A overview shot of Mokohinau Islands

Island recovery left to happen naturally

Often when predators are eradicated from an island, it’s the first stage in planned reintroduction of native species to the sanctuary, but 26 years ago when the last introduced mammals removed from Burgess Island, the island was simply left, predator-free to recover naturally. Burgess Island/Pokohinu is the second-largest island in the Mokohinau group, near Great … Continue reading Island recovery left to happen naturally

A group stand outside

Award recognises huge efforts of tiny Arthur’s Pass community

Arthur’s Pass Wildlife Trust (APWT) doesn’t have a huge population to call on for its conservation work. There are only about 30 people living permanently in Arthur’s Pass village. But that hasn’t stopped them taking action to sort out the stoats that threatened their kea and great spotted kiwi – and now they’re celebrating a … Continue reading Award recognises huge efforts of tiny Arthur’s Pass community

Wrybill sitting on eggs

Rivercare group shares predator control outcomes

Eric Spurr and Nicholas Ledguard from the Ashley-Rakahuri Rivercare Group share the results of their group’s extensive predator control and bird monitoring work from 2000-2015 in a recently published issue of Notornis, the journal of the Ornithological Society of New Zealand. The Ashley River is a braided river in North Canterbury (near Rangiora) where eight … Continue reading Rivercare group shares predator control outcomes

Craig Gillies holds a ferret

Mentor’s advice still relevant for Craig Gillies

When Craig Gillies from DOC’s Hamilton office first started studying feral cats at the University of Auckland, he visited Department of Conservation ‘old hand’ Dick Veitch – since retired – who gave him a piece of advice that has stuck with him throughout his conservation career: “It’s not the ones you catch that matter,” said Dick, … Continue reading Mentor’s advice still relevant for Craig Gillies

A rat eating a snail

When rats come back…

Predator control operations are just that – they control mammal predators but do not completely or permanently remove them. Survivors breed and slowly rebuild the population numbers, aided by invasion of outsiders from neighbouring, uncontrolled areas taking advantage of an opportunity to upgrade to some better real estate: competition is less because the population is … Continue reading When rats come back…

Stoat on leaf litter. Image credit: Nga Manu.

Genetic profiling reveals source of invaders

Genetic profiling sounds like something from a crime thriller, but it is a modern scientific technique that can be used to better understand the dispersal behaviour of animals and relationships between various populations. Auckland’s various stoat population were recently the subject of a genetic profiling study which revealed intriguing information about connectivity and migration. Female … Continue reading Genetic profiling reveals source of invaders

A landscape shot of forest-covered Secretary island

Prof Carolyn King is enthusiastic supporter of community efforts

Professor Carolyn (Kim) King has spent a lifetime studying New Zealand’s introduced mammalian predators and is recognised as an international expert on mustelids. She’s worked closely with weasels in England, and stoats, ferrets, and rats in New Zealand, since starting as a grad student at Oxford in 1967. In that time she’s got to know … Continue reading Prof Carolyn King is enthusiastic supporter of community efforts

A kokako on a branch

Catching rats – getting the basics right

This is not about an amazing scientific breakthrough in new toxins or lures. It doesn’t reveal a science-fiction-like technological invention or genetic modification to wipe out predators. Such things happen rarely in the world of science. But what the following research projects show is that the old methods (with some modern modifications and monitoring techniques) … Continue reading Catching rats – getting the basics right

A kākā mid slight with it's wings fully extended

Pest-free future under the microscope

In a paper just published online (and not available in print until 2017), some of New Zealand’s top conservation scientists review the prospects for control and eventual eradication of our key mammalian pests. John Parkes, Graham Nugent, David Forsyth, Andrea Byrom, Roger Pech, Bruce Warburton and David Choquenot have written a comprehensive paper looking at … Continue reading Pest-free future under the microscope

Banded rail in mangrove

Rat plague threatens wetlands birds at Harbourview

Unbeknown to most Aucklanders, fernbirds and banded rails are living only 9km from their city centre. But Jeremy Painting has discovered that rats in ‘plague’ proportions are threatening nesting success. He tells his story… Although situated only 9km from downtown Auckland and tucked on the eastern side of the Te Atatu Peninsula, this reserve is relatively unknown … Continue reading Rat plague threatens wetlands birds at Harbourview

A brushtail possum on a branch

Landcare Research takes to the tree tops in latest possum research

Landcare Research scientists have published some fascinating research recently looking at the damage possums do the forest canopy and the surprisingly long time it takes for larger trees to recover. The first paper was published in Ecology and Evolution earlier this year and full access is freely available online. Penelope Holland, Andrew Gormley and Roger … Continue reading Landcare Research takes to the tree tops in latest possum research

Predator Free Wellington – the momentum gathers…

The momentum is growing and we’re super excited about it! Wellington has just announced its plans to be the world’s first predator-free capital. Go Wellington! The NEXT Foundation, Greater Wellington Regional Council and Wellington City Council are banding together to lead the initiative, but they won’t be doing it on their own. Success depends on … Continue reading Predator Free Wellington – the momentum gathers…

Simon next to a kakabeak plant

Goats, stoats and possum-fur coats: it’s carnage out there

Guest blog by Peter Heath It’s dead. Very dead, judging by the stench and the smooshed appearance of the remains – all fur, bones and black-brown gloopy stuff. A possum, maybe? A rabbit? “It’s not just townies,” Simon says, smiling at my obvious disgust. “There’s plenty of debate among farmers and bush dwellers, too. One … Continue reading Goats, stoats and possum-fur coats: it’s carnage out there

birds wading in a shallow stream with mountainous landscape in the distance

BRaid needs YOU!

Calling all Cantabrians and Southlanders – and any other South Islanders living near or exploring the region’s many braided river systems: rare and endangered river birds will be returning to the shingle river ‘islands’ to nest over the coming weeks. BRaid (Braided River Aid) is asking recreational river users to report locations of breeding colonies … Continue reading BRaid needs YOU!

Grant checking a tunnel

Grant Norbury – testing potential predator control techniques

A week or two ago, Alexandra-based Landcare Research scientist Grant Norbury found himself alone in the middle of the remote Mackenzie country, syringe in hand, squirting Vaseline onto rocks. He had to laugh. “It’s such a weird way to protect dotterels,” he says. Yes it is. But weirdness aside, the science behind his latest ‘chemical … Continue reading Grant Norbury – testing potential predator control techniques

GPS offers aerial application alternative

Science isn’t just about the big breakthroughs – although they’re great when they happen. Mostly it’s about challenging assumptions, testing alternatives and finding new and better ways to do things. Change is incremental and improvements are constantly being integrated into the way things are done. Something might be working already, but is there another way … Continue reading GPS offers aerial application alternative

Rapid eradication assessment – with online app

Just because you’re not catching anything, doesn’t necessarily mean all predators have been eradicated. Being certain that an area is completely predator-free is a challenge in island eradications where certainty is needed before endangered species can be reintroduced. But the problem also applies to mainland pest operations – how can you be sure you’ve been … Continue reading Rapid eradication assessment – with online app

Maungatautari cloudy landscape

Maungatautari – a Maori conservation perspective

The kiore appeared and the moa disappeared in pre-European times, but no-one can argue that the majority of Aotearoa/New Zealand’s predator and other pest introductions, habitat loss, extinctions and near-extinctions have happened in the last 150-200 years since pakeha settlers arrived. Recently published research by Matthew Harms looks at the Maori perspective in a community-based … Continue reading Maungatautari – a Maori conservation perspective

Kākā on a branch

Research shows what’s working for kiwi and kaka

Trap-wary stoats got caught out by a change in predator control regime according to research just published in July this year. The research, carried out by DOC scientists and published in the New Zealand Journal of Zoology, took place in the 9800 ha Whangarei Kiwi Sanctuary. The results showed why it’s good to mix it … Continue reading Research shows what’s working for kiwi and kaka

Wren on a branch

Trust aims to be predator free from Glenorchy to the Sea

Formed in 2013, the Routeburn Dart Wildlife Trust (RDWT) is inspired by a vision of being predator free “from Glenorchy to the sea,” says trustee Amanda Hasselman. Working in collaboration with the Department of Conservation and the Hollyford Trust, with substantial sponsorship from Air New Zealand, the Trust aims to bring back the birdsong to … Continue reading Trust aims to be predator free from Glenorchy to the Sea

A cat stalking something

Influencing conservation behaviour – the role of social psychology

How do you change public behaviour – for example, persuade cat owner’s to bring their pets inside? Is education the answer? Is education enough? If people just knew more about conservation issues would they become supporters and adopt conservation values themselves? Not necessarily. The reality is not everyone cares – and if they don’t care … Continue reading Influencing conservation behaviour – the role of social psychology

Close up of a tui on a red flax bush

Doing the sums – what are the best predator control options?

Research and innovation mean that the options for helping out our native species are increasing all the time. First, there were small, predator-free island sanctuaries, then bigger islands and then there was Zealandia – the world’s first fully-fenced urban ecosanctuary. Mainland sanctuaries are now being developed across New Zealand – but there is some serious … Continue reading Doing the sums – what are the best predator control options?

A close up of a hoiho

Phil Seddon – profiling predators in revealing detail

Professor Phil Seddon is Director of Otago University’s Postgraduate Wildlife Management Programme and has been involved in species restoration programmes around the world. He currently acts as an advisor on projects as diverse as saving critically endangered Bali starlings in Indonesia (the wild population dropped to a low of 15 in 1990), wild camels in … Continue reading Phil Seddon – profiling predators in revealing detail

Possum. Image credit Nga Manu.

Detecting predators – can you count on chew-track-cards and WaxTags?

Fundamental to a well-managed pest control programme is detecting what predators you have and monitoring the changes in abundance as your trapping regime progresses. Leg hold traps are a traditional way to achieve this, but may not be sensitive to possum presence when possum levels are at very low abundance. Recently published research puts two … Continue reading Detecting predators – can you count on chew-track-cards and WaxTags?

A volunteer opening the DOC trap up.

Learn how to get the most out of your DOC trapping series (webinar)

Darren Peters from the Department of Conservation discusses the DOC series of traps (150, 200 and 250). You can expect to learn: RELATED Possum facts and control tips River tested as reinvasion obstacle to possums Kea survival during aerial 1080 – identifying the risks The vision for a predator free 2050 How to choose the … Continue reading Learn how to get the most out of your DOC trapping series (webinar)

Three people and award

Local marae community inspires environmental change

Good things – even great things – can come from inauspicious-seeming beginnings. In 2010 a proposed new wastewater system got people worried in the small, remote East Coast settlement of Mahia, located on the Mahia Peninsula, between Napier and Gisborne. The effect of other land usage on water quality was also causing concern. The Whangawehi … Continue reading Local marae community inspires environmental change

Mohua facts

The mohua, or yellowhead, is a small bird with a bright yellow head and breast. Early settlers called it the ‘bush canary’ because of its colour and beautiful song. The mohua’s story is a familiar one, of population decline since the 1800s. In the 1800s, the mohua was one of the most common birds in … Continue reading Mohua facts

Bird watchers in the forest

Monitoring matters

Environmental monitoring is more than just a modern conservation buzzword. It’s an essential tool in determining whether all those volunteer hours put in by your community group is achieving positive, measurable change. Positive change is not just dead rats, dead possums and a truckload of weeds removed. Was the removal of those predators and pest … Continue reading Monitoring matters

A hut on on a grassy island

Antipodes and the impact of mice

For thousands of New Zealand’s sub-Antarctic mice, the next few weeks are the final countdown. With just a few weeks to go until mouse eradication begins on the sub-Antarctic Antipodes, this week’s Friday read looks at some of the key Antipodes-based research which has led us to this point – to the ‘Million Dollar Mouse’ … Continue reading Antipodes and the impact of mice

A photo of braided river bed

BRaid comes to aid of ancient rivers and rare birdlife

The South Island’s stunning braided river systems have been formed over millions of years as clashing tectonic plates created mountains and glaciers and then high rainfall and melting snows washed away at the mountain rock, sweeping gravel down into the valleys and coastal plains. In between rainstorms and spring snow melts, the river flow reduced … Continue reading BRaid comes to aid of ancient rivers and rare birdlife

A group of little penguins

Making a Place for Penguins in the City

For a little penguin (until recently known as little blue penguin) in the city, the urban adventure includes a few extra hazards not encountered by their country-coastline relatives – including large steel-bodied predators super-fuelled by petroleum. If penguins have imaginations, then cars and trucks must seem like living nightmare monsters. But crossing a busy road … Continue reading Making a Place for Penguins in the City

Man in a canoe with a dog, kayak in backgroun

Wetlands and islands

This week’s Friday afternoon reads looks at predator research relating to two key habitats in New Zealand – wetlands and off-shore islands. Colin O’Donnell (Department of Conservation, Christchurch), Kay Capperton (Havelock North) and Joanne Monks (DOC, Dunedin), review research and statistics on the impacts of introduced mammalian predators on the viability of wetland birds, particularly … Continue reading Wetlands and islands

Tackling stoats

Stoats are a cunning opponent and serious villain in New Zealand’s battle to save our native species. They’re efficient predators, can travel long distance and are good swimmers. They’re also notoriously bait-shy. So what can recent NZ research tell us about the best ways to tackle stoats? First, an overview of public perceptions and what … Continue reading Tackling stoats

Image credit: Otago Peninsula Biodiversity Group

Art exhibition is latest initiative for Otago Peninsula group

An art exhibition is an unusual way to tackle introduced pests, but ‘Citizen Sci-Art’, on show at the Portobello Hall for the weekend 27-28 February, is the latest in many initiatives by the Otago Peninsula Biodiversity Group (OPBG) and their supporters to get out and about and talking to their local community. Subtitled ‘from Stewart … Continue reading Art exhibition is latest initiative for Otago Peninsula group

The Hawkins family on the farm

Survey competition winners carry on Grandpa’s conservation work

Lamb prices are poor this season, there have been droughts in recent summers and another drought is forecast, but Otorohanga farming couple Jarrod and Danielle Hawkins were saying just before Christmas that if it did rain this summer then maybe they could buy some more kill traps for their QEII covenant block. They’re strongly committed … Continue reading Survey competition winners carry on Grandpa’s conservation work