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Sex-specific dive characteristics in a sexually size dimorphic duck

Osterrieder,SK, Weston,MA, Robinson,RW and Guay,PJ 2014, Sex-specific dive characteristics in a sexually size dimorphic duck, Wildfowl, vol. 64, pp. 126-131.

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Title Sex-specific dive characteristics in a sexually size dimorphic duck
Author(s) Osterrieder,SK
Weston,MAORCID iD for Weston,MA orcid.org/0000-0002-8717-0410
Robinson,RW
Guay,PJ
Journal name Wildfowl
Volume number 64
Start page 126
End page 131
Publisher Wildfowl and Wetlands Trust
Place of publication Slimbridge, England
Publication date 2014
ISSN 0954-6324
0886-0637
Keyword(s) Biziura lobata
Diving physiology
Musk Duck
Niche partitioning
Summary Dive duration generally increases with body size in animals including wildfowl. Therefore, diving behaviour may vary between the sexes in sexually size dimorphic species, such as the extremely sexually size dimorphic Musk Duck Biziura lobata. However, a previous study reports longer dives in the smaller sex (females) when breeding. In this study, non-breeding male Musk Ducks dived for significantly longer periods than females and tended to have longer inter-dive intervals, conforming to the general patterns described for other species. The differences in dive behaviour we describe may be explained by niche partitioning or differential oxygen requirements or uptake rates by the sexes.
Language eng
Field of Research 060201 Behavioural Ecology
Socio Economic Objective 960807 Fresh
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Wildfowl and Wetlands Trust
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30068310

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.