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Tropidophora pulchra 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_onStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Littorinimorpha Pomatiidae

Scientific Name: Tropidophora pulchra (Gray, 1834)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2009
Date Assessed: 2006-01-11
Annotations:
Needs updating
Assessor(s): Gerlach, J.
Reviewer(s): Miller, R.M., Pollock, C.M. & Seddon, M.B.
Justification:
This species can be considered LC because it is a widespread species within its restricted range, with an AOO greater than 50 km² and no significant threats.

Geographic Range [top]

Range Description:Endemic to the Seychelles islands of Mahé, Silhouette, Praslin, Curieuse (extinct), La Digue (extinct), Felicite and Fregate. Extent of occurrence is estimated to measure 600 km² and area of occupancy (AOO) is 58 km².
Countries occurrence:
Native:
Seychelles (Seychelles (main island group))
Additional data:
Estimated area of occupancy (AOO) - km2:58Continuing decline in area of occupancy (AOO):No
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:600
Continuing decline in extent of occurrence (EOO):NoExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:No
Extreme fluctuations in the number of locations:No
Upper elevation limit (metres):700
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:In 2005, the population was estimated at 149,200 individuals.
Current Population Trend:Stable
Additional data:
Number of mature individuals:149200Continuing decline of mature individuals:No
Extreme fluctuations:NoPopulation severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:An arboreal species, this snail is found in tropical forest habitats from sea level to 700 m.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Threats [top]

Major Threat(s): Threatened by habitat degradation: habitat loss historically, and now degradation by invasive plant species (e.g., Cinnamomum verum), though the effect of invasive species on the populations are negligible to date.

Conservation Actions [top]

Conservation Actions: Present in Morne Seychellois and Praslin National Parks. Maintenance and restoration of the species' habitat, as well as establishment of additional protected areas, are needed. Research into the species' life history and ecology would be beneficial.

Citation: Gerlach, J. 2009. Tropidophora pulchra. The IUCN Red List of Threatened Species 2009: e.T168100A6449133. . Downloaded on 24 September 2017.
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