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Diet of common diving-petrels (Pelecanoides Urinatrix Urinatrix) in Southeastern Australia during chick rearing

Schumann, Nicole, Dann, Peter and Arnould, John P.Y. 2008, Diet of common diving-petrels (Pelecanoides Urinatrix Urinatrix) in Southeastern Australia during chick rearing, Waterbirds, vol. 31, no. 4, pp. 620-624.

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Title Diet of common diving-petrels (Pelecanoides Urinatrix Urinatrix) in Southeastern Australia during chick rearing
Author(s) Schumann, Nicole
Dann, Peter
Arnould, John P.Y.
Journal name Waterbirds
Volume number 31
Issue number 4
Start page 620
End page 624
Publisher Waterbird Society
Place of publication De Leon Springs, Fla.
Publication date 2008-12
ISSN 1524-4695
1938-5390
Keyword(s) common diving-petrel
diet
Nyctiphanes australis
Pelecanoides urinatrix
Summary Unlike conspecifics in the subantarctic region, which typically begin breeding in mid-spring to summer, Common Diving-petrels Pelecanoides urinatrix urinatrix in southeastern Australia (towards the northern limit of the species' distribution) commence breeding mid winter. Knowledge of the foraging ecology of this species is crucial to understanding the factors that influence its timing of breeding in the region, yet there is currently little information available. Analysis of 43 stomachs of breeding adults, collected opportunistically after they were killed in a fire which burned through their colony, indicated that their diet was dominated by two taxa: a euphausiid Nyctiphanes australis which comprised 87% of the diet by number; and a hyperiid amphipod Themisto australis which constituted a further 12.5%. Mean lengths (±SE) of N. australis (n = 39) and T. australis (n = 41) were 12 mm (±0.3) and 5.2 mm (±0.2), respectively. The importance of N. australis in the diet of Common Diving-petrels is discussed in relation to their timing of breeding and the euphausiid's potential role in the Bass Strait pelagic ecosystem.
Notes Online access to full-text content (HTML and PDF) is only available to users at subscribing institutions : http://www.bioone.org/doi/full/10.1675/1524-4695-31.4.620?cookieSet=1
Language eng
Field of Research 060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
Socio Economic Objective 960507 Ecosystem Assessment and Management of Marine Environments
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2008, Waterbird Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017913

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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