Monday, July 13, 2020

The decline of North Island Weka ( Gallirallus australis greyi ) at Parekura Bay, Bay of Islands

TitleThe decline of North Island Weka ( Gallirallus australis greyi ) at Parekura Bay, Bay of Islands
Publication TypeJournal Article
Year of Publication1998
AuthorsBeauchamp, AJ, Berkum, BV, Closs, MJ
JournalNotornis
Volume45
Issue1
Pagination31-43
Type of Articlepaper
Keywordsdecline, Gallirallus australis greyi, North Island Weka
Abstract

The North Island Weka (Gallirallus australis greyi) population at Parekura Bay was monitored in 1991-95, during a long dry El Nino event. Adult Weka had declined from ~400, in February 1987 (Beauchamp 1988), to 47-63 Weka in Parekura Bay and Whangamumu areas in June 1991. By March 1995 there were only three Weka left there. Enhanced production of young Weka was insufficient to prevent decline. Known mortality factors were road kills, Timms traps and dogs and stoats. Throughout the study the population lacked females. A "crowing call" by males was identified as associated with mate loss and mate finding.

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