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Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages

Environmental filtering consistently shapes the functional and phylogenetic structure of species across space within diverse forests. However, poor descriptions of community functional and lineage distributions across space hamper the accurate understanding of coexistence mechanisms. We combined env...

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Autores principales: Asefa, Mengesha, Cao, Min, Zhang, Guocheng, Ci, Xiuqin, Li, Jie, Yang, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5427853/
https://www.ncbi.nlm.nih.gov/pubmed/28273929
http://dx.doi.org/10.1038/s41598-017-00166-z
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author Asefa, Mengesha
Cao, Min
Zhang, Guocheng
Ci, Xiuqin
Li, Jie
Yang, Jie
author_facet Asefa, Mengesha
Cao, Min
Zhang, Guocheng
Ci, Xiuqin
Li, Jie
Yang, Jie
author_sort Asefa, Mengesha
collection PubMed
description Environmental filtering consistently shapes the functional and phylogenetic structure of species across space within diverse forests. However, poor descriptions of community functional and lineage distributions across space hamper the accurate understanding of coexistence mechanisms. We combined environmental variables and geographic space to explore how traits and lineages are filtered by environmental factors using extended RLQ and fourth-corner analyses across different spatial scales. The dispersion patterns of traits and lineages were also examined in a 20-ha tropical rainforest dynamics plot in southwest China. We found that environmental filtering was detected across all spatial scales except the largest scale (100 × 100 m). Generally, the associations between functional traits and environmental variables were more or less consistent across spatial scales. Species with high resource acquisition-related traits were associated with the resource-rich part of the plot across the different spatial scales, whereas resource-conserving functional traits were distributed in limited-resource environments. Furthermore, we found phylogenetic and functional clustering at all spatial scales. Similar functional strategies were also detected among distantly related species, suggesting that phylogenetic distance is not necessarily a proxy for functional distance. In summary, environmental filtering considerably structured the trait and lineage assemblages in this species-rich tropical rainforest.
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spelling pubmed-54278532017-05-12 Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages Asefa, Mengesha Cao, Min Zhang, Guocheng Ci, Xiuqin Li, Jie Yang, Jie Sci Rep Article Environmental filtering consistently shapes the functional and phylogenetic structure of species across space within diverse forests. However, poor descriptions of community functional and lineage distributions across space hamper the accurate understanding of coexistence mechanisms. We combined environmental variables and geographic space to explore how traits and lineages are filtered by environmental factors using extended RLQ and fourth-corner analyses across different spatial scales. The dispersion patterns of traits and lineages were also examined in a 20-ha tropical rainforest dynamics plot in southwest China. We found that environmental filtering was detected across all spatial scales except the largest scale (100 × 100 m). Generally, the associations between functional traits and environmental variables were more or less consistent across spatial scales. Species with high resource acquisition-related traits were associated with the resource-rich part of the plot across the different spatial scales, whereas resource-conserving functional traits were distributed in limited-resource environments. Furthermore, we found phylogenetic and functional clustering at all spatial scales. Similar functional strategies were also detected among distantly related species, suggesting that phylogenetic distance is not necessarily a proxy for functional distance. In summary, environmental filtering considerably structured the trait and lineage assemblages in this species-rich tropical rainforest. Nature Publishing Group UK 2017-03-09 /pmc/articles/PMC5427853/ /pubmed/28273929 http://dx.doi.org/10.1038/s41598-017-00166-z Text en © The Author(s) 2017 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Asefa, Mengesha
Cao, Min
Zhang, Guocheng
Ci, Xiuqin
Li, Jie
Yang, Jie
Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
title Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
title_full Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
title_fullStr Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
title_full_unstemmed Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
title_short Environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
title_sort environmental filtering structures tree functional traits combination and lineages across space in tropical tree assemblages
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5427853/
https://www.ncbi.nlm.nih.gov/pubmed/28273929
http://dx.doi.org/10.1038/s41598-017-00166-z
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