Breeding biology of Fluttering Shearwaters (Puffinus gavia) on Burgess Island in northern New Zealand

Berg, M., Linnebjerg, J. F., Ismar, Stefanie M. H., Gaskin, C. P. and Rayner, M. J. (2017) Breeding biology of Fluttering Shearwaters (Puffinus gavia) on Burgess Island in northern New Zealand Emu - Austral Ornithology . DOI 10.1080/01584197.2017.1366831.

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The fluttering shearwater (Puffinus gavia) is an abundant seabird endemic to breeding colonies in northern and central New Zealand. The species remains poorly studied, and here we present the first study to examine its breeding biology in detail. Fluttering shearwater nests were monitored daily from laying in September 2015 to fledging in January 2016 on Burgess Island (Mokohinau Islands group) in the outer Hauraki Gulf, northern New Zealand. Burrows were generally simple and non-branched. Eggs were laid over a period of 39 days with laying peaking 12th September. Incubation was 50 ± 3.7 days and chicks fledged after an average of 74 ± 4.3 days, from late December to the end of January. Chick development corresponds to the pattern observed for other Procellariiformes, gaining body mass rapidly to a maximum of 115% of adult mass, and then losing weight until fledging. Chicks were fed most nights throughout chick-rearing, indicating adult birds have access to a stable food supply close to the colony. Breeding success was 63.8% and similar to other Puffinus species. This study provides baseline biological data for a poorly studied, yet common, New Zealand endemics seabird. The obtained new information will allow for further ecological investigations and improved conservation management for the species

Document Type: Article
Keywords: Breeding success, breeding phenology, chick growth, Procellariiformes, provisioning, seabirds
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-N Experimental Ecology - Food Webs
Refereed: Yes
DOI etc.: 10.1080/01584197.2017.1366831
ISSN: 0158-4197
Date Deposited: 21 Aug 2017 08:38
Last Modified: 03 Jan 2018 10:40

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