migratory species.
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ISSN:2167-8359
2167-8359
DOI:10.7717/peerj.1787