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Phylogenetic turnover in tropical tree communities: impact of environmental filtering, biogeography and mesoclimatic niche conservatism

Global ecology and biogeography, 2012-10, Vol.21 (10), p.1007-1016 [Peer Reviewed Journal]

Copyright © 2012 Blackwell Publishing Ltd ;2012 Blackwell Publishing Ltd ;2015 INIST-CNRS ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1466-822X ;EISSN: 1466-8238 ;DOI: 10.1111/j.1466-8238.2011.00742.x ;CODEN: GEBIFS

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Title:
Phylogenetic turnover in tropical tree communities: impact of environmental filtering, biogeography and mesoclimatic niche conservatism
Author: Hardy, Olivier J. ; Couteron, Pierre ; Munoz, François ; Ramesh, B. R. ; Pélissier, Raphaël
Subjects: Animal and plant ecology ; Animal, plant and microbial ecology ; Assembly processes ; Biodiversity and Ecology ; Biogeography ; Biological and medical sciences ; Biological taxonomies ; community phylogenetics ; Datasets ; Ecological genetics ; Ecological niches ; environmental filtering ; Environmental Sciences ; Forest ecology ; Forestry ; Fundamental and applied biological sciences. Psychology ; General aspects ; General forest ecology ; Generalities. Production, biomass. Quality of wood and forest products. General forest ecology ; neutral communities ; phylodiversity ; phylogenetic signal ; phylogenetic turnover ; Phylogenetics ; Plant ecology ; Rain ; species turnover ; Synecology ; Trees ; tropical rain forest
Is Part Of: Global ecology and biogeography, 2012-10, Vol.21 (10), p.1007-1016
Description: Aim: We addressed the roles of environmental filtering, historical biogeography and evolutionary niche conservatism on the phylogenetic structure of tropical tree communities with the following questions. (1) What is the impact of mesoclimatic gradients and dispersal limitation on phylogenetic turnover and species turnover? (2) How does phylogenetic turnover between continents compare in intensity with the turnover driven by climatic gradients at a regional scale? (3) Are independent phylogenetic reconstructions of the mesoclimatic niche of clades congruent between continents? Location: Panama Canal Watershed and Western Ghats (India), two anciently divergent biogeographic contexts but with comparable rainfall gradients. Methods: Using floristic data for 50 1-ha plots in each region, independent measures of phylogenetic turnover (Π ST ) and species turnover (Jaccard) between plots were regressed on geographic and ecological distances. Mesoclimatic niches were reconstructed for each node of the phylogeny and compared between the two continents. Results: (1) The phylogenetic turnover within each region is best explained by mesoclimatic differences (environmental filtering), while species turnover depends both on mesoclimatic differences and geographic distances (dispersal limitation). (2) The phylogenetic turnover between continents (Π ST = 0.009) is comparable to that caused by mesoclimatic gradients within regions (Π ST = 0.010) and both effects seem cumulative. (3) Independent phylogenetic reconstructions of the mesoclimatic niches were strongly correlated between the two continents (r = 0.61), despite the absence of shared species. Main conclusions: Our results demonstrate a world-wide deep phylogenetic signal for mesoclimatic niche within a biome, indicating that positive phylogenetic turnover at a regional scale reflects environmental filtering in plant communities.
Publisher: Oxford, UK: Blackwell Publishing Ltd
Language: English
Identifier: ISSN: 1466-822X
EISSN: 1466-8238
DOI: 10.1111/j.1466-8238.2011.00742.x
CODEN: GEBIFS
Source: Alma/SFX Local Collection

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Phylogenetic turnover in tropical tree communities: impact of environmental filtering, biogeography and mesoclimatic niche conservatism

Copyright © 2012 Blackwell Publishing Ltd ;2012 Blackwell Publishing Ltd ;2015 INIST-CNRS ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1466-822X ;EISSN: 1466-8238 ;DOI: 10.1111/j.1466-8238.2011.00742.x ;CODEN: GEBIFS

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