Rangiauria Pitt Island (28068)
New Zealand, Australasia
Site overview
KBA status: confirmed
Global KBA criteria: A1a, B1, B2
Year of last assessment: 2014
National site name: Rangiauria Pitt Island
Central coordinates: Latitude: -44.2270, Longitude: -176.2217
System: marine, terrestrial
Elevation (m): 0 to 241
Area of KBA (km2): 28.00138
Protected area coverage (%): 94.55
KBA classification: Global
Legacy site: Yes
Site details
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs.
Additional biodiversity: IBA Trigger species: Chatham Island Shag, Pitt Island Shag, Chatham Oystercatcher, Red-fronted Parakeet, Weka (Buff Weka) Besides the trigger species the following species are confirmed or likely to be breeding: Little Penguin, Sooty Shearwater, Common Diving Petrel, Broad-billed Prion, Brown Skua, Southern Black-backed Gull, Red-billed Gull, White-fronted Tern, White-faced Heron, Mallard, Pukeko, Australasian Harrier, Spur-winged Plover, Welcome Swal-low, Chatham Island Pipit, Shining Cuckoo, Silvereye, Chatham Island Warbler, Chatham Island Tomtit, Chatham Island Fan-tail, Chatham Island Tui, Skylark, Hedge Sparrow, Blackbird, Song Thrush, Yellowhammer, Chaffinch, Greenfinch, Goldfinch, Redpoll, House Sparrow, Starling. Other species recorded: Turnstone.
Other site values: The sites are on private land with access controlled by landowners
Habitats
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Introduced Vegetation | 20 | |
| Marine Coastal/Supratidal | 20 | |
| Marine Intertidal | 20 | |
| Shrubland | 20 | |
| Forest | 20 |
Threats
Summary of threats to biodiversity at KBA: Human disturbance – Yes - The sites are on private land with access controlled by landowners Predation by alien species – Yes - Habitat loss or degradation – No Contamination – No Natural disaster – No Other – No
Additional information
References: Aikman, H.; Miskelly, C. 2004. Birds of the Chatham Islands. Wellington, Department of Conservation. Bell M., Bell, D. 2000. Census of three shag species in the Chatham Islands. Notornis 47: 148-153 Bell, M. 2012. Shag interactions with commercial rock lobster pot and trap fishing methods in the Chatham Islands. Wildlife Management International for DOC. Contract 4342 (INT2011-02 - Shag interactions with commerxial pot and trap fishing methods in New Zealand). 24pp. Bester, A.J., Chateris, M. 2005. The second census of Chatham Island shag and Pitt Island shag - are numbers declining. No-tornis 52: 6-10 Crockett, D.E. 1994. Rediscovery of Chatham Island taiko Pterodroma magentae. Notornis 41 (supplement): 49-60 Debski, I., Bell, M., Palmer, D. 2012. Chatham Island and Pitt Island shag census 2011. Contract MCSPO2010-02, Department of Conservation, Wellington. Imber, M.J. 1994. Seabirds recorded at the Chatham Islands, 1960 to May 1993. Notornis 41: 97-108