Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)

We investigated if fish assemblages in neotropical floodplain lakes (cienagas) exhibit nestedness, and thus offer support to the managers of natural resources of the area for their decision making. The location was floodplain lakes of the middle section of the Magdalena river, Colombia. We applied t...

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Detalles Bibliográficos
Autores: Granado Lorencio, Carlos Antonio, Hernández Serna, Andrés, Carvajal, Juan David, Jiménez Segura, Luz Fernanda
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/75611
Acceso en línea:https://hdl.handle.net/11441/75611
https://doi.org/10.1002/ece3.238
Access Level:acceso abierto
Palabra clave:Conservation priority
fish assemblage
floodplain lakes
ichtyofauna
Magdalena river
nested subsets
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spelling Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)Granado Lorencio, Carlos AntonioHernández Serna, AndrésCarvajal, Juan DavidJiménez Segura, Luz FernandaConservation priorityfish assemblagefloodplain lakesichtyofaunaMagdalena rivernested subsetsWe investigated if fish assemblages in neotropical floodplain lakes (cienagas) exhibit nestedness, and thus offer support to the managers of natural resources of the area for their decision making. The location was floodplain lakes of the middle section of the Magdalena river, Colombia. We applied the nested subset analysis for the series of 30 cienagas (27 connected to the main river and three isolated). All fish were identified taxonomically in the field and the matrix for presence–absence in all the lakes was used for the study of the pattern of nestedness. The most diverse order was Characiformes (20 species), followed by Siluriformes (19 species). Characidae and Loricaridae were the richest families. The species found in all the lakes studied were migratory species (17), and sedentary species (33). Two species (Caquetaia kraussii and Cyphocharax magdalenae) were widespread across the cienagas archipelago (100% of incidence). Nestedness analysis showed that the distribution of species over the spatial gradient studied (840 km) is significantly nested. The cienagas deemed the most hospitable were Simiti, El Llanito, and Canaletal. Roughly, 13 out of the 50 species caught show markedly idiosyncratic distributions. The resulting dataset showed a strong pattern of nestedness in the distribution of Magdalenese fishes, and differed significantly from random species assemblages. Out of all the measurements taken in the cienagas, only the size (area) and local richness are significantly related to the range of order of nested subset patterns (r=–0.59 and –0.90, respectively, at p < 0.01). Differential species extinction is suggested as the cause of a nested species assemblage, when the reorganized matrix of species occurring in habitat islands is correlated with the island area. Our results are consistent with this hypothesis.WileyBiología Vegetal y Ecología2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/75611https://doi.org/10.1002/ece3.238reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésEcology and Evolution, 2 (6), 1296-1303.http://dx.doi.org/10.1002/ece3.238info:eu-repo/semantics/openAccessoai:idus.us.es:11441/756112026-06-17T12:51:07Z
dc.title.none.fl_str_mv Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
title Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
spellingShingle Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
Granado Lorencio, Carlos Antonio
Conservation priority
fish assemblage
floodplain lakes
ichtyofauna
Magdalena river
nested subsets
title_short Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
title_full Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
title_fullStr Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
title_full_unstemmed Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
title_sort Regionally nested patterns of fish assemblages in floodplain lakes of the Magdalena river (Colombia)
dc.creator.none.fl_str_mv Granado Lorencio, Carlos Antonio
Hernández Serna, Andrés
Carvajal, Juan David
Jiménez Segura, Luz Fernanda
author Granado Lorencio, Carlos Antonio
author_facet Granado Lorencio, Carlos Antonio
Hernández Serna, Andrés
Carvajal, Juan David
Jiménez Segura, Luz Fernanda
author_role author
author2 Hernández Serna, Andrés
Carvajal, Juan David
Jiménez Segura, Luz Fernanda
author2_role author
author
author
dc.contributor.none.fl_str_mv Biología Vegetal y Ecología
dc.subject.none.fl_str_mv Conservation priority
fish assemblage
floodplain lakes
ichtyofauna
Magdalena river
nested subsets
topic Conservation priority
fish assemblage
floodplain lakes
ichtyofauna
Magdalena river
nested subsets
description We investigated if fish assemblages in neotropical floodplain lakes (cienagas) exhibit nestedness, and thus offer support to the managers of natural resources of the area for their decision making. The location was floodplain lakes of the middle section of the Magdalena river, Colombia. We applied the nested subset analysis for the series of 30 cienagas (27 connected to the main river and three isolated). All fish were identified taxonomically in the field and the matrix for presence–absence in all the lakes was used for the study of the pattern of nestedness. The most diverse order was Characiformes (20 species), followed by Siluriformes (19 species). Characidae and Loricaridae were the richest families. The species found in all the lakes studied were migratory species (17), and sedentary species (33). Two species (Caquetaia kraussii and Cyphocharax magdalenae) were widespread across the cienagas archipelago (100% of incidence). Nestedness analysis showed that the distribution of species over the spatial gradient studied (840 km) is significantly nested. The cienagas deemed the most hospitable were Simiti, El Llanito, and Canaletal. Roughly, 13 out of the 50 species caught show markedly idiosyncratic distributions. The resulting dataset showed a strong pattern of nestedness in the distribution of Magdalenese fishes, and differed significantly from random species assemblages. Out of all the measurements taken in the cienagas, only the size (area) and local richness are significantly related to the range of order of nested subset patterns (r=–0.59 and –0.90, respectively, at p < 0.01). Differential species extinction is suggested as the cause of a nested species assemblage, when the reorganized matrix of species occurring in habitat islands is correlated with the island area. Our results are consistent with this hypothesis.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/75611
https://doi.org/10.1002/ece3.238
url https://hdl.handle.net/11441/75611
https://doi.org/10.1002/ece3.238
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Ecology and Evolution, 2 (6), 1296-1303.
http://dx.doi.org/10.1002/ece3.238
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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