Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity

We studied three species of columnar cacti in the genus Neobuxbaumia which differ in their degree of rarity: Neobuxbaumia macrocephala (the rarest), Neobuxbaumia tetetzo (intermediate), and Neobuxbaumia mezcalaensis (the most common). To investigate the ecological factors that limit their distributi...

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Detalles Bibliográficos
Autores: Ruedas, M, Valverde-Valdés, María Teresa, Zavala-Hurtado, JA
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/141181
Acceso en línea:http://hdl.handle.net/11154/141181
Access Level:acceso abierto
Palabra clave:Arid environments
Habitat preferences
Principal component analysis
Rare species
Tehuacán-Cuicatlán region
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spelling Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarityRuedas, MValverde-Valdés, María TeresaZavala-Hurtado, JAArid environmentsHabitat preferencesPrincipal component analysisRare speciesTehuacán-Cuicatlán regionWe studied three species of columnar cacti in the genus Neobuxbaumia which differ in their degree of rarity: Neobuxbaumia macrocephala (the rarest), Neobuxbaumia tetetzo (intermediate), and Neobuxbaumia mezcalaensis (the most common). To investigate the ecological factors that limit their distribution and abundance, we surveyed 80 localities within the region of Tehuacan-Cuicatlán, in Central Mexico. At each locality we measured several environmental variables, and the density of the Neobuxbaumia populations present. We used a principal component analysis (PCA) to identify the factors that are associated to the presence/absence of each species. Additionally, we carried out multiple regressions between environmental variables and population density to test whether the variation in these variables was related to changes in abundance. The results show that factors significantly affecting the distribution of these species are mean annual temperature, altitude, rainfall, and soil properties such as texture and organic matter content. N. mezcalaensis reaches maximum population densities of 14,740 plants per ha (average density = 3943 plants per ha) and is associated with localities with relatively abundant rainfall. N. tetetzo shows maximum population densities of 14,060 plants per ha (average = 3070 plants per ha), and is associated with sites located at high latitudes and with high phosphorous content in the soil. The rarest species, N. macrocephala, shows maximum densities of 1180 plants per ha (average = 607 plants per ha) and is associated with localities with high soil calcium content. The distribution of this species is limited to sites with specific values of the environmental variables recorded, conferring it a high habitat specificity which accounts for its rarity.2013-04-05T18:45:41Z2013-04-05T18:45:41Z2013-04-05T18:45:41Z2013-04-05T18:45:41Z2006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRuedas, M; Valverde, T; Zavala-Hurtado, JA (2006). Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity. Acta Oecologica, 29:155-164.1146609Xhttp://hdl.handle.net/11154/14118110.1016/j.actao.2005.09.002http://dx.doi.org/10.1016/j.actao.2005.09.00229(2):155-164reponame:Sistema de Información de la Facultad de Ciencias, UNAMinstname:Universidad Nacional Autónoma de Méxicoinstacron:UNAMENActa Oecologicainfo:eu-repo/semantics/openAccessoai:repositorio.fciencias.unam.mx:11154/1411812025-09-17T19:24:36Z
dc.title.none.fl_str_mv Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
title Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
spellingShingle Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
Ruedas, M
Arid environments
Habitat preferences
Principal component analysis
Rare species
Tehuacán-Cuicatlán region
title_short Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
title_full Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
title_fullStr Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
title_full_unstemmed Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
title_sort Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity
dc.creator.none.fl_str_mv Ruedas, M
Valverde-Valdés, María Teresa
Zavala-Hurtado, JA
author Ruedas, M
author_facet Ruedas, M
Valverde-Valdés, María Teresa
Zavala-Hurtado, JA
author_role author
author2 Valverde-Valdés, María Teresa
Zavala-Hurtado, JA
author2_role author
author
dc.subject.none.fl_str_mv Arid environments
Habitat preferences
Principal component analysis
Rare species
Tehuacán-Cuicatlán region
topic Arid environments
Habitat preferences
Principal component analysis
Rare species
Tehuacán-Cuicatlán region
description We studied three species of columnar cacti in the genus Neobuxbaumia which differ in their degree of rarity: Neobuxbaumia macrocephala (the rarest), Neobuxbaumia tetetzo (intermediate), and Neobuxbaumia mezcalaensis (the most common). To investigate the ecological factors that limit their distribution and abundance, we surveyed 80 localities within the region of Tehuacan-Cuicatlán, in Central Mexico. At each locality we measured several environmental variables, and the density of the Neobuxbaumia populations present. We used a principal component analysis (PCA) to identify the factors that are associated to the presence/absence of each species. Additionally, we carried out multiple regressions between environmental variables and population density to test whether the variation in these variables was related to changes in abundance. The results show that factors significantly affecting the distribution of these species are mean annual temperature, altitude, rainfall, and soil properties such as texture and organic matter content. N. mezcalaensis reaches maximum population densities of 14,740 plants per ha (average density = 3943 plants per ha) and is associated with localities with relatively abundant rainfall. N. tetetzo shows maximum population densities of 14,060 plants per ha (average = 3070 plants per ha), and is associated with sites located at high latitudes and with high phosphorous content in the soil. The rarest species, N. macrocephala, shows maximum densities of 1180 plants per ha (average = 607 plants per ha) and is associated with localities with high soil calcium content. The distribution of this species is limited to sites with specific values of the environmental variables recorded, conferring it a high habitat specificity which accounts for its rarity.
publishDate 2006
dc.date.none.fl_str_mv 2006
2013-04-05T18:45:41Z
2013-04-05T18:45:41Z
2013-04-05T18:45:41Z
2013-04-05T18:45:41Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Ruedas, M; Valverde, T; Zavala-Hurtado, JA (2006). Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity. Acta Oecologica, 29:155-164.
1146609X
http://hdl.handle.net/11154/141181
10.1016/j.actao.2005.09.002
identifier_str_mv Ruedas, M; Valverde, T; Zavala-Hurtado, JA (2006). Analysis of the factors that affect the distribution and abundance of three Neobuxbaumia species (Cactaceae) that differ in their degree of rarity. Acta Oecologica, 29:155-164.
1146609X
10.1016/j.actao.2005.09.002
url http://hdl.handle.net/11154/141181
dc.language.none.fl_str_mv EN
language_invalid_str_mv EN
dc.relation.none.fl_str_mv Acta Oecologica
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv http://dx.doi.org/10.1016/j.actao.2005.09.002
29(2):155-164
reponame:Sistema de Información de la Facultad de Ciencias, UNAM
instname:Universidad Nacional Autónoma de México
instacron:UNAM
instname_str Universidad Nacional Autónoma de México
instacron_str UNAM
institution UNAM
reponame_str Sistema de Información de la Facultad de Ciencias, UNAM
collection Sistema de Información de la Facultad de Ciencias, UNAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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