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Gayana (Concepción)

versión On-line ISSN 0717-6538

Resumen

BERRIOS, Patricia. ARTHROPODS ASSOCIATED WITH SOIL OF FOREST OF NOTHOFAGUS OBLIQUA (MIRB.) OERSTED (FAGACEA) IN THE COASTAL AREA OF THE VIII REGION . Gayana (Concepc.) [online]. 2002, vol.66, n.1, pp. 1-6. ISSN 0717-6538.  http://dx.doi.org/10.4067/S0717-65382002000100001.

ABSTRACT The diversity of arthropods of soil, associated to N. obliqua was characterized in the "Fundo Universidad de Concepción". For this they were carried out dead leaves samplings in an area with prevalence of N. obliqua, during the winter and spring seasons (June to November of 1997). The wealth was determined the specific richness and relative abundance of each one of the groups that conformed this community. The results show that the Oribatida and Gamasida mites, as the Collembola, were the groups that presented the major relative abundances. On the other hand, the diversity and the eveness diminished gradually from the first month of sampling (H' = 0.597 and J' = 0.574) toward the end of the study, in the spring season (H' = 0.404 and J' = 0.353). This tendency was due to the notable increase of the dominant groups in the last months. The increment of the abundances of these groups is highly correlated with the monthly increment in the dead leaves accumulations (r = 0.935; p < 0.005)

Palabras llave : Arthropods; diversity; dead leaves; Nothofagus obliqua.

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