Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly

Species mean trait values are the common currency of current trait-based community ecology, in which species are approximated by a set of constant mean trait values and are assumed to be passively selected by abiotic and biotic filters according to these values. However, species mean trait values ca...

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Autores principales:	Jing Yang, Jiahui Lu, RenRen Wang, Xihua Wang, Shaopeng Li, Guochun Shen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Interspecific trait differences Community-weighted means Functional diversity Reduced light Interspecific competition Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/d8b91c3df27649a0bf86924022931ed1
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spelling	oai:doaj.org-article:d8b91c3df27649a0bf86924022931ed12021-12-01T04:59:04ZImportance and benefit of incorporating the responses of species mean trait values in trait-based community assembly1470-160X10.1016/j.ecolind.2021.108095https://doaj.org/article/d8b91c3df27649a0bf86924022931ed12021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21007603https://doaj.org/toc/1470-160XSpecies mean trait values are the common currency of current trait-based community ecology, in which species are approximated by a set of constant mean trait values and are assumed to be passively selected by abiotic and biotic filters according to these values. However, species mean trait values can respond to both species interactions and the environmental context. Do such responses in traits subsequently alter the effect of filters on communities? Can we benefit by incorporating the responses of species mean trait values in trait-based community assembly? We tested the responses of mean values of four key functional traits to reduced light and interspecific competition in a two-year common garden experiment, using 1,584 seedlings of 11 tree species. We quantified the changes in interspecific trait differences, community-weighted means (CWM), and functional diversity (FD) and compared these to their corresponding changes under the assumption of constant mean trait values. Species mean values of most examined traits underwent substantial changes (mean = 18 ± 3%) to shading and interspecific competition treatments, but the direction and extent of these responses varied among traits and species, resulting in significant changes in interspecific trait differences, CWM and FD. Considering these trait responses largely improved our ability to identify these effects of low light and interspecific competition on CWM and FD. Further, we showed that strong abiotic filters could promote trait divergence if trait responses were considered, but that this pattern would be obscured if species mean trait values were considered as constant. Consequently, incorporating the responses of species mean trait values, e.g. using multiple mean values for a trait of a species in a heterogeneous environment, into the current trait-based community ecology offers us a more accurate, sensitive, and time-saving way to identify the underlying ecological mechanisms.Jing YangJiahui LuRenRen WangXihua WangShaopeng LiGuochun ShenElsevierarticleInterspecific trait differencesCommunity-weighted meansFunctional diversityReduced lightInterspecific competitionEcologyQH540-549.5ENEcological Indicators, Vol 130, Iss , Pp 108095- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Interspecific trait differences Community-weighted means Functional diversity Reduced light Interspecific competition Ecology QH540-549.5
spellingShingle	Interspecific trait differences Community-weighted means Functional diversity Reduced light Interspecific competition Ecology QH540-549.5 Jing Yang Jiahui Lu RenRen Wang Xihua Wang Shaopeng Li Guochun Shen Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
description	Species mean trait values are the common currency of current trait-based community ecology, in which species are approximated by a set of constant mean trait values and are assumed to be passively selected by abiotic and biotic filters according to these values. However, species mean trait values can respond to both species interactions and the environmental context. Do such responses in traits subsequently alter the effect of filters on communities? Can we benefit by incorporating the responses of species mean trait values in trait-based community assembly? We tested the responses of mean values of four key functional traits to reduced light and interspecific competition in a two-year common garden experiment, using 1,584 seedlings of 11 tree species. We quantified the changes in interspecific trait differences, community-weighted means (CWM), and functional diversity (FD) and compared these to their corresponding changes under the assumption of constant mean trait values. Species mean values of most examined traits underwent substantial changes (mean = 18 ± 3%) to shading and interspecific competition treatments, but the direction and extent of these responses varied among traits and species, resulting in significant changes in interspecific trait differences, CWM and FD. Considering these trait responses largely improved our ability to identify these effects of low light and interspecific competition on CWM and FD. Further, we showed that strong abiotic filters could promote trait divergence if trait responses were considered, but that this pattern would be obscured if species mean trait values were considered as constant. Consequently, incorporating the responses of species mean trait values, e.g. using multiple mean values for a trait of a species in a heterogeneous environment, into the current trait-based community ecology offers us a more accurate, sensitive, and time-saving way to identify the underlying ecological mechanisms.
format	article
author	Jing Yang Jiahui Lu RenRen Wang Xihua Wang Shaopeng Li Guochun Shen
author_facet	Jing Yang Jiahui Lu RenRen Wang Xihua Wang Shaopeng Li Guochun Shen
author_sort	Jing Yang
title	Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
title_short	Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
title_full	Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
title_fullStr	Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
title_full_unstemmed	Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
title_sort	importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/d8b91c3df27649a0bf86924022931ed1
work_keys_str_mv	AT jingyang importanceandbenefitofincorporatingtheresponsesofspeciesmeantraitvaluesintraitbasedcommunityassembly AT jiahuilu importanceandbenefitofincorporatingtheresponsesofspeciesmeantraitvaluesintraitbasedcommunityassembly AT renrenwang importanceandbenefitofincorporatingtheresponsesofspeciesmeantraitvaluesintraitbasedcommunityassembly AT xihuawang importanceandbenefitofincorporatingtheresponsesofspeciesmeantraitvaluesintraitbasedcommunityassembly AT shaopengli importanceandbenefitofincorporatingtheresponsesofspeciesmeantraitvaluesintraitbasedcommunityassembly AT guochunshen importanceandbenefitofincorporatingtheresponsesofspeciesmeantraitvaluesintraitbasedcommunityassembly
_version_	1718405631234277376

Importance and benefit of incorporating the responses of species mean trait values in trait-based community assembly

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