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https://repositorio.inpa.gov.br/handle/1/15879
Título: | Phylogenetic diversity of Amazonian tree communities |
Autor: | Honorio Coronado, Euridice N. Dexter, Kyle Graham Pennington, R. Toby Chave, Jérôme Lewis, Simon L. Alexiades, Miguel N. Alvarez, Esteban Alves de Oliveira, Atila Amaral, Iêda Leão do Araujo-Murakami, Alejandro Arets, Eric J.M.M. Aymard, Gerardo Antonio C. Baraloto, Christopher Bonal, Damien Brienen, Roel J.W. Cerón, Carlos E. Cornejo-Valverde, Fernando Di Fiore, Anthony Farfan-Rios, William Feldpausch, Ted R. Higuchi, Niro Huamantupa-Chuquimaco, Isau Laurance, Susan G.W. Laurance, William F. Lopez-Gonzalez, Gabriela Marimon, Beatriz Schwantes Marimon Júnior, Ben Hur Monteagudo-Mendoza, Abel Neill, David A. Cuenca, Walter Palacios Peñuela, María Cristina Pitman, Nigel C.A. Prieto, Adriana Quesada, Carlos Alberto Ramírez-Angulo, Hirma Rudas, Agustín Ruschel, Ademir Roberto Salinas, Norma Salomão, Rafael Paiva Andrade, Ana Segalin de Silman, Miles R. Spironello, Wilson Roberto ter Steege, H. Terborgh, John W. Toledo, Marisol Valenzuela, Luis Guimarães Vieira, Ima Cèlia Torre, Emilio Vilanova Vos, Vincent A. Phillips, Oliver L. |
Palavras-chave: | Dicotyledon Monocotyledon Phylogenetics Plant Community Species Richness Taxonomy Amazon Basin Liliopsida Magnoliids Magnoliophyta |
Data do documento: | 2015 |
Revista: | Diversity and Distributions |
É parte de: | Volume 21, Número 11, Pags. 1295-1307 |
Abstract: | Aim: To examine variation in the phylogenetic diversity (PD) of tree communities across geographical and environmental gradients in Amazonia. Location: Two hundred and eighty-three c. 1 ha forest inventory plots from across Amazonia. Methods: We evaluated PD as the total phylogenetic branch length across species in each plot (PDss), the mean pairwise phylogenetic distance between species (MPD), the mean nearest taxon distance (MNTD) and their equivalents standardized for species richness (ses.PDss, ses.MPD, ses.MNTD). We compared PD of tree communities growing (1) on substrates of varying geological age; and (2) in environments with varying ecophysiological barriers to growth and survival. Results: PDss is strongly positively correlated with species richness (SR), whereas MNTD has a negative correlation. Communities on geologically young- and intermediate-aged substrates (western and central Amazonia respectively) have the highest SR, and therefore the highest PDss and the lowest MNTD. We find that the youngest and oldest substrates (the latter on the Brazilian and Guiana Shields) have the highest ses.PDss and ses.MNTD. MPD and ses.MPD are strongly correlated with how evenly taxa are distributed among the three principal angiosperm clades and are both highest in western Amazonia. Meanwhile, seasonally dry tropical forest (SDTF) and forests on white sands have low PD, as evaluated by any metric. Main conclusions: High ses.PDss and ses.MNTD reflect greater lineage diversity in communities. We suggest that high ses.PDss and ses.MNTD in western Amazonia results from its favourable, easy-to-colonize environment, whereas high values in the Brazilian and Guianan Shields may be due to accumulation of lineages over a longer period of time. White-sand forests and SDTF are dominated by close relatives from fewer lineages, perhaps reflecting ecophysiological barriers that are difficult to surmount evolutionarily. Because MPD and ses.MPD do not reflect lineage diversity per se, we suggest that PDss, ses.PDss and ses.MNTD may be the most useful diversity metrics for setting large-scale conservation priorities. © 2015 John Wiley & Sons Ltd. |
DOI: | 10.1111/ddi.12357 |
Aparece nas coleções: | Artigos |
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