Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico
Background and Aims: Human activities have changed the structure and composition of ecosystems. These activities can fragment the natural landscape. This heterogeneity could generate greater diversity that allows the maintenance of the basic functions of the ecosystem. An analysis of plant diversity...
| Principais autores: | , , |
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| Formato: | Online |
| Idioma: | spa |
| Publicado em: |
Instituto de Ecología, A.C.
2019
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| Acesso em linha: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1413 |
| _version_ | 1799771345742987264 |
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| author | Muñóz-Jiménez, Oscar López Acosta, Juan Carlos Villegas Patraca, Rafael |
| author_facet | Muñóz-Jiménez, Oscar López Acosta, Juan Carlos Villegas Patraca, Rafael |
| author_sort | Muñóz-Jiménez, Oscar |
| collection | ABM |
| description | Background and Aims: Human activities have changed the structure and composition of ecosystems. These activities can fragment the natural landscape. This heterogeneity could generate greater diversity that allows the maintenance of the basic functions of the ecosystem. An analysis of plant diversity in the area of La Venta, Oaxaca, is presented to infer how species can contribute to the conservation of biodiversity and maintaining the ecosystem functionality.Methods: Seven elements of the landscape were identified by satellite images: medium subperennifolious tropical forest (MSTF), deciduous forest (DF), DF secondary vegetation (DFSV), gallery forest (GF), vegetation strips (VS) and agricultural area (AGRO). Within these sites, indices of diversity α and β, similarity and indices of relative importance were calculated.Key results: A total of 303 taxons were recorded in the six elements of the anthropized landscape. Of these, 231 were identified up to species level, and 38 at genus level. The MSB was the element with the greatest richness with 131 species, while AGRO was the poorest with only 10 registered species. The patterns of composition, structure, richness and diversity reported in this study are consistent with what has been described for dry tropical forests.Conclusions: Each of the landscape elements described is probably playing an important role in biodiversity retention. On the one hand, elements such as the SMS and the SBC may be functioning as sources of food and shelter for species of flora and fauna most associated with conserved habitats, while the BG and the VF, on the other hand, may be contributing to the connectivity of the landscape, as they function as biological corridors. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1413 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2019 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-14132022-11-17T22:00:07Z Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico Diversidad y estructura vegetal en un paisaje antropizado de La Venta, Juchitán, Oaxaca, México Muñóz-Jiménez, Oscar López Acosta, Juan Carlos Villegas Patraca, Rafael conservation dry tropical forests floristic analyses modified landscape vascular plants análisis florístico bosques tropicales secos conservación paisaje modificado plantas vasculares Background and Aims: Human activities have changed the structure and composition of ecosystems. These activities can fragment the natural landscape. This heterogeneity could generate greater diversity that allows the maintenance of the basic functions of the ecosystem. An analysis of plant diversity in the area of La Venta, Oaxaca, is presented to infer how species can contribute to the conservation of biodiversity and maintaining the ecosystem functionality.Methods: Seven elements of the landscape were identified by satellite images: medium subperennifolious tropical forest (MSTF), deciduous forest (DF), DF secondary vegetation (DFSV), gallery forest (GF), vegetation strips (VS) and agricultural area (AGRO). Within these sites, indices of diversity α and β, similarity and indices of relative importance were calculated.Key results: A total of 303 taxons were recorded in the six elements of the anthropized landscape. Of these, 231 were identified up to species level, and 38 at genus level. The MSB was the element with the greatest richness with 131 species, while AGRO was the poorest with only 10 registered species. The patterns of composition, structure, richness and diversity reported in this study are consistent with what has been described for dry tropical forests.Conclusions: Each of the landscape elements described is probably playing an important role in biodiversity retention. On the one hand, elements such as the SMS and the SBC may be functioning as sources of food and shelter for species of flora and fauna most associated with conserved habitats, while the BG and the VF, on the other hand, may be contributing to the connectivity of the landscape, as they function as biological corridors. Antecedentes y Objetivos: Las actividades humanas han cambiado la estructura y composición de los ecosistemas. Estas actividades frecuentemente fragmentan el paisaje natural. La heterogeneidad que se genera puede propiciar una mayor diversidad que permita el mantenimiento de las funciones básicas del ecosistema. En este trabajo se presenta un análisis de la diversidad vegetal en la zona de La Venta, Oaxaca, para inferir cómo las especies pueden contribuir en la conservación de biodiversidad y que sean capaces de mantener la funcionalidad del ecosistema.Métodos: Con imágenes de satélites se identificaron seis elementos del paisaje: selva mediana subperennifolia (SMS), selva baja caducifolia (SBC), acahual de SBC (ASBC), bosque de galería (BG), franjas de vegetación (FV) y área agropecuaria (AGRO). Dentro de estos sitios se calcularon índices de diversidad α y β, similitud e índices de importancia relativa.Resultados clave: Se registró un total de 303 taxones de plantas vasculares en los seis elementos que comprenden el paisaje antropizado. De estos, 231 fueron identificados hasta nivel de especie y 38 a nivel de género. La SMS fue el elemento con mayor riqueza con 131 especies registradas mientras que AGRO fue la más pobre con sólo 10. Los patrones de composición, estructura, riqueza y diversidad reportados en este estudio concuerdan con lo descrito para los bosques tropicales secos.Conclusiones: Cada uno de los elementos del paisaje descritos probablemente estén jugando un papel importante en la retención de biodiversidad. Los elementos como la SMS y la SBC pueden estar funcionando como fuentes de alimentación y refugio de especies de flora y fauna más asociadas a hábitats conservados, mientras que el BG y las FV pueden estar contribuyendo a la conectividad del paisaje, al funcionar como corredores biológicos. Instituto de Ecología, A.C. 2019-01-24 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf application/epub+zip application/xml https://abm.ojs.inecol.mx/index.php/abm/article/view/1413 10.21829/abm126.2019.1413 Acta Botanica Mexicana; No. 126 (2019) Acta Botanica Mexicana; Núm. 126 (2019) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1413/4016 https://abm.ojs.inecol.mx/index.php/abm/article/view/1413/4017 https://abm.ojs.inecol.mx/index.php/abm/article/view/1413/1818 Derechos de autor 2019 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Muñóz-Jiménez, Oscar López Acosta, Juan Carlos Villegas Patraca, Rafael Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico |
| title | Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico |
| title_full | Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico |
| title_fullStr | Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico |
| title_full_unstemmed | Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico |
| title_short | Diversity and vegetative structure in an anthropized landscape of La Venta, Juchitán, Oaxaca, Mexico |
| title_sort | diversity and vegetative structure in an anthropized landscape of la venta, juchitán, oaxaca, mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1413 |
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