"Words matter." A Response to Jørgensen's Treatment of Historic Range and Definitions of Reintroduction

According to Jørgensen, the definition of reintroductions is crucial to their proper implementation and she highlights a number of ambiguities in existing definitions, particularly associated with the concept of historic range. We could not agree more and have incorporated her suggested term of "indigenous range" rather than "historic range" into the current revision of the InternationalUnion for the Conservation of Nature (IUCN) Guidelines for Reintroductions and other Conservation Translocations (in preparation by IUCN Species Survival Commission Reintroduction and Invasive Species Specialist Groups). We also agree with Jørgensen's interpretation that reintroductions are not always necessitated by humans causing the extirpation of species. However, we disagree with other aspects of Jørgensen's argument such as the critique of Seddon, the interpretation of previous IUCN guidance documents, and the recommendation that the conservation community "rethink the basic definition of reintroduction" rather than moving toward other translocation-based interventions. With regard to the latter point, we emphasize that reintroductions are part of a spectrum of translocations and to focus on reintroductions alone would overlook the fact that introductions beyond a species' indigenous range are being attempted. The new revision of the IUCN guidelines incorporates the whole conservation translocation spectrum and aims to avoid the ambiguities of previous definitions highlighted by Jørgensen. © 2013 Society for Ecological Restoration

Forests as Resources for the Poor : The Rainforest Challenge.

At AGM01, the CGIAR decided to immediately initiate the regular Challenge Program(CP) process by calling for ideas. Of the 41 CP ideas received, 13 were recommended bythe interim Science Council (iSC) and endorsed by the CGIAR for pre-proposaldevelopment. The attached pre-proposal, Forests as Resources for the Poor: The Rainforest Challenge, is one of four proposals that the iSC considered meritorious and would further consider for review after meeting certain requirements. This preproposal was discussed at the stakeholder meeting at AGM02 : Agenda item 3, session III.Document date and author are unspecified

Measuring Global Trends in the Status of Biodiversity: Red List Indices for Birds

The rapid destruction of the planet's biodiversity has prompted the nations of the world to set a target of achieving a significant reduction in the rate of loss of biodiversity by 2010. However, we do not yet have an adequate way of monitoring progress towards achieving this target. Here we present a method for producing indices based on the IUCN Red List to chart the overall threat status (projected relative extinction risk) of all the world's bird species from 1988 to 2004. Red List Indices (RLIs) are based on the number of species in each Red List category, and on the number changing categories between assessments as a result of genuine improvement or deterioration in status. The RLI for all bird species shows that their overall threat status has continued to deteriorate since 1988. Disaggregated indices show that deteriorations have occurred worldwide and in all major ecosystems, but with particularly steep declines in the indices for Indo-Malayan birds (driven by intensifying deforestation of the Sundaic lowlands) and for albatrosses and petrels (driven by incidental mortality in commercial longline fisheries). RLIs complement indicators based on species population trends and habitat extent for quantifying global trends in the status of biodiversity. Their main weaknesses are that the resolution of status changes is fairly coarse and that delays may occur before some status changes are detected. Their greatest strength is that they are based on information from nearly all species in a taxonomic group worldwide, rather than a potentially biased subset. At present, suitable data are only available for birds, but indices for other taxonomic groups are in development, as is a sampled index based on a stratified sample from all major taxonomic groups

Mapping opportunities and challenges for rewilding in Europe

Farmland abandonment takes place across the world due to socio-economic and ecological drivers. In Europe agricultural and environmental policies aim to prevent abandonment and halt ecological succession. Ecological rewilding has been recently proposed as an alternative strategy. We developed a framework to assess opportunities for rewilding across different dimensions of wilderness in Europe. We mapped artificial light, human accessibility based on transport infrastructure, proportion of harvested primary productivity (i.e., ecosystem productivity appropriated by humans through agriculture or forestry), and deviation from potential natural vegetation in areas projected to be abandoned by 2040. At the continental level, the levels of artificial light were low and the deviation from potential natural vegetation was high in areas of abandonment. The relative importance of wilderness metrics differed regionally and was strongly connected to local environmental and socio-economic contexts. Large areas of projected abandonment were often located in or around Natura 2000 sites. Based on these results, we argue that management should be tailored to restore the aspects of wilderness that are lacking in each region. There are many remaining challenges regarding biodiversity in Europe, but megafauna species are already recovering. To further potentiate large-scale rewilding, Natura 2000 management would need to incorporate rewilding approaches. Our framework can be applied to assessing rewilding opportunities and challenges in other world regions, and our results could guide redirection of subsidies to manage social-ecological systems

Establishing IUCN Red List Criteria for Threatened Ecosystems

The potential for conservation of individual species has been greatly advanced by the International Union for Conservation of Nature\u27s (IUCN) development of objective, repeatable, and transparent criteria for assessing extinction risk that explicitly separate risk assessment from priority setting. At the IV World Conservation Congress in 2008, the process began to develop and implement comparable global standards for ecosystems. A working group established by the IUCN has begun formulating a system of quantitative categories and criteria, analogous to those used for species, for assigning levels of threat to ecosystems at local, regional, and global levels. A final system will require definitions of ecosystems; quantification of ecosystem status; identification of the stages of degradation and loss of ecosystems; proxy measures of risk (criteria); classification thresholds for these criteria; and standardized methods for performing assessments. The system will need to reflect the degree and rate of change in an ecosystem\u27s extent, composition, structure, and function, and have its conceptual roots in ecological theory and empirical research. On the basis of these requirements and the hypothesis that ecosystem risk is a function of the risk of its component species, we propose a set of four criteria: recent declines in distribution or ecological function, historical total loss in distribution or ecological function, small distribution combined with decline, or very small distribution. Most work has focused on terrestrial ecosystems, but comparable thresholds and criteria for freshwater and marine ecosystems are also needed. These are the first steps in an international consultation process that will lead to a unified proposal to be presented at the next World Conservation Congress in 2012

Rangelands Atlas

Rangelands can be described as land on which the vegetation is predominantly grasses, grass-like plants, forbs or shrubs, and often with trees that are grazed or have the potential to be grazed by livestock and wildlife. They are diverse in their vegetation driven by highly fluctuating rainfall, temperature and other climate phenomena, and habitat for a wide range of wildlife, many species of which are found nowhere else. Rangelands store vast amounts of carbon and either originate or serve as freshwater catchment areas for most of the world’s largest rivers and wetlands. Rangelands are home to millions of people, from pastoralists to hunter-gatherers to ranchers to conservationists. Rangelands feed millions of people worldwide. Rangelands have significant cultural and aesthetic value too, and for many, are places of inspiration and beauty. This Rangelands Atlas has been developed to document and raise awareness on the enormous environmental, economic and social value of rangelands as well as their different ecosystems. It highlights many of the changes taking place in rangelands due to climate change, land use and conversion trends, investments and other changes: of most concern is the predicted trends of climate change and biodiversity loss, which will have significant impacts on some rangeland ecosystems. The spatial mapping of rangelands was produced by focusing on seven of the 14 global biomes categorised by WWF in their mapping of terrestrial ecoregions around the world. These seven biomes include different types of mainly dryland grasslands, savannas, shrublands and forests, together with wetter and colder biomes such as tundra. Though this mapping does not take into account actual land use and other changes that have taken place on the ground, it is a useful starting point for identifying, documenting and raising awareness on the overall characteristics of rangelands, their contribution to livestock and other food production, ecosystem services, conservation and the broader trends of change taking place. The Atlas also highlights significant data gaps in rangelands, which have seen proportionately less investment in this regard than other land uses and ecosystems. The spatial map of rangelands is combined with other existing global datasets on different themes, to produce a mapping of that data ‘for rangelands.’ Each entry is presented with a short explanation of the map, some key figures produced from the big data that produced the map, a story from the field adding a taste of a local experience and/or perspective, and some explanation of terminologies used in the map as required. We are reliant on the accuracy of the datasets we have accessed: the data have not been verified at regional, country or local level, and therefore is only an indicator of broad and estimated figures and trends

“Top-Down-Bottom-Up” Methodology as a Common Approach to Defining Bespoke Sets of Sustainability Assessment Criteria for the Built Environment

YesThe top-down-bottom-up (TDBU) methodology for defining bespoke sets of sustainability criteria for specific civil engineering project types is introduced and discussed. The need to define sustainability criteria for specific civil engineering project types occurs mainly in one or both of the following cases: (1) when a more comprehensive and indicative assessment of the sustainability of the project type in question is required; and/or (2) there is no readily available bespoke sustainability assessment tool, or set of criteria, for assessing the sustainability of the project type. The construction of roads, buildings, airports, tunnels, dams, flood banks, bridges, water supply, and sewage systems and their supporting systems are considered to be unique civil engineering/infrastructure project types. The normative definition of sustainable civil engineering/infrastructure projects and the framework for assessing its sustainability is defined and provided by the authors. An example of the TDBU methodology being applied to define sustainability criteria for transport noise reducing devices is presented and discussed. The end result of applying the methodology is a systematically researched and industry validated set of criteria that denotes assessing the sustainability of the civil engineering/infrastructure project type. The paper concludes that the top-down-bottom-up will support stakeholders and managers involved in assessing sustainability to consider all major research methods to define general and unique sustainability criteria to assess and so maximize sustainability