Araucaria araucana (Monkey Puzzle), a southern South American tree species of exceptional cultural and economic importance, is of conservation concern owing to extensive historical clearance and current human pressures. Random amplified polymorphic DNA (RAPD) markers were used to characterise genetic heterogeneity within and among 13 populations of this species from throughout its natural range.
Although populations are geographically divided into Chilean Coastal, Chilean Andes and Argentinean regions, this grouping explained only 1.77 of the total variation. Within Andean groups there was evidence of a trend of genetic distance with increasing latitude, and clustering of populations across the Andes, suggesting postglacial migration routes from multiple refugia. Implications of these results for the conservation and use of the genetic resource of this species are discussed.Resource Type: Journal Papers
Aquilaria spp. (Thymelaeaceae) are the principal source of Gaharu, a valuable resin, yet information about their reproductive ecology is almost entirely lacking. Individuals of six species (A. beccariana, A. crasna, A. filaria, A. hirta, A. malaccensis and A. microcarpa) in cultivation in Indonesia were investigated to assess reproductive phenology, pollination, seed production and germination. Seed production and seedling dispersion were also assessed in natural populations of A. beccariana, A. malaccensis and A. microcarpa in Kalimantan.
The results indicate that Aquilaria spp. have high reproductive potential, but suggest that seed dispersal might be limited in natural forests. The implications of these results for the management of Aquilaria spp. are discussed.Resource Type: Journal Papers
We generated biodiversity surfaces for both present-day and pre-human landscapes to map spatial patterns of change in a diverse ecological community to calculate the combined biodiversity impacts of habitat loss and fragmentation that accounts for the exact spatial pattern of deforestation. Our spatially-explicit, landscape-scale index of community change shows how the fine-scale configuration of habitat loss sums across a landscape to determine changes in biodiversity at a larger spatial scale. After accounting for naturally occurring within-forest heterogeneity, we estimate that the conversion of 43% of forest to grassland in a 1300 km2 landscape in New Zealand resulted in a 47% change to the beetle community.Resource Type: Journal Papers
Chapter from Biodiversity Loss & Conservation in Fragmented Forest Landscapes. The Forests of Montane Mexico and South America.Resource Type: Reports
Incorporating and utilising spatial data and mapping for NBSAPs: Guidance to support NBSAP practitionersResource Type: Reports
Technical report on the collection of geographic data, the regression analysis of explanatory factors of land use patterns, the development of a set of three alternative scenarios, and the modelling of land use changes using the CLUES model. This work was carried out as part of the ICRAN-MAR project's sub-result 1.2, "Trends in land use integrated with spatial, hydrological and oceanographic models for use in modelling".Resource Type: Reports
With a view to the future, the book points the reader to the Mountain Biodiversity Portal (http://www.mountainbiodiversity.org) that has just been launched by the GMBA and the Global Biodiversity Information Facility (GBIF). This tool has the potential to greatly facilitate access to mountain biodiversity data because it allows users to find GBIF data for specific elevational and thermal belts within their region of interest. A very similar tool already allows users of the World Database on Protected Areas (http://www.wdpa.org) to find GBIF data for a protected area of interest. Thanks to these collaborative efforts, researchers will increasingly get the data they require without the need to carry out time-consuming overlays of species and other data sets for their region of interest. The GMBA/GBIF Mountain Biodiversity Portal is a fine example for the technical possibilities of our time and will certainly help to further stimulate the creative use of georeferenced biodiversity data promoted by this book.Resource Type: Journal Papers
The Convention on Biological Diversity anticipates the establishment of a clearing house mechanism to promote and facilitate technical and scientific cooperation in the field of conservation and sustainable use of biological diversity. This paper was prepared by WCMC at the request of the Interim Secretariat, as an input to discussion on the form the clearing house for biodiversity information would take, and the manner in which it would operate. The research was supported by the UK Department of Trade and Industry.Resource Type: Reports
Substantial amounts of detailed biodiversity data exist for the world, and these data can be used to guide conservation priorities. WCMC compiled key data in order to identify areas of high species richness and endemism. This book is made available by kind permission of the UK Department for International Development for whom it was prepared.Resource Type: Reports
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