Study

Controlling invasive predators enhances the long-term survival of endangered New Zealand long-tailed bats (Chalinolobus tuberculatus): Implications for conservation of bats on oceanic islands

  • Published source details O'Donnell C.F.J., Pryde M.A., van Dam-Bates P. & Elliott G.P. (2017) Controlling invasive predators enhances the long-term survival of endangered New Zealand long-tailed bats (Chalinolobus tuberculatus): Implications for conservation of bats on oceanic islands. Biological Conservation, 214, 156-167

Actions

This study is summarised as evidence for the following.

Action Category

Control invasive predators

Action Link
Bat Conservation
  1. Control invasive predators

    A replicated, before-and-after study in 1993–2015 in a rainforest in Eglinton Valley, New Zealand (O'Donnell et al. 2017) found that ship rat Rattus rattus control resulted in increased survival probabilities of female bats within three long-tailed bat Chalinolobus tuberculatus colonies. Average annual survival probabilities for both adult and juvenile female bats were higher in years with rat control (adult female: 0.82; juvenile female: 0.76) than without (adult female: 0.55; juvenile female: 0.55). Population trends were positive for all three bat colonies when rats were controlled, and negative for when rats were not controlled (data reported as statistical model results). Rats within the roosting ranges of all three bat colonies were poisoned using bait stations in 2006–2009 following high beech Nothofagaceae spp. seedfall and an increase in numbers. Bats were captured annually during the breeding season over 22 summers in 1993–2015 (average 6–8 captures/colony/year). Mark-recapture data were used to calculate survival probabilities.

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust