پراکنش دو گونه Branchipodopsis affinis و Branchinecta orientalis در منطقه بازرگان، ماکو

نوع مقاله : تنوع زیستی

نویسنده

گروه اکولوژی و ارزیابی ذخایر آبزیان، پژوهشکده مطالعات دریاچه ارومیه، دانشگاه ارومیه، صندوق پستی: 165

چکیده

آبشش پایان بزرگ از پراکنش جهانی برخوردار بوده و می ­توانند در مکان ­های دور دست روی کره زمین گسترش یابند. در ایران، همانند بسیاری ازنقاط دنیا، الگوهای تنوع زیستی، پراکنش و وضعیت حفظ منابع طبیعی این گروه جانوری کم ­تر مورد شناسایی قرار گرفته است. در همین راستا منطقه بازرگان، ماکو، در استان آذربایجان ­غربی با هدف بررسی پراکنش آبشش پایان بزرگ در بهار سال 94 مورد بررسی قرار گرفت. دو گونه آنوستراکا از راسته آبشش پایان بزرگ شامل Branchinecta orientalisو Branchipodopsis affinis از منطقه جمع ­آوری گردیدند. گونه B. orientalis قبلاً از مناطق هم­ جوار در ایران گزارش گردیده بود، اما گونه B. affinisبرای اولین ­بار گزارش شد. براساس نتایج حاصل می توان دریافت که عوامل محیطی نقش اصلی در توزیع و پراکنش و حضور گونه ­های خاص در مقیاس محلی و منطقه ­ای  را به ­عهده دارند. این گونه ­ها در منطقه مورد مطالعه با از دست دادن و تخریب زیستگاه ­ها توسط فعالیت ­های مربوط به زهکشی، کشاورزی و یا شور شدن مورد تهدید هستند. این اثرات منفی با وجود خشک­ سالی سراسری تشدید می ­شوند.

کلیدواژه‌ها

عنوان مقاله [English]

Distribution of two species of Anostraca: Branchipodopsis affinis and Branchinecta orientalis (Crustacea) in Bazargan area, Maku

نویسنده [English]

  • Behrooz Atashbar Kangarloei
Ecology and Resource Assessment Department, Urmia Lake Research Institute, Urmia University, P.O. Box: 165.
چکیده [English]

Large branchiopods have a worldwide distribution, occurring in some of the most remote places on earth. Like the global level, the patterns of diversity, distribution and conservation status of these taxa are still poorly known. In this respect, a study was conducted on distribution and status of large branchiopod crustaceans in the Bazargan area, Maku, West Azerbaijan, during the spring 2015. Two Anostracans species were collected, including Branchinecta orientalis and Branchipodopsis affinis.The B. orientalis have been reported previously in neighbouring area of Iran, however B. affinis is reported for first time. From the collected data it is easy to deduce that local ecological parameters are the main factors for the diversity and distribution of anostracan species within the local and regional scale. The Anostracan species in the studied area are threatened by the loss and degradation of their temporary aquatic habitats owing to drainage, agriculture and salinization. These negative effects have been aggravated due to the prolonged drought throughout the country

کلیدواژه‌ها [English]

  • Anostraca
  • Branchinecta orientalis
  • Branchipodopsis affinis
  • Maku
  • Bazargan

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فصلنامه محیط زیست جانوری
دوره 10، شماره 1
فروردین 1397
صفحه 313-320

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