Henrigirardia wienini

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	MOLLUSCA	GASTROPODA	LITTORINIMORPHA	MOITESSIERIIDAE

Scientific Name:	Henrigirardia wienini
Species Authority:	(Girardi, 2001)
Taxonomic Notes:	This is a recently described taxon which is endemic to type locality. It has never been found alive. It was previously described in the genus Moitessieria, then a new genus Henrigirardia was created by Boeters & Falkner (2003).

Assessment Information [top]

Red List Category & Criteria:	Critically Endangered B1ab(iii) ver 3.1
Year Published:	2010
Assessor/s:	Prie, V.
Reviewer/s:	Gargominy, O., Seddon, M. & Cuttelod, A.
Contributor/s:
Justification: Henrigirardia wienini is endemic to a single cave in the Hérault valley in southern France. This locality may be threatened by lowering of the groundwater level though over abstraction of groundwater for water supplies. This species has never been found alive and could already be extinct. It is classified as Critically Endangered (Possibly Extinct).

Geographic Range [top]

Range Description:	Henrigirardia wienini is endemic to a single cave in the Hérault valley in southern France.
Countries:	Possibly extinct: France (France (mainland))
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	There is no population trend data available for this species. This species has never been found alive and could already be extinct.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species lives in subterranean waters.
Systems:	Freshwater

Threats [top]

Major Threat(s):	Subterranean habitats are vulnerable to water pollution from domestic (sewage and run-off) or agricultural (nutrient loads, herbicide and pesticides) sources. Water extraction and impacts lowering groundwater table maybe another threat if the aquifers are overexploited. Concerning the cave where H. wienini lives (if it is still living), the water is abstracted for domestic purposes. Agricultural and housing are very limited in the area, so pollution in probably not an important threat at the moment.

Major Threat(s):

Subterranean habitats are vulnerable to water pollution from domestic (sewage and run-off) or agricultural (nutrient loads, herbicide and pesticides) sources. Water extraction and impacts lowering groundwater table maybe another threat if the aquifers are overexploited. Concerning the cave where H. wienini lives (if it is still living), the water is abstracted for domestic purposes. Agricultural and housing are very limited in the area, so pollution in probably not an important threat at the moment.

Conservation Actions [top]

Conservation Actions:	Conservation actions are not in place for this species. Further survey data are required to establish if this cryptic species is still extant, and thereafter monitoring to establish any decline in habitat quality. Some species may require a review to decide whether any restrictions on drawdown would be required to maintain suitable habitat if the species is still present.

Conservation Actions:

Conservation actions are not in place for this species. Further survey data are required to establish if this cryptic species is still extant, and thereafter monitoring to establish any decline in habitat quality. Some species may require a review to decide whether any restrictions on drawdown would be required to maintain suitable habitat if the species is still present.

Citation:	Prie, V. 2010. Henrigirardia wienini. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 18 June 2013.
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