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Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients

Vincent Maire, Nicolas Gross, Luca Borger Orcid Logo, Raphaël Proulx, Christian Wirth, Laíse da Silveira Pontes, Jean-François Soussana, Frédérique Louault

New Phytologist, Volume: 196, Issue: 2, Pages: 497 - 509

Swansea University Author: Luca Borger Orcid Logo

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DOI (Published version): 10.1111/j.1469-8137.2012.04287.x

Abstract

1.Deterministic niche-based processes have been proposed to explain species relative abundance within communities but lead to different predictions: habitat-filtering (HF) predicts dominant species to exhibit similar traits while niche differentiation (ND) requires that species have dissimilar trait...

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Published in: New Phytologist
Published: 2012
URI: https://cronfa.swan.ac.uk/Record/cronfa16627
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spelling 2021-07-16T14:56:39.1156110 v2 16627 2013-12-14 Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 2013-12-14 SBI 1.Deterministic niche-based processes have been proposed to explain species relative abundance within communities but lead to different predictions: habitat-filtering (HF) predicts dominant species to exhibit similar traits while niche differentiation (ND) requires that species have dissimilar traits to coexist. 2.Using a multiple trait-based approach, we evaluated the relative roles of HF and ND in determining species abundances in productive grasslands. Four dimensions of the functional niche of 12 co-occurring grass species were identified using 28 plant functional traits. Using this description of the species niche, we investigated patterns of functional similarity and dissimilarity and linked them to abundance in randomly-assembled six-species communities submitted to fertilization/disturbance treatments. 3.Our results suggest that HF and ND jointly determined species abundance by acting on contrasting niche dimensions. The effect of HF decreased relatively to ND with increasing disturbance and decreasing fertilization. Dominant species exhibited similar traits in communities whereas dissimilarity favored the coexistence of rare species with dominants by decreasing inter-specific competition. This stabilizing effect on diversity was suggested by a negative relationship between species overyielding and relative abundance. 4.We discuss the importance of considering independent dimensions of functional niche to better understand species abundance and coexistence within communities. Journal Article New Phytologist 196 2 497 509 axes of specialization,biodiversity, coexistence, dominant species,over-yielding, plant functional dissimilarity,plant functional trait, subordinate species 31 12 2012 2012-12-31 10.1111/j.1469-8137.2012.04287.x COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2021-07-16T14:56:39.1156110 2013-12-14T01:35:10.1705578 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Vincent Maire 1 Nicolas Gross 2 Luca Borger 0000-0001-8763-5997 3 Raphaël Proulx 4 Christian Wirth 5 Laíse da Silveira Pontes 6 Jean-François Soussana 7 Frédérique Louault 8
title Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
spellingShingle Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
Luca Borger
title_short Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
title_full Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
title_fullStr Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
title_full_unstemmed Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
title_sort Habitat filtering and niche differentiation jointly explain species relative abundance within grassland communities along fertility and disturbance gradients
author_id_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2
author_id_fullname_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
author Luca Borger
author2 Vincent Maire
Nicolas Gross
Luca Borger
Raphaël Proulx
Christian Wirth
Laíse da Silveira Pontes
Jean-François Soussana
Frédérique Louault
format Journal article
container_title New Phytologist
container_volume 196
container_issue 2
container_start_page 497
publishDate 2012
institution Swansea University
doi_str_mv 10.1111/j.1469-8137.2012.04287.x
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
document_store_str 0
active_str 0
description 1.Deterministic niche-based processes have been proposed to explain species relative abundance within communities but lead to different predictions: habitat-filtering (HF) predicts dominant species to exhibit similar traits while niche differentiation (ND) requires that species have dissimilar traits to coexist. 2.Using a multiple trait-based approach, we evaluated the relative roles of HF and ND in determining species abundances in productive grasslands. Four dimensions of the functional niche of 12 co-occurring grass species were identified using 28 plant functional traits. Using this description of the species niche, we investigated patterns of functional similarity and dissimilarity and linked them to abundance in randomly-assembled six-species communities submitted to fertilization/disturbance treatments. 3.Our results suggest that HF and ND jointly determined species abundance by acting on contrasting niche dimensions. The effect of HF decreased relatively to ND with increasing disturbance and decreasing fertilization. Dominant species exhibited similar traits in communities whereas dissimilarity favored the coexistence of rare species with dominants by decreasing inter-specific competition. This stabilizing effect on diversity was suggested by a negative relationship between species overyielding and relative abundance. 4.We discuss the importance of considering independent dimensions of functional niche to better understand species abundance and coexistence within communities.
published_date 2012-12-31T03:19:00Z
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score 10.998228

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