Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico
The population structure and the patterns of spatial distribution and correlation among developmental stages of Hintonia latiflora, a species threatened in Mexico by the commercial harvest of its bark, are documented. Six plots (three in harvested sites and three in not harvested ones) of 20 m × 100...
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| Formaat: | Online |
| Taal: | spa |
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Instituto de Ecología, A.C.
2020
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| Online toegang: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2622037 |
| _version_ | 1799769392856170496 |
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| author | Vásquez-Cortez, Vicente Florencio Beltrán-Rodríguez, Leonardo Ángeles-Pérez, Gregorio Romero-Manzanares, Angélica Garcia-Moya, Edmundo Luna-Cavazos, Mario Caballero, Javier Blancas, José Martínez-Ballesté, Andrea Montoya-Reyes, Francisco |
| author_facet | Vásquez-Cortez, Vicente Florencio Beltrán-Rodríguez, Leonardo Ángeles-Pérez, Gregorio Romero-Manzanares, Angélica Garcia-Moya, Edmundo Luna-Cavazos, Mario Caballero, Javier Blancas, José Martínez-Ballesté, Andrea Montoya-Reyes, Francisco |
| author_sort | Vásquez-Cortez, Vicente Florencio |
| collection | MYB |
| description | The population structure and the patterns of spatial distribution and correlation among developmental stages of Hintonia latiflora, a species threatened in Mexico by the commercial harvest of its bark, are documented. Six plots (three in harvested sites and three in not harvested ones) of 20 m × 100 m were established for the census of all plants and they were categorized into three stages of development based on the total height and basal diameter; all individuals were located by their cartesian coordinates. The population structure was analyzed by a density histogram; whereas bias and kurtosis were used to determine the harvest effect on size categories. Univariate and bivariate spatial patterns were determined using Ripley's L(t) and L12(t) functions, respectively, and the statistical significance was 99% using Monte Carlo simulations. Density between harvested sites vs. not harvested was statistically different (p < 0.013), but the population structure was similar, with a positive asymmetric distribution pattern (S3 = 0.947 and S3 = 1.063) and leptokurtic (S4 = 2.006 and S4 = 2.400). The univariate distribution pattern in all cases was aggregated (L(t) > 0), whereas the spatial correlation in populations subject to debarking reflected a combination between independence and spatial attraction at different distances. This information provides a basis for the sustainable management of H. latiflora and represents the first study in Mexico that analyzes the debarking of a medicinal resource on its population-spatial structure. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2037 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-20372022-11-29T22:36:16Z Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico ¿El descortezamiento de un árbol medicinal impacta en su estructura poblacional-espacial? El caso de Hintonia latiflora en México Vásquez-Cortez, Vicente Florencio Beltrán-Rodríguez, Leonardo Ángeles-Pérez, Gregorio Romero-Manzanares, Angélica Garcia-Moya, Edmundo Luna-Cavazos, Mario Caballero, Javier Blancas, José Martínez-Ballesté, Andrea Montoya-Reyes, Francisco copalchi bark harvest spatial ecology Ripley´s K(t) quina non-timber forest resources copalchi cosecha de corteza ecología espacial K(t) de Ripley quina recursos forestales no maderables The population structure and the patterns of spatial distribution and correlation among developmental stages of Hintonia latiflora, a species threatened in Mexico by the commercial harvest of its bark, are documented. Six plots (three in harvested sites and three in not harvested ones) of 20 m × 100 m were established for the census of all plants and they were categorized into three stages of development based on the total height and basal diameter; all individuals were located by their cartesian coordinates. The population structure was analyzed by a density histogram; whereas bias and kurtosis were used to determine the harvest effect on size categories. Univariate and bivariate spatial patterns were determined using Ripley's L(t) and L12(t) functions, respectively, and the statistical significance was 99% using Monte Carlo simulations. Density between harvested sites vs. not harvested was statistically different (p < 0.013), but the population structure was similar, with a positive asymmetric distribution pattern (S3 = 0.947 and S3 = 1.063) and leptokurtic (S4 = 2.006 and S4 = 2.400). The univariate distribution pattern in all cases was aggregated (L(t) > 0), whereas the spatial correlation in populations subject to debarking reflected a combination between independence and spatial attraction at different distances. This information provides a basis for the sustainable management of H. latiflora and represents the first study in Mexico that analyzes the debarking of a medicinal resource on its population-spatial structure. Se documenta la estructura poblacional y el patrón de distribución y correlación espacial entre etapas de desarrollo de Hintonia latiflora, especie amenazada en México por la cosecha comercial de su corteza. Se establecieron seis unidades de muestreo (tres cosechadas y tres no cosechadas) de 20 m × 100 m para el censo de todas las plantas y se categorizaron en tres etapas de desarrollo con base en la altura total y diámetro basal; todos los individuos fueron ubicados por sus coordenadas cartesianas. La estructura poblacional se analizó mediante un histograma de densidad; , mientras que el sesgo y la curtosis se usaron para determinar el efecto del aprovechamiento sobre las categorías de tamaño. Los patrones espaciales univariantes y bivariantes se determinaron usando la función L1(t) y L12(t) de Ripley, respectivamente, y la significancia estadística fue a 99% mediante simulaciones Monte Carlo. La densidad entre sitios cosechados vs. no cosechados fue estadísticamente diferente (p < 0.013), pero la estructura poblacional fue semejante, con un patrón de distribución asimétrico positivo (S3 = 0.947 y S3 = 1.063) y leptocúrtico (S4 = 2.006 y S4 = 2.400). El patrón de distribución univariante en todos los casos fue agregado (L(t) > 0), mientras que la correlación espacial en poblaciones sujetas a descortezamiento reflejó una combinación entre independencia y atracción espacial a diferentes distancias. Esta información aporta bases para el manejo sostenible de H. latiflora y representa el primer estudio en México que analiza el impacto del descortezamiento de un recurso medicinal sobre su estructura poblacional-espacial. Instituto de Ecología, A.C. 2020-06-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf text/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2622037 10.21829/myb.2020.2622037 Madera y Bosques; Vol. 26 No. 2 (2020): Verano 2020 Madera y Bosques; Vol. 26 Núm. 2 (2020): Verano 2020 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2622037/2088 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2622037/2207 10.21829/myb.2017.232258 Derechos de autor 2020 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Vásquez-Cortez, Vicente Florencio Beltrán-Rodríguez, Leonardo Ángeles-Pérez, Gregorio Romero-Manzanares, Angélica Garcia-Moya, Edmundo Luna-Cavazos, Mario Caballero, Javier Blancas, José Martínez-Ballesté, Andrea Montoya-Reyes, Francisco Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico |
| title | Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico |
| title_full | Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico |
| title_fullStr | Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico |
| title_full_unstemmed | Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico |
| title_short | Does commercial debarking of a medicinal tree impact its population-spatial structure? The case of Hintonia latiflora in Mexico |
| title_sort | does commercial debarking of a medicinal tree impact its population-spatial structure? the case of hintonia latiflora in mexico |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2622037 |
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