Coromandel Deer Incursion

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The place

Protecting native ecosystems in Southern Coromandel

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The Coromandel Deer Incursion Response Management Unit covers the southern Coromandel Peninsula, from Karangahake Gorge (SH2) to the Kōpū-Hikuai Road (SH25A). The area includes the southern Coromandel Range, a rugged landscape of extensive native forest, high biodiversity values, and a mix of conservation land, production forestry, farmland, and rural properties.

It contains important habitats for threatened species, including the nationally vulnerable Archey’s frog within the Otahu Ecological Area, as well as elegant gecko, Kirk’s tree daisy, and plumed greenhood orchid (Pterostylus tasmanica). Deer establishment within this landscape poses a significant risk to these and wider conservation values.

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The vision

The long-term goal for the Coromandel Wild Animal Management Unit is the eradication of both wild goats and deer; however, the immediate priority is the removal of all known wild deer from the southern Coromandel, where small but expanding populations of fallow deer are believed to have originated from isolated, likely illegal, liberations.

While goat management remains focused on sustained suppression across the Coromandel Range, deer eradication is considered both urgent and achievable while populations remain localised. This operational plan supports the wider Deer-free Coromandel programme by preventing deer from becoming established across the peninsula, improving understanding of their distribution, and strengthening the case for future eradication funding and community support.

 

What we’ll do

The operational approach is to implement a progressive zero-density strategy, beginning with an initial surveillance and control sweep across the southern Coromandel. This phase will focus on identifying the full extent of deer distribution, verifying known populations, and undertaking intensive control on accessible large land blocks to rapidly reduce deer numbers.

Surveillance will be supported by a network of trail cameras, hunter observations, and where appropriate, thermal drone reconnaissance. Information gathered through field operations and stakeholder engagement will be captured within a GIS platform to improve understanding of deer presence, population dynamics, movement pathways, and areas at risk of further incursion. This intelligence will guide ongoing control efforts and support the longer-term goal of deer eradication from the southern Coromandel.

Karangahake Gorge Karangahake Gorge
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Why it matters

This work is important because deer populations in the southern Coromandel remain localised, making eradication both achievable and cost-effective before they expand further. As deer continue to increase their range across New Zealand, there will be no better opportunity than now to prevent their establishment on the Coromandel.

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A permanent legacy

The peninsula’s geography limits reinvasion opportunities and makes a Deer-free Coromandel a realistic long-term goal. Early intervention will protect native ecosystems and avoid escalating future control costs.

How you can help

Achieving a Deer-free Coromandel will require sustained effort, strong partnerships with landowners, iwi, community groups, and agencies, and long-term investment. Support is needed to fund surveillance, monitoring, and on-the-ground operations to locate and remove deer before they become firmly established across the peninsula.

Together, we have a rare opportunity to prevent deer from gaining a permanent foothold in one of New Zealand’s most important natural landscapes. The Coromandel’s peninsula geography creates a naturally defensible boundary, making eradication both realistic and achievable if action is taken now. By acting early, we can protect native ecosystems, reduce future control costs, and leave a lasting conservation legacy for future generations.

This opportunity supports DOC’s nationally coordinated wild animal management programme, contributing to the goal of reducing browsing pressure to protect and restore New Zealand’s native ecosystems.

Take action

One island can prove what protects them all.

Deer browse Learn how

Donate to Coromandel Deer Incursion

Support the long-term goal of deer eradication from the southern Coromandel.

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This project is led by the Department of Conservation under its nationally coordinated wild animal management programme. NZ Nature Fund manages charitable donations for this project. NZ Nature Fund holds donations in a dedicated charity account and disburses against project milestones. All gifts are tax-deductible in New Zealand. Registered Charity CC32894.

Pest detection photo courtesy of DOC.

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