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  • Collection Biodiversity Conservation
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Ecological and socioeconomic impacts of invasive alien species in island ecosystems.
Biodiversity Conservation, BRB
Available Online

Jamie K Reaser ? Laura A Meyerson ? Quentin Cronk ? Maj De Poorter

Minimizing the impact of invasive alien species (IAS) on islands and elsewhere requires researchers to provide cogent information on the environmental and socioeconomic consequences of IAS to the public and policy makers. Unfortunately, this information has not been readily available owing to a paucity of scientific research and the failure of the scientific community to make their findings readily available to decision makers. This review explores the vulnerability of islands to biological invasion, reports on environmental and socioeconomic impacts of IAS on islands and provides guidance and information on technical resources that can help minimize the effects of IAS in island ecosystems. This assessment is intended to provide a holistic perspective on island-IAS dynamics, enable biologists and social scientists to identify information gaps that warrant further research and serve as a primer for policy makers seeking to minimize the impact of IAS on island systems. Case studies have been selected to reflect the most scientifically-reliable information on the impacts of IAS on islands. Sufficient evidence has emerged to conclude that IAS are the most significant drivers of population declines and species extinctions in island ecosystems worldwide. Clearly, IAS can also have significant socioeconomic impacts directly (for example human health) and indirectly through their effects on ecosystem goods and services. These impacts are manifest at all ecological levels and affect the poorest, as well as richest, island nations. The measures needed to prevent and minimize the impacts of IAS on island ecosystems are generally known. However, many island nations and territories lack the scientific and technical information, infrastructure and human and financial resources necessary to adequately address the problems caused by IAS. Because every nation is an exporter and importer of goods and services, every nation is also a facilitator and victim of the invasion of alien species. Wealthy nations therefore need to help raise the capacity of island nations and territories to minimize the spread and impact of IAS.
Will Alien Plant Invaders Be advantaged Under Future Climates?
Climate Change Resilience, Biodiversity Conservation, BRB
Available Online

Gallagher, Rachel V.

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Leishman, Michelle R.

The last two decades have seen an upsurge in research into the potential synergies between invasive species and climate change, with evidence emerging of increased invader success under climate change. All stages along the naturalization-invasion continuum are likely to be affected, from the introduction and establishment of alien species to their spread and transition to serious invaders. A key question is whether alien plants will have a relative advantage under climate change conditions. So far, evidence for differential responses of alien invasive and native species to climate change drivers (elevated CO2) and outcomes (increasing temperature, changing rainfall patterns, changes in disturbance regimes) is mixed. Although alien invasive plants appear to be more responsive to elevated CO2 than many native species, plant response to elevated CO2 and other climate change components is dependent on environmental conditions and resource availability. Similarly, correlative modelling of species-climate relationships has not revealed clear evidence that invasive plants are likely to be able to increase the extent of suitable habitat under future climates any more than their native counterparts. We suggest that the most important driver of a shift to alien-dominated vegetation under climate change will be the superior capacity of alien invasive plants to take advantage of colonisation opportunities arising from climate change, such as extreme climatic events, changes in disturbance regimes, and widespread reduction in vegetation resilience as range margin populations decline. There are substantial challenges ahead for managing invasive plants under future climates. Weed risk assessment and management approaches must incorporate consideration of future climatic conditions. Most importantly, we will need a shift in management approaches away from a focus on the control of undesirable alien plant species to building resilience of resident vegetation assemblages, in association with targeted monitoring and early eradication of alien plant species.
CALL: A newsletter for Conservation Areas in the Pacific
Biodiversity Conservation

SPREP

Pacific International Waters project video
Biodiversity Conservation, Waste Management and Pollution Control
Economics for Community based Management in the Pacific : Train Sea Coast 2
Biodiversity Conservation
Manual of methods and techniques for surveying mangrove crabs in the Sa'anapu-Sataoa Conservation Area / by Karen M. Kool
Biodiversity Conservation
Available Online

Kool, K.M.

The people in the canoes are responsible for measuring 40 m along the line of the channel between pot sites, checking that the pots have been set correctlv (i.e. flat J on the bed, and checking that the rope from the buoy to the pot is long enough to ensure tiat the buoy will float freely at high tide. For measuring the 40 m between pot sites, a canoe paddles ahead with the tape measure while the dinghy, or other canoe, acts as an anchor at the previous pot position and feeds out the tape.
Strategy and work programme for the protection of the marine environment in the South Pacific region (SPMESP)
Biodiversity Conservation

SPREP

Strategy and work programme for the protection of the marine environment in the South Pacific region (SPMESP)
Pig Trap - Model CEN NC - Rope snare (Brochure) / Piége á cochons - Modéle CEN - Collet-corde
Biodiversity Conservation, BRB

Conservatoire d'espaces Naturels (CEN)

Brochure (French & English) on setting up pig traps.
Project Proposal 2003-2004
Biodiversity Conservation

East Sepik Local Environment Foundation

,

Wewak Coastal Fisheries & Marine Resource Owner Association

Iá mai i ou aáu Amerika Samoa e manaia i lau taumafa
Biodiversity Conservation

Craig, Joshua

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Grant, Kelly

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Iose, Pamela

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Porter, Mary Jane

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