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Multi island, multi invasive species eradication in French Polynesia demonstrates economies of scale

Available Online

Coulston, G.

Cranwell, S.

Derand, D.

Ghestemme, T.

Griffiths, R.

Hall, T.

Pott, M.

Will, D.

Zito, J.

Eradication of invasive vertebrates on islands has proven to be one of the most effective returns on investment for biodiversity conservation. To recover populations of the critically endangered Polynesian ground dove (Gallicolumba erythroptera), the endangered white-throated storm-petrel (Nesofregetta fuliginosa), the endangered Tuamotu sandpiper (Prosobonia cancellata) as well as other native plant and animal species, a project was undertaken to eradicate five species of invasive alien vertebrates: Pacific rat (Rattus exulans), ship rat (R. rattus), feral cat (Felis catus), rabbit (Oryctolagus cuniculus) and goat (Capra hircus), on six islands spanning 320 km of open ocean in the Tuamotu and Gambier Archipelagos of French Polynesia. Using a ship to deliver supplies and equipment, a helicopter for offloading and bait application, and ground teams for follow up trapping and hunting, invasive vertebrates were successfully removed from five of the six islands. Pacific rats survived at one site. The project was planned and executed by a partnership consisting of international and local conservation NGOs, working together with local communities. Combining the different eradication operations into one expedition added complexity to project planning and implementation and increased the risk of the operation failing on any one island but generated greater returns on investment allowing six islands to be targeted at significantly less cost than if each island had been completed individually. An extensive and thorough planning effort, effective relationships with local stakeholders and communities, a good operational strategy and a partnership of stakeholders that each brought complementary capacities to the project contributed to its success.

Trialling gene drives to control invasive species: what, where and how?

Available Online

Alphey, L.

Campbell, K.

Edgington, M.

Harvey-Samuel, T.

The control of invasive species would be enhanced through the addition of novel, more effective and sustainable pest management methods. One control option yet to be trialled in the field is to deploy transgene-based Gene Drives: technologies which force the inheritance of a genetic construct through the gene pool of a wild population, suppressing it or replacing it with a less harmful form. There is considerable interest in applying gene drives to currently intractable invasives across a broad taxonomic range. However, not all species will make efficient or safe targets for these technologies. Additionally, the safety and efficacy of these systems will vary according to where they are deployed, the specific molecular design chosen, and how these factors interact with the ecology of the target pest. Given the transformative but also controversial nature of gene drives, it is imperative that their first field trials are able to successfully demonstrate that they can be used safely and efficiently. Here, we discuss how to maximise the probability of this outcome through considering three important questions: What types of invasive species should we use to trial gene drives? Where should we be trialling them? and How should these trials be conducted? In particular, we focus on the ecological, genetic and geographic features of small, isolated islands which make them ideal locations for these initial trials. A case study of an island invasive that is deemed highly appropriate for gene drive intervention, and for which gene drive development is currently underway (Mus musculus), is used to further explore these concepts

Soundbites 2018

Available Online

Secretariat of the Pacific Regional Environment Programme

It is with great pleasure that I send out the Soundbites for the year of 2018. For most of us this time of the year is a mix of trying to get everything completed at work on time and planning what we are doing with our families over the up-coming festive season.

The Pacific Invasive learning network : PILN

Island and Ocean Ecosystems, BRB

Pacific invasive learning network : final report

Available Online

Key, Jill

The Pacific Invasives Initiative (PII) is a sister partnership based at Auckland University which shares 6 partners with PILN. The goal of the PII is to contribute to conserving island biodiversity and enhancing the sustainability of island livelihoods by minimizing the spread and impacts of invasive species in the Pacific region. This is achieved by increasing support and developing capacity in the region for managing the impacts of these species. It works with Pacific agencies/organisations to increase their support for invasive species management and develop their capacity to take effective action against their priority invasive species problems. These outcomes are achieved through facilitation of Demonstration Projects, provision of technical support and advice, provision of training and facilitation of skills exchanges.

Pacific Invasive Learning Network Pilot programme, May 2006-May 2008

Available Online

Key, Jill

Work is based around country visits by the network coordinator to support PILN teams to identify and take strategic action to manage their priority invasive species. The network is functioning by sharing awareness of successful activities being earned out by the teams, providing the mechanism for other teams to do the same, and actively encouraging them to do so. Capacity building is linked to on-going invasive species projects and achieved through workshops and exchanges.

Pacific invasive learning network 2007 Annual meeting, Moorea, French Polynesia 3-7 September 2007: meeting report

Available Online

Key, Dr. Jill

The Pacific Invasives Learning Network (PILN) serves teams of Pacific Island agencies responsible for invasives management, including agencies responsible for agriculture, international trade and other economic interests, as well as conservation and natural resource management. PILNs mission is to empower effective invasive species management through a participant-driven network that meets priority needs, rapidly shares skills and resources, provides links to technical expertise, increases information exchange, and accelerates on- the-ground action.

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