Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure

Plant specialization and pollination network structure play important roles in community assembly. Floral traits can mediate plant–pollinator interactions and thus have important impacts on nestedness and modularity of pollination network. When such traits are phylogenetically conserved, therefore,...

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Main Authors: Ganju Xiang, Yunyi Jiang, Jinmao Lan, Liuying Huang, Lijun Hao, Zhiqian Liu, Jing Xia
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2023.1084995/full
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author Ganju Xiang
Ganju Xiang
Yunyi Jiang
Jinmao Lan
Liuying Huang
Lijun Hao
Zhiqian Liu
Jing Xia
author_facet Ganju Xiang
Ganju Xiang
Yunyi Jiang
Jinmao Lan
Liuying Huang
Lijun Hao
Zhiqian Liu
Jing Xia
author_sort Ganju Xiang
collection DOAJ
description Plant specialization and pollination network structure play important roles in community assembly. Floral traits can mediate plant–pollinator interactions and thus have important impacts on nestedness and modularity of pollination network. When such traits are phylogenetically conserved, therefore, phylogeny and traits should predict network structure to similar degrees. Moreover, conserved network structures were also found attributed to pollination syndrome or pollination system. However, we still know little about the relation between pollination syndrome and pollination network, especially under a phylogenetic framework. Herein, we established a phylogenetic framework including five floral traits (flower density, floral size, floral shape, floral symmetry, and floral color) and five species-level metrics (species strength, weighted closeness, specialization d’, nestedness contribution, and modularity contribution) to test how floral traits could directly or indirectly influence species’ specialization and network structure in central China. Phylogenetic signals were found in all floral traits except flower density. Structural equation model and phylogenetic structural equation model results showed that both floral size and floral density affected plant specialization and its contribution to network modularity indirectly. However, compared with phylogenetic independent flower density, phylogenetic conserved floral size had much more complexed influences, having a direct influence both on species’ specialization and on modularity contribution. In this nested and modular network, abundant species with larger flowers tend to be more central and had larger values of z. Floral shape, symmetry, and color could act as co-flowering filters in pollination sharing and help to shape network modularity. Our results emphasize that phylogenetically conserved traits partially represent pollination syndrome and are important drivers for modular structure of local pollination network. This study may improve the understanding how the evolutionary history and ecological process drive local network structure and dynamics.
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spelling doaj.art-1f87d4445b3c4e00bf369b23719382332023-01-24T05:29:12ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-01-011410.3389/fpls.2023.10849951084995Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structureGanju Xiang0Ganju Xiang1Yunyi Jiang2Jinmao Lan3Liuying Huang4Lijun Hao5Zhiqian Liu6Jing Xia7Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaState Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, ChinaHubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaHubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaHubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaHubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaHubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaHubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central Minzu University, Wuhan, Hubei, ChinaPlant specialization and pollination network structure play important roles in community assembly. Floral traits can mediate plant–pollinator interactions and thus have important impacts on nestedness and modularity of pollination network. When such traits are phylogenetically conserved, therefore, phylogeny and traits should predict network structure to similar degrees. Moreover, conserved network structures were also found attributed to pollination syndrome or pollination system. However, we still know little about the relation between pollination syndrome and pollination network, especially under a phylogenetic framework. Herein, we established a phylogenetic framework including five floral traits (flower density, floral size, floral shape, floral symmetry, and floral color) and five species-level metrics (species strength, weighted closeness, specialization d’, nestedness contribution, and modularity contribution) to test how floral traits could directly or indirectly influence species’ specialization and network structure in central China. Phylogenetic signals were found in all floral traits except flower density. Structural equation model and phylogenetic structural equation model results showed that both floral size and floral density affected plant specialization and its contribution to network modularity indirectly. However, compared with phylogenetic independent flower density, phylogenetic conserved floral size had much more complexed influences, having a direct influence both on species’ specialization and on modularity contribution. In this nested and modular network, abundant species with larger flowers tend to be more central and had larger values of z. Floral shape, symmetry, and color could act as co-flowering filters in pollination sharing and help to shape network modularity. Our results emphasize that phylogenetically conserved traits partially represent pollination syndrome and are important drivers for modular structure of local pollination network. This study may improve the understanding how the evolutionary history and ecological process drive local network structure and dynamics.https://www.frontiersin.org/articles/10.3389/fpls.2023.1084995/fullphylogenetically conserved floral traitsphylogenetically independent floral traitsfloral sizeflower densityplant specializationpollination network
spellingShingle Ganju Xiang
Ganju Xiang
Yunyi Jiang
Jinmao Lan
Liuying Huang
Lijun Hao
Zhiqian Liu
Jing Xia
Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
Frontiers in Plant Science
phylogenetically conserved floral traits
phylogenetically independent floral traits
floral size
flower density
plant specialization
pollination network
title Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
title_full Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
title_fullStr Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
title_full_unstemmed Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
title_short Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
title_sort different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure
topic phylogenetically conserved floral traits
phylogenetically independent floral traits
floral size
flower density
plant specialization
pollination network
url https://www.frontiersin.org/articles/10.3389/fpls.2023.1084995/full
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