Helechos y licofitas del Área Natural Protegida “Paisaje Protegido Cerro Mbororé” (Misiones, Argentina)
; Yañez, Agustina
; Castía, Federico Javier Otros responsables
Fecha
09/2024
Editorial
Sociedad Argentina de Botánica
Revista
Boletín de la Sociedad Argentina de Botánica
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Institución organizadora
ISSN
0373-580X
eISSN
1851-2372
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Español
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Resumen
Introducción y objetivos: En este trabajo se relevan los helechos y licofitas del “Paisaje Protegido Cerro Mbororé”, Oberá, Misiones, Argentina. Se discute la importancia fitogeográfica del área, ya que se encuentra situada en la transición entre el Distrito de las Selvas Mixtas y el Distrito de los Campos, del Dominio Amazónico en el país. M&M: Los materiales coleccionados fueron herborizados y depositados en los herbarios LP, BA y SLP. Para la identificación de especies se utilizó la Flora Argentina y floras locales. Las fotografías tomadas en el campo fueron cargadas en la plataforma iNarulatist. Se mencionan en este apartado los ejemplares de herbario estudiados. Resultados: El área de estudio presenta 32 especies de helechos (nueve familias) y una especie de licofitas. La familia más diversa es Pteridaceae, con seis géneros y 13 especies, seguida por Polypodiaceae, con tres géneros y cuatro especies. Se identifican cuatro ambientes bien definidos y con asociaciones de especies particulares: la cima del cerro, la laguna de altura, la ladera norte y la ladera sur. Conclusiones: La heterogeneidad ambiental, producto del relieve escarpado, y la posición transicional del área, generan una comunidad compleja de helechos y licofitas con un importante valor ambiental, la cual debe ser protegida del peligro del avance de la frontera agropecuaria y la explotación forestal.
Background and aims: In this work, the ferns and lycophytes of the Paisaje Protegido Cerro Mbororé, Oberá, Misiones, Argentina are studied. The phytogeographic importance of the area is discussed, since it is located in the transition between the District of the Mixed Forests and the District of the Fields, in the Amazonian Domain from the country. M&M: The collected materials were deposited in the LP, BA, and SLP herbaria. For the identification of species, the Flora Argentina and local floras were used. The photographs taken in the field were uploaded to the iNarulatist platform. The herbarium specimens studied are mentioned in this section. Results: The study area has 32 species of ferns (nine families) and one species of lycophytes. The most diverse family is Pteridaceae, with six genera and 13 species, followed by Polypodiaceae, with three genera and four species. Four well-defined environments with particular associations of species are identified: the top of the hill, the high-altitude lagoon, the north slope and the south slope. Conclusions: The environmental heterogeneity, product of the steep relief, and the transitional position of the area, generate a complex community of ferns and lycophytes with an important environmental value, which must be protected from the danger of the advance of the agricultural frontier and forestry exploitation.
Background and aims: In this work, the ferns and lycophytes of the Paisaje Protegido Cerro Mbororé, Oberá, Misiones, Argentina are studied. The phytogeographic importance of the area is discussed, since it is located in the transition between the District of the Mixed Forests and the District of the Fields, in the Amazonian Domain from the country. M&M: The collected materials were deposited in the LP, BA, and SLP herbaria. For the identification of species, the Flora Argentina and local floras were used. The photographs taken in the field were uploaded to the iNarulatist platform. The herbarium specimens studied are mentioned in this section. Results: The study area has 32 species of ferns (nine families) and one species of lycophytes. The most diverse family is Pteridaceae, with six genera and 13 species, followed by Polypodiaceae, with three genera and four species. Four well-defined environments with particular associations of species are identified: the top of the hill, the high-altitude lagoon, the north slope and the south slope. Conclusions: The environmental heterogeneity, product of the steep relief, and the transitional position of the area, generate a complex community of ferns and lycophytes with an important environmental value, which must be protected from the danger of the advance of the agricultural frontier and forestry exploitation.
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