Conservation status and strategies for the preservation of orchids in the soconusco region of southeast Mexico

Damon, Anne

doi:10.15517/lank.v0i0.11530

Cited by 4 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In fact, the promotion of oil palm in Mexico and Guatemala was articulated as part of two state programs known as “Productive reconversion” (Mexico) and “Propalma” (Guatemala) with funding of international organizations such as the World Bank and the Inter-American Development Bank (IDB), in order to take advantage of the oils from its fruits and seeds [ 36 ]. Arguing that oil palm can generate higher incomes for plantation workers´ households and reduce dependence on imported fossil fuels as well as contribute to climate change mitigation through the production of bioenergy [ 37 ]. Although oil palm biomass can be transformed into biofuels (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…The program was rooted in the rationale that the crop would generate development in some of the poorest parts of Guatemala and curb the problem of land sales [ 36 ]. These zones are recognized worldwide for their rich biodiversity, as they host a multitude of aquatic ecosystems and a vast extent of tropical forest cover [ 37 , 38 ], which are a vital habitat for many animal and plant species [ 39 ]. However, research on environmental threats related to oil palm plantations in this region remains extremely limited [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tropical wetlands and land use changes: The case of oil palm in neotropical riverine floodplains

et al. 2022

View full text Add to dashboard Cite

Oil palm plantations are expanding in Latin America due to the global demand for food and biofuels, and much of this expansion has occurred at expense of important tropical ecosystems. Nevertheless, there is limited knowledge about effects on aquatic ecosystems near to oil palm-dominated landscapes. In this study, we used Landsat 7 ETM+, Landsat 8 OLI imagery and high-resolution images in Google Earth to map the current extent of oil palm plantations and determined prior land use land cover (LULC) in the Usumacinta River Basin as a case-study site. In addition, we assess the proximity of the crop with aquatic ecosystems distributed in the Usumacinta floodplains and their potential effects. Based on our findings, the most significant change was characterized by the expansion of oil palm crop areas mainly at expenses of regional rainforest and previously intervened lands (e.g. secondary vegetation and agriculture). Although aquatic ecosystem class (e.g. rivers, lagoons and channels) decreased in surface around 3% during the study period (2001–2017), the change was not due to the expansion of oil palm lands. However, we find that more than 50% of oil palm cultivations are near (between 500 and 3000 m) to aquatic ecosystems and this could have significant environmental impacts on sediment and water quality. Oil palm crops tend to spatially concentrate in the Upper Usumacinta ecoregion (Guatemala), which is recognized as an area of important fish endemism. We argue that the basic information generated in this study is essential to have better land use decision-making in a region that is relative newcomer to oil palm boom.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tropical wetlands and land use changes: The case of oil palm in neotropical riverine floodplains

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Guarianthe skinneri (Bateman) Dressler & W. E. Higgins (Orchidaceae), commonly known as cattleya Candelaria, is naturally distributed from Mexico to Panama (Bertolini et al 2016;Damon et al 2019). Currently, wild populations of this species have been reduced by illegal collection and fragmentation of its natural habitat (Damon 2013;Coutiño-Cortés et al 2018). In Mexico, the ornamental use of this species has led to its overexploitation, so it is currently listed as threatened by the Mexican regulations NOM-059-ECOL-2010 (SEMARNAT 2010).…”

Section: Introductionmentioning

confidence: 99%

Micropropagation of Guarianthe skinneri (Bateman) Dressler et W. E. Higging in Temporary Immersion Systems

et al. 2020

View full text Add to dashboard Cite

This study's aim was to establish a protocol for the micropropagation of G. skinneri using temporary immersion system (TIS). Different concentrations of 6-Benzylaminopurine (0, 1, 2, and 3 mg L −1 ), three different systems of cultivate semi-solid (SS) and liquid media under partial (PI) and temporary immersion systems (TIS), different compositions of the inorganic salts, and the number of subcultures were evaluated. The results showed a maximum of 16.56 shoots per explant obtained through TIS, adjusting all the parameters evaluated in our study. One higher number of shoots per explant was observed in the micropropagation of G. skinneri TIS compared to SS and PI. While the use of 3 mg L −1 of BAP + MS (Murashige and Skoog) media was better than 3 mg L −1 of BAP VW (Vacint and Went) for the generation of a greater number of shoots per explant, 6.33 and 2.72, respectively. The immersion frequency of 2 min every 4 h allowed the production to be scaled to 8.54 shoots per explant. While it was necessary to perform three subcultures every 30 days, to obtain 16.56 shoots per explant, a rooting phase was not required due to the generation of adventitious roots during the different subcultures. However, a phase of elongation of the regenerated plants with ½ MS + GA3 (gibberellic acid) was needed to guarantee 100% survival in the process of acclimatization. In conclusion, this plant production system can be applied for the commercial micropropagation of this species for ornamental purposes, as well as for its reintroduction in protected natural areas.

show abstract

“…Actualmente resulta difícil verla de forma natural en los alrededores de la ciudad de Tapachula (Chiapas, México). De hecho, las poblaciones G. skinneri en el Soconusco se han reducido drásticamente por la extracción intensiva e ilegal de sus individuos, y por la disminución de su hábitat natural (Jiménez-Bautista, 2009;Damon, 2013). Por estas razones, G. skinneri está registrada como especie amenazada en la Norma Oficial Mexicana NOM-059-SE- MARNAT-2010(SEMARNAT, 2010.…”

Section: Introductionunclassified

El uso ornamental de Guarianthe skinneri (Orchidaceae), en Chiapas y Guatemala, determina parcialmente su diversidad y estructura genética

et al. 2018

View full text Add to dashboard Cite

Antecedentes y Objetivos: Guarianthe skinneri es una orquídea nativa de Chiapas, México, con distribución centroamericana, objeto de extracción y comercio ilícito; por esta razón, está catalogada como amenazada en la Norma Mexicana NOM-059-SEMARNAT-2010. En la región del Soconusco (Chiapas, México) y Guatemala, se le denomina “Candelaria”, debido a que su época de floración coincide con las fechas de la homónima virgen. En la ciudad de Tapachula (Chiapas, México), es común encontrar individuos de esta especie en los patios de domicilios particulares. El objetivo de este trabajo fue estimar la diversidad y estructura genética de G. skinneri a partir de muestras obtenidas de una población urbana de Tapachula y de su comparación con cinco poblaciones silvestres de Guatemala, para determinar el potencial de la población urbana como fuente de propágulos y averiguar si la distancia genética entre poblaciones se relaciona con la distancia geográfica que las separa.Métodos: Como marcador genético se utilizó la variación nucleotídica en secuencias de dos regiones de ADN nuclear ribosomal (ITS 1-2 y ITS 3-4). Se concatenaron las secuencias y se obtuvieron los parámetros convencionales de diversidad y estructura genética.Resultados clave: Se observaron poblaciones desde bajos hasta altos niveles de diversidad genética. Se registró un total de 38 haplotipos cuyo número entre poblaciones osciló entre 1 y 15. La diversidad haplotípica (Hd) estuvo entre 0 y 1, el número promedio de sitios polimórficos entre 0 y 165. La diversidad nucleotídica (π) y el número promedio de diferencias nucleotídicas muestran que Tapachula tuvo la mayor diversidad, seguida por poblaciones de Guatemala. La estructura genética fue moderada (Fst=0.083) y la distancia genética no se asoció con la distancia geográfica de las poblaciones.Conclusiones: Los patrones de diversidad y estructura genética entre poblaciones se atribuyen a factores antropogénicos derivados de su uso ornamental, especialmente en la ciudad de Tapachula.

show abstract

Conservation status and strategies for the preservation of orchids in the soconusco region of southeast Mexico

Cited by 4 publications

References 10 publications

Tropical wetlands and land use changes: The case of oil palm in neotropical riverine floodplains

Tropical wetlands and land use changes: The case of oil palm in neotropical riverine floodplains

Micropropagation of Guarianthe skinneri (Bateman) Dressler et W. E. Higging in Temporary Immersion Systems

El uso ornamental de Guarianthe skinneri (Orchidaceae), en Chiapas y Guatemala, determina parcialmente su diversidad y estructura genética

Contact Info

Product

Resources

About