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  • Subject PILN-IAS
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  • Publication Year 2018
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Climate change vulnerability assessment of species
Climate Change Resilience, BRB
Available Online

Akçakaya, H. Resit

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Bickford, David

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Carr, Jamie A.

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Foden, Wendy B.

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Garcia, Raquel A.

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Hoffmann, Ary A.

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Hole, David G.

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Huntley, Brian

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Martin, Tara G.

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Pacifici, Michela

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Pearce‐Higgins, James W.

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Platts, Philip J.

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Stein, Bruce A.

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Thomas, Chris D.

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Visconti, Piero

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Watson, James E. M.

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Wheatley, Christopher J.

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Young, Bruce E.

2018
Assessing species' vulnerability to climate change is a prerequisite for developing effective strategies to conserve them. The last three decades have seen exponential growth in the number of studies evaluating how, how much, why, when, and where species will be impacted by climate change. We provide an overview of the rapidly developing field of climate change vulnerability assessment (CCVA) and describe key concepts, terms, steps and considerations. We stress the importance of identifying the full range of pressures, impacts and their associated mechanisms that species face and using this as a basis for selecting the appropriate assessment approaches for quantifying vulnerability. We outline four CCVA assessment approaches, namely trait?based, correlative, mechanistic and combined approaches and discuss their use. Since any assessment can deliver unreliable or even misleading results when incorrect data and parameters are applied, we discuss finding, selecting, and applying input data and provide examples of open?access resources. Because rare, small?range, and declining?range species are often of particular conservation concern while also posing significant challenges for CCVA, we describe alternative ways to assess them. We also describe how CCVAs can be used to inform IUCN Red List assessments of extinction risk. Finally, we suggest future directions in this field and propose areas where research efforts may be particularly valuable.
The state of agricultural dommodity markets 2018. agricultural trade, climate change and food security
Environmental Governance, Climate Change Resilience, BRB
Available Online
2018
This edition of The State of Agricultural Commodity Markets focuses on the complex and underexplored intersection between agricultural trade, climate change and food security. It is clear that we cannot tackle hunger without finding adaptation and mitigation solutions to climate change in agriculture and food systems. It is also clear that the uneven impact of climate change across regions and countries, and the corresponding changes in food availability and access will affect international trade patterns and trade routes. This report supports these discussions by providing an in-depth analysis of the Paris Agreement and the WTO agreements to enhance clarity and provide guidance on policy options that could strengthen the mutually supportive role of these accords in tackling climate change and hunger. Wide-ranging policy actions are necessary to ensure that trade will contribute to the efforts aimed at ensuring food security and promoting adaptation and mitigation to climate change. The uneven impact of climate change across the world and its implications for agricultural trade, especially for developing countries, underlines the need for a balanced approach to policies, which should enhance the adaptive role of trade, while supporting the most vulnerable.
Rodent management issues in South Pacific islands: a review with case studies from Papua New Guinea and Vanuatu
BRB
Available Online

Aplin, Ken P.

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Brown, Peter R.

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Hinds, Lyn A.

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Jacob, Jens

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Rithcie, Barbara J.

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Thomas, Sarah E.

2018
Rodents are a key pest to agricultural and rural island communities of the South Pacific, but there is limited information of their impact on the crops and livelihoods of small-scale farmers. The rodent pest community is known, but the type and scales of damage to different crops on different islands are unknown. Knowledge about rodent pest management in other geographical regions may not be directly transferable to the Pacific region. Many studies on islands have largely focussed on the eradication of rodents from uninhabited islands for conservation benefits. These broadscale eradication efforts are unlikely to translate to inhabited islands because of complex social and agricultural issues. The livelihoods, culture and customs of poor small-scale farmers in the South Pacific have a large bearing on the current management of rodents. The aim of the present review was to describe the rodent problems, impacts and management of rodents on South Pacific islands, and identify gaps for further research. We compared and contrasted two case studies. The situation in Papua New Guinea is emergent as several introduced rodent species are actively invading new areas with wide-ranging implications for human livelihoods and conservation. In Vanuatu, we show how rodent damage on cocoa plantations can be reduced by good orchard hygiene through pruning and weeding, which also has benefits for the management of black pod disease. We conclude that (1) damage levels are unknown and unreported, (2) the impacts on human health are unknown, (3) the relationships between the pest species and their food sources, breeding and movements are not known, and (4) the situation in Papua New Guinea may represent an emergent crisis that warrants further investigation. In addition, there is a need for greater understanding of the invasive history of pest rodents, so as to integrate biological information with management strategies. Ecologically based rodent management can be achieved on Pacific Islands, but only after significant well funded large-scale projects are established and rodent ecologists are trained. We can learn from experiences from other locations such as Southeast Asia to guide the way.