6533b830fe1ef96bd129685e
RESEARCH PRODUCT
Nouvelles données sur le genre Bragasellus (Crustacea: Isopoda: Asellidae
Odette AfonsoJean-paul HenryGuy Magniezsubject
active expansionnew speciesMediterranean climategeographygeography.geographical_feature_categorystygobiontsStructural basinzoogeographyArchaeologyBragasellustaxonomyMonophylyrecent alluvial depositsPeninsulaGenusTributaryGeneral Earth and Planetary SciencesAlluviumHydrographyIberian PeninsulaGeneral Environmental Sciencedescription
From now on, the genus Bragasellus Henry & Magniez, 1968 includes 2 oculated and 17 stygobiotic species. As a natural and monophyletic taxonomic unit, we consider it a good genus. Its original area corresponds to the north-west quarter of the Iberian Peninsula. Secondarily, this area has extended eastward, using mainly the alluvial channels of hydrographic systems (Ríos Douro + Ebro and tributaries), finally reaching the underground waters of several Mediterranean rivers. This active expansion is exclusively due to the migration of two stygobiotic sibling species: B. lagari Henry & Magniez, 1973 towards the high basin of the Río Tajo, then downstream to the basins of the Ríos Jucar and Turia (Prov. Valencia); and B. lagarioides n. sp., downstream the Río Ebro basin, towards the Río Gaya basin (Prov. Tarragona).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-01-01 | Bijdragen tot de Dierkunde |