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Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands

Yoann Le Bagousse-Pinguet, Luca Borger Orcid Logo, José-Luis Quero, Miguel García-Gómez, Sara Soriano, Fernando T. Maestre, Nicolas Gross

Journal of Ecology, Volume: 103, Issue: 6, Pages: 1647 - 1657

Swansea University Author: Luca Borger Orcid Logo

DOI (Published version): 10.1111/1365-2745.12480

Abstract

Understanding how intraspecific trait variability (ITV) responds to both abiotic and biotic constraints is crucial to predict how individuals are assembled in plant communities, and how they will be impacted by ongoing global environmental change.Three key functional traits [plant height, leaf area...

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Published in: Journal of Ecology
Published: 2015
Online Access: http://onlinelibrary.wiley.com/wol1/doi/10.1111/1365-2745.12480/abstract
URI: https://cronfa.swan.ac.uk/Record/cronfa26956
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spelling 2017-01-31T10:17:34.1805028 v2 26956 2016-03-29 Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 2016-03-29 SBI Understanding how intraspecific trait variability (ITV) responds to both abiotic and biotic constraints is crucial to predict how individuals are assembled in plant communities, and how they will be impacted by ongoing global environmental change.Three key functional traits [plant height, leaf area (LA) and specific leaf area (SLA)] were assessed to quantify the range of ITV of four dominant plant species along a rainfall gradient in semi-arid Mediterranean shrublands. Variance partitioning and confirmatory multilevel path analyses were used to assess the direct and indirect effects of rainfall, space limitation (crowding) and neighbouring plant traits on ITV.The direct effect of the local neighbourhood on the trait values of subordinate individuals was as strong as the effect of rainfall. The indirect effect of rainfall, however, mediated by the effect of the local neighbourhood on the trait values of subordinate individuals, was weak. Rainfall decreased the height and SLA of subordinate individuals, but increased their LA. Neighbouring plant traits were just as strong predictors as crowding in explaining changes in ITV.Synthesis. Our study provides a framework to disentangle the direct effects of abiotic factors and their indirect effects on ITV mediated by the local neighbourhood. Our results highlight that abiotic and biotic constraints are both substantial sources of trait variations at the individual level, and can blur processes underlying changes in ITV. Considering and disentangling combined sources with an individual perspective would help to refine our predictions for community assembly and functional ecology. Journal Article Journal of Ecology 103 6 1647 1657 abiotic environment, community assembly, determinants of plant community diversity and structure, functional diversity, plant interactions, semi-arid Mediterranean shrublands, trait-based approach, 30 11 2015 2015-11-30 10.1111/1365-2745.12480 http://onlinelibrary.wiley.com/wol1/doi/10.1111/1365-2745.12480/abstract COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2017-01-31T10:17:34.1805028 2016-03-29T13:58:11.4900550 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Yoann Le Bagousse-Pinguet 1 Luca Borger 0000-0001-8763-5997 2 José-Luis Quero 3 Miguel García-Gómez 4 Sara Soriano 5 Fernando T. Maestre 6 Nicolas Gross 7 0026956-29032016141152.pdf Yoann.etal.JEcol.acceptedVersion.pdf 2016-03-29T14:11:52.0670000 Output 554760 application/pdf Accepted Manuscript true 2016-11-01T00:00:00.0000000 true
title Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
spellingShingle Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
Luca Borger
title_short Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
title_full Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
title_fullStr Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
title_full_unstemmed Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
title_sort Traits of neighbouring plants and space limitation determine intraspecific trait variability in semi-arid shrublands
author_id_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2
author_id_fullname_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
author Luca Borger
author2 Yoann Le Bagousse-Pinguet
Luca Borger
José-Luis Quero
Miguel García-Gómez
Sara Soriano
Fernando T. Maestre
Nicolas Gross
format Journal article
container_title Journal of Ecology
container_volume 103
container_issue 6
container_start_page 1647
publishDate 2015
institution Swansea University
doi_str_mv 10.1111/1365-2745.12480
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://onlinelibrary.wiley.com/wol1/doi/10.1111/1365-2745.12480/abstract
document_store_str 1
active_str 0
description Understanding how intraspecific trait variability (ITV) responds to both abiotic and biotic constraints is crucial to predict how individuals are assembled in plant communities, and how they will be impacted by ongoing global environmental change.Three key functional traits [plant height, leaf area (LA) and specific leaf area (SLA)] were assessed to quantify the range of ITV of four dominant plant species along a rainfall gradient in semi-arid Mediterranean shrublands. Variance partitioning and confirmatory multilevel path analyses were used to assess the direct and indirect effects of rainfall, space limitation (crowding) and neighbouring plant traits on ITV.The direct effect of the local neighbourhood on the trait values of subordinate individuals was as strong as the effect of rainfall. The indirect effect of rainfall, however, mediated by the effect of the local neighbourhood on the trait values of subordinate individuals, was weak. Rainfall decreased the height and SLA of subordinate individuals, but increased their LA. Neighbouring plant traits were just as strong predictors as crowding in explaining changes in ITV.Synthesis. Our study provides a framework to disentangle the direct effects of abiotic factors and their indirect effects on ITV mediated by the local neighbourhood. Our results highlight that abiotic and biotic constraints are both substantial sources of trait variations at the individual level, and can blur processes underlying changes in ITV. Considering and disentangling combined sources with an individual perspective would help to refine our predictions for community assembly and functional ecology.
published_date 2015-11-30T03:32:33Z
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score 11.013686

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