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Timing of breeding and diet of the Black-faced cormorant Phalacrocorax fuscescens

Taylor, Andrew R., Dann, Peter and Arnould, John P.Y. 2013, Timing of breeding and diet of the Black-faced cormorant Phalacrocorax fuscescens, Marine ornithology, vol. 41, no. 1, pp. 23-27.

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Title Timing of breeding and diet of the Black-faced cormorant Phalacrocorax fuscescens
Author(s) Taylor, Andrew R.
Dann, Peter
Arnould, John P.Y.
Journal name Marine ornithology
Volume number 41
Issue number 1
Start page 23
End page 27
Total pages 5
Publisher Pacific Seabird Group
Place of publication McKinleyville, Calif.
Publication date 2013
ISSN 1018-3337
2074-1235
Keyword(s) Bass strait
phalacrocorax fuscescens
piscivores
seabirds
winter breeding
Summary Previous anecdotal reports have suggested that Black-faced Cormorant Phalacrocorax fuscescens breeds only in winter in southeastern Australia, but detailed reports confirming this are lacking. Here we examine the timing of breeding in Black-faced Cormorants at Notch Island in northern Bass Strait in 2006. Peak laying occurred during winter (ca 26 July). The diet of Black-faced Cormorants was predominantly fish (97% of identified prey) and varied between breeding and post-breeding periods. Black-faced Cormorants consumed a total of 14 different species with four species having a frequency of occurrence in the diet of ?5% during the breeding season and six species during the post-breeding period. We provide data for the first time on the chronology of breeding of Black-faced Cormorants in one year and give a preliminary description of their diet based on pellet analyses. We propose that late winter breeding may be a strategy to avoid the high ambient temperatures in northern Bass Strait during summer, the associated higher thermoregulatory costs for adults and the increased mortality for chicks.
Language eng
Field of Research 060201 Behavioural Ecology
060308 Life Histories
060809 Vertebrate Biology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, Pacific Seabird Group
Persistent URL http://hdl.handle.net/10536/DRO/DU:30057640

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