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Título: | Low Phylogenetic Beta Diversity and Geographic Neo-endemism in Amazonian White-sand Forests |
Autor: | Guevara, Juan Ernesto Damasco, Gabriel Baraloto, Christopher Van Antwerp Fine, Paul Peñuela, María Cristina Castilho, Carolina Volkmer Vincentini, Alberto Cárdenas, Dairón Wittmann, Florian Karl Targhetta, Natália Phillips, Oliver L. Stropp, Juliana Amaral, Iêda Leão do Maas, Paul J.M. Monteagudo, Abel Lorenzo Jiménez, E. M. Thomas, Rachel Brienen, Roel J.W. Duque M, Alvaro J. Magnusson, William Ernest Ferreira, Cid A. Honorio Coronado, Euridice N. Matos, Francisca Dionízia de Almeida Arévalo, Freddy Ramirez Engel, Julien Pétronelli, Pascal Vásquez, Rodolfo V. ter Steege, H. |
Palavras-chave: | Community Structure Comparative Advantage Endemism Phylogenetics Taxonomy Amazon Basin Amazonia |
Data do documento: | 2016 |
Revista: | Biotropica |
É parte de: | Volume 48, Número 1, Pags. 34-46 |
Abstract: | Over the past three decades, many small-scale floristic studies of white-sand forests across the Amazon basin have been published. Nonetheless, a basin-wide description of both taxonomic and phylogenetic alpha and beta diversity at regional scales has never been achieved. We present a complete floristic analysis of white-sand forests across the Amazon basin including both taxonomic and phylogenetic diversity. We found strong regional differences in the signal of phylogenetic community structure with both overall and regional Net Relatedness Index and Nearest Taxon Index values found to be significantly positive leading to a pattern of phylogenetic clustering. Additionally, we found high taxonomic dissimilarity but low phylogenetic dissimilarity in pairwise community comparisons. These results suggest that recent diversification has played an important role in the assembly of white-sand forests causing geographic neo-endemism patterns at the regional scale. © 2016 The Association for Tropical Biology and Conservation. |
DOI: | 10.1111/btp.12298 |
Aparece nas coleções: | Artigos |
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