Burrow occupancy in Westland petrels ( Procellaria westlandica )Submitted by osnz-admin on Tue, 03/15/2011 - 22:45
|Title||Burrow occupancy in Westland petrels ( Procellaria westlandica )|
|Publication Type||Journal Article|
|Year of Publication||2003|
|Authors||Waugh, SM, Cabrera, H, Wood, GC, Davis, LS|
|Type of Article||paper|
|Keywords||burrow occupancy, burrow-scope, Procellaria westlandica, Westland Petrel|
The Westland petrel (Procellaria westlandica) is endemic to New Zealand, and nests within a restricted area of the West Coast of the South Is. Surveys of burrow occupancy rate in 2 colonies in 2001 using burrow-scopes showed an average of 21% of burrows contained a chick or egg. The rate was c. 50% of that recorded for other burrowing seabirds and surveyed using burrow-scopes. These findings may suggest that the breeding population may have declined in recent years, or that a large group of non-breeding birds maintain territories on the colonies. Further work is planned to test the 2 opposing hypotheses.