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

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

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

Possum walking along the ground

Possums and more possums – is a fur trade the answer?

Possums – those cute Aussie furballs are decimating New Zealand forests – so why don’t we just develop our fur industry and make money from the problem? After all, that’s why they were introduced to New Zealand in the first place. More rural employment, less possums – the bush grows back and New Zealand’s rural … Continue reading Possums and more possums – is a fur trade the answer?

Trojan Possums – are they the next step?

It’s called the Trojan Female Technique and it’s involves a mutation in females that makes all their male offspring infertile. Because it is a gene, not a virus, it stays within that particular species and is spread from one generation to the next by breeding, not by disease. It has the potential to wipe out … Continue reading Trojan Possums – are they the next step?

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 brushtail possum on a branch

New ways to combat possums

Rest assured, New Zealand’s scientific community are beavering away to find new and better ways to combat possums. These are just a few of the research reports investigating possum control recently published in the New Zealand Journal of Ecology. Firstly a poison bait evaluation was carried out in a joint project by researchers from Connovation … Continue reading New ways to combat possums

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

Braided rivers and predator monitoring

Braided river systems are rare throughout the world, but we have some superb examples in New Zealand, particularly in the Canterbury and Southland regions. New Zealand’s braided riverbeds are breeding grounds for some very special wildlife including the wrybill – the only bird in the world with a bent beak – and the very rare … Continue reading Braided rivers and predator monitoring