The effects of Pleistocene glaciations on the genetic characteristics of the most austral conifer in the world, Pilgerodendron uviferum, were analysed with specific reference to the hypothesis that the species persisted locally in ice-free areas in temperate South America.
Results indicated that Pilgerodendron populations are highly monomorphic, probably reflecting past population bottlenecks and reduced gene flow. Southernmost populations tend to be the least genetically variable and were therefore probably more affected by glacial activity than northern ones. Populations located outside ice limits seem to have been isolated during the glacial period. The presence of centres of genetic diversity, together with the lack of a significant correlation between genetic and geographical distances and the absence of geographical patterns of allelic frequencies at most analysed alleles, may indicate that Pilgerodendron did not advance southward after the last glaciation from a unique northern refugium, but spread from several surviving populations in ice-free areas in Patagonia instead.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
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
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
This report reviews the current state of knowledge on the biodiversity impacts (both positive and negative) of biofuel production, with an emphasis on the potential influence of current and future government policies. Although the focus is primarily on first generation biofuels, second and third generation biofuels are also discussed. The potential for sustainability criteria to ameliorate biodiversity impacts is also assessed.Resource Type: Reports
This briefing provides an update on negotiations under the climate change convention on REDD (Reducing Emissions from Deforestation and forest Degradation), and their relevance to forest restoration. It has been prepared as part of the REFORLAN project, European Community Sixth Framework Programme contract number 032132. REFORLAN has carried out research on dry forest restoration in Mexico, Chile and Argentina. Hence this briefing has a particular focus on these countries.Resource Type: Reports
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