Studying the benefits of pest control for kea
DOC has monitored kea nesting success in Kahurangi National Park since 2009.
In the 2015 and 2016 kea breeding seasons, on average 50% of monitored nests produced young kea. This followed aerial 1080 predator control in 2014 and 2016.
This is a big improvement on previous years without predator control in Kahurangi. Between 2009 and 2014 only 2% of nests were successful in areas without predator control.
DOC tracked a sample of over 20 kea through 1080 predator control operations in Kahurangi National Park in 2016 and none were lost to 1080 poisoning.
Our scientists calculate that kea populations are better off after 1080 treatment than without it. If predators are not controlled after a beech mast or seeding event, high stoat levels wipe out most nests and kill adult birds too.
View larger graph (SVG, 35K)
Other monitoring results