Achatinella concavospira

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Achatinella concavospira
Achatinella concavospira, Palikea, Oahu, Hawaii. DR Sischo.jpg
CITES Appendix I (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Achatinellidae
Genus: Achatinella
Subgenus: Achatinella
Species:
A. concavospira
Binomial name
Achatinella concavospira
Pfeiffer, 1859

Achatinella concavospira is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinellidae. This species is endemic to Hawaii.

Contents

Description

Achatinella concavospira is a species of small tree snail, they have banded shells in a variety of different colors, sharing mostly with their cousin, Achatinella mustelina. [3] Achatinellaconcavospira feeds on fungus and plant matter, and lare mostly nocturnal. [4]

Distribution and habitat

Achatinella concavospira is endemic to Hawaii. It can be found on the West Side of Oahu, [5] mostly in the Waianae Mountain Range. [3] Their range is not just limited to Oahu, they can also be found on the islands of Maui, Molokai, Lana'i, and Hawaii. [6] Populations of Achatinella concavospira are typically found at higher elevations, from 400 to 1'500 meters. [7]

Human usage & significance

Due to the varieties of color in their shells, along with the other members of their genus, Achatinella concavospira were widely sought out for by collectors. [5]

Conservation

Achatinella concavospira is currently considered as critically endangered. [3] Multiple conservation attempts have been made to protect it from a variety of external factors with much success. [5] Due to being threatened by invasive predators like the Rosy wolf snail, [7] conservationists have resorted to captive breeding, [7] as well as the creation of enclosures with no predators. [7] These conservation efforts have resulted in a significant recovery of snail populations. [7] However, captive rearing may cause a number of complications, such as lack of genetic variety within the species. [7]

References

  1. Hadfield, M.; Hadway, L. (1996). "Achatinella concavospira". IUCN Red List of Threatened Species . 1996: e.T176A13043513. doi: 10.2305/IUCN.UK.1996.RLTS.T176A13043513.en . Retrieved 15 November 2021.
  2. "Appendices | CITES". cites.org. Retrieved 14 January 2022.
  3. 1 2 3 "Achatinella". dlnr.hawaii.gov. Retrieved 3 March 2025.
  4. "O'ahu Tree Snail Facts - Photos - Earth's Endangered Creatures". www.earthsendangered.com. Retrieved 20 April 2025.
  5. 1 2 3 Holland, Brenden S; Hadfield, Michael G (1 August 2004). "Origin and diversification of the endemic Hawaiian tree snails (Achatinellidae: Achatinellinae) based on molecular evidence" . Molecular Phylogenetics and Evolution. 32 (2): 588–600. Bibcode:2004MolPE..32..588H. doi:10.1016/j.ympev.2004.01.003. ISSN   1055-7903. PMID   15223040.
  6. "Current and Future Climate Models for Ten Remaining Species of Achatinella to Inform Potential Locations of Ex Situ Predator-Free Exclosures - ProQuest". www.proquest.com. ProQuest   2869448260 . Retrieved 7 April 2025.
  7. 1 2 3 4 5 6 Price, Melissa R.; Hadfield, Michael G.; Knapp, Ingrid S. S.; Toonen, Robert J.; Forsman, Zac H. (22 April 2021). "Evolutionary genomics of endangered Hawaiian tree snails (Achatinellidae: Achatinellinae) for conservation of adaptive capacity". PeerJ. 9: e10993. doi: 10.7717/peerj.10993 . ISSN   2167-8359. PMC   8071074 . PMID   33981486.