Rat eradication is a highly effective tool for conserving biodiversity, but one that requires considerable planning effort, a high level of precision during implementation and carries no guarantee of success. Overall, rates of success are generally high but lower for tropical islands where most...

Haida Gwaii is a remote island archipelago located off the north Pacific coast, approximately 100 km from mainland British Columbia, Canada. The southern part of the archipelago, Gwaii Haanas, is designated a National Park Reserve, National Marine Conservation Area Reserve, and Haida Heritage Site, ...

Island restoration is expanding as a tool for enhancing conservation outcomes. The ability of conservation managers to eradicate multiple invasive species over increasingly complex or large areas is steadily improving, but progress inevitably presents new challenges. There is always a larger, even...

We are on the edge of the sixth mass extinction on Earth. Islands represent ca. 5% of the earth's land area yet are home to 61% of extinctions in the past 500 years, and currently support 39% of critically endangered species. Invasive species are a leading cause of extinction and endangerment on...

Sand Island, Midway Atoll National Wildlife Refuge (MANWR), is home to 21% of all nesting black-footed albatross (Phoebastria nigripes) and 47% of all nesting Laysan albatross (P. immutabilis) worldwide. During the 2015- 2016 nesting season predation and disturbance by non-native house mice (Mus...

Invasive alien species represent one of the greatest threats to island ecosystems and the unique species that inhabit them. In many instances, eradication or control programs for invasive alien species have effectively curtailed the ongoing loss of biodiversity on islands. Prevention is a more...

The number and scale of island invasive species eradications is growing, but quantitative evidence of the conservation efficacy of passive recovery is limited. We compare relative abundances of breeding birds on Hawadax Island (formerly named Rat island), Aleutian Archipelago, Alaska, pre- and...

Measuring the response of native species to conservation actions is necessary to inform continued improvement of conservation practices. This is particularly true for eradications of invasive vertebrates from islands where up-front costs are high, actions may be controversial, and there is...

Removing invasive rats from islands is a powerful conservation tool, and practitioners are now targeting larger islands for rat eradication. As they do so, they face the challenge of mitigating for potential non-target impacts on native biodiversity that may be susceptible to rodenticides. We...