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espanolEl objetivo de esta investigacion fue determinar la presencia de polinizadores y el tiempo de permanencia en un huerto semillero clonal de Eucalyptus nitens. El estudio se realizo en el huerto semillero clonal Aguadas de Chumulco de propiedad de Forestal Mininco S.A., ubicado en la comuna de Mulchen, Region del Biobio. Para esto se realizo un ensayo en la temporada estival donde se determino el tipo de polinizador en E. nitens mediante la captura de insectos con malla entomologica y posterior identificacion por orden y familia mediante claves taxonomicas. Ademas, se tomaron registros de la actividad polinizadora de los insectos mas predominantes durante una hora en tres periodos correspondientes a los tratamientos: manana, medio dia y tarde con siete repeticiones, registrando el tiempo de permanencia. Los resultados obtenidos indican que A. mellifera fue el insecto predominante en las flores de E. nitens durante el periodo estival con una participacion del 91%, el 9% restante comprendio especies de los ordenes Hymenoptera y Diptera. Las visitas se concentraron durante las horas de la tarde, con mayor tiempo de permanencia A. mellifera durante la manana y Bombus terrestris durante la tarde. En conclusion, los ordenes presentes sobre E. nitens fueron Hymenoptera y Diptera, con la especie A. mellifera seguido por B. terrestris, ambos con mayores visitas durante la tarde. EnglishThe objective of this research was to determine the presence of pollinators and the time spent on a clonal seed orchard of Eucalyptus nitens. The study was conducted in clonal seed orchard Aguadas de Chumulco property Forest Mininco S.A., located in the commune of Mulchen, Bio Bio Region. For this trial was conducted in the summer where the type of pollinator E. nitens was determined by capturing insects with entomological net and subsequent identification by order and family by taxonomic keys. In addition, records pollination of the most prevalent insects were taken for 1 hour in three time periods corresponding to treatments: morning, noon and afternoon with seven replicates, recording the time spent. The results obtained indicate that A. mellifera was the predominant insect in E. nitens flowers during the summer with a share of 91%, the remaining 9% understood species of Hymenoptera and Diptera orders. The visits were concentrated during the afternoon, with more time spent A. mellifera during the morning and in the afternoon Bombus terrestris. In conclusion, the orders present on E. nitens were Hymenoptera and Diptera, with the species A. mellifera followed by B. terrestris, both with more visits in the afternoon.

Actividad polinizadora de insectos en huerto semillero clonal de Eucalyptus nitens (Deane et Maiden) Maiden, en Región del Biobío