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Causes of the demise of a breeding population of titi on Mangaia, Cook Islands

TitleCauses of the demise of a breeding population of titi on Mangaia, Cook Islands
Publication TypeJournal Article
Year of Publication2001
AuthorsMedway, DG
JournalNotornis
Volume48
Issue3
Pagination137-144
Type of Articlepaper
Keywordsblack-winged petrel, Cook Islands, extirpation, human harvesting, mammalian predators, Mangaia, Pterodroma nigripennis, titi
Abstract

A species of small procellariid known locally as titi, probably the black-winged petrel (Pterodroma nigripennis), nested into the historic period in burrows in the volcanic soil ofthe uplands of Mangaia in the southern Cookgroup. The demise ofthis titi as a breeding bird on Mangaia was probably caused by a combination of the detrimental effects of human harvesting and various introduced mammalian predators which were present on Mangaia after the arrival of missionaries in the early nineteenth century.

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