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      Biosphere Reserve Information



  General Description  
El Triunfo is situated in the mountains of Sierra Madre de Chiapas, south of the Chiapas State. The terrain is generally steep and mountainous. The reserve is constituted as the limit between two of the largest hydrological regions of the state; the Pacific coast and the Grijalva-Usumacinta River. As a primary Pleistocene refuge, its location in the mountains of the Sierra Madre de Chiapas, it is considered an endemic area for different groups of plants and animals. El Triunfo is the most diverse evergreen cloud forest in Mexico, and one of the most important sites for bird migration. It is covered with evergreen seasonal forest, montane rainforest and lower montane rainforest that contain a higher proportion of endemic plants. A number of threatened mammalian species can be found in the reserve, namely Geoffroy’s spider monkey, margay, jaguar and puma. Avifauna includes horned guan, resplendent quetzal, azure-ramped tanager and great curassau. The population is estimated to 229,280 (1999) living in the buffer and transition area, and a floating population that migrates from Guatemala to work on the coffee plantations. The main activities are agriculture, primarily based on coffee cultivation, maize, ‘camedora’ palm collection, trade, construction and cattle rising. Coffee plantations have become an important issue, influencing greatly the economical, social and political lives of local peoples. However, poverty and marginalization along with illicit activities such as hunting of threatened species and collection of non-timber forest species, worsen the socio-political conditions. The principal goal of the biosphere reserve is to go further than classic local consultation in scientific and technical propositions. To attain effective sustainable development, local communities search to be involved in the biosphere reserve’s territorial management and implementation.
  Major ecosystem type   Tropical humid forest
  Major habitats & land cover types   Evergreen tropical humid forest; mountain rainforest; tropical deciduous rainforest; evergreen cloud scrub; evergreen cloud forest; pine-oak forest
  Location   15°09' to 15°57'N; 92°34' to 93°12'W
  Area (hectares)    
  Total   119,177
  Core area(s)   25,718.875
  Buffer zone(s)   93,458.415
  Transition area(s) when given  
  Altitude (metres above sea level)   +450 to +2,550
  Year designated   1993
  Administrative authorities   Comisión Nacional de Areas Naturales Protegidas (CONANP); Secretaría de Medio Ambiente, Recursos Naturales y Pesca (SEMARNAP) Camino al Ajusco 200, 3er piso, Jardines en la Montaña, Tlalpan, C.P. 14210, México, D.F. Tel: (961) 614 03 78 Fax: (961) 614 07 79 E-mail:;

Last updated: 18/09/2007

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