The endemic element of the Chihuahuan Desert vascular flora
Background and Aims: Endemism is a common phenomenon in arid regions. In this study we reviewed the distribution of endemic plants in the Chihuahuan Desert (DCH), which includes portions of the states of Arizona, Chihuahua, Coahuila, Durango, Nuevo Leon, Nuevo Mexico, San Luis Potosi, Tamaulipas, Te...
| Hoofdauteurs: | , , , , |
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| Formaat: | Online |
| Taal: | spa |
| Gepubliceerd in: |
Instituto de Ecología, A.C.
2017
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| Online toegang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1201 |
| _version_ | 1799771321159122944 |
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| author | Villarreal-Quintanilla, José A. Bartolomé-Hernández, Jenry A. Estrada-Castillón, Eduardo Ramírez-Rodríguez, Homero Martínez-Amador, Silvia J. |
| author_facet | Villarreal-Quintanilla, José A. Bartolomé-Hernández, Jenry A. Estrada-Castillón, Eduardo Ramírez-Rodríguez, Homero Martínez-Amador, Silvia J. |
| author_sort | Villarreal-Quintanilla, José A. |
| collection | ABM |
| description | Background and Aims: Endemism is a common phenomenon in arid regions. In this study we reviewed the distribution of endemic plants in the Chihuahuan Desert (DCH), which includes portions of the states of Arizona, Chihuahua, Coahuila, Durango, Nuevo Leon, Nuevo Mexico, San Luis Potosi, Tamaulipas, Texas and Zacatecas.Methods: A database was set up summarizing the information on the restricted species from the DCH. The following types of endemism were considered: 1) endemics which are known from the study region only, 2) quasi-endemics with distribution mainly in the DCH and some populations in the neighboring areas, 3) micro-endemics which are restricted to one location, and 4) endemics of non-arid habitats in the area.Key results: A total of 826 taxa (including species, additional infraspecific taxa and hybrids) were determined to be endemics or quasi-endemics, representing 24.87% of the total flora. Of this, 560 are endemics, 165 quasi-endemics, 176 micro-endemics and 116 are from non arid habitats. The families with the most endemics are Cactaceae (141 species), Asteraceae (106), Boraginaceae (34) and Brassicaceae (31), that represent 46.2% of the total. The genera with the highest taxa numbers are Coryphantha (24), Echinocereus (14), Mammillaria (15), Turbinicarpus (15). Nine genera are exclusive to the DCH. The dominant biological forms are perennial herbs and shrubs, frequently distributed in the xeric shrubland. The endemic distribution is heterogeneous, with a density index of 0.128 species/km2. Coahuila has the largest number of elements (31.15%).Conclusions: It is suggested to continue the protection of Cuatro Ciénegas, and portions of Brewster, as well as the Sierras La Madera and El Carmen. Sierras de Parras, La Paila and Jimulco, and Concepción del Oro and Presidio, are proposed as conservation areas, as they concentrate a large number of endemic species. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1201 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2017 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-12012022-11-17T23:00:47Z The endemic element of the Chihuahuan Desert vascular flora El elemento endémico de la flora vascular del Desierto Chihuahuense Villarreal-Quintanilla, José A. Bartolomé-Hernández, Jenry A. Estrada-Castillón, Eduardo Ramírez-Rodríguez, Homero Martínez-Amador, Silvia J. arids zones conservation deserts phytogeography conservación desiertos fitogeografía zonas áridas Background and Aims: Endemism is a common phenomenon in arid regions. In this study we reviewed the distribution of endemic plants in the Chihuahuan Desert (DCH), which includes portions of the states of Arizona, Chihuahua, Coahuila, Durango, Nuevo Leon, Nuevo Mexico, San Luis Potosi, Tamaulipas, Texas and Zacatecas.Methods: A database was set up summarizing the information on the restricted species from the DCH. The following types of endemism were considered: 1) endemics which are known from the study region only, 2) quasi-endemics with distribution mainly in the DCH and some populations in the neighboring areas, 3) micro-endemics which are restricted to one location, and 4) endemics of non-arid habitats in the area.Key results: A total of 826 taxa (including species, additional infraspecific taxa and hybrids) were determined to be endemics or quasi-endemics, representing 24.87% of the total flora. Of this, 560 are endemics, 165 quasi-endemics, 176 micro-endemics and 116 are from non arid habitats. The families with the most endemics are Cactaceae (141 species), Asteraceae (106), Boraginaceae (34) and Brassicaceae (31), that represent 46.2% of the total. The genera with the highest taxa numbers are Coryphantha (24), Echinocereus (14), Mammillaria (15), Turbinicarpus (15). Nine genera are exclusive to the DCH. The dominant biological forms are perennial herbs and shrubs, frequently distributed in the xeric shrubland. The endemic distribution is heterogeneous, with a density index of 0.128 species/km2. Coahuila has the largest number of elements (31.15%).Conclusions: It is suggested to continue the protection of Cuatro Ciénegas, and portions of Brewster, as well as the Sierras La Madera and El Carmen. Sierras de Parras, La Paila and Jimulco, and Concepción del Oro and Presidio, are proposed as conservation areas, as they concentrate a large number of endemic species. Antecedentes y Objetivos: El endemismo es un fenómeno común de los organismos en las regiones áridas. En el presente trabajo se revisó la distribución de las plantas endémicas del Desierto Chihuahuense (DCH), cuya superficie abarca parte de los estados de Arizona, Chihuahua, Coahuila, Durango, Nuevo León, Nuevo México, San Luis Potosí, Tamaulipas, Texas y Zacatecas.Métodos: A través de la recopilación de información se elaboró una base de datos de especies con distribución restringida al DCH. Se consideraron los siguientes tipos de endemismo: 1) endémicos estrictos: aquellos elementos con localización conocida solo para el área de estudio, 2) cuasi-endémicos: aquellos presentes principalmente en el DCH y algunas poblaciones en localidades vecinas, 3) micro-endémicos: los que tienen una distribución restringida a una sola localidad y 4) endémicos a la región, pero de ecosistemas no áridos.Resultados clave: Se identificaron 826 taxa (incluye especies, taxa infraespecíficos adicionales e híbridos) que representan 24.87% de la flora total, 560 elementos de distribución endémica, 165 cuasi-endémicos, 176 micro-endémicos y 116 de ecosistemas no áridos. Las familias con mayor cantidad de endemismos son Cactaceae (141 especies), Asteraceae (106), Boraginaceae (34) y Brassicaceae (31) que en conjunto representan 46.2% del total. Los géneros con mayor número de taxa son Coryphantha (24), Echinocereus (14), Mammillaria (15) y Turbinicarpus (15), así como nueve géneros exclusivos al DCH. Las formas biológicas dominantes son las hierbas perennes y arbustivas, presentándose frecuentemente en el matorral xerófilo. La distribución endémica es de forma heterogénea, con una densidad de 0.128 especies/km2. Coahuila concentra la mayor proporción de elementos (31.15%).Conclusiones: Se sugiere continuar con la protección de Cuatro Ciénegas, Brewster, las Sierras La Madera y El Carmen y proponer como áreas de conservación a las Sierras de Parras, La Paila y Jimulco, y Concepción del Oro y Presidio, por presentar una alta concentración de endemismos. Instituto de Ecología, A.C. 2017-01-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/1201 10.21829/abm118.2017.1201 Acta Botanica Mexicana; No. 118 (2017); 65-96 Acta Botanica Mexicana; Núm. 118 (2017); 65-96 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1201/1400 https://abm.ojs.inecol.mx/index.php/abm/article/view/1201/html Derechos de autor 2016 Acta Botanica Mexicana |
| spellingShingle | Villarreal-Quintanilla, José A. Bartolomé-Hernández, Jenry A. Estrada-Castillón, Eduardo Ramírez-Rodríguez, Homero Martínez-Amador, Silvia J. The endemic element of the Chihuahuan Desert vascular flora |
| title | The endemic element of the Chihuahuan Desert vascular flora |
| title_full | The endemic element of the Chihuahuan Desert vascular flora |
| title_fullStr | The endemic element of the Chihuahuan Desert vascular flora |
| title_full_unstemmed | The endemic element of the Chihuahuan Desert vascular flora |
| title_short | The endemic element of the Chihuahuan Desert vascular flora |
| title_sort | endemic element of the chihuahuan desert vascular flora |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1201 |
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