BACKGROUND Caddisflies have significant roles in freshwater ecosystems. Morphological identification is the major impediment in accurate species identification of Hydropsychids. Mitochondrial and nuclear markers are suitable for molecular systematics of these group of arthropods. METHODS Trichopteran specimens of Lavasan District in northeastern Tehran, Iran were collected in 2012, and descri...

Abstract The aim of this review is to summarize the literature knowledge about how abiotic environmental factors and biotic interactions affect sequentially overlapping longitudinal distribution Central European species net-spinning freshwater caddisfly larvae genus Hydropsyche (Trichoptera: Hydropsychidae). In relation, several physical chemical parameters water are discussed, as well differen...

Despite their ecological importance and prevalent use as ecological indicators, the trace element physiology of aquatic insects remains poorly studied. Understanding divalent metal transport processes at the water-insect interface is important because these metals may be essential (e.g. Ca), essential and potentially toxic (e.g. Zn) or non-essential and toxic (e.g. Cd). We measured accumulation...

Non-native species represent a significant threat to indigenous biodiversity and ecosystem functioning worldwide. It is widely acknowledged that invasive crayfish species may be instrumental in modifying benthic invertebrate community structure, but there is limited knowledge regarding the temporal and spatial extent of these effects within lotic ecosystems. This study investigates the long ter...