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

Birds New Zealand

Greene, BS¹ 

关键词: distribution;    eradication;    isl;    petrel;    population;    rodent;    seabird;   

DOI  :  

学科分类：动物科学

来源: Ornithological Society of New Zealand Inc.

【 摘 要 】

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.

【 授权许可】

Unknown