Ruff breeding populations have declined widely and in all habitats across temperate Eurasia. Of an estimated population of 2.2-2.8 million birds, 98% are now confined to habitats in the Arctic tundra.
The emerging picture is that the population has shifted northwards and eastwards and has retreated from the wet grassland habitats formerly occupied along the southern edges of its range. It is suggested that the causes are probably of a global nature and may be linked with climate change. It is unclear whether the total population has declined or only shifted north and east. More co-ordinated and systematic monitoring of breeding and wintering populations will be necessary before a full understanding of these changes can be reached.Resource Type: Journal Papers
This paper provides an overview of the current state of knowledge regarding relationships between carbon and biodiversity in tropical forests.Resource Type: Reports
Coral reefs are a critical global resource, both biologically, and in socio-economic terms. Coral reefs are also highly sensitive to climatic influences and appear to number among the most sensitive of all ecosystems to temperature changes, exhibiting the phenomenon known as coral bleaching when stressed by higher than normal sea temperatures.Resource Type: Reports
National reports continue to provide the best means available to assess the status of implementation of the Convention, and a key tool to guide decisions on current and future strategic priorities. This analysis summarises data provided in section II General Overviews (omitting questions on specific Appendix I species) and sections III, V, VI, IX and X of the National Reports. A more detailed summary of this information is provided in Annex 1 to this report.Resource Type: Reports
UNEP-WCMC produces regular outputs of net trade in wild-collected fauna and flora listed on CITES Appendix II as part of the CITES Review of Significant Trade process.
UNEP-WCMC also produced Reviews of Significant Trade for the species selected for review following CoP14 for recent Animals and Plants Committee meetings (including AC25, PC19 and AC26).Resource Type: Reports
This assessment determines, in a coarse but globally consistent way, the extent and location of opportunities for restoration of forests and landscapes as well as the associated potential for carbon sequestration. The results should stimulate interest in restoration among international and national policy-makers, help set the global agenda on restoration, and serve as a point of departure for more detailed assessment at the national and regional levels.Resource Type: Reports
This first analysis of the likely impact of climate change on biodiversity demonstrates the impact on Arctic waterbirds. The Arctic will be the biome most affected by climate change and hence waterbird species, most of which are entirely reliant on Arctic habitats, are particularly vulnerable.Resource Type: Reports
Small local hunting communities in Siberia are very distant from any governmental control. Hunted waterbird species, including globally and regionally threatened species, rely for their well-being on the self regulation of remote hunting communities. Interviewed hunters showed a profound knowledge of Baikal Teal, its population status, and the causes of their past decline. Whether the knowledge is shared by other communities in the region and beyond in Northern Siberia needs verification.
The paper provides an analysis of the ecosystem-derived multiple benefits of REDD+.
The terminology around multiple benefits is not yet clear cut. Here, the different terms in use are reviewed and suggestions are made about how terms can be used in a consistent way.Resource Type: Reports
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