Biology:Atlantica calathoides
| Atlantica calathoides | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Stylommatophora |
| Family: | Gastrodontidae |
| Genus: | Atlantica |
| Species: | A. calathoides
|
| Binomial name | |
| Atlantica calathoides (R. T. Lowe, 1863)
| |
| Synonyms[1] | |
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Atlantica calathoides is a species of land snail native to Madeira, Portugal.
Historical Account
The species was first described by Richard Thomas Lowe in 1863 as Helix calathoides.[2]
In 2008, reserve warden Isamberto Silva and biologist Dinarte Teixeira rediscovered living populations of Atlantica calathoides on the island Deserta Grande.[3][4] Specimens have since been found on two sites on Deserta Grande Island and Quaternary fossils have been found on the island Bugio.[3]
Ecology
Habitat
Atlantica calathoides are found in deep ravines on Deserta Grande Island.[3] They can typically be seen at the base of common bracken or found underneath rocks.[3]
Threats
The main cause of population decline is predation by mice and ground beetles.[5] Habitat degradation from goat grazing, droughts and landslides has also threatened the species.[5]
Conservation
Atlantica calathoides were one of the target species of the LIFE Recover Natura Project which ran from October 2013 to March 2019.[6] It carried out a population study, monitoring scheme and species ecology study.[5] During the project, new populations of Atlantica calathoides were identified and the species' conservation status was evaluated.[7]Artificial shelters to assist in conservation were considered but it was concluded that this would not assist in conservation due to Atlantica calathoides spending extended periods of time underground.[8]
In recent decades, there has been a continued control programme for goat populations which should assist with habitat restoration.[5] Authorities in the area introduced the programme in the 1990s and have also eradicated other introduced species such as rabbits.[9]
References
- ↑ 1.0 1.1 Teixeira, D. 2017. Atlantica calathoides. The IUCN Red List of Threatened Species 2017: e.T107353425A107353451. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T107353425A107353451.en
- ↑ Cameron, Robert A. D.; Holyoak, G. A.; Holyoak, David; Yanes, Yurena; Alonso, M. R.; Ibanez, Miguel (May 2013). "Shell characters and genital anatomy of Atlantica calathoides and transfer of the genus Atlantica from Discidae to Gastrodontidae (Gastropoda: Pulmonata)". Journal of Conchology 41 (3): 287.
- ↑ 3.0 3.1 3.2 3.3 IUCN (2016-11-29) (in en). Atlantica calathoides: Teixeira, D.: The IUCN Red List of Threatened Species 2017: e.T107353425A107353451 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2017-3.rlts.t107353425a107353451.en. http://www.iucnredlist.org/details/107353425/0.
- ↑ Cameron, Robert A D; Dinarte, Teixeira (March 2013). "One up, one down, all change: The status and identity of two Critically Endangered Madeiran land snails". Tentacle 21: 20-21.
- ↑ 5.0 5.1 5.2 5.3 IUCN (2016-11-29) (in en). Atlantica calathoides: Teixeira, D.: The IUCN Red List of Threatened Species 2017: e.T107353425A107353451 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2017-3.rlts.t107353425a107353451.en. http://www.iucnredlist.org/details/107353425/0.
- ↑ Layman’s Report of the Project ‘Recovery of land species and habitats of the sites of the Natura 2000 Network of Ponta de São Lourenço and Ilhas Desertas'
- ↑ (in pt) Resultados do Projecto LIFE Recover Natura. Portugal. 2020. pp. 32-33. https://liferecovernatura.madeira.gov.pt/.
- ↑ (in pt) Resultados do Projecto LIFE Recover Natura. Portugal. 2020. pp. 50. https://liferecovernatura.madeira.gov.pt/.
- ↑ Cameron, Robert A. D.; Cook, Laurence M.; Goodfriend, Glenn A. (1999). "Land snail faunas of the Deserta Islands, Madeiran archipelago, past and present". Journal of Conchology 36 (6): 3.
Wikidata ☰ Q81850048 entry
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