Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices
Detection of spatial and temporal changes in vegetation cover are essential for a better understanding of the state and abundance of resources in a region. This study focuses on the evaluation of the changes and the recovery of the vegetation cover of Guadalupe Island, affected by the presence of fe...
| Principais autores: | , , , , , |
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| Formato: | Online |
| Idioma: | spa |
| Publicado em: |
Instituto de Ecología, A.C.
2021
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| Acesso em linha: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712018 |
| _version_ | 1799769391416475648 |
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| author | Ceceña-Sánchez, Martha Lizeth Eaton-González, Ricardo Solís-Cámara, Aurora Breceda Delgadillo-Rodríguez, José Luna-Mendoza, Luciana Ortega-Rubio, Alfredo |
| author_facet | Ceceña-Sánchez, Martha Lizeth Eaton-González, Ricardo Solís-Cámara, Aurora Breceda Delgadillo-Rodríguez, José Luna-Mendoza, Luciana Ortega-Rubio, Alfredo |
| author_sort | Ceceña-Sánchez, Martha Lizeth |
| collection | MYB |
| description | Detection of spatial and temporal changes in vegetation cover are essential for a better understanding of the state and abundance of resources in a region. This study focuses on the evaluation of the changes and the recovery of the vegetation cover of Guadalupe Island, affected by the presence of feral goats, eradicated in 2007. The change analysis was based on the calculation of the normalized difference vegetation index (NDVI) and soil adjusted vegetation index (SAVI), using high-resolution multispectral satellite images of the QuickBird and WorldView-2 satellites, from 2004 and 2013, corresponding to the stage before and after the eradication of goats, respectively. The change in the surface and the rate of change in the coverage of the plant communities were evaluated. According to the results obtained, the cypress, pine and palm forest cover were easily identified, with an increase in biomass for 2013. Similarly, it was found that the grassland doubled its surface coverage, and there was a decrease in bare soil for 2013. However, the NDVI had limitations in determining changes in scrub cover due to the low and medium density of vegetation for both years; therefore, the analysis of SAVI coverage was deepened, with better results and a sustained increase in post-eradication values. The changes indicate a recovery for almost all communities by 2013. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2018 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2021 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-20182022-11-29T22:29:12Z Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices Evaluación de cambios en la cobertura vegetal en Isla Guadalupe mediante índices de vegetación Ceceña-Sánchez, Martha Lizeth Eaton-González, Ricardo Solís-Cámara, Aurora Breceda Delgadillo-Rodríguez, José Luna-Mendoza, Luciana Ortega-Rubio, Alfredo erradicación imágenes satelitales sucesión ecológica tipos de vegetación conservación conservation eradication satellite images ecological succession plant communities Detection of spatial and temporal changes in vegetation cover are essential for a better understanding of the state and abundance of resources in a region. This study focuses on the evaluation of the changes and the recovery of the vegetation cover of Guadalupe Island, affected by the presence of feral goats, eradicated in 2007. The change analysis was based on the calculation of the normalized difference vegetation index (NDVI) and soil adjusted vegetation index (SAVI), using high-resolution multispectral satellite images of the QuickBird and WorldView-2 satellites, from 2004 and 2013, corresponding to the stage before and after the eradication of goats, respectively. The change in the surface and the rate of change in the coverage of the plant communities were evaluated. According to the results obtained, the cypress, pine and palm forest cover were easily identified, with an increase in biomass for 2013. Similarly, it was found that the grassland doubled its surface coverage, and there was a decrease in bare soil for 2013. However, the NDVI had limitations in determining changes in scrub cover due to the low and medium density of vegetation for both years; therefore, the analysis of SAVI coverage was deepened, with better results and a sustained increase in post-eradication values. The changes indicate a recovery for almost all communities by 2013. La detección de los cambios espaciales y temporales en la cobertura vegetal son esenciales para el mejor entendimiento del estado y abundancia de los recursos en una región. Este estudio se centra en la evaluación de los cambios y la recuperación de la cobertura de la vegetación de Isla Guadalupe, afectada por la presencia de cabras asilvestradas, erradicadas en 2007. El análisis de cambio basó en el cálculo de los índices de vegetación de diferencia normalizada (NDVI, por sus siglas en inglés) y de vegetación ajustado al suelo (SAVI, por sus siglas en inglés), utilizando imágenes satelitales multiespectrales de alta resolución de los satélites QuickBird y WorldView-2, en 2004 y 2013, correspondientes a la etapa previa y posterior a la erradicación de las cabras, respectivamente. Se evaluó el cambio en la superficie y la tasa de cambio en la cobertura de las comunidades vegetales. De acuerdo con los resultados obtenidos, se identificaron fácilmente las coberturas de bosque de ciprés, pino y palmar, con un incremento en biomasa para 2013. De manera similar, se detectó que el pastizal duplicó su cobertura en superficie, y hubo disminución del suelo desnudo para 2013. Sin embargo, el NDVI tuvo limitaciones en la determinación de cambios en la cobertura del matorral debido a la baja y mediana densidad de la vegetación para ambos años; por lo que se profundizó en el análisis de la cobertura con SAVI, con mejores resultados y un incremento sostenido de los valores posteriores a la erradicación. Los cambios indican una recuperación para casi todas las comunidades para el 2013. Instituto de Ecología, A.C. 2021-08-11 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/e2712018 10.21829/myb.2021.2712018 Madera y Bosques; Vol. 27 No. 1 (2021): Spring 2021 Madera y Bosques; Vol. 27 Núm. 1 (2021): Primavera 2021 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712018/2246 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712018/2252 10.21829/myb.2019.251366 10.21829/myb.2020.261384 Derechos de autor 2021 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Ceceña-Sánchez, Martha Lizeth Eaton-González, Ricardo Solís-Cámara, Aurora Breceda Delgadillo-Rodríguez, José Luna-Mendoza, Luciana Ortega-Rubio, Alfredo Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices |
| title | Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices |
| title_full | Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices |
| title_fullStr | Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices |
| title_full_unstemmed | Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices |
| title_short | Evaluation of changes in vegetation cover on Guadalupe Island with vegetation indices |
| title_sort | evaluation of changes in vegetation cover on guadalupe island with vegetation indices |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2712018 |
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