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رقابت و همپوشانی جمعیت شب پره های Ephestia kuehniella و Plodia interpunctella در شرایط تغذیه از میوه خرما | ||
| دانش گیاهپزشکی ایران | ||
| دوره 51، شماره 2، دی 1399، صفحه 251-263 اصل مقاله (847.11 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijpps.2020.300248.1006936 | ||
| نویسنده | ||
| مسعود لطیفیان* | ||
| سازمان تحقیقات، آموزش و ترویج کشاورزی، موسسه تحقیقات علوم باغبانی | ||
| چکیده | ||
| گونه‌‌های شب پره Plodia interpunctella و Ephestia kuehniella در انبارهای مواد غذایی از جمله خرما یافت می‌شوند. هدف از این پژوهش تعیین میزان رقابت و همپوشانی شب‌پره‌های آفت انباری خرما بود. برای انجام آزمایش‌ها سه جعبه‌ی شیشه‌ای با ابعاد 40×50×50 سانتی‌متر طراحی شد. روی بدنه جعبه‌ها 9 سوراخ تعبیه شده که برای نمونه برداری ها مورد استفاده قرار گرفت. تغییرات جمعیت دو گونه در شرایط تغذیه از خرما در طول 24 هفته و با فواصل زمانی هر هفته یکبار بررسی شد. از مدل‌های سری زمانی برای مطالعه جمعیت دوگونه و معادله رشد لجستیک برای برآورد اثر تراکم یک گونه بر گونه دیگر مورد استفاده قرار گرفت. نتایج نشان داد که ظرفیت محیطی E. kuehniella و P. interpunctella به ترتیب معادل 2430 و 1610 و نرخ رشد جمعیت (r) به ترتیب معادل 2/1 و 3/1 بود. از هفته اول تا سوم حد تعادل جمعیت دو گونه نزدیک به هم بود. در هفته چهارم منجر به کاهش جمعیت شب پره E. kuehniella شد. بالاترین حد تعادل جمعیت دو گونه در هفته سیزدهم بود. پتانسیل آشیان بوم‌شناختی قابل بهره برداری (eij) و مقدار آشیان بوم‌شناختی بهره برداری نشده توسط هر گونه (zij) برای E. kuehniella از هفته هشتم تا انتهای دوره نمونه‌برداری بالاتر از P. interpunctella بود. میزان همپوشانی آشیان‌های بوم شناختی دو گونه(D) بین 1-97/0 متغیر بود که نشان دهنده همپوشانی کامل فعالیت زمانی جمعیت دو گونه شب‌پره بود. نتایج این پژوهش در کنار سایر مطالعات بوم‌شناسی جامعه حشرات آفات انباری خرما می‌تواند مورد استفاده متخصصین مدیریت تلفیقی آفات قرارگیرد. | ||
| کلیدواژه‌ها | ||
| حشرات انباری؛ رقابت زیستی؛ توزیع زمانی؛ همپوشانی؛ آشیان اکولوژیکی | ||
| عنوان مقاله [English] | ||
| Competition and Overlap of Ephestia kuehniella and Plodia interpunctella Moth Populations in Date fruits nutrition condition | ||
| نویسندگان [English] | ||
| Masoud Latifian | ||
| Agricultural Research, Extension and education organization, Horticulture science Research Institute | ||
| چکیده [English] | ||
| Plodia interpunctella and Ephestia kuehniella are found in food storages, including dates palm. The aim of this study was to determine the competition and overlap of date moths. Three glass boxes with dimensions of 50 × 50 × 40 cm were designed for the experiments. There were 9 holes on the boxes body for sampling. Population changes of the two species were monitored in the storage conditions during 24 weeks. Time series models were used to study species populations and logistic growth model to estimate the effect of density of one species on another. The results showed that the environmental capacity of E. kuehniella and P. interpunctella were 2430 and 1610 and the population growth rate (r) were 1.2 and 1.3, respectively. The species population balances were close together from first to third week. The population of E. kuehniella decreased at the fourth week. The highest population balance of the two species was in the 13th week the potential of exploitable ecological nests (eij) and the number of ecological nests exploited by any species (zij) for E. kuehniella was higher than P. interpunctella from 8th week until the end of the sampling period. The overlap of ecological nests of the two species (D) ranged from 0.97 to 0.97, indicating complete overlap of temporal activity of the two moth species populations on date palm feeding conditions. The results of this study, along with other ecological studies of the date stored pest insect community, can be used by integrated pest management experts. | ||
| کلیدواژه‌ها [English] | ||
| Storage insects, Biological competition, Temporal distribution, Overlap, Ecological niche | ||
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