مورچه‌های (Hymenoptera: Formicidae) همیار با شپشک Paracoccus ficus در انجیرستان‌های استان فارس

نوع مقاله : مقاله کوتاه پژوهشی

نویسندگان

1 گروه گیاه‌پزشکی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز

2 دانشگاه شهید چمران اهواز

3 پژوهشگر ایستگاه تحقیقات انجیر، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی، استهبان، ایران

4 پژوهشگر بخش تحقیقات رده‌بندی حشرات، موسسه تحقیقات گیاه‌پزشکی کشور

چکیده

عسلک ماده شیرینی است که به ویژه توسط حشرات راسته جوربالان مانند شپشک­های گیاهی ترشح شده و موجب جلب برخی از گونه­های مورچه و در نتیجه ایجاد نوعی رابطه همیاری میان آنها می­گردد. در این رابطه معمولاً مورچه­ها از عسلک حشرات مکنده شیره گیاهی استفاده و در عوض، از آنها در برابر دشمنان طبیعی مانند پارازیتوئیدها و شکارگرها محافظت می­کنند. همیاری در مورچه و شپشک غالباً اختیاری است. تاکنون گزارش­هایی از رابطه همیاری بین مورچه­ها و شپشک­ها در ایران منتشر شده است. در یک بررسی در سالهای 93-1392 در کلنی­های شپشک آردالود با نام علمی Paracoccus ficus Moghaddam, 2014، مورچه­های همیار که درحال تغذیه از عسلک این شپشک بودند در شهرهای نی­ریز، استهبان و شیراز در استان فارس جمع آوری و مطالعه شد. در مجموع 6 گونه از 3 زیر خانواده از مورچه­ها به شرح زیر جمع آوری شدند.
Myrmicinae: Monomorium abeillei Andre, 1881; Tetramorium sp.; Pheidole pallidula Nylander, 1849; Crematogaster antaris Forel, 1894; Formicinae: Cataglyphis lividus Andre, 1881; Dolichoderinae: Tapinoma simrothi Krausse, 1911.
لازم است مطالعه رفتاری و اکولوژیکی روی مورچه­ها در برنامه­های مدیریت تلفیقی آفات مورد توجه قرار گیرد و در صورت وجود نقش منفی آنها در مبارزه بیولوژیک، اقدام به کنترل آنها گردد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Mutualistic Ants (Hymenoptera: Formicidae) Associated with Paracoccus ficus in Fig Orchards of Fars Province, Iran

نویسندگان [English]

  • M. Esfandiari 1
  • Sh. Mohammadi 2
  • M. Jafari 3
  • M. Moghaddam 4
1 Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3 Researcher, Fig Research Station, Fars Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (Areeo), Estahban, Iran
4 Researcher, Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection, Tehran, Iran
چکیده [English]

Introduction: Ants are the most ubiquitous insects on the earth with more than 12000 species which are classified into 21 subfamilies. Until now, more than 170 ant species have recorded in Iran. Mutualistic relationship between ants and scale insects have been reported in Iran. Such relationships between ants and insects are known as trophobiosis which is due to attraction of ants to honeydew of scale insects. Honeydew is a sugar-rich sticky liquid, secreted by aphids and some scale insects as they feed on plant sap. Ants provide protection from predators and parasitoids by building shelters around scale insect colonies. Such a relationship is mostly facultative and only a few taxa of mostly tropical or subtropical scale insects have obligate mutualism with ants. The coccoids with obligate mutualism display obvious behavioral and morphological adaptations for living with ants. Ants are also able to establish antagonistic interaction with honeydew-producing hemipterans and contribute positively to biological control by the suppression of pests.
Materials and Methods: In a study during 2013-2014, colonies of the mealybug Paracoccus ficus Moghaddam, 2014 were investigated for mutualistic ants feeding on honeydew of the mealybug in fig orchards of Neyriz, Estahban and Shiraz cities of Fars province, South Iran. Samples were collected by hand, forceps and soft brush. The specimens were preserved in 75% alcohol in small glass vials and were transferred to the laboratory. The morphological keys were used for identification. Specimens were deposited in Insect and Mite Collection of Ahvaz, at Department of Plant Protection, Shahid Chamran University of Ahvaz.
Results and Discussion: Totally, 6 species belonging to 3 subfamilies of ants were identified as follows:
Myrmicinae: Monomorium abeillei Andre, 1881; Tetramorium sp.; Pheidole pallidula Nylander, 1849; Crematogaster antaris Forel, 1894; Formicinae: Cataglyphis lividus Andre, 1881; Dolichoderinae: Tapinoma simrothi Krausse, 1911.
Among collected species, T. simrothi and P. pallidula were more frequent. T. simrothi has also recorded as most frequent mutualistic ants with aphids in Central Iran. Natural enemies exploit hemipterans which receive ant protection for their benefit. For example, some parasitoid wasps soliciting honeydew directly from aphids by antennation and mimicking ants during foraging in host patches. Researchers believe that preventing ants from colonies of Pseudococcidae scale insects is necessary for success in biological control of such pests. However, not all of ants have negative effects in biological control of pests. Predatory ants are less attracted to the honeydew and mostly feed on egg, larvae and adult insects. Moreover, some ants are important in pollination, soil improvement, and nutrient cycling.  
Conclusion: Behavioral and ecological should be carried on ants in pest management programs, and only if they have a negative influence on biological control of scale insects, then perform control measures for ants.

کلیدواژه‌ها [English]

  • ants
  • Formicidae
  • Mutualism
  • mealybug
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