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Movements of a nomadic waterfowl, Grey Teal Anas gracilis, across inland Australia – results from satellite telemetry spanning fifteen months

Roshier, D. A., Klomp, N. I. and Asmus, M. 2006, Movements of a nomadic waterfowl, Grey Teal Anas gracilis, across inland Australia – results from satellite telemetry spanning fifteen months, Ardea, vol. 94, no. 3, pp. 461-475.

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Title Movements of a nomadic waterfowl, Grey Teal Anas gracilis, across inland Australia – results from satellite telemetry spanning fifteen months
Author(s) Roshier, D. A.
Klomp, N. I.
Asmus, M.
Journal name Ardea
Volume number 94
Issue number 3
Start page 461
End page 475
Publisher Nederlandse Ornithologische Unie (Netherlands Ornithological Union)
Place of publication Den Burg, Netherlands
Publication date 2006
ISSN 0373-2266
Summary We used lightweight satellite transmitters to follow the movements of 17 Grey Teal Anas gracilis between September 2003 and November 2004 in two contrasting landscapes, the agricultural districts of southern Australia and the desert landscapes of the interior. Tagged birds moved large distances (up to 343 km) between occupied sites in a short period (hours), remained in the vicinity of those sites for extended periods (months), ventured up to 453 km from their point of release and travelled more than 2000 km in one year. We describe patterns of movement in a nomadic waterfowl for 15 months from September 2003, a period of severe drought. Based on the current analysis there appears to be no remarkable difference in the observed patterns of movement of those released in the agricultural landscapes and those released in the desert. As in waterfowl elsewhere, movements appear to occur in response to changes in local food abundance that threaten survival or the imperative to move in order to breed successfully. In Grey Teal, the proximate cues for movement transcend the local landscape and some birds are responding to temporary cues hundreds of kilometres distant. This is in contrast to the universal seasonal cues associated with migration systems elsewhere.
Language eng
Field of Research 060801 Animal Behaviour
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, Nederlandse Ornithologische Unie
Persistent URL http://hdl.handle.net/10536/DRO/DU:30022064

Document type: Journal Article
Collection: School of Ecology and Environment
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