Predator Free Southland was created with the goal of protecting biodiversity across the region by targeting a range of species including rats, possums, stoats, ferrets, weasels, feral cats and hedgehogs.
It came about on the back of discussions that began in 2018 and included representatives from four rūnanga of Ngāi Tahu, Doc and all four Southland councils.
In October, an Environment Southland report revealed the programme had been put on hold for "a few months" while an assessment was done on what was achievable under existing budgets.
Further details have since been given, with Environment Southland biosecurity pest animals team leader Dave Burgess saying the governance group planned to meet before the end of the year to make decisions.
"Until then, we do not know what the future of Predator Free Southland will look like.
"Financial factors have impacted the project’s progress."
Mr Burgess said the decision to pause the programme was made in July.
Doc Murihiku operations manager John McCarroll said initial funding for the project had come from Jobs for Nature, partner agencies and the Lotteries Grants Board.
While further funding had been possible, Predator Free Southland was unable to match a required one-for-one funding ratio, he said.
"Without the funding for a landscape-wide project, the team has been focusing on community group support."
The initiative came about following conversations with the community about a predator-free Bluff concept in 2018.
A governance group was formed to create a plan, with key stakeholders signing on in 2020 and 2021.
A project co-ordinator was then employed to collaborate between community groups and agencies in the region as well as create an action plan on co-funding.
Halting the programme would not impact Predator Free Rakiura — a programme which began in 2019 to rid Stewart Island/Rakiura of pests.
In May, an update for that initiative provided several key aims for the next 12 months, including finalising and progressing plans, delivering a research programme with Manaaki Whenua and working with Ngāi Tahu on aspirations for the island.
■LDR is local body journalism co-funded by RNZ and NZ On Air