Sunday, July 23, 2017

Distribution, population status and trends of grey-faced petrel (Pterodroma macroptera gouldi) in the northern North Island, New Zealand

TitleDistribution, population status and trends of grey-faced petrel (Pterodroma macroptera gouldi) in the northern North Island, New Zealand
Publication TypeJournal Article
Year of Publication2015
AuthorsGreene, BS, Taylor, GA, Earl, R
JournalNotornis
Volume62
Issue3
Pagination143-161
Type of ArticleFull Article
Keywordsdistribution, eradication, island, petrel, population, rodent, seabird
Abstract

The distribution, status and trends of grey-faced petrel (Pterodroma macroptera gouldi) populations are summarised from historical records from as early as the 1800’s, but predominantly over a 40 year period from the 1970’s and 1980’s to the present day. We tallied the most recent of 104 island population estimates to give a total range of 72,398-286,268 burrows over a minimum area of 37,967 ha. On predator-free islands (n = 9) during winter, the mean burrow occupancy rate was 60% (± 18 % SD). Fewer than 1000 burrows were detected from 20 mainland sites over an unspecified area. Implications for the conservation of this species are discussed.

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