Helechos y afines del santuario de fauna y flora de iguaque, boyacá. colombia
Autores
Barrera T., Eduardo
Acosta H., Nelly
Murillo, María Teresa
Director
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EspañolFecha de publicación
1996
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Se reconocen 31 géneros y 62 especies de helechos y afines en tres transectos ubicados en los sectores Carrizal, Chaina y San Pedro. En los sectores Carrizal y San Pedro, los transectos ascienden por los flancos occidental y oriental de la parte septentrional del santuario hasta la laguna de Iguaque. Los géneros mejor representados son Polypodium con 11 especies, Aspleuinum, Elaphoglossum y Blechnum con 5 especies. Se encontraron géneros caracteristicos del páramo: lamesonia, lycopodium, huperzia, Blechnum e Isoetes compara la distribución y el número de especies en los tres sectores: el mayor número de especies se observa en el sector Carrizal; en el sector San Pedro es menor pero se detecta predominio de las especies Pleridium aquiliun (L.) lycopodium thyoides Willd. y Cheilanthes lendigera (Cav.) Sw. El sector Chaina corresponde a una zona de transición entre los bosques montano bajos y se destaca por el elevado número de especies debido a la ubicación en el cañón del río Iguaque o Cane. Los taxa se concentran altitudinalmente entre el bosque andino y el subpáramo. La distribución altitudinal de las especies parece limitada y corresponde a habitat específicos.
The altitudinal distribution of 31 genera and 62 species of fems and allied plants has been studied along three transects in the Carrizal, Chaina and San Pedro sections. The transects of the Carrizal and San Pedro sections rise to San Pedrode Iguaque lagoon trough westem and eastem slopes of the septentrional zone of Fauna and nora Sanctuary of Iguaque. The genera richest in species are polydium with 11 species, Asplenium, Elaphoglossum y Blechnum with 5 species. The typical genera of paramo are lamesonia, Lycopodium, Huperzia, Blechnum and Isoetes The distribution and number of species was compared in three sections: species number is highest in Carrizal section; in San Pedro section the number is low but there are sorne predominant species: Pleridium sguilinum (L.) Kuhn, lycopodium thyodies Willd. and Cheílanthes lendigera (Cav.) Sw. Of vegetation of Chaina section is a transition of montane low forests. of higher number in this section is probably due to location in the Iguaque or Cane bed river. Of taxa are concentrated between Andean forest and subparamo zones. Fem species seem limited in their distribution and are considered specíficin their ecological requirementa.
The altitudinal distribution of 31 genera and 62 species of fems and allied plants has been studied along three transects in the Carrizal, Chaina and San Pedro sections. The transects of the Carrizal and San Pedro sections rise to San Pedrode Iguaque lagoon trough westem and eastem slopes of the septentrional zone of Fauna and nora Sanctuary of Iguaque. The genera richest in species are polydium with 11 species, Asplenium, Elaphoglossum y Blechnum with 5 species. The typical genera of paramo are lamesonia, Lycopodium, Huperzia, Blechnum and Isoetes The distribution and number of species was compared in three sections: species number is highest in Carrizal section; in San Pedro section the number is low but there are sorne predominant species: Pleridium sguilinum (L.) Kuhn, lycopodium thyodies Willd. and Cheílanthes lendigera (Cav.) Sw. Of vegetation of Chaina section is a transition of montane low forests. of higher number in this section is probably due to location in the Iguaque or Cane bed river. Of taxa are concentrated between Andean forest and subparamo zones. Fem species seem limited in their distribution and are considered specíficin their ecological requirementa.