Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage

Competition is a prominent mechanism driving population dynamics and structuring community assemblage, which can be investigated by linking shifts in species’ ecological niche and the densities of sympatric species because the ecological release from competitive constraints is a density-dependent pr...

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Detalles Bibliográficos
Autores: Barrero Diego, Adrián, Traba Díaz, Juan, Tarjuelo Mostajo, Rocío
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/711660
Acceso en línea:http://hdl.handle.net/10486/711660
https://dx.doi.org/10.1002/ecy.4296
Access Level:acceso abierto
Palabra clave:Biotic Interaction
Centroid Distance
Competition
Ecological Niche
Habitat Use
Jaccard Similarity
Niche Overlap
Biología y Biomedicina / Biología
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spelling Increased density of conspecifics caused niche contraction in a multispecific passerine assemblageBarrero Diego, AdriánTraba Díaz, JuanTarjuelo Mostajo, RocíoBiotic InteractionCentroid DistanceCompetitionEcological NicheHabitat UseJaccard SimilarityNiche OverlapBiología y Biomedicina / BiologíaCompetition is a prominent mechanism driving population dynamics and structuring community assemblage, which can be investigated by linking shifts in species’ ecological niche and the densities of sympatric species because the ecological release from competitive constraints is a density-dependent process. In this work we determine how a steppe passerine community segregates their ecological niches and evaluate the role of competition in inducing changes in the ecological niche of species. We built multidimensional ecological niches (with Gaussian kernel density estimators) using data on the habitat features used by 10 bird species collected from seven sites in the natural steppes of Central Spain over 2 consecutive years. We computed distance and niche similarity metrics to explore the ecological niche partitioning of the bird community. Next, we ran multivariate linear regression models to evaluate the effects of conspecific and heterospecific density (as proxies of intraspecific and interspecific competition, respectively) on niche breadth and/or position of the three most abundant species. We found low niche overlap in the community assemblage but varying levels of niche similarity among pairs of species, which could increase the likelihood of current competition operating in the community. However, we found no effect of heterospecific density on niche breadth or position, although conspecific density was negatively related to niche breadth. Contrary to predictions of competition theory, increased density of conspecifics caused niche contraction. Our results from a multispecies system contribute to advanced knowledge of the biotic mechanisms structuring wildlife communities within the framework of ecological niche theoryThis study was supported by the European Union (LIFE Ricotí LIFE15-NAT-ES-000802 and LIFE Connect Ricotí LIFE20-NAT/ES/000133 projects) and the BBVA–Dron Ricotí project, funded by the BBVA Foundation. This is a contribution to the Excellence Network Remedinal 3CM (S2013/MAE2719). RT was funded by the project “CLU-2019-01—iuFOR Institute Unit of Excellence” of the University of Valladolid, funded by the Junta de Castilla y Leon and co-financed by the European Union (ERDF “Europe drives our growth”)WileyDepartamento de EcologíaFacultad de Ciencias20242024-03-25research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/711660https://dx.doi.org/10.1002/ecy.4296reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7116602026-06-23T12:46:27Z
dc.title.none.fl_str_mv Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
title Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
spellingShingle Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
Barrero Diego, Adrián
Biotic Interaction
Centroid Distance
Competition
Ecological Niche
Habitat Use
Jaccard Similarity
Niche Overlap
Biología y Biomedicina / Biología
title_short Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
title_full Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
title_fullStr Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
title_full_unstemmed Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
title_sort Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage
dc.creator.none.fl_str_mv Barrero Diego, Adrián
Traba Díaz, Juan
Tarjuelo Mostajo, Rocío
author Barrero Diego, Adrián
author_facet Barrero Diego, Adrián
Traba Díaz, Juan
Tarjuelo Mostajo, Rocío
author_role author
author2 Traba Díaz, Juan
Tarjuelo Mostajo, Rocío
author2_role author
author
dc.contributor.none.fl_str_mv Departamento de Ecología
Facultad de Ciencias
dc.subject.none.fl_str_mv Biotic Interaction
Centroid Distance
Competition
Ecological Niche
Habitat Use
Jaccard Similarity
Niche Overlap
Biología y Biomedicina / Biología
topic Biotic Interaction
Centroid Distance
Competition
Ecological Niche
Habitat Use
Jaccard Similarity
Niche Overlap
Biología y Biomedicina / Biología
description Competition is a prominent mechanism driving population dynamics and structuring community assemblage, which can be investigated by linking shifts in species’ ecological niche and the densities of sympatric species because the ecological release from competitive constraints is a density-dependent process. In this work we determine how a steppe passerine community segregates their ecological niches and evaluate the role of competition in inducing changes in the ecological niche of species. We built multidimensional ecological niches (with Gaussian kernel density estimators) using data on the habitat features used by 10 bird species collected from seven sites in the natural steppes of Central Spain over 2 consecutive years. We computed distance and niche similarity metrics to explore the ecological niche partitioning of the bird community. Next, we ran multivariate linear regression models to evaluate the effects of conspecific and heterospecific density (as proxies of intraspecific and interspecific competition, respectively) on niche breadth and/or position of the three most abundant species. We found low niche overlap in the community assemblage but varying levels of niche similarity among pairs of species, which could increase the likelihood of current competition operating in the community. However, we found no effect of heterospecific density on niche breadth or position, although conspecific density was negatively related to niche breadth. Contrary to predictions of competition theory, increased density of conspecifics caused niche contraction. Our results from a multispecies system contribute to advanced knowledge of the biotic mechanisms structuring wildlife communities within the framework of ecological niche theory
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-03-25
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/711660
https://dx.doi.org/10.1002/ecy.4296
url http://hdl.handle.net/10486/711660
https://dx.doi.org/10.1002/ecy.4296
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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