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

  • Publication Type

    Journal

  • Publication Year

    2015

  • Author(s)

    B.S. Greene; G.A. Taylor; R. Earl

  • Journal Name

    Notornis

  • Volume, Issue

    62, 3

  • Pagination

    143-161

  • Article Type

    Paper

Keywords

distribution; eradication; island; petrel; population; rodent; seabird


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

Notornis, 62 (3), 143-161

B.S. Greene; G.A. Taylor; R. Earl (2015)

Article Type: Paper

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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.