Study

Large-scale control of introduced mammalian predators improves kaka Nestor meridionalis breeding success on North and South Islands, New Zealand

  • Published source details Moorhouse R., Greene T., Dilks P., Powlesland R., Moran L., Taylor G., Jones A., Knegtmans J., Wills D., Pryde M., Fraser I., August A. & August C. (2003) Control of introduced mammalian predators improves kaka Nestor meridionalis breeding success: reversing the decline of a threatened New Zealand parrot. Biological Conservation, 110, 33-44

Actions

This study is summarised as evidence for the following.

Action Category

Control predators not on islands for parrots

Action Link
Bird Conservation
  1. Control predators not on islands for parrots

    A replicated, controlled trial in New Zealand (Moorhouse et al. 2003) found that the nesting success of kakas Nestor meridionalis was significantly higher at three sites with control (80–87% of 70 nests successful) than at three unmanaged sites (10–38% of 43 nests). Predation rate of nesting females was also significantly lower at sites with predator control (5% of 38 tracked females vs. 65% of 17). Stoats Mustela erminea, common brushtail possums Trichosurus vulpecula and rats Rattus spp. were controlled with trapping and poisoning with 1080 sodium monofluoroacetate and anticoagulents. Data comes from 1996-2000 for five sites and 1984-1996 for one (unmanaged) site.

     

Output references

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