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The lower line represents PE, calculated as the sum of branch lengths of the genera that exclusively inhabit in each of the five areas. Evolutionary measures such as phylogenetic diversity and community structure can aid the evaluation of taxa and ecosystems for conservation purposes. Our study has shown interesting geographic patterns of the spatial structure of PD values in a highly endemic territory.
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Even though the addition of more taxa will be useful for a more complete overview, we believe that there are areas of Chile that harbor a larger evolutionary history than others and therefore should be looked at more closely, especially when designing conservation strategies. The authors wish to thank S. Roquet for kindly providing aligned sequences of their published supertree of European flora, and C.
Riveros for their help with extracting information from GenBank. We are also grateful to two anonymous reviewers for their valuable contributions.
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Chilean endemic genera and species used in this study, with their GenBank accession numbers. Additional Supporting Information may be found in the online version of this article:. Backbone phylogeny used Thuiller et al. Chilean endemic genera are highlighted in red.
National Center for Biotechnology Information , U. Journal List Ecol Evol v. Published online Feb This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Abstract This study uses phylogeny-based measures of evolutionary potential phylogenetic diversity and community structure to evaluate the evolutionary value of vascular plant genera endemic to Chile.
Community structure, endemicity, phylogenetic diversity, vascular plants. Introduction The maintenance of the evolutionary and ecological processes that guarantee the sustainability of biological diversity has been identified as the main goal of any action directed to the protection of natural environments Purvis et al. Backbone phylogeny The available genus-level supertree of Thuiller et al. Phylogenetic analyses Thuiller et al. Null models and phylogenetic diversity versus species richness As the PD metric is mathematically linked to taxon richness, we used the following approaches in order to accurately compare geographic patterns of PD and the relationship between PD and genus richness: Table 1 Results of phylogenetic diversity PD measures and species richness SR using Chilean endemic genera as a single community.
Open in a separate window. Table 2 Results of community structure measures using Chilean endemic genera as a single community. Geographic patterns of PD and richness The general distribution pattern of generic richness in one-degree grid cells coincides largely with the pattern observed for PD, both concentrating in central Chile and decreasing to the north and south Fig. Table 3 Community structure measures of Chilean endemic vascular plant genera in five-degree latitude intervals.
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Table 4 Phylogenetic diversity PD and phylogenetic endemism PE calculated for each of the five latitudinal areas defined as strips of five degrees. Acknowledgments The authors wish to thank S. Conflict of Interest None declared. Supporting Information Additional Supporting Information may be found in the online version of this article: Figure S1 Backbone phylogeny used Thuiller et al. Click here to view. La historia del bosque templado chileno. Conservation targetes in South American temperate forests. Latitudinal patterns and regionalization of plant diversity along a km gradient in continental Chile.
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Endemicity and evolutionary value: a study of Chilean endemic vascular plant genera
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