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On the verge of a biological crisis: the state of invasive species in the Pacific

Island and Ocean Ecosystems, BRB

Available Online

Cas Vanderwoude

A report prepared by the Invasive Partnership for the Pacific Islands Forum Leaders Meeting, Palau July 2014 as requested by the Micronesian Chief Executives in Resolution 19-01

Tuvalu national biodiversity strategy and action plan: fifth national report to the convention on biological diversity.

Available Online

Alefaio, S

Falega, E

Penivao, F

Saitala, M

Teakau, F

Tekenene, M

Thaman, R

The isolated, small, low-lying resource-poor atolls of Tuvalu are clearly on the frontline against climate change, the escalating impacts natural disasters and declining food, health and energy security.

Guam invasive species management plan interim 2017-2019: interim

Available Online

The 2017-2019 Interim Guam Invasive Species Management Plan (GISMP) expresses the overarching goals and priorities of the Guam Invasive Species Council (GISC or Council). The Guam Invasive Species Act of 2011 (Public Law 31-43) established the Council as Guams lead entity in coordinating with local, regional, national, and international jurisdic¬tions in the fight against alien invasive species. Although the GISC is in its infancy stages of organization, it draws from the collective knowledge, past research, and progress of its members in establishing the Councils goals and priorities. Priorities and goals identified in this plan reflect current and near-term resources, member capabilities, and status of certain invasive species. Recommendations contained in the Regional Biosecurity Plan for Micronesia and Hawaii (RBP), the 2016-2018 National Inva¬sive Species Councils Management Plan, the Regional Invasive Species Council (RISC), and various stakeholders were considered in the development of this plan. The Council also considered developments under the purview of the Hawaii Invasive Species Council and its 2015-2020 HISC Strategic Plan.

Wetlands of Wallis and Futuna.

Island and Ocean Ecosystems, BRB

Available Online

Secretariat of the Pacific Regional Environment Programme.

In 2014, with support from the French Government, Wallis and Futuna informed SPREP of its intention to identify nationally significant wetlands for future designation as wetlands of international importance (Ramsar Sites) under the Convention on Wetlands (Ramsar, Iran, 1971).

Archipelago-wide island restoration in the Galapagos Islands: Reducing costs of invaisve mammal eradication programs and reinvasion risk

Available Online

Campbell, Karl J.

Carrion, Victor

Cruz, Felipe

Donian, C. Josh

Lavoie, Christian

Invasive alien mammals are the major driver of biodiversity loss and ecosystem degradation on islands. Over the past three decades, invasive mammal eradication from islands has become one of society's most powerful tools for preventing extinction of insular endemics and restoring insular ecosystems. As practitioners tackle larger islands for restoration, three factors will heavily influence success and outcomes: the degree of local support, the ability to mitigate for non-target impacts, and the ability to eradicate non-native species more cost-effectively. Investments in removing invasive species, however, must be weighed against the risk of reintroduction. One way to reduce reintroduction risks is to eradicate the target invasive species from an entire archipelago, and thus eliminate readily available sources. We illustrate the costs and benefits of this approach with the efforts to remove invasive goats from the Galápagos Islands. Project Isabela, the world's largest island restoration effort to date, removed > 140,000 goats from > 500,000 ha for a cost of US$10.5 million. Leveraging the capacity built during Project Isabela, and given that goat reintroductions have been common over the past decade, we implemented an archipelago-wide goat eradication strategy. Feral goats remain on three islands in the archipelago, and removal efforts are underway. Efforts on the Galápagos Islands demonstrate that for some species, island size is no longer the limiting factor with respect to eradication. Rather, bureaucratic processes, financing, political will, and stakeholder approval appear to be the new challenges. Eradication efforts have delivered a suite of biodiversity benefits that are in the process of revealing themselves. The costs of rectifying intentional reintroductions are high in terms of financial and human resources. Reducing the archipelago-wide goat density to low levels is a technical approach to reducing reintroduction risk in the short-term, and is being complemented with a longer-term social approach focused on education and governance.

Feral hog disturbance alters carbon dynamics in Southeastern US salt marshes

Island and Ocean Ecosystems, BRB

Available Online

Angelini, Christine

Persico, Emily P.

Sharp, Sean J

Disturbances that remove primary producers and alter substrate chemistry commonly influence ecosystem carbon dynamics. Because coastal wetlands are especially effective in sequestering carbon, quantifying how disturbances may alter their ability to perform this climate-regulating function is important for assessing their carbon storage potential. Here, we quantified soil respiration, litter decomposition, and soil organic carbon (SOC), as a proxy for carbon storage, in areas disturbed by invasive feral hogs Sus scrofa and in adjacent, undisturbed areas within 3 southeastern US salt marshes. Contrary to our hypothesis that hog overturning of soils would stimulate soil respiration, this metric was lower and both surface and subsurface litter decomposition rates were similar in disturbed relative to undisturbed areas across all sites. SOC was lower in disturbed versus undisturbed areas at 2 sites as hypothesized, but higher at 1 site. Surveys and analyses reveal that lower and less variable infauna, plant, and benthic algae densities likely suppressed soil respiration in hog-disturbed versus undisturbed areas, while the offsetting effects of lower invertebrate densities and higher soil temperature likely caused decomposition to be consistent within and outside of disturbed areas. . These findings suggest that hog removal of plants and disruption of soils can cause tracts of marsh to transition from carbon sinks to sources where these disturbances are intense enough to prohibit rapid plant recovery and promote the gradual respiration of carbon stocks from denuded soils.

Pig Trap - Model CEN NC - Rope snare, light, simple, inexpensive - effective everywhere day and night

Available Online

Conservatoire d'espaces Naturels (CEN)

Setting up pig traps.

Pig Trap - Model CEN NC - Cage Trap : effective multi capture, durable, easy to assemble, effective day and night

Available Online

Conservatoire d'espaces Naturels (CEN)

Setting up pig traps.

Pig Trap - Model CEN NC - Rope snare (Brochure) / Piége á cochons - Modéle CEN - Collet-corde

Island and Ocean Ecosystems, BRB

Conservatoire d'espaces Naturels (CEN)

Brochure (French & English) on setting up pig traps.

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