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Flooding imposes significant costs on households and businesses located in the lower Vaisigano catchment area. SOPAC, under the European Development Fund (EDF) project Reducing Vulnerability of Pacific ACP States, has worked with the Government of Samoa to develop the Samoa Flood Management and Action Plan, which identifies actions for government agencies, the private sector, NGOs and communities responsible for flood and floodplain management that can assist in reducing flood risks in Samoa, particularly in the lower Vaisigano catchment area located in Apia, which is subject to frequent flooding.

Prior to this survey, the island nation of Samoa had not been systematically surveyed for freshwater biodiversity despite the clear role of freshwater and the associated biodiversity in providing essential ecosystem services. This report is beginning to address this gap in knowledge in Samoa by presenting the preliminary results from the first of an anticipated series of freshwater surveys and in-field trainings for Samoa with the target organisms being fishes and macro-crustaceans. A two week initial survey and training in the last fortnight of july (2008) was conducted as a collaborative effort led by Wetlands International-Oceania and the Paris National Museum of Natural History and supported by a range of agencies. Materials developed prior to the training and surveys include catchment maps with inferred catchment integrity, a pictorial training and awareness “flashcard” book for common fresh and estuarine fished, identification keys for crustaceans and fishes, two lectures and a CD of compiled material relevant to the identification of taxa and management of freshwater system.

The Climate Change Wildlife Action Plan Guidance Document provides voluntary guidance for state fish and wildlife agencies wanting to better incorporate the impacts of climate change on wildlife and their habitats into Wildlife Action Plans. The approaches and techniques described in this document also will be useful in modifying other wildlife plans (e.g. big game/upland game/migratory bird plans, joint venture implementation plans, national fish habitat action plan, etc.) to address climate change. The document provides an overview of the information currently available on climate change, tools that can be used to plan for and implement climate change adaptation, voluntary guidance and case studies. Climate change is a large and growing threat to all wildlife and natural systems and will also exacerbate many existing threats. Efforts to address climate change should not diminish the immediate need to deal with threats that may be independent of climate change such as habitat loss/fragmentation from development, introduction of invasive species, water pollution and wildlife diseases. Since climate change is a complex and often politically-charged issue, it’s understood that the decision to revise Wildlife Action Plans or other plans to address climate change, rests solely with each state fish and wildlife agency.

Observational records and climate projections provide abundant evidence that freshwater resources are vulnerable and have the potential to be strongly impacted by climate change, with wide-ranging consequences for human societies and ecosystems. Observed warming over several decades has been linked to changes in the large-scale hydrological cycle such as: increasing atmospheric water vapour content; changing precipitation patterns, intensity and extremes; reduced snow cover and widespread melting of ice; and changes in soil moisture and runoff. Precipitation changes show substantial spatial and inter-decadal variability. Over the 20th century, precipitation has mostly increased over land in high northern latitudes, while decreases have dominated from 10°S to 30°N since the 1970s. The frequency of heavy precipitation events (or proportion of total rainfall from heavy falls) has increased over most areas (likely). Globally, the area of land classified as very dry has more than doubled since the 1970s (likely). There have been significant decreases in water storage in mountain glaciers and Northern Hemisphere snow cover. Shifts in the amplitude and timing of runoff in glacier- and snowmelt-fed rivers, and in ice-related phenomena in rivers and lakes, have been observed (high confidence).

Climate change will have significant impacts in both Australia and across the globe. Australia is one of the most arid continents in the world. It is vulnerable to risks such as disruptions to water supply; increases in the severity of storms, floods and droughts, coastal erosion due to sea level rise; and to negative human health impacts, for example through an increase in the range and spread of disease.1 The impacts of climate change are also a particular concern in the Asia Pacific region. According to the fifth report from the Working Group on Climate Change and Development, Up in Smoke? Asia and the Pacific, which was released in November 2007, 'the human drama of climate change will largely be played out in Asia, where over 60 per cent of the world's population, around 4 billion people, live'.

In this report we present the results of a study carried out between May 2004 and May 2005 as a contribution to the Tropical Rivers Inventory and Assessment Project (TRIAP) of Australia's Tropical Rivers Program. The aim was to provide a framework for the analysis of the ecosystem services provided by the wetland and riverine ecosystems of northern Australia. The analyses drew heavily on the conceptual framework provided by the Millennium Ecosystem Assessment (MA) where ecosystem services were defined as 'the benefits people obtain from ecosystems'. These benefits include: provisioning services such as food and water; regulating services such as flood and disease control; cultural services such as spiritual, recreational, and cultural benefits; and supporting services such as nutrient cycling that maintain the conditions for life on earth. The term 'ecosystem services' is now broadly used to encompass what can also be referred to as ecosystem goods and services and/or ecosystem functions and, at times, also environmental services. For the purposes of this report - given that the study was undertaken using the recognised 'function analysis framework' - the terms ecosystem services and functions are considered to be interchangeable unless a distinction is made otherwise.

The main purpose of this paper is to help policy makers, particularly those in developing countries, think about the national policy instruments needed to contribute to the fight against climate change, how such needs can be articulated in order to seek internal and external financial resources and how these needs may be reflected in negotiations of a future climate change agreement. This paper is an input to a series of workshops which the United Nations Development Program (UNDP) will organize in developing countries with the aim of improv- ing their capacity to respond to climate change.

Mangrove ecosystems are threatened by climate change. We review the state of knowledge of mangrove vulnerability and responses to predicted climate change and consider adaptation options. Based on available evidence, of all the climate change outcomes, relative sea-level rise may be the greatest threat to mangroves. Most mangrove sediment surface elevations are not keeping pace with sea-level rise, although longer term studies from a larger number of regions are needed. Rising sea-level will have the greatest impact on mangroves experiencing net lowering in sediment elevation, where there is limited area for landward migration. The Pacific Islands mangroves have been demonstrated to be at high risk of substantial reductions. There is less certainty over other climate change outcomes and mangrove responses. More research is needed on assessment methods and standard indicators of change in response to effects from climate change, while regional monitoring networks are needed to observe these responses to enable educated adaptation. Adaptation measures can offset anticipated mangrove losses and improve resistance and resilience to climate change. Coastal planning can adapt to facilitate mangrove migration with sea-level rise. Management of activities within the catchment that affect long-term trends in the mangrove sediment elevation, better management of other stressors on mangroves, rehabilitation of degraded mangrove areas, and increases in systems of strategically designed protected area networks that include mangroves and functionally linked ecosystems through representation, replication and refugia, are additional adaptation options.

As our understanding of the scale of environmental challenges deepens, so we are also forced to contemplate the inadequacy of the current responses to these challenges. By and large, these responses retreat from engaging the values that underpin our decisions as citizens, voters and consumers: mainstream approaches to tackling environmental threats do not question the dominance of today's individualistic and materialistic values.