SciELO - Scientific Electronic Library Online

 
vol.78 número4Composición y abundancia de artrópodos epígeos del Parque Nacional Llanos de Challe: impactos del ENOS de 1997 y efectos del hábitat pedológicoEstructura modular del fenotipo floral en Mimulus luteus var. luteus (Phrymaceae) índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Revista chilena de historia natural

versión impresa ISSN 0716-078X

Resumen

CEPEDA-PIZARRO, JORGE; PIZARRO-ARAYA, JAIME  y  VASQUEZ, HERNÁN. Variation in the abundance of Arthropoda from a latitudinal transect in the transitional coastal desert of Chile, with emphasis on the epigean tenebrionids. Rev. chil. hist. nat. [online]. 2005, vol.78, n.4, pp.651-663. ISSN 0716-078X.  http://dx.doi.org/10.4067/S0716-078X2005000400005.

By using pitfall traps and with special emphasis on the geographical distribution and the relationships of abundance of the Tenebrionidae assemblage, the taxonomic composition and the patterns of abundance (denso-activity) of the Arthropoda inhabiting the transect 27-30º S of the chilean transitional coastal-desert were examined. Five orders numerically dominated the Arthropoda assemblage. These were Coleoptera, Diptera, Psocoptera, Collembola and Hymenoptera. Tenebrionidae, represented by 14 genera, was the most diverse and abundant family of the epigean arthropod-fauna. Gyriosomus Guérin-Méneville, 1834 was the most specious genus in that family. Some of its species showed a narrow distribution in the study area, and may be indicators of endemisms. The species richness of Tenebrionidae did not follow the latitudinal pluviometric pattern of the transect. Carrizal Bajo, a site with xeric conditions, provided a higher number than expected, in accordance with the pattern shown by the flora, mainly geophytes and hemicryptophytes

Palabras clave : arid zones; coastal desert; biological diversity; epigean arthropods; Tenebrionidae; pitfall traps.

        · 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