A predator-free New Zealand is going to require landscape scale removal of possums, rats, ferrets, stoats and weasels – and possibly other species such as mice and feral cats as well. The problem – or at least one of the problems – is how do you humanely remove some species without endangering … [Read more...] about Genome-mining to find toxins that are species-selective
In geologically ancient times, Banks Peninsula was a group of volcanic islands and even now is only connected to the mainland by a narrow strip of land. That makes the Peninsula of particular interest as a possible trial site for non-fenced mainland predator eradication. So could it be done? … [Read more...] about Achieving a predator free Banks Peninsula – costs revealed
Last year, when the NZ Government announced its Predator-Free 2050 goal, it also included some interim goals to be achieved by 2025 – now just eight years away. One of those goals is that: ‘by 2025 we will have eradicated all mammalian predators from New Zealand’s island nature reserves’. It … [Read more...] about PF 2025 interim goals – what will it take?
We’ve got a pretty good idea of the damage being done to our native wildlife by introduced predators, but when it comes to introduced diseases, there has been little research done on the impact those diseases might be having. Take, for example, the parasitic disease avian malaria. Like human … [Read more...] about Avian malaria – is it a threat?
When scientists Patrick Garvey (University of Auckland), Alistair Glen and Roger Pech (Landcare Research, Lincoln) tested the response of 18 wild-caught stoats to the scents of bigger, dominant predators, the response of the stoats was the opposite of what they expected. The researchers used towels … [Read more...] about Predator scent may be key to developing long-life lures
As our only native land mammal, bats are both vulnerable to introduced mammal predators and potentially vulnerable to the methods used to control those predators. It is critically important therefore, that any ‘collateral’ harm done by the control method is significantly less than the damage that … [Read more...] about Long-term study reveals bat response to predator control
Rats are a uniquely serious problem on islands such as New Zealand where there has been a rodent-free evolution of our wildlife and plantlife, but scientists around the world are also looking for better ways to control rats because of their disease-carrying and food-spoilage attributes. Black … [Read more...] about Canadian researchers come up with innovative rat-luring techniques
Lack of forest habitat or introduced predators – which is the biggest barrier to native biodiversity in New Zealand’s lowland landscapes? Can they even be considered separately? Is there any point in restoring habitat if you don’t get rid of predators and conversely, are there any benefits from … [Read more...] about Conserving biodiversity – what should be prioritised?
Rats are the introduced predator that homeowners are most likely to combat, according to the results just out from the 2016 ‘Public Perceptions of New Zealand’s Environment’ survey, with almost all respondents who had rats present, reporting that they attempted to control the rats near their home. … [Read more...] about Survey reveals public predator control efforts
When planning began for Maungatautari Ecological Island Sanctuary, no-one knew that a population of New Zealand’s endemic Hochstetter’s Frog lived within the sanctuary’s planned fenceline. For once, one of our threatened species was in the right placed at the right time and it's discovery was an … [Read more...] about Serendipity helps Hochstetter’s Frogs