Thursday, December 13, 2018

Estimates of local occupancy for native land birds from the New Zealand bird atlases

TitleEstimates of local occupancy for native land birds from the New Zealand bird atlases
Publication TypeJournal Article
Year of Publication2018
AuthorsWalker, S, Monks, A
JournalNotornis
Volume65
Issue4
Pagination223-236
Type of ArticleFull article
Keywordsoccupancy models, standardised bird atlas data
Abstract

We describe the creation of a standardised set of data from the two national atlases of bird distribution compiled by the Ornithological Society of New Zealand. The data provide estimates of local occupancy probability for each of 64 taxa of native land birds, in each of 2,155 grid squares covering the North, South, and Stewart islands, in two measurement periods (September 1969 – December 1979, and December 1999 – November 2004). Because these local occupancy estimates were derived on an identical basis for each bird taxon and each time period, they enable unbiased comparisons between time periods and among species. Links to permanent data repositories of the original and standardised data are provided.

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