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مدلسازی مطلوبیت زیستگاه گونه سنجاقک باریکبال سبینا (Orthetrum sabina) در ایران براساس اکوریژنهای آبشیرین | ||
| فصلنامه علمی زیست شناسی جانوری تجربی | ||
| دوره 14، شماره 2 - شماره پیاپی 54، مهر 1404، صفحه 55-63 اصل مقاله (1.1 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.30473/eab.2026.77080.2027 | ||
| نویسنده | ||
| مسعود یوسفی* | ||
| دانشکده حکمرانی، دانشگاه تهران، تهران، ایران | ||
| چکیده | ||
| کشور ایران دارای تنوع زیستی قابلتوجهی از حشرات است. در این میان سنجاقکها (راسته Odonata) با بیش از 100 گونه از ناشناختهترین گروههای جانوری در ایران هستند که جمعیتهای آنها به دلایلی چون آلودگیهای محیط زیست، تغییرات اقلیمی، تغییرات کاربری اراضی و تخریب زیستگاه در حال کاهش است. بنابراین شناخت الگوی توزیع و مطلوبیت زیستگاه آنها میتواند گامی مؤثر برای شناخت مناطق با اولویت برای حفاظت آنها باشد. در مطالعه حاضر مطلوبیت زیستگاه گونه سنجاقک باریکبال سبینا (Orthetrum sabina) در ایران مدلسازی شد و مهمترین عوامل محیطی مؤثر بر توزیع آن شناسایی شد. همچنین مساحت زیستگاههای مطلوب گونه در اکوریژنهای آب شیرین محاسبه گردید. براساس مدل مطلوبیت زیستگاهی گونه نوار شمالی رشته کوه البرز و همچنین جنوبغرب ایران بیشترین گستره زیستگاههای مطلوب گونه را دارا هستند. مناطق مرکزی کشور و همچنین مناطق شرقی کمترین میزان مطلوبیت زیستگاهی را در سطح کل کشور برای گونه دارا هستند. ارتفاع، شاخص نرمالایز شده پوشش گیاهی، شاخص ردپای انسانی و بارش در گرمترین فصل سال مهمترین عوامل محیطی مؤثر بر مطلوبیت زیستگاهی گونه هستند. اکوریژنهای Upper Tigris & Euphrates با 17034 کیلومترمربع و Kura-South Caspian Drainages با 16423 کیلومترمربع بیشترین وسعت زیستگاههای مطلوب گونه را در خود جای دادهاند. بنابراین اولویت بالایی برای حفاظت گونه دارند. | ||
| کلیدواژهها | ||
| مطلوبیت زیستگاه؛ حفاظت؛ آب شیرین؛ مدلسازی؛ مکسنت | ||
| عنوان مقاله [English] | ||
| Modeling habitat suitability of the Slender Skimmer (Orthetrum sabina) in Iran based on freshwater ecoregions | ||
| نویسندگان [English] | ||
| Masoud Yousefi | ||
| Faculty of Governance, University of Tehran, Tehran, Iran | ||
| چکیده [English] | ||
| Iran has a considerable insect biodiversity. Among them, dragonflies (Order Odonata), with more than 100 species, are one of the least-studied animal groups in the country, and their populations are declining due to environmental pollution, climate change, land-use changes, and habitat destruction. Therefore, understanding their distribution patterns and habitat suitability can be an effective step in identifying priority areas for their conservation. In the present study, the habitat suitability of the narrow-winged dragonfly (Orthetrum sabina) in Iran was modeled, and the most important factors affecting its distribution were identified. Additionally, the area of suitable habitats for the species in freshwater ecoregions was determined. Based on the habitat suitability model, the northern strip of the Alborz Mountains and southwestern Iran have the largest extent of suitable habitats for the species. Central and eastern regions of the country have the lowest habitat suitability at the national scale. Elevation, normalized vegetation index, human footprint index, and precipitation during the hottest season of the year were identified as the most influential environmental factors on the species’ habitat suitability. The Upper Tigris & Euphrates and Kura–South Caspian Drainages ecoregions, with 17,034 km² and 16,423 km² of suitable habitat respectively, contain the largest areas of suitable habitats for the species, indicating high conservation priority. | ||
| کلیدواژهها [English] | ||
| Habitat suitability, conservation, freshwater, modeling, Maxent | ||
| مراجع | ||
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