DOI: 10.1007/s10531-019-01910-9
论文题名: The mechanisms explaining tree species richness and composition are convergent in a megadiverse hotspot
作者: Zwiener V.P. ; Padial A.A. ; Marques M.C.M.
刊名: Biodiversity and Conservation
ISSN: 9603115
出版年: 2020
卷: 29, 期: 3 语种: 英语
英文关键词: Atlantic Forest
; Biodiversity
; Climate
; Soil
; Spatial structure
; Tropical forest
Scopus关键词: abundance
; additive
; biodiversity
; biome
; environmental factor
; plant community
; species diversity
; species richness
; tropical forest
; Atlantic Forest
英文摘要: Understanding the drivers of species’ geographic distribution and assembly of communities is one of the most intriguing questions in ecology and has become extremely important in face of global changes. This study aims to assess broad-scale patterns of tree species diversity and compare the importance of environmental correlates relative to purely spatial factors in structuring communities in the Brazilian Atlantic Forest. We compiled abundance data from 2948 species in 117 localities across the entire biome and obtained climatic and soil variables that we hypothesized to be environmental filters. We constructed correlograms for species richness and composition and assessed the relative importance of correlates using spatially explicit generalized additive models coupled with information-theoretic analyses. Variation partitioning was used to infer the relative importance of environmental- and spatial-based hypotheses. Species richness presented positive spatial correlation of ~ 435 km beyond which it became negative and again positive at the furthest distances, whereas compositional turnover showed positive correlation of ~ 435–555 km with decreasing similarity in increasing distances. Climatic variables were important factors correlating with richness patterns, with soil being less important. Species composition was significantly correlated with environmental variables and spatial constraints. The spatial component showed similar amount of explanation in statistical models compared to the environmental component. Our results suggest a combined contribution of environment, stochasticity, and historical-dispersion processes in patterns of biodiversity. More interestingly, a similar set of variables was the better correlates of species richness and composition, indicating convergence of driving factors for both descriptors of plant communities. © 2019, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159048
Appears in Collections: 气候变化与战略
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作者单位: Departamento de Biodiversidade, Setor Palotina, Universidade Federal do Paraná, Rua Pioneiro, 2153, Jardim Dallas, Palotina, PR CEP 85950-000, Brazil; Laboratório de Análise e Síntese em Biodiversidade, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Curitiba, PR CEP 81531-980, Brazil; Laboratório de Ecologia Vegetal, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Caixa Postal. 19031, Curitiba, PR CEP 81531-980, Brazil
Recommended Citation:
Zwiener V.P.,Padial A.A.,Marques M.C.M.. The mechanisms explaining tree species richness and composition are convergent in a megadiverse hotspot[J]. Biodiversity and Conservation,2020-01-01,29(3)