Mapping the suitability range of Bactrocera dorsalis (Oriental Fruit Fly) with reference to New Zealand
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Authors
Tapp, A.
Aguilar, Glenn
Aguilar, Glenn
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2025-11-06
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Conference Contribution - Poster Presentation
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Auckland region (N.Z.)
New Zealand
Oriental fruit fly (Bactrocera dorsalis)
invasive species
mapping
New Zealand
Oriental fruit fly (Bactrocera dorsalis)
invasive species
mapping
ANZSRC Field of Research Code (2020)
Citation
Tapp, A., & Aguilar, G. (2025, November, 6) Mapping the suitability range of Bactrocera dorsalis (Oriental Fruit Fly) with reference to New Zealand[Poster presentation]. School of Environmental and Animal Sciences Research Symposium 2025, Auckland, New Zealand
https://hdl.handle.net/10652/7043
Abstract
Bactrocera dorsalis (Oriental Fruit Fly) is a widely known invasive species for its adaptability to different environments and ability to host over 250 fruits and vegetables. In January and February 2025, there were two instances where a male Oriental Fruit Fly was found and eradicated in the Auckland region, proving its potential and risk of establishing in New Zealand. This study aims to determine where the Oriental Fruit Fly is most likely to establish and spread in New Zealand using a species distribution model. By using ArcGIS Pro and Maxent, prediction models can be made to highlight the areas in New Zealand where they are likely to establish. Preliminary findings show that the Oriental Fruit Fly is most likely to establish within the North Island, specifically in the Auckland region, where the annual temperatures and precipitation are higher than in other parts of the country. It is vital to know where the Oriental Fruit Fly is most likely to spread and establish in New Zealand because if it establishes, there will be direct effects on New Zealand's biosecurity and our agricultural exports. Our study suggests that biosecurity measures and trap checks should be increased within the Auckland region, especially during the summer months, when the temperature is most optimal for the reproduction of the Oriental Fruit Fly.
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