First record of Gamochaeta americana as alien species from Iran

Document Type : Systematics and Biodiversity of Fungi

Authors

1 Research Assistant Prof., Department of Watershed Management, Forests and Rangelands Research, Gilan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran

2 Research Associated Prof., Research Institute of Forests and Rangeland, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

10.22092/bot.j.iran.2023.362707.1361

Abstract

During the assessment and monitoring of Hyrcanian forests, an alien species, Gamochaeta americana (Mill.) Wedd (Asteraceae) was observed and identified from the forests of Gilan province (north of Iran). The new alien plant grows in disturbance and roadside in the forest dominated or co-dominated by Quercus castaneifolia and Carpinus betulus. Gamochaeta americana is native to the new world but has been able to be introduced around the world. This paper provides a detailed description, distribution map, photographs, and diagnostic features, which will help prepare a continuous monitoring and management plan. Considering the traits of this new alien plant, which has high reproductive potential, G. americana can have a wide distribution in Iran. Therefore, further field investigations on its distribution and prioritizing, an eradication intervention for this alien weed is suggested before it spreads widely and aggressively.

Keywords

Main Subjects

Article Title [Persian]

نخستین گزارش گونه بیگانه Gamochaeta americana از ایران

Authors [Persian]

  • محمود بیدارلرد 1
  • بهنام حمزه 2
1 استادیار بخش تحقیقات جنگل‌ها، مراتع و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گیلان، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران
2 دانشیار پژوهش بخش تحقیقات گیاه‌شناسی، مؤسسه تحقیقات جنگل‌ها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی (AREEO)، تهران، ایران
Abstract [Persian]

طی پایش و ارزیابی جنگل‌های هیرکانی در استان گیلان، گونه بیگانه Gamochaeta americana (Mill.) Wedd از کاسنیان در حاشیه جاده جنگلی و بخش‌های تخریب شده پوشش بلند مازو-ممرَز (Quercus castaneifolia-Carpinus betulus) مشاهده و مورد شناسایی قرار گرفت. این گونه که برای نخستین بار از ایران گزارش می‌شود. G. americana بومی دنیای جدید است، اما توانسته در بیشتر خشکی‌های کره زمین پراکنش پیدا کند. مقاله حاضر شرح گیاه‌شناسی، نقشه پراکنش، تصاویر رنگی و صفات تشخیصی این گونه را ارایه می‌دهد. با توجه به  قابلیت تولیدمثلی، تولید بذرهای کوچک، فراوان و قابل انتشار با باد، G. americana می‌تواند به پراکنش وسیعی در ایران دست یابد. بنابراین، پیشنهاد می‌شود، حضور این گیاه در کشور به ویژه در مناطق شمالی کشور پایش شده تا قبل از پراکنش گسترده و تهاجمی، به حذف و ریشه‌کنی آن اقدام گردد.

Keywords [Persian]

  • پایش جنگل‌های هیرکانی
  • پراکنش جغرافیایی
  • کاسنیان
  • گزارش جدید
  • گیاه مهاجم

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History

  • Receive Date: 27 June 2023
  • Revise Date: 28 July 2023
  • Accept Date: 29 July 2023

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