SciELO - Scientific Electronic Library Online

 
vol.52 número3Anatomia foliar del género Smallanthus (Asteraceae, Millerieae)Determinación de la eficiencia de la micropropagación de genotipos de mandioca (Manihot esculenta, Euphorbiaceae) de interés para el Nordeste Argentino índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

Compartir


Boletín de la Sociedad Argentina de Botánica

versión On-line ISSN 1851-2372

Resumen

MUNOZ, Nadia E; DI PASQUO, Mercedes; BIGANZOLI, Fernando  y  BATISTA, William B. Análisis aeropalinológico en tres áreas de vegetación dentro del Parque Nacional El Palmar (Colón, Entre Ríos) y su relación con lavegetación local y regional. Bol. Soc. Argent. Bot. [online]. 2017, vol.52, n.3, pp.473-496. ISSN 1851-2372.

The diversity of pollen rain monthly collected during two years (2011-2013) from the atmosphere in Tauber traps located at three sites in El Palmar National Park (Entre Ríos Province) is used to characterize the source vegetation. Site 1 is a mixed area composed of grassland, palm savanna, and wetland communities, site 2 is a grassland area and site 3 is a dense palm savanna. A total of 71 pollen-grain types grouped in 43 families coming from local, regional and extra- regional areas are identified. Of them, sixteen pollen types with more than 1% of Annual Pollen Influx in at least two samples were used in this analysis. Different factors involved in quali-quantitave changes of taxa during the observation interval (e.g. pollination affinity, origin of pollen grains, canopy effect, meteorological variables) are further considered. The floral composition of each site compared to their palynoassemblages revealed that site 2 is characterized by a high abundance of Asteraeceae-Asteroideae, with an increase in the value of Vernonia (Asteraceae Cichoroidea) and Lamiaceae during the second year. Palynological composition in Sites 1 (mixed vegetation) and 3 (dense palm savanna) was dominated by Asteraeceae-Asteroideae, Myrtaceae, Blepharocalyx salicifolius, and Poaceae, with percentage fluctuations between years. Site 3 is differentiated from the other two ones by the record of Butia yatay in low frequency that showed similar percentages in both years, whereas Adiantopsis chlorophylla and Microgramma mortoniana increased during the second year.

Palabras clave : Airborne pollen diversity; Vegetation; El Palmar National Park; Entre Ríos; Argentina.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons