Bulimulus indefatigabilis
| Kingdom |
Phylum |
Class |
Order |
Family |
| ANIMALIA |
MOLLUSCA |
GASTROPODA |
STYLOMMATOPHORA |
ORTHALICIDAE |
| Scientific Name: |
Bulimulus indefatigabilis |
| Species Authority: |
(Dall, 1900) |
| Taxonomic Notes: |
Synonym = Naesiotus indefatigabilis. |
Assessment Information
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| Red List Category & Criteria: |
Critically Endangered
B2ab(iii)c(ii,iii,iv)
ver 3.1
|
| Year Assessed: |
2003 |
| Assessor/s: |
Parent, C. |
| Reviewer/s: |
Coppois, G. & Seddon, M.B. (Mollusc Red List Authority) |
Justification:
Bulimulus indefatigabilis is endemic to Santiago Island in the Galápagos Islands. It has a very restricted range, probably less than 3 km². Shells of this species are found on a much greater range suggesting that, in the past, this species inhabited a larger range on the island. The major threat on Santiago Island is introduced species: there is a direct threat to the species from little fire ants (Wasmannia auropunctata), and habitat destruction by feral goats and donkeys. The size of the population is estimated at probably no more than 500. There may also be extreme fluctuations in habitat and population size due to El Niño effects, but this is not well documented.
|
Geographic Range
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| Range Description: |
Bulimulus indefatigabilis is known from one population on the Galápagos Island of Santiago (585 km²). Its current range is probably less than 3 km².
|
| Countries: |
Native:
Ecuador (Galápagos)
|
Population
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| Population: |
Known from only one population.
|
| Population Trend: |
Unknown
|
Habitat and Ecology
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| Habitat and Ecology: |
Arid zone; found at base of trees, under lava rocks on Santiago Island.
|
| Systems: |
Terrestrial |
| Major Threat(s): |
Introduced ants (Wasmannia auropuctata), destruction and/or alteration of habitat by feral goats. Habitat and population size may also be affected by El Niño, but his is not well documented.
|
