The decline of North Island Weka ( Gallirallus australis greyi ) at Parekura Bay, Bay of IslandsSubmitted by osnz-admin on Tue, 03/15/2011 - 22:43
|Title||The decline of North Island Weka ( Gallirallus australis greyi ) at Parekura Bay, Bay of Islands|
|Publication Type||Journal Article|
|Year of Publication||1998|
|Authors||Beauchamp, AJ, Berkum, BV, Closs, MJ|
|Type of Article||paper|
|Keywords||decline, Gallirallus australis greyi, North Island Weka|
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.