In order to investigate the fauna and bio-diversity indices of syrphid flies in Arak region, samples were taken from April to November 2012. The indices were calculated using the Shannone Wiener index. Totally 21 species belonging to two subfamilies, six tribes and 13 g More
In order to investigate the fauna and bio-diversity indices of syrphid flies in Arak region, samples were taken from April to November 2012. The indices were calculated using the Shannone Wiener index. Totally 21 species belonging to two subfamilies, six tribes and 13 genera were identified. Results showed that the highest diversity was in the second week of October, fourth week of June and the first week of October. The least index was in the third week of June, August and November. Sphaerophoria rueppeli is the ecologic dominant species in Arak and neighboring regions.
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