Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán
The Las Joyas Field Station (LJFS) in the Sierra de Manantlán is characterized by a long history of anthropogenic disturbance. In 1988 a fence was established that delimited Las Joyas, excluding any anthropogenic disturbance. The fence divides different areas of cloud, pine and oak forests; conseque...
| Những tác giả chính: | , , , , |
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| Định dạng: | Online |
| Ngôn ngữ: | spa |
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Instituto de Ecología, A.C.
2016
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| Truy cập trực tuyến: | https://myb.ojs.inecol.mx/index.php/myb/article/view/1332 |
| _version_ | 1799769292629082112 |
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| author | Hernández Vargas, Guadalupe Sánchez Velásquez, Lázaro R. Carmona Valdovinos, Tomás F. Pineda López, Ma. del Rosario Cuevas Guzmán, Ramón |
| author_facet | Hernández Vargas, Guadalupe Sánchez Velásquez, Lázaro R. Carmona Valdovinos, Tomás F. Pineda López, Ma. del Rosario Cuevas Guzmán, Ramón |
| author_sort | Hernández Vargas, Guadalupe |
| collection | MYB |
| description | The Las Joyas Field Station (LJFS) in the Sierra de Manantlán is characterized by a long history of anthropogenic disturbance. In 1988 a fence was established that delimited Las Joyas, excluding any anthropogenic disturbance. The fence divides different areas of cloud, pine and oak forests; consequently some forest areas have been under the pressure of cattle grazing and others not. The study was carried out in these forest with two replicates, where 180 plots of 2 x 2 m were randomly: 90 plots where established outside of the LJFS and the rest inside. In these plots, tree regeneration was recorded (specie, density and tree height), and 38 species from 33 families and 35 genus were recorded. The number of juvenile trees was significantly different in the cattle excluded sites and the cattle grazing sites (in all the cases, χ2 >7.5 y p <0.001). Floristic composition was also different. Inga hintonii and Alnus jorullensis are species that were not found in those sites with cattle grazing, suggesting that such species might be extinct with cattle grazing activities. Xylosma flexuosum and Pinus douglasiana showed significant importance values in the cattle excluded sites on cloud forest and pine-oak forest, respectively. In pine forest, Pinus douglasiana and Prunus serotina showed the highest importance values in both cattle excluded sites and cattle sites. It is concluded that cattle grazing is influencing a change on the species composition and is also declining the number of juvenile trees per hectare in the three types of vegetation studied. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1332 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2016 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-13322022-11-30T01:00:46Z Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán Hernández Vargas, Guadalupe Sánchez Velásquez, Lázaro R. Carmona Valdovinos, Tomás F. Pineda López, Ma. del Rosario Cuevas Guzmán, Ramón Cloud forest pine forest oak-pine forest cattle exclusion extensive cattle-raising tree regeneration Sierra de Manantlán Bosque mesófilo de montaña bosque de pino bosque de pino-encino exclusión de ganado ganadería extensiva regeneración arbórea Sierra de Manantlán The Las Joyas Field Station (LJFS) in the Sierra de Manantlán is characterized by a long history of anthropogenic disturbance. In 1988 a fence was established that delimited Las Joyas, excluding any anthropogenic disturbance. The fence divides different areas of cloud, pine and oak forests; consequently some forest areas have been under the pressure of cattle grazing and others not. The study was carried out in these forest with two replicates, where 180 plots of 2 x 2 m were randomly: 90 plots where established outside of the LJFS and the rest inside. In these plots, tree regeneration was recorded (specie, density and tree height), and 38 species from 33 families and 35 genus were recorded. The number of juvenile trees was significantly different in the cattle excluded sites and the cattle grazing sites (in all the cases, χ2 >7.5 y p <0.001). Floristic composition was also different. Inga hintonii and Alnus jorullensis are species that were not found in those sites with cattle grazing, suggesting that such species might be extinct with cattle grazing activities. Xylosma flexuosum and Pinus douglasiana showed significant importance values in the cattle excluded sites on cloud forest and pine-oak forest, respectively. In pine forest, Pinus douglasiana and Prunus serotina showed the highest importance values in both cattle excluded sites and cattle sites. It is concluded that cattle grazing is influencing a change on the species composition and is also declining the number of juvenile trees per hectare in the three types of vegetation studied. La Estación Científica Las Joyas (ECLJ) de la Sierra de Manantlán ha tenido un fuerte historial de perturbaciones. En 1988 se instaló un cerco perimetral que delimitó la estación, quedando esta área exenta de perturbaciones antrópicas. El cercado dividió diferentes rodales de bosque mesófilo de montaña, de pino y de pinoencino, quedando estos rodales con áreas de bosque con-ganado y otras sin-ganado. El estudio se realizó en estos bosques, usando dos réplicas y colocando aleatoriamente 180 cuadros de 2x2 m, 90 cuadros fuera de la ECLJ y el resto adentro. En estos cuadros se registró la regeneración arbórea (especie, densidad y altura). Se registraron 38 especies pertenecientes a 33 familias y 35 géneros. El número de árboles jóvenes fue significativamente diferente entre los sitios sin-ganado vs con-ganado (en todos los casos χ2 >7.5 y p <0.001) y la composición florística también fue diferente. Inga hintonii y Alnus jorullensis, son especies que no se encontraron en lugares conganado, esto sugiere que son especies potenciales a extinguirse en presencia del ganado. Las especies, Xylosma flexuosum y Pinus douglasiana, presentaron valores significativos de importancia en los sitios con-ganado en el bosque mesófilo de montaña y pino-encino, respectivamente. En el bosque de pino, tanto en sitios con y sin-ganado, las especies con mayor valor de importancia fueron; Pinus douglasiana y Prunus serotina. Se concluye que el ganado bovino está ejerciendo un cambio en la composición florística y en la disminución del número de árboles jóvenes por hectárea en los tres tipos de vegetación estudiados. Instituto de Ecología, A.C. 2016-09-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/1332 10.21829/myb.2000.621332 Madera y Bosques; Vol. 6 No. 2 (2000): Otoño 2000; 13-28 Madera y Bosques; Vol. 6 Núm. 2 (2000): Otoño 2000; 13-28 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/1332/1502 Derechos de autor 2016 Madera y Bosques |
| spellingShingle | Hernández Vargas, Guadalupe Sánchez Velásquez, Lázaro R. Carmona Valdovinos, Tomás F. Pineda López, Ma. del Rosario Cuevas Guzmán, Ramón Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán |
| title | Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán |
| title_full | Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán |
| title_fullStr | Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán |
| title_full_unstemmed | Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán |
| title_short | Efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la Sierra de Manantlán |
| title_sort | efecto de la ganadería extensiva sobre la regeneración arbórea de los bosques de la sierra de manantlán |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/1332 |
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