Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae)
We reassessed the extinction risk of the species Polianthes densiflora, P. howardii, P. longiflora, P. palustris and P. platyphylla by applying the MER (method of evaluation of extinction risk of wild species for Mexico). These species are listed as rare by the International Union for Conservation o...
| Hlavní autoři: | , , |
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| Médium: | Online |
| Jazyk: | spa |
| Vydáno: |
Instituto de Ecología, A.C.
2010
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| On-line přístup: | https://abm.ojs.inecol.mx/index.php/abm/article/view/281 |
| _version_ | 1799771118972698624 |
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| author | Feria-Arroyo, Teresa Patricia Solano, Eloy García-Mendoza, Abisaí |
| author_facet | Feria-Arroyo, Teresa Patricia Solano, Eloy García-Mendoza, Abisaí |
| author_sort | Feria-Arroyo, Teresa Patricia |
| collection | ABM |
| description | We reassessed the extinction risk of the species Polianthes densiflora, P. howardii, P. longiflora, P. palustris and P. platyphylla by applying the MER (method of evaluation of extinction risk of wild species for Mexico). These species are listed as rare by the International Union for Conservation of Nature (IUCN) and are considered to be in the category of special protection according to Mexican regulation. MER criterion A (geographic distribution) was assessed with three methods: area of occupancy, extent of ocurrence, and species distribution models. Criteria B (habitat conditions) and D (impact of human activity) were examined by superimposing the human footprint map of Sanderson et al., where values range from 0 to 100. In this map, 0-10 denote pristine areas and 100 indicates that the habitat has been completely transformed. Criterion C (intrinsic biological vulnerability) was assigned based on the geophytic nature of the species. According to our findings, Polianthes densiflora and P. longiflora are in danger of extinction, while P. howardii and P. platyphylla are endangered and P. palustris is likely extinct. None of the five species concerned occur in any Natural Protected Area. We propose in situ and ex situ strategies to maintain these species as well as the development of programs of sustainable use for Polianthes longiflora and P. platyphylla. These species could be cultivated and domesticated by means of vegetative propagation. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-281 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2010 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-2812022-12-23T05:31:48Z Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) Reevaluación del riesgo de extinción de cinco especies del género Polianthes l. (Agavaceae) Feria-Arroyo, Teresa Patricia Solano, Eloy García-Mendoza, Abisaí Agavaceae conservation extinction Polianthes Agavaceae conservación extinción Polianthes We reassessed the extinction risk of the species Polianthes densiflora, P. howardii, P. longiflora, P. palustris and P. platyphylla by applying the MER (method of evaluation of extinction risk of wild species for Mexico). These species are listed as rare by the International Union for Conservation of Nature (IUCN) and are considered to be in the category of special protection according to Mexican regulation. MER criterion A (geographic distribution) was assessed with three methods: area of occupancy, extent of ocurrence, and species distribution models. Criteria B (habitat conditions) and D (impact of human activity) were examined by superimposing the human footprint map of Sanderson et al., where values range from 0 to 100. In this map, 0-10 denote pristine areas and 100 indicates that the habitat has been completely transformed. Criterion C (intrinsic biological vulnerability) was assigned based on the geophytic nature of the species. According to our findings, Polianthes densiflora and P. longiflora are in danger of extinction, while P. howardii and P. platyphylla are endangered and P. palustris is likely extinct. None of the five species concerned occur in any Natural Protected Area. We propose in situ and ex situ strategies to maintain these species as well as the development of programs of sustainable use for Polianthes longiflora and P. platyphylla. These species could be cultivated and domesticated by means of vegetative propagation. Con base en el método de evaluación del riesgo de extinción de las especies silvestres en México (MER), se redefinió el de Polianthes densiflora, P. howardii, P. longiflora, P. palustris y P. platyphylla. Estas cinco plantas se encuentran listadas en la categoría de protección especial en la Norma Oficial Mexicana y fueron catalogadas como raras por la Unión Internacional para la Conservación de la Naturaleza (IUCN). El criterio A del MER (amplitud de la distribución geográfica) se estimó mediante tres métodos: área ocupada, extensión del área ocupada y mapas obtenidos a partir de modelos de distribución. Los criterios B (condición del hábitat natural) y D (impacto humano) fueron evaluados con base en el mapa de Influencia Humana de Sanderson et al., el cual asigna valores entre 0 y 100, en donde 0-10 indica áreas conservadas y 100 la total destrucción del hábitat. El criterio C (vulnerabilidad intrínseca), se asignó en función de la naturaleza geófila de las especies. Los resultados obtenidos sugieren que Polianthes densiflora y P. howardii están en peligro de extinción, P. longiflora y P. platyphylla se encuentran amenazadas y P. palustris está probablemente extinta. Ninguna de las cinco plantas se ha registrado en alguna Área Natural Protegida. Se proponen estrategias de conservación in situ y ex situ para las especies estudiadas, así como el desarrollo de programas de uso sustentable para P. longiflora y P. platyphylla, que podrían ser cultivadas y domesticadas mediante la propagación vegetativa. Instituto de Ecología, A.C. 2010-07-01 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/281 10.21829/abm92.2010.281 Acta Botanica Mexicana; No. 92 (2010); 11-28 Acta Botanica Mexicana; Núm. 92 (2010); 11-28 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/281/424 https://abm.ojs.inecol.mx/index.php/abm/article/view/281/425 Derechos de autor 2015 Acta Botanica Mexicana |
| spellingShingle | Feria-Arroyo, Teresa Patricia Solano, Eloy García-Mendoza, Abisaí Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) |
| title | Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) |
| title_full | Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) |
| title_fullStr | Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) |
| title_full_unstemmed | Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) |
| title_short | Reassessment of the extinction risk of five species of the genus Polianthes L. (Agavaceae) |
| title_sort | reassessment of the extinction risk of five species of the genus polianthes l. (agavaceae) |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/281 |
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