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Breaksea Island (Fiordland)

Coordinates: 45°34′45″S 166°38′14″E / 45.57917°S 166.63722°E / -45.57917; 166.63722
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Breaksea Island
Kā Huruhuru-o-koekoeā
Breaksea Island (center) - from the South-West.
Breaksea Island is located in New Zealand
Breaksea Island
Breaksea Island
Geography
LocationFiordland National Park
Coordinates45°34′45″S 166°38′14″E / 45.57917°S 166.63722°E / -45.57917; 166.63722
Area1.56 km2 (0.60 sq mi)[1]
Highest elevation350 m (1150 ft)
Administration
Demographics
Population0

Breaksea Island is a rugged 1.6 km2 (1 sq mi) island in the southwest of New Zealand, and is part of Fiordland National Park. Its highest point is 350 m (1,148 ft) asl and it lies about 2 km (1.2 mi) from the mainland in the entrance to Breaksea Sound, north of the much larger Resolution Island. It is covered in temperate rainforest and was the site of one of the first successful campaigns to eradicate rats from a sizeable island.

Rat eradication

The pioneering eradication of brown rats, using brodifacoum in poison baits, was carried out by the New Zealand Department of Conservation (DOC) in May and June 1988 following the success of a pilot campaign on the adjacent, and much smaller (9 ha or 22 acres), Hāwea Island in 1986. Breaksea is six times the size of the previous largest island on which rat eradication had been successful. Since then, DOC has overseen the eradication of a suite of introduced animals from several other islands, the largest being Campbell Island at 113 km2 (44 sq mi).[2][3]

Fauna

Fiordland crested penguins breed on Breaksea. Since rat eradication various threatened species of New Zealand's native fauna have been introduced, or reintroduced, there. These include the tieke (saddleback), mōhua (yellowhead), Fiordland skink and knobbled weevils.

Fauna of Fiordland Island
  • Fiordland Penguin (Eudyptes pachyrhynchus)
    Fiordland Penguin (Eudyptes pachyrhynchus)
  • Yellowhead (Mohoua ochrocephala)
    Yellowhead (Mohoua ochrocephala)
  • New Zealand South Island Robin (Petroica australis australis)
    New Zealand South Island Robin (Petroica australis australis)

See also

References

  • Taylor, R.H. & Thomas, B.W. (1989). "eradication of Norway Rats (Rattus norvegicus) from Hawea Island, Fiordland, using brodifacoum" (PDF). New Zealand Journal of Ecology. 12: 23–32.
  • Wilson, Kerry-Jayne (2004). Flight of the Huia. Christchurch: Canterbury University Press. ISBN 978-0-908812-52-3.
  • "Fiordland Islands restoration: project implementation". NZ Department of Conservation. Archived from the original on 20 February 2013. Retrieved 18 February 2010.

Notes

  1. ^ "Tamatea/Dusky Sound convervation and restoration plan" (PDF). Department of Conservation. p. 20. Retrieved 17 October 2017.
  2. ^ Taylor & Thomas (1989).
  3. ^ Wilson (2004), pp.282-283.
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