Translocation is an important tool for conservation management – but it comes with risks. The capture and transfer process can be highly stressful to wildlife. Some individuals can and have died. Finding ways to reduce translocation stress can save lives. And the lives that are saved are often … [Read more...] about Less stress = translocation success for tiny rifleman
Techniques/technologies
Know your bird calls – human brain vs hard-drive
It was human vs hard-drive in Rawhiti, Northland when researchers pitted volunteer bird enthusiasts of various ages and experience against Autonomous Recording Units (ARUs). Senses were pitted against sensors to see who (or what) was best at detecting and identifying calls. Both humans and machines … [Read more...] about Know your bird calls – human brain vs hard-drive
When economics meets ecology – assessing the ‘ecosystem services’ of farmland
Wetland areas and covenanted bush blocks on farms have a clear ecological value, but do they have an economic value as well? The answer is yes. But that leads to another question. How can you assess the economic value of an area of wetland or remnant forest that isn’t producing saleable crops or … [Read more...] about When economics meets ecology – assessing the ‘ecosystem services’ of farmland
Blue Mountains study shows 1080 effective – even for hedgehogs, mice
In the past there’s been some uncertainty over the effectiveness of large-scale aerial 1080 operations to control mice and little is known about its effect on hedgehogs. Recent trail camera monitoring of mammal predators before and after a control operation in the Blue Mountains, West Otago, … [Read more...] about Blue Mountains study shows 1080 effective – even for hedgehogs, mice
Catching feral cats on camera
Feral cats are nocturnal, elusive creatures and can cover a lot of ground. They can range up to 6 kilometres, making monitoring difficult. So how do you go about detecting them? Camera trap monitoring reveals a feral cat... Camera traps are a useful, non-invasive way to determine whether … [Read more...] about Catching feral cats on camera
Dual 1080 bait switch solves bait-shy possum issues
When researchers tested a dual baiting regime on ship rats back in 2016-2017, they also made some interesting observations about possum behaviour in their study area. Could dual baiting be adapted to overcome the bait-shy behaviour of possum survivors too? Possums that survive an aerial 1080 … [Read more...] about Dual 1080 bait switch solves bait-shy possum issues
Rats on the move – how far do they disperse?
How far might young rats disperse if they find themselves in a place with few other rat competitors? It’s an important question, with implications for deciding what surveillance is needed to detect invasions in predator-free islands, sanctuaries and ultimately, large predator-free mainland … [Read more...] about Rats on the move – how far do they disperse?
AviaNZ open-source software helps analyse bird calls
Birds are hard to see and sometimes shy of humans, so call counts are the way that population sizes are usually estimated. Automatic acoustic recorders have made recording bird calls easier – but recorders generate a lot of data – a LOT of data! It can end up being just too time-consuming to analyse … [Read more...] about AviaNZ open-source software helps analyse bird calls
Drone technology offers low impact method for seabird census
The Ashburton/Hakatere River mouth in Mid Canterbury is a nesting site for large colonies of black-billed gulls and white-fronted terns and proved an ideal study site for testing the bird census capabilities of an Unmanned Aerial Vehicle (UAV) compared to more traditional bird count methods. When … [Read more...] about Drone technology offers low impact method for seabird census
Detecting rodents during a food glut
How do you detect the presence of rats and mice if they’re surrounded by a glut of natural food? If it’s a mast year and there’s a carpet of seeds on the forest floor, they just may not be interested in your peanut butter-flavoured chew cards. If there are only a few remaining rats or mice in a … [Read more...] about Detecting rodents during a food glut