فراوانی و تغییرات جمعیت مگس‌های (Syrphidae (Diptera: Brachycera در ارتفاعات مختلف شهرستان ساری

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری دانشگاه محقق اردبیلی، ایران

2 دانشیار، دانشکده علوم کشاورزی دانشگاه محقق اردبیلی، اردبیل، ایران

3 استادیار، بخش تحقیقات رده بندی حشرات، موسسه تحقیقات گیاه پزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران ، ایران

4 استادیار، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی، ساری، ایران

چکیده

      در این مطالعه پراکنش و فراوانی مگس‌های Syrphidae در چهار ایستگاه در منطقه جنگلی ساری کیاسر شامل عالیکلا، هفت خال، علمدارده، پهنه‌کلا و یک ایستگاه در منطقه دشت ناز (به‌ترتیب با ارتفاع 1640، 855، 396، 175 و 20 متر از سطح دریا) در استان مازندران بررسی شدند. جمع‌آوری حشرات در هر ایستگاه با استفاده از تله‌های مالیز، پنجره‌ای، ظرفی زردرنگ و ظرفی سفیدرنگ انجام شد. جمع‌آوری حشرات هر دو هفته یکبار و در فصل‌های بهار و تابستان انجام شد. از میان گونه‌های جمع‌آوری‌شده گونه‌های(.Melanostoma mellinum (L و (.Sphaerophoria scripta (L به‌ترتیب با 54/43 و 39/33 درصد بیشترین فراوانی را در مناطق مورد مطالعه داشتند. همچنین، نتایج نشان داد که فراوانی گونه‌ها در مناطق مذکور متفاوت بود. فراوانی گونه (.Melanostoma mellinum (L در ارتفاعات1640 و 855 متر، گونه (.Sphaerophoria scripta (L در ارتفاع 855 متر، گونه (Sphaerophoria rueppelli (Wiedemann در ارتفاع 20 متر، گونه (Eupeodes corollae (Fabricius در ارتفاع 855 متر و گونه (Merodon avidus (Rossi در ارتفاع 1640 متر بیشتر از سایر گونه‌ها بودند. نتایج نشان داد که اوج تراکم جمعیت مگس‌های Syrphidae در منطقه موردمطالعه در خردادماه بود. 

کلیدواژه‌ها

عنوان مقاله [English]

Abundance and population fluctuations of syrphid flies (Diptera: Syrphidae) in altitudinal gradient in Sari, Iran

نویسندگان [English]

  • M.R. Babaei 1
  • A.A. Fathi 2
  • E. Gilasian 3
  • H. Barimani Varandi4 4
چکیده [English]

This study was carried out to evaluate distribution and abundance of Syrphid flies population in Sari-Kiasar forest Region. Data collection was done in five stations including Alikola (1640 metres above sea level, m.a.s.l.), Haftkhal (855 m.a.s.l.), Alamdardeh (396 m.a.s.l.), Pahnekola (175 m.a.s.l.) and one station in Dasht-e-naz region (20 m.a.s.l.). The samples of syrphid flies were collected by set of Malaise trap, window trap, yellow pan trap and white pan trap in each station. The data collection was done every two weeks during spring and summer. Seven species were identified in the study site. The most abundant species was Melanostomamellinum (L.) followed by Sphaerophoriascripta (L.) which was 43.54% and 33.39%, respectively. Results showed that altitudinal gradient affected the species abundance. For example M. mellinum was the most abundant in habitat with altitude 1640m and 855m, S. scripta was the most abundant species in habitat with altitude of 855m, Sphaerophoriarueppellii (Wiedemann) was the most abundant in habitat with altitude 20m, Eupeodescorollae (Fabricius) was the most abundant species in habitat with altitude of 855m and Merodonavidus (Rossi) was the most abundant species in habitat with altitude of 1640m. Also results showed that peak of maximum abundance in studied sites occurred in May.

کلیدواژه‌ها [English]

  • Syrphid fly
  • Abundance
  • population fluctuations
  • Forest region
  • Mazandaran

مراجع

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تحقیقات حمایت و حفاظت جنگلها و مراتع ایران
دوره 14، شماره 1
دی 1395
صفحه 12-21

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سابقه مقاله

  • تاریخ دریافت: 28 تیر 1394
  • تاریخ بازنگری: 14 دی 1395
  • تاریخ پذیرش: 14 مهر 1395

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