Search results for "calanoid copepod"
showing 3 items of 3 documents
Updated checklist and distribution of the inland-water calanoid copepods (Copepoda: Calanoida) of Romania
2009
No recent studies on the distribution of calanoid copepods in Romanian inlandwaters are available. During a long-term survey aimed at large branchiopods, we collected two diaptomid species that are new for the fauna of the country, and supplemented the available data on the distribution of other calanoid species with new records. As already observed in the case of large branchiopods, the habitats of the mountain basins of the Eastern Carpathians seem to be characterized by a quite distinct species assemblage. The high calanoid species richness of Romanian inland-waters, and the need for further, more comprehensive surveys aimed at mapping the actual diversity of this order in Romania are st…
Molecular evidence for the presence of cryptic evolutionary lineages in the freshwater copepod genus Hemidiaptomus G.O. Sars, 1903 (Calanoida, Diapto…
2010
The pattern of morphological and mtDNA cytochrome b diversity of three calanoid copepod species belonging to the diaptomid genus Hemidiaptomus has been investigated with the aim of checking the reliability of the morphological characters currently used for species identification, and the possible presence of cryptic taxa. A sharply different molecular structuring has been observed in the studied species: while Hemidiaptomus amblyodon exhibits a remarkable constancy throughout the European range of its distribution area (maximum inter-populations cytochrome b divergence of 3%), observed distances between presumed conspecific lineages of Hemidiaptomus gurneyi (maximum divergence of 21.5%) and…
Ecological characterization and cladocerans, calanoid copepods and large branchiopods of temporary ponds in a Mediterranean island (Sicily, Southern …
2006
Temporary waters have been sporadically investigated in Sicily. These environments reflect the climatic features of the Mediterranean area with a winter ponding phase and a more or less prolonged dry period in summer. Their biota, especially those organisms strictly linked to aquatic environments and without any terrestrial life stage, have to exhibit special adaptations to survive the dry phases that are recurrent in such ecosystems. This study included more than 250 water bodies distributed on the whole Sicilian territory and on the small circum-Sicilian islands. This paper represents a first attempt to characterize Sicilian temporary waters from an ecological point of view and is mainly …