IBBEA   24401
INSTITUTO DE BIODIVERSIDAD Y BIOLOGIA EXPERIMENTAL Y APLICADA
Unidad Ejecutora - UE
artículos
Título:
¿Existen especies de Navicula endémicas de ambientes de alta montaña en Argentina?
Autor/es:
SEELIGMANN, C.; MAIDANA, N. I.
Revista:
BOLETÃN DE LA SOCIEDAD ARGENTINA DE BOTáNICA
Editorial:
SOCIEDAD ARGENTINA DE BOTÁNICA
Referencias:
Lugar: Córdoba; Año: 2013 vol. 48 p. 421 - 433
ISSN:
0373-580X
Resumen:
Are
there any Navicula species (Bacillariophyta) living exclusively in high
altitude environments of Argentina? In order to analyze the geographical
distribution of 28 species of the genus Navicula Bory sensu stricto, identified
in high mountain wetlands in Argentina, we consulted the five available
catalogs, publications not included in those works, and unpublished data
collected in surveys conducted by our team. Information was gathered from more
than 190 water bodies in Argentina, Bolivia, and Chile, from which maps were
constructed using the DIVA-GIS software. These maps allowed us to visualize the
distribution of species and relate them to the altitude of the sites where they
were found. Only five taxa (18% of total identified species in high mountain
wetlands) were found exclusively in high altitude water bodies in Argentina:
Navicula atacamana, N. carvajaliana, N. parinacota, N. salinicola var.
boliviana and N. phylleptosoma. Of these species, the only one that is not
exclusively American is N. phylleptosoma, which would have a wide distribution.
While there are numerous studies carried out on the subject of diatoms of
Argentina, it is interesting to note the large area of the country that still
remains to be surveyed. Future studies may modify the knowledge we now have
regarding the distribution of species which is, apparently, restricted to high
mountain environments.