Tyrrheniberus sardonius

Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA MOLLUSCA GASTROPODA STYLOMMATOPHORA HELICIDAE
Scientific Name: Tyrrheniberus sardonius
Species Authority: (E. von Martens, 1884)
Taxonomic Notes: Fauna Europaea lists this taxon as a separate species. According to Fiorentino et al. (2010), it is a junger synonym of T. villicus. Earlier K. L. Pfeiffer (1946) proposed that T. sardonius should be treated as a subspecies of T. villicus. According to the assessors of this species, this view should be retained. However, as the taxon is listed as a species in its own rights in Fauna Europea, it is here assessed as such.Fauna Europaea listas de este taxón como una especie separada. Según Fiorentino et al. (2010), es un sinónimo de T. villicus Junger. A principios de Pfeiffer KL (1946) propuso que T. sardonius debe ser entendido como una subespecie de T. villicus. De acuerdo con los asesores de esta especie, este punto de vista debe mantenerse. Sin embargo, como el taxón se muestra como una especie en sus propios derechos de la Fauna Europea, aquí se evalúa como tal.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered   B1ab(iii)+2ab(iii)   ver 3.1
Year Published: 2011
Assessor/s: Falkner, M., Falkner, G. & von Proschwitz, T.
Reviewer/s: Cuttelod, A. & Bilz, M.
Justification:
The (sub)species is endemic to an extremely restricted area in the eastern coastal mountains of Sardinia, i.e. a 2 km stretch of the canyon of the torrent Fuili (south east of Dorgali) where it occurs occasionally sympatric with T. ridens. It is threatenad by human activities. If considered as a subspecies of T. villicus (as recommended) it should be noted that there is a large disjunction to the area of the nominal subspecies. Following the view of Fauna Europaea, which recognises it as a species in its own rights, it is here assessed as Critically Endangered (EN) B1ab(iii)+2ab(iii).La especie (sub) es endémica de un área muy restringida en las montañas de la costa oriental de Cerdeña, es decir, un tramo de 2 km de la barranca de la Fuili torrent (sureste de Dorgali) donde se produce de vez en cuando simpátrica con T. ridens. Se threatenad por las actividades humanas. Si se considera como una subespecie de T. villicus (como se recomienda) debe tenerse en cuenta que existe una gran disyunción al área de las subespecies nominales. Tras la vista de la Fauna Europaea, que la reconoce como una especie en sus propios derechos, aquí se evalúa como Críticamente En Peligro (EN) B1ab ab (iii) +2 (iii).

Geographic Range [top]

Range Description: This species is endemic to Sardinia (Italy). It live in an extremely restricted area in the eastern coastal mountains of Sardinia, i.e. a 2 km stretch of the canyon of the torrent Fuili (south east of Dorgali).
Countries:
Native:
Italy (Sardegna)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no information available on the population size or trend of this species.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: This species is a typical rock-dweller on limestone rocks in Mediterranean vegetation types.Esta especie es un típico habitante de una roca sobre las rocas de piedra caliza en los tipos de vegetación mediterránea.
Systems: Terrestrial

Threats [top]

Major Threat(s): The major threat to this species are recreational activities like rock climbing and probably flood events.

Conservation Actions [top]

Conservation Actions: There is no conservation action in place for this species.
Citation: Falkner, M., Falkner, G. & von Proschwitz, T. 2011. Tyrrheniberus sardonius. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 05 April 2012.
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Fuente del texto http://www.iucnredlist.org/apps/redlist/details/156999/0 traducido emdiante google translator
Fuente de la imagen:http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/picture?id=3980 y http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/picture?id=3972

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