Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico

Elevation gradient studies have strengthened the evaluation of changes in richness and composition of bird assemblages. They also provide information on environmental variables that determine bird distribution, and the variables that define their population structure. Our aim was to describe their v...

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Autores: Jaime-Escalante, Nidia Gisell, Figueroa-Esquivel, Elsa Margarita, Villaseñor Gómez, José Fernando, Jacobo-Sapien, Edwin Alberto, Puebla-Olivares, Fernando
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Costa Rica
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Idioma:español
OAI Identifier:oai:portal.ucr.ac.cr:article/20255
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255
Access Level:acceso abierto
Palabra clave:Distribution patterns
altitudinal gradients
bird communities
species richness
endemic species.
Patrones de distribución
gradientes altitudinales
comunidades de aves
riqueza de especies
endemismo.
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dc.title.none.fl_str_mv Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
Distribución altitudinal de la riqueza y composición de ensamblajes de aves en una zona montañosa al sur de Nayarit, México
title Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
spellingShingle Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
Jaime-Escalante, Nidia Gisell
Distribution patterns
altitudinal gradients
bird communities
species richness
endemic species.
Patrones de distribución
gradientes altitudinales
comunidades de aves
riqueza de especies
endemismo.
title_short Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
title_full Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
title_fullStr Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
title_full_unstemmed Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
title_sort Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, Mexico
dc.creator.none.fl_str_mv Jaime-Escalante, Nidia Gisell
Figueroa-Esquivel, Elsa Margarita
Villaseñor Gómez, José Fernando
Jacobo-Sapien, Edwin Alberto
Puebla-Olivares, Fernando
author Jaime-Escalante, Nidia Gisell
author_facet Jaime-Escalante, Nidia Gisell
Figueroa-Esquivel, Elsa Margarita
Villaseñor Gómez, José Fernando
Jacobo-Sapien, Edwin Alberto
Puebla-Olivares, Fernando
author_role author
author2 Figueroa-Esquivel, Elsa Margarita
Villaseñor Gómez, José Fernando
Jacobo-Sapien, Edwin Alberto
Puebla-Olivares, Fernando
author2_role author
author
author
author
dc.subject.none.fl_str_mv Distribution patterns
altitudinal gradients
bird communities
species richness
endemic species.
Patrones de distribución
gradientes altitudinales
comunidades de aves
riqueza de especies
endemismo.
topic Distribution patterns
altitudinal gradients
bird communities
species richness
endemic species.
Patrones de distribución
gradientes altitudinales
comunidades de aves
riqueza de especies
endemismo.
description Elevation gradient studies have strengthened the evaluation of changes in richness and composition of bird assemblages. They also provide information on environmental variables that determine bird distribution, and the variables that define their population structure. Our aim was to describe their variation through an elevational cline in Southern Nayarit, Mexico. To analyze the behavior of richness across the gradient, we gathered information through point counts in nine elevational intervals (300 m from each other) from sea level to 2 700 m of elevation. With a standardized sampling effort, we produced rarefaction curves and analyzed changes in species composition by hierarchical classification using the TWINSPAN technique. In order to identify variables associated with richness changes, we examined the effect of precipitation and habitat structure via regression trees. An analysis of nonmetric multidimensional scaling (NMDS) was implemented with the purpose to determine if the changes in composition correspond to changes in vegetation types. Species richness varied significantly across the gradient: high in the lower parts of the gradient, reached its peak in the middle, and decreased monotonically with elevation. Species responded to changes in the cline and were grouped in three elevational zones. Analyses suggest that changes in richness and species composition are influenced by vegetation, its structure and precipitation regime, as well as various aspects related to habitat features and disturbance. These aspects should be taken into account in order to design appropriate strategies for the conservation of the birds of Nayarit.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-01
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
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artículo original
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info:eu-repo/semantics/article
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dc.identifier.none.fl_str_mv https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255
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url https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/26643
https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/26644
https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/34933
dc.rights.none.fl_str_mv Derechos de autor 2016 Revista de Biología Tropical
http://creativecommons.org/licenses/by/4.0
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rights_invalid_str_mv Derechos de autor 2016 Revista de Biología Tropical
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dc.publisher.none.fl_str_mv Universidad de Costa Rica
publisher.none.fl_str_mv Universidad de Costa Rica
dc.source.none.fl_str_mv Revista de Biología Tropical; Vol. 64 No. 4 (2016): Volume 64 – Regular number 4 – December 2016; 1537–1551
Revista de Biología Tropical; Vol. 64 Núm. 4 (2016): Volumen 64 – Número regular 4 – Diciembre 2016; 1537–1551
Revista Biología Tropical; Vol. 64 N.º 4 (2016): Volumen 64 – Número regular 4 – Diciembre 2016; 1537–1551
2215-2075
0034-7744
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instname_str Universidad de Costa Rica
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repository.mail.fl_str_mv jorge.polanco@ucr.ac.cr
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spelling Altitudinal distribution, richness and composition of bird assemblages in a mountainous region in Southern Nayarit, MexicoDistribución altitudinal de la riqueza y composición de ensamblajes de aves en una zona montañosa al sur de Nayarit, MéxicoJaime-Escalante, Nidia GisellFigueroa-Esquivel, Elsa MargaritaVillaseñor Gómez, José FernandoJacobo-Sapien, Edwin AlbertoPuebla-Olivares, FernandoDistribution patternsaltitudinal gradientsbird communitiesspecies richnessendemic species.Patrones de distribucióngradientes altitudinalescomunidades de avesriqueza de especiesendemismo.Elevation gradient studies have strengthened the evaluation of changes in richness and composition of bird assemblages. They also provide information on environmental variables that determine bird distribution, and the variables that define their population structure. Our aim was to describe their variation through an elevational cline in Southern Nayarit, Mexico. To analyze the behavior of richness across the gradient, we gathered information through point counts in nine elevational intervals (300 m from each other) from sea level to 2 700 m of elevation. With a standardized sampling effort, we produced rarefaction curves and analyzed changes in species composition by hierarchical classification using the TWINSPAN technique. In order to identify variables associated with richness changes, we examined the effect of precipitation and habitat structure via regression trees. An analysis of nonmetric multidimensional scaling (NMDS) was implemented with the purpose to determine if the changes in composition correspond to changes in vegetation types. Species richness varied significantly across the gradient: high in the lower parts of the gradient, reached its peak in the middle, and decreased monotonically with elevation. Species responded to changes in the cline and were grouped in three elevational zones. Analyses suggest that changes in richness and species composition are influenced by vegetation, its structure and precipitation regime, as well as various aspects related to habitat features and disturbance. These aspects should be taken into account in order to design appropriate strategies for the conservation of the birds of Nayarit.Los estudios sobre gradientes altitudinales han permitido examinar cambios en la riqueza y composición de los ensamblajes de aves, lo que hace posible obtener información sobre las variables ambientales que determinan su distribución y factores que definen la estructura. En este trabajo se describe la variación en la riqueza y composición de los ensamblajes de aves a través de un gradiente altitudinal al sur de Nayarit. Para analizar el comportamiento de la riqueza en el gradiente se obtuvo información mediante puntos de conteo en nueve intervalos altitudinales (separados cada 300 m de altitud) desde el nivel del mar hasta los 2 700 msnm. Se estandarizó el esfuerzo de muestreo y se realizaron curvas de rarefacción, y los cambios en la composición de especies se analizaron mediante análisis de clasificación jerárquica utilizando la técnica TWINSPAN. Para identificar las variables asociadas con los cambios en riqueza se analizó el efecto de la precipitación y de la estructura del hábitat mediante árboles de regresión. Para determinar si los cambios en composición responden a cambios en los tipos de vegetación se realizó un análisis de escalamiento multidimensional no métrico (NMDS). La riqueza de especies varió de forma significativa a través del gradiente: fue alta en las partes bajas del gradiente, alcanzó su valor máximo en la parte media y disminuyó monotónicamente con la elevación. Las especies respondieron a cambios en el gradiente y se agruparon en tres pisos altitudinales. Los análisis sugieren que los cambios en la riqueza y composición de las especies están influenciados por la vegetación, su estructura y precipitación, así como por diversos aspectos relacionados con características del hábitat y la perturbación. Estos aspectos deberán ser tomados en cuenta con el fin de diseñar estrategias adecuadas para la conservación de las aves de Nayarit.Universidad de Costa Rica2016-12-01info:eu-repo/semantics/publishedVersionArticleartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfapplication/pdfapplication/mswordtext/htmlapplication/pdfhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/2025510.15517/rbt.v64i4.20255Revista de Biología Tropical; Vol. 64 No. 4 (2016): Volume 64 – Regular number 4 – December 2016; 1537–1551Revista de Biología Tropical; Vol. 64 Núm. 4 (2016): Volumen 64 – Número regular 4 – Diciembre 2016; 1537–1551Revista Biología Tropical; Vol. 64 N.º 4 (2016): Volumen 64 – Número regular 4 – Diciembre 2016; 1537–15512215-20750034-774410.15517/rbt.v64i4reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRspahttps://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/26641https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/26642https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/26643https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/26644https://revistas.ucr.ac.cr/index.php/rbt/article/view/20255/34933Derechos de autor 2016 Revista de Biología Tropicalhttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-06-09T17:58:04Zoai:portal.ucr.ac.cr:article/20255Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:18:48.480Portal de Revistas UCR - Universidad de Costa Ricafalse
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