Spatiotemporal Variations in Biodiversity Indices of Hover Flies (Dip.: Syrphidae) in Some Agroecosystems in Kerman Province

پژوهش های حفاظت گیاهان ایران

Article 6, Volume 29, Issue 1 - Serial Number 30, March 2015, Pages 79-87   

Document Type: Research Article

DOI: 10.22067/jpp.v29i1.31096

Authors

Z. Khosraviyan Chatroodi; H. Sadeghi Namaghi^* ; M. Hosseini

Ferdowsi University of Mashhad

Abstract

Pollination and pest control are perhaps the best-known ecological services performed by hover flies. The species diversity and their abundance have an influential impact on the ecological services provided by this family. To find out species diversity of adult flower flies associated with agroecosystems in Kerman province, a biodiversity survey using insect net and color water traps was conducted in years 2012 and 2013. Using 3 types of color water trap biodiversity indices of flower flies at 3 different sampling sites were evaluated. At each sampling site, from each color of yellow, blue and white 3 traps were placed on stands and the captured flies were collected every 2 weeks from late April until late July in 2 sequential years. The values of biodiversity indices were determined both in time and spatial scales. In this study, 29 species belonging to 2 subfamilies were collected and identified which all of them were new for the fauna of Kerman province. Among them, Paragus romanicus Stanescu is reported from Iran for the first time. A two-way ANOVA revealed that the measured values for Shannon-Weiner index had significant differences only in time. The differences in evenness values in time scale for year 2012 were not significant, but in 2013, the evenness values had significant differences in both time and location of sampling. The results showed considerable differences in efficiency of collection methods used in the present study.

Keywords

Species diversity; Flower flies; Shannon-Weiner index; Biodiversity

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