Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests

ABSTRACT Taxonomic diversity is insufficient to fully characterize species co‐existence in forest ecosystems. Incorporating trait‐based and phylogenetic data into studies of communities provides insight into the mechanisms by which coexistence emerges and is maintained in forest landscapes. We integ...

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Main Authors: Shichu Liang, Miao Dong, Yong Jiang, Daniel F. Petticord, Junwei Li, Jianghui Long, Quan Su
Format: Article
Language:English
Published: Wiley 2025-07-01
Series:Ecology and Evolution
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Online Access:https://doi.org/10.1002/ece3.71616
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author Shichu Liang
Miao Dong
Yong Jiang
Daniel F. Petticord
Junwei Li
Jianghui Long
Quan Su
author_facet Shichu Liang
Miao Dong
Yong Jiang
Daniel F. Petticord
Junwei Li
Jianghui Long
Quan Su
author_sort Shichu Liang
collection DOAJ
description ABSTRACT Taxonomic diversity is insufficient to fully characterize species co‐existence in forest ecosystems. Incorporating trait‐based and phylogenetic data into studies of communities provides insight into the mechanisms by which coexistence emerges and is maintained in forest landscapes. We integrated trait‐based and phylogenetic models of community structure to gain insight into community processes in deciduous, mixed, and evergreen forests. We also explored how phylogenetic community structure may vary across environmental gradients within deciduous, mixed, and evergreen forests using a null model approach. Plants appeared to transition from being acquisitive within dry, deciduous forest plots atop fertile soils to becoming more conservative in moist, infertile soil conditions in evergreen forests. We present this as strong evidence of environmental filtering mediating plant community composition. Our models suggest a strong influence of environmental filtering in deciduous forests and competitive exclusion and random processes in mixed and evergreen settings. Besides, thicker leaves, lower SLA, and higher WD in evergreen forests than deciduous forests may reflect adaptation to chronic herbivore pressure—a key biotic filter shaping trait distribution in different forest systems. Our results suggest that phylogeny and functional traits represent different lenses through which one may view community assembly, which should be viewed independently of each other. We suggest future research incorporating both phylogenetic and trait‐based perspectives, and possibly even more axes (stress tolerance, etc.) is necessary to provide insight into community assembly.
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spelling doaj-art-d8e8de130a294ae9bb91e841b5e0d6bf2025-08-20T03:58:44ZengWileyEcology and Evolution2045-77582025-07-01157n/an/a10.1002/ece3.71616Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst ForestsShichu Liang0Miao Dong1Yong Jiang2Daniel F. Petticord3Junwei Li4Jianghui Long5Quan Su6Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Guangxi Normal University Guilin ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Guangxi Normal University Guilin ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Guangxi Normal University Guilin ChinaCornell University Ithaca New York USAKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Guangxi Normal University Guilin ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Guangxi Normal University Guilin ChinaKey Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Guangxi Normal University Guilin ChinaABSTRACT Taxonomic diversity is insufficient to fully characterize species co‐existence in forest ecosystems. Incorporating trait‐based and phylogenetic data into studies of communities provides insight into the mechanisms by which coexistence emerges and is maintained in forest landscapes. We integrated trait‐based and phylogenetic models of community structure to gain insight into community processes in deciduous, mixed, and evergreen forests. We also explored how phylogenetic community structure may vary across environmental gradients within deciduous, mixed, and evergreen forests using a null model approach. Plants appeared to transition from being acquisitive within dry, deciduous forest plots atop fertile soils to becoming more conservative in moist, infertile soil conditions in evergreen forests. We present this as strong evidence of environmental filtering mediating plant community composition. Our models suggest a strong influence of environmental filtering in deciduous forests and competitive exclusion and random processes in mixed and evergreen settings. Besides, thicker leaves, lower SLA, and higher WD in evergreen forests than deciduous forests may reflect adaptation to chronic herbivore pressure—a key biotic filter shaping trait distribution in different forest systems. Our results suggest that phylogeny and functional traits represent different lenses through which one may view community assembly, which should be viewed independently of each other. We suggest future research incorporating both phylogenetic and trait‐based perspectives, and possibly even more axes (stress tolerance, etc.) is necessary to provide insight into community assembly.https://doi.org/10.1002/ece3.71616community assemblycompetitive exclusionenvironmental gradientfunctional traitskarst forest typesphylogenetic alpha diversity
spellingShingle Shichu Liang
Miao Dong
Yong Jiang
Daniel F. Petticord
Junwei Li
Jianghui Long
Quan Su
Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests
Ecology and Evolution
community assembly
competitive exclusion
environmental gradient
functional traits
karst forest types
phylogenetic alpha diversity
title Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests
title_full Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests
title_fullStr Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests
title_full_unstemmed Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests
title_short Untangling Community Assembly Through Functional Traits and Phylogenetic Alpha Diversity in Subtropical Karst Forests
title_sort untangling community assembly through functional traits and phylogenetic alpha diversity in subtropical karst forests
topic community assembly
competitive exclusion
environmental gradient
functional traits
karst forest types
phylogenetic alpha diversity
url https://doi.org/10.1002/ece3.71616
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