نتایج جستجو برای: dragonflies
تعداد نتایج: 552 فیلتر نتایج به سال:
The current study aimed to investigate the variety and number of dragonflies (Phylum Arthropoda, class Insecta) in Harsul Salim Ali Lake regions. region around Lakes was examined for diversity abundance. Three families a total nine different species were identified. Libellulidae family with greatest abundance our study, followed by Gomphidae, while Coenagrionidae had lowest Gomphidae coenogrion...
A year-long study was conducted at the Kole Wetlands, a Ramsar site in central Kerala to document diversity of dragonflies and damselflies understand their seasonality. Checklist survey method used sample adult odonates 30 randomly chosen locations. total 44 species (30 14 damselflies) belonging 33 genera eight families were recorded area. Species richness showed peak post-monsoon season dip su...
Methylmercury (MeHg) levels in dragonfly larvae and water were measured over two years in aquatic systems impacted to varying degrees by sulfate releases related to iron mining activity. This study examined the impact of elevated sulfate loads on MeHg concentrations and tested the use of MeHg in dragonfly larvae as an indicator of MeHg levels in a range of aquatic systems including 16 river/str...
Rapid economic development in the past century has translated into severe pressures on species survival as a result of increasing land-use change, environmental pollution, and the spread of invasive alien species. However, though the impact of these pressures on biodiversity is substantial, it could be seriously underestimated if population declines of plants and animals lag behind contemporary...
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