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Type:	Artigo de Periódico
Title:	Evolutionary diversity in tropical tree communities peaks at intermediate precipitation
Authors:	Danilo Rafael Mesquita Neves Ricardo A. Segovia Luzmila Arroyo Carlos Reynel José Luis Marcelo Peña Isau Huamantupa Chuquimaco Daniel Villarroel Guillermo Alexander Parada Aniceto Daza Reynaldo Linares Palomino Leandro V. Ferreira Kyle Graham Dexter Rafael de Paiva Salomao Geovane Souza Siqueira Marcelo Nascimento Claudio Nicoletti de Fraga Toby Pennington Timothy Baker Fernanda Coelho de Souza Ary Teixeira de Oliveira Filho Luciano Paganucci Queiroz Haroldo Cavalcante de Lima Marcelo Fragomeni Simon Gwilym Peter Lewis
Abstract:	Global patterns of species and evolutionary diversity in plants are primarily determined by a temperature gradient, but precipitation gradients may be more important within the tropics, where plant species richness is positively associated with the amount of rainfall. The impact of precipitation on the distribution of evolutionary diversity, however, is largely unexplored. Here we detail how evolutionary diversity varies along precipitation gradients by bringing together a comprehensive database on the composition of angiosperm tree communities across lowland tropical South America (2,025 inventories from wet to arid biomes), and a new, large-scale phylogenetic hypothesis for the genera that occur in these ecosystems. We find a marked reduction in the evolutionary diversity of communities at low precipitation. However, unlike species richness, evolutionary diversity does not continually increase with rainfall. Rather, our results show that the greatest evolutionary diversity is found in intermediate precipitation regimes, and that there is a decline in evolutionary diversity above 1,490 mm of mean annual rainfall. If conservation is to prioritise evolutionary diversity, areas of intermediate precipitation that are found in the South American ‘arc of deforestation’, but which have been neglected in the design of protected area networks in the tropics, merit increased conservation attention.
Subject:	Plantas América do Sul
language:	por
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	ICB - DEPARTAMENTO DE BOTÂNICA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.1038/s41598-019-55621-w
URI:	http://hdl.handle.net/1843/55130
Issue Date:	2020
metadata.dc.url.externa:	https://www.nature.com/articles/s41598-019-55621-w
metadata.dc.relation.ispartof:	Scientific Reports
Appears in Collections:	Artigo de Periódico

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