Tuesday, September 17, 2019

Decline of brown teal ( Anas chlorotis ) in Northland, New Zealand, 1988-99

TitleDecline of brown teal ( Anas chlorotis ) in Northland, New Zealand, 1988-99
Publication TypeJournal Article
Year of Publication2001
AuthorsParrish, R, Williams, M
JournalNotornis
Volume48
Issue3
Pagination131-136
Type of Articlepaper
KeywordsAnas chlorotis, brown teal, Northland: New Zealand, population, status
Abstract

Numbers of brown teal (Anas chlorotis) present at summer flock sites in Northland, New Zealand declined 65% during 1988-99 and the species' principal rangc contracted to three enclaves locatcd along 20 km of the eastern coast. Most populations underwent a period of pdual decline followed by an abrupt crash, symptomatic of prolonged recruitment failure. Drought-induced habitat and landscape change is proposed as an important agcnt of decline in two formerly large populations at Clendon Cove and Tutaernatai. Extirpation in Northland appears imminent.

Full Text
AttachmentSize
PDF icon Full Article375.17 KB