Plant functional traits and the multidimensional nature of species coexistence

Plant functional traits and the multidimensional nature of species coexistence

6 páginas, 3 figuras.-- 3 tablas.-- 41 referencias.-- This article contains supporting information online at http://www.pnas.org/lookup/suppl/doi:10.1073/pnas.1413650112/-/DCSupplemental

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Main Authors: Kraft, Nathan J. B., Godoy, Óscar, Levine, J. M.
Format: artículo biblioteca
Published: National Academy of Sciences (U.S.) 2015-01
Subjects:Competition, Functional traits, Community assembly, Coexistence,
Online Access:http://hdl.handle.net/10261/115555
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spelling dig-irnas-es-10261-1155552021-11-22T13:10:33Z Plant functional traits and the multidimensional nature of species coexistence Kraft, Nathan J. B. Godoy, Óscar Levine, J. M. Competition Functional traits Community assembly Coexistence 6 páginas, 3 figuras.-- 3 tablas.-- 41 referencias.-- This article contains supporting information online at http://www.pnas.org/lookup/suppl/doi:10.1073/pnas.1413650112/-/DCSupplemental Understanding the processes maintaining species diversity is a central problem in ecology, with implications for the conservation and management of ecosystems. Although biologists often assume that trait differences between competitors promote diversity, empirical evidence connecting functional traits to the niche differences that stabilize species coexistence is rare. Obtaining such evidence is critical because traits also underlie the average fitness differences driving competitive exclusion, and this complicates efforts to infer community dynamics from phenotypic patterns. We coupled fieldparameterized mathematical models of competition between 102 pairs of annual plants with detailed sampling of leaf, seed, root, and whole-plant functional traits to relate phenotypic differences to stabilizing niche and average fitness differences. Single functional traits were often well correlated with average fitness differences between species, indicating that competitive dominance was associated with late phenology, deep rooting, and several other traits. In contrast, single functional traits were poorly correlated with the stabilizing niche differences that promote coexistence. Niche differences could only be described by combinations of traits, corresponding to differentiation between species in multiple ecological dimensions. In addition, several traits were associated with both fitness differences and stabilizing niche differences. These complex relationships between phenotypic differences and the dynamics of competing species argue against the simple use of single functional traits to infer community assembly processes but lay the groundwork for a theoretically justified trait-based community ecology. Lindsey Rice provided field assistance in all stages of the project. We thank Janneke HilleRisLambers and Marti Anderson for discussion and statistical advice and Peter Adler, Mark Vellend, and members of the J.M.L. and N.J.B.K. laboratories for comments. Peter Chesson helped us derive the stabilizing niche difference and average fitness difference in our annual plant model. The D’Antonio laboratory at University of California, Santa Barbara and the Dawson laboratory at University of California, Berkeley made the nutrient and isotope analyses possible. Peer Reviewed 2015-05-21T09:11:35Z 2015-05-21T09:11:35Z 2015-01 2015-05-21T09:11:35Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1073/pnas.1413650112 issn: 1091-6490 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 112: 797- 802 (2015) http://hdl.handle.net/10261/115555 10.1073/pnas.1413650112 25561561 http://dx.doi.org/10.1073/pnas.1413650112 none National Academy of Sciences (U.S.)
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
topic Competition
Functional traits
Community assembly
Coexistence
Competition
Functional traits
Community assembly
Coexistence
spellingShingle Competition
Functional traits
Community assembly
Coexistence
Competition
Functional traits
Community assembly
Coexistence
Kraft, Nathan J. B.
Godoy, Óscar
Levine, J. M.
Plant functional traits and the multidimensional nature of species coexistence
description 6 páginas, 3 figuras.-- 3 tablas.-- 41 referencias.-- This article contains supporting information online at http://www.pnas.org/lookup/suppl/doi:10.1073/pnas.1413650112/-/DCSupplemental
format artículo
topic_facet Competition
Functional traits
Community assembly
Coexistence
author Kraft, Nathan J. B.
Godoy, Óscar
Levine, J. M.
author_facet Kraft, Nathan J. B.
Godoy, Óscar
Levine, J. M.
author_sort Kraft, Nathan J. B.
title Plant functional traits and the multidimensional nature of species coexistence
title_short Plant functional traits and the multidimensional nature of species coexistence
title_full Plant functional traits and the multidimensional nature of species coexistence
title_fullStr Plant functional traits and the multidimensional nature of species coexistence
title_full_unstemmed Plant functional traits and the multidimensional nature of species coexistence
title_sort plant functional traits and the multidimensional nature of species coexistence
publisher National Academy of Sciences (U.S.)
publishDate 2015-01
url http://hdl.handle.net/10261/115555
work_keys_str_mv AT kraftnathanjb plantfunctionaltraitsandthemultidimensionalnatureofspeciescoexistence
AT godoyoscar plantfunctionaltraitsandthemultidimensionalnatureofspeciescoexistence
AT levinejm plantfunctionaltraitsandthemultidimensionalnatureofspeciescoexistence
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