Search results for "Ferrissia fragilis"
showing 3 items of 3 documents
Cryptic invasion in Southern Europe: The case of Ferrissia fragilis (Pulmonata: Ancylidae) Mediterranean populations
2011
Four populations of the North American ancylid gastropod Ferrissia fragilis have been found in Southern Italy, thus expanding the known Eurasian distribution range of this invasive gastropod to the Mediterranean area. Both mitochondrial markers used for the molecular identification of the sampled specimens (16S and COI) showed a modest to absent haplotypic diversity in the studied Ferrissia populations from Europe and Asia, and their perfect identity with some of the haplotypes observed in North American F. fragilis populations. In the light of the scarce molecular diversity observed in the whole Palaearctic area and of the growing evidences for the ongoing spreading of the species in Europ…
First molecular evidences for the synonimy of Ferrissia wautieri and F. fragilis(MOLLUSCA: PULMONATA: ANCYLIDAE
2011
Although some fossil records attributed to the freshwater limpet genus Ferrissia testify for an ancient occurrence of the genus in Europe, its presence was completely overlooked till the twentieth century, when an increasing amount of records throughout the whole continent peaked out with the description of a new species, Ferrissia wautieri, based on specimens collected in northern Italy. In the last few years, an ever increasing number of records reporting the occurrence of Ferrissia species throughout Europe have been published, but an agreement on the taxonomical identity of the European populations is currently missing. Recent molecular studies aimed at investigating the identity of Pal…
First record of the North American cryptic invader Ferrissia fragilis (Tryon, 1863) (Mollusca: Gastropoda: Planorbidae) in the Middle East
2014
Some gastropod specimens belonging to the planorbid genus Ferrissia were recently collected in Lebanon and in Iraq, where the autochthonous species Ferrissia clessiniana (Jickeli, 1882) is supposed to occur. The molecular identification of collected specimens proved that they belong to the allochthonous species Ferrissia fragilis (Tryon, 1863), the protagonist of a dramatic cryptic invasion which is of interest to the whole of Eurasia. These findings cast further doubts on the actual existence of autochthonous Ferrissia species in the Palaearctic. The need for a molecular characterisation of the topotypical population of F. clessiniana, and for a revision of the Palaearctic Ferrissia specie…