تنوع گونه‌ای دوبالان خانوادهSyrphidae در منطقه گرمسار و شناسایی گونه غالب

نویسندگان

چکیده

مگس­های گل (Diptera:Syrphidae) یکی از مهم­ترین دشمنان طبیعی شته­ها و از گرده افشان­های مهم به شمار میﺭوند. لارو اغلب آنﻫﺎ شکارگر بوده، نقش مهمی در تعادل بیولوژیکی و کنترل طبیعی شته­ها ایفا می‌‌کنند. در بررسی­های به عمل آمده روی تنوع گونه­ای مگس­های ‌این خانواده در منطقه گرمسار در سال 1389، حشرات کامل از مناطق مختلف جمع‏آوری شدند و مورد شناسایی قرار گرفتند. سپس تنوع گونه­ای آنﻫﺎ با استفاده از شاخص­های شانون-وینر (΄H)، بریلوئن (Ĥ) و مارگالف (Dmg) مورد بررسی قرار گرفت. در مجموع، 16 گونه متعلق به 10 جنس از 2 زیر خانواده جمع­آوری گردیدند که در میان آنﻫﺎ، گونه Eupeodes lapponicus برای فون ایران جدید  می­باشد. حداکثر تنوع و فراوانی مگس­های گل در منطقه گرمسار در هفته اول خرداد  (125.1= Ĥ، 247.2= ΄H،878.22 Dmg=) ثبت گردید. همچنین گونهEpisyrphus balteatus  به عنوان گونه غالب در منطقه گرمسار شناخته شد. 

کلیدواژه‌ها


عنوان مقاله [English]

Species diversity of hover flies (Diptera: Syrphidae) and determination of the dominant species in Garmsar region

نویسندگان [English]

  • Azadeh Jabbari
  • Ali Ahadiyat
  • Rustem Hayat
چکیده [English]

Hover flies (Diptera: Syrphidae) are considered as one of the most important natural enemies of aphids, and one of the most useful pollinators of plants. Their larvae are predators of aphids and they have an important role in ensuring biological balance. In this study, which were performed in Garmsār region in 2010, these flies were collected and identified. The species diversity of these insects was measured by indexes of Shanon–Winer (H´), Brilloun (Ĥ), and Margalov (Dmg). In the faunistic studies, 16 species belonging to 10 genera and 2 sub-families, were identified, among them the species, Eupeodes lapponicus, is considered as the new record form Iran. The maximum diversity and abundance of hover flies in Garmsār were as Ĥ=1.125, H´=2.247, Dmg=22.878 at the first week of Khordād month (end of May). Also, Episyrphus balteatus is dominant speciesin Garmsar region.

کلیدواژه‌ها [English]

  • Species Diversity
  • Diptera
  • Syrphidae
  • Garmsar
  • Dominant species
  • hover files

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