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Beddomeia franklandensis

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA MOLLUSCA GASTROPODA LITTORINIMORPHA HYDROBIIDAE

Scientific Name: Beddomeia franklandensis
Species Authority: Ponder & Clark, 1993
Taxonomic Notes: It is likely that there are more Beddomeia taxa in Tasmania and the Australian state of Victoria than are currently classified (Ponder et al. 1993).

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2011
Date Assessed: 2011-07-22
Assessor(s): Clark, S.
Reviewer(s): Böhm, M. & Collen, B.
Contributor(s): Dyer, E., Soulsby, A.-M., Whitton, F., McGuinness, S., De Silva, R., Milligan, H.T., Kasthala, G., Herdson, R., Thorley, J., McMillan, K. & Collins, A.
Justification:
Beddomeia franklandensis has been assessed as Vulnerable under criterion D2 due to the single location in which the species occurs and a range of plausible threats which are present within Tasmania, lead to changes in water quality and have already had a negative effect on other snail populations. The localised distribution of this species makes it especially vulnerable to such threats, so if these do arise in the species' habitat in the future, it may be experiencing significant declines as a consequence.
History:
1996 Vulnerable
1994 Vulnerable (Groombridge 1994)

Geographic Range [top]

Range Description: This species is known from the Frankland River at Balfour, north Tasmania, Australia (Ponder 1996). Its extent of occurrence is estimated as 165 km².
Countries:
Native:
Australia (Tasmania)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no population information available for this species.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: This species inhabits rivers, and was originally collected fom a small side flow of the Frankland River along with two unnamed Beddomeia species similar to B. petterdi and B. wiseae (Ponder 1996).
Systems: Freshwater

Threats [top]

Major Threat(s): The 2000-2002 National Land and Water Resources Audit theme assessments found that freshwater snails in Tasmania were being impacted by many threat processes including: changes in water quality due to pesticides and fertilisers; increased sediment loads; loss of riparian vegetation; destruction of small seepages; gravel and rock extraction; and damming of streams especially in headwaters (ANRA 2009). However, it is unknown to what extent these threats are currently impacting upon this species. The localised distribution of this species makes it especially vulnerable to threat processes (Ponder 1996), so if these threats do arise in the future, this species may be experiencing significant declines over a relatively short time period.

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for this species, however it was previously assessed as Vulnerable D2 in 1996 (version 2.3), and is classified as Rare under Tasmania's Threatened Species Protection Act 1995 (DPIPWE 2009). In order to maintain the stability of this species’ habitat and water quality, it is advised that not only should the species’ locality be protected, but also the waters upstream, and an appropriate area-based management plan should be drawn up. Further field work is recommended to ascertain whether the distribution of this species is wider than is currently known.

Citation: Clark, S. 2011. Beddomeia franklandensis. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 23 October 2014.
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