Species Information

Sinployea adposita

Species Authority

(Mousson, 1870)

Species Status

Vulnerable

Organism Type

Mollusc

Taxonomy

Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Charopidae

Environment/System

terrestrial

Invasive Species Threat Summary

This Vulnerable ground-dwelling detritivorous snail is endemic to lowland moist forests on nine islands in the Lau group of Fiji. Over a large part of this snail’s range lowland forest habitat is subject to ongoing disturbance and degradation through the processes of shifting subsistence agriculture, harvesting of wood and invasion by introduced species. Pacific rats (Rattus exulans) and black rats (Rattus rattus) are established throughout the snail’s range. These invasive mammals along with domestic fowl (Gallus gallus), pigs (Sus scrofa), cattle (Bos taurus), horses (Equus caballus) and, on Aiwa, goats (Capra hircus) are likely threats to this snail though disturbance of the microhabitat of the forest floor and/or predation. Other predatory invasive species of concern present in the snail’s range are ants including forest parrot ants (Paratrechina vaga), crazy ants (Paratrechina longicornis), ghost ants (Tapinoma melanocephalum), pennant ants (Tetramorium bicarinatum) and yellow crazy ants (Anoplolepis gracilipes) (Solem 1990; Ward and Wetterer 2006).

Invasive Species Management Summary

There are no specific conservation measures in place for this snail. Continued biosecurity measures are critical to prevent the giant African snail (Achatina fulica), predatory rosy wolf snail (a href=http://www.issg.org/database/species/ecology.asp?si=92&fr=1&sts=&lang=EN>Euglandina rosea) and predatory flatworm (Platydemus manokwari) from establishing in Fiji. The giant African has the potential to displace indigenous land snails and has recently been shown to have predatory behaviour (Meyer et al. 2008). The predatory rosy wolf snail is used as a biological control against the giant African snail with resulting devastating consequences for indigenous land snail prey species (Cowie 2001, Barker and Efford 2004).

References

 Refresh   |         
CountryLocationTypeInvasive SpeciesCommon NameImpact Mechanism
FijiAiwa LevuIslandRed JunglefowlHabitat alteration (potential)
FijiAiwa LevuIslandPolynesian ratPredation (potential)
FijiAiwa LevuIslandblack ratPredation (potential)
FijiAiwa LevuIslandferal pigPredation (potential)
FijiAiwa LevuIslandCattleGrazing/Herbivory/Browsing (potential)
FijiAiwa LevuIslanddomestic goatGrazing/Herbivory/Browsing (potential)
FijiAiwa LevuIslandHorseTrampling (potential)
FijiAiwa LevuIslandred junglefowlHabitat alteration (potential)

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An Initiative of the ACP Group, funded by the European Union under the 10th EDF