نتایج جستجو برای: libellulidae
تعداد نتایج: 170 فیلتر نتایج به سال:
Dragonfly wings resist millions of cycles of dynamic loading in their lifespan. During their operation, the wings are subjected to relatively high mechanical stresses. They further experience accidental collisions which result from the insects' daily activities, such as foraging, mating and fighting with other individuals. All these factors may lead to irreversible wing damage. Here, for the fi...
Molecular taxonomy of the Sympetrum vulgatum (Odonata: Libellulidae) complex in the West Palaearctic
راسته Odonata شامل آسیابکها و سنجاقکهای آبزی و شکارگر است که گاهی بهعنوان عوامل کنترل بیولوژیک و همچنین شاخص اکولوژیکی کیفیت اکوسیستمهای آبی مطرح میشوند. در این تحقیق طی نمونهبرداری از منطقه شمال غربی استان اصفهان، گونه Sympetrum flaveolum (Linnaeus) از شهر چادگان، جمعآوری و شناسایی شد و سپس به تأیید نگارنده سوم رسید. گونه فوق برای اولینبار از ایران گزارش میشود.
Marginal lakes are characterised by their having high biological diversity due to the presence of aquatic macrophytes in their coastal zones, providing habitats for refuge and food for animal community members. Among the fauna components associated with macrophytes, aquatic macroinvertebrates are important because they are an energy source for predators and fish. In six lakes and two different ...
Modern conservationists call for long term genetic monitoring datasets to evaluate and understand the impact of human activities on natural ecosystems and species on a global but also local scale. However, long-term monitoring datasets are still rare but in high demand to correctly identify, evaluate and respond to environmental changes. In the presented study, a population of the riverine drag...
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