Species Information

Trochomorpha corallina

Species Authority

Mousson, 1870

Species Status

Near Threatened

Organism Type

Mollusc

Taxonomy

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

Environment/System

terrestrial

Invasive Species Threat Summary

This Near Threatened arboreal forest snail is endemic to thirteen islands in the Lau group of Fiji. It is experiencing a decline in the extent and quality of its habitat and is threatened by the destruction and modification of the native lowland forests. Many of the islands from which the species has been recorded retain relatively intact habitat whilst on others (especially Lakeba, Oneata and Vanua Balavu) there has been much habitat loss and degradation. Lowland forests on human-occupied islands are subject to ongoing loss to agriculture, settlement and tourism developments and degradation through shifting subsistence agriculture, harvesting of wood, invasion by introduced species.

Invasive Species Management Summary

Surveys to determine the current distribution and population status of this snail are recommended and research is needed to explore options for indigenous snail site/habitat protection. 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

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