Lissachatina fulica

Lissachatina fulica
Lissachatina fulica in Bali, Indonesia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Suborder: Achatinina
Superfamily: Achatinoidea
Family: Achatinidae
Genus: Lissachatina
Species:
L. fulica
Binomial name
Lissachatina fulica
(Férussac, 1821)
Synonyms
  • Achatina (Lissachatina) fulica (Férussac, 1821)· accepted, alternate representation
  • Achatina fulica (Férussac, 1821)
  • Achatina (Lissachatina) fulica fulica Bowdich, 1822 (unaccepted combination)
  • Achatina acuta Lamarck, 1822 (junior synonym)
  • Achatina couroupa Lesson, 1831 (junior synonym)
  • Achatina fasciata Deshayes, 1831 (junior synonym)
  • Achatina fulica Bowdich, 1822 (superseded combination)
  • Achatina fulva Deshayes, 1838 (invalid: not Achatina fulva Beck, 1837)
  • Achatina mauritiana Lamarck, 1822 (junior synonym)
  • Achatina mauritiana var. sinistrorsa Grateloup, 1840 (junior synonym)
  • Achatina redivina Mabille, 1901 (junior synonym)
  • Achatina zebra var. macrostoma Beck, 1837 (junior synonym)
  • Helix (Cochlitoma) fulicna Férussac, 1821 (basionym)
  • Helix fulica Férussac, 1821 (original combination)

Lissachatina fulica is a species of large land snail that belongs in the subfamily Achatininae of the family Achatinidae.[1] It is also known as the Giant African land snail.[2] It shares the common name "giant African snail" with other species of snails such as Achatina achatina and Archachatina marginata. This snail species has been considered a significant cause of pest issues around the world. It is a federally prohibited species in the USA, as it is illegal to sell or possess.[3] Internationally, it is the most frequently occurring invasive species of snail.[4]

Outside of its native range, this snail thrives in many types of habitat with mild climates. It feeds voraciously and is a vector for plant pathogens, causing severe damage to agricultural crops and native plants. It competes with native snail taxa, is a nuisance pest of urban areas, and spreads human disease.[2]

  • Lissachatina fulica castanea (Lamarck, 1822)
  • Lissachatina fulica coloba (Pilsbry, 1904)
  • Lissachatina fulica hamillei (Petit, 1859)

Distribution

[edit]

The species is native to East Africa,[5] but it has been widely introduced to other parts of the world through the pet trade, as a food resource, and by accidental introduction.[6]

Within Africa, the snail can be found along the eastern coast of South Africa, extending northward into Somalia. However, some of its distribution into northern African may be due to human introduction, starting in northern Mozambique, Tanzania, Kenya, and extending through Somalia into Ethiopia. The snail has been reported in Morocco, Ghana, and the Ivory Coast as early as the 1980s.[7]

In 1961, Albert R. Mead, published the seminal work entitled "The Giant African Snail: A Problem in Economic Malacology".[8] This book compiled known information on the snail, as well as a detailed overview on its global distribution.

Prior to 1800, the snail was found in Madagascar, spreading westward to Mauritius, reaching Réunion in 1821, then to Seychelles in 1840. In 1847, they were introduced to India and in 1900 in Sri Lanka. In 1911, the snail was present in northern Malaysia, possibly from India or Myanmar. In 1922, the snail was identified in Singapore although it may have been present as early as 1917. In 1925, the snail was shipped to Java, from which it spread across Indonesia. In 1928, the snail was observed in Sarawak.[8]

This species has been found in China since 1931[9] and its initial point of distribution in China was Xiamen.[10] The snail has also been established on Pratas Island, of Taiwan.[11][12][6]

The species was established in Hawaii, United States, by 1936. The snail was present in Papua New Guinea by 1946, spreading from New Ireland and New Britain to the mainland by 1976–77. By 1967 the snail was present in Tahiti, spreading through New Caledonia and Vanuatu by 1972 into French Polynesia by 1978, including America Samoa.[7]

By 1990, the snail was reported in Samoa and the Federated States of Micronesia in 1998.[7]

In 1984, L. fulica was found established in the French West Indies, spreading across Guadeloupe and by 1988 arriving in Martinique. In 2008, populations of L. fulica were reported in Trinidad but were greatly reduced by 2010.[13] In 2014, the snail was reported in Havana, Cuba.[14]

In Brazil, the first introduction of L. fulica came in 1988 in Paraná. By 2007, it was recorded in 23 of the 26 Brazilian states.[4] In 2006–08, the snail was recorded in Ecuador, in Pichincha, and may have been present at least 10 years prior in 'snail farms'. The presence of the snail in Colombia was reported by 2008-09. Although the time of the initial introduction is unknown, it has been registered in all regions of the country by 2012.[15][16] Live specimens were found in Piura, Peru, around 2008 as well.[17] The snail may be present in Venezuela and was reported in Puerto Iguazú, Argentina in 2010.[18][19]

The species has been observed in Bhutan (Gyelposhing, Mongar), where it is an invasive species since 2006 and their number increased drastically since 2008.[20][21]

In the contiguous United States, the snail had been reported in the state of Florida in 2011, and later in 2021-22; however, the snail has not established.

Description

[edit]

The eggs of Lissachatina fulica are pure white and opaque but may be slightly yellowish or even somewhat transparent. The eggs have a thin, calcareous shell, and are about 5 mm long and 4 mm wide, resembling a white chicken egg.

A newly hatched snail is called a neonate. When the giant African land snail hatches, it's shell is about 5 to 5.5 mm long, consisting of 2.5 whorls. As the snail grows, its shell extends either clockwise (dextral) or counter-clockwise (sinistral), coiling and creating whirls as the snail ages. Dextral growth is most common.

Younger snails will have a vertical pattern on their shell (wrinkles, welts, and criss-crossing patterns) of brown and cream color bands. As the snail grows, the new whorls of its shell will be smooth and glossy, consisting of only a brown color. A fully adult snail is around 7 cm (2.8 in) in diameter and 20 cm (7.9 in) or more in length, making it one of the largest of all extant land snails.[22] An adult snail may be expected to have 7-9 whorls, but this is not necessarily a reliable indicator of age; nor is the width of the snail's peristome (the shell's lip at the aperture or opening of the shell), which was traditionally used to measure age, as it varies as well.[23]

While the snail most typically has a brown shell with cream sections at its apex, the shell coloration is highly variable. A buttery yellow body (also called pedal or foot) is possible, rather than the typical brownish grey body and brown shell. This variety is nicknamed the 'white jade snail' in China.[24] The snail also comes in the 'golden' variety, sometimes considered an albino type; with a yellow body and yellow shell.

Apertural view of the shell
Lateral view of the shell
Abapertural view of the shell
  • Adult shell size range
    Adult shell size range
  • Adult and juvenile
    Adult and juvenile
  • Three shells of increasing maturity
    Three shells of increasing maturity

Ecology

[edit]

Habitat

[edit]

Within its native range in Africa, the snail is found along the margins of forests. Within its invasive range it can be found in agricultural areas as well as urban areas. The snails prefer areas that shelter them from light in the daytime and prevent desiccation; examples are leaf litter or piles of debris. It will also climb tree trunks or walls when conditions allow.[7]

L. fulica occurs in a wide range of temperate climates, now including most regions of the humid tropics. The snail can tolerate a broad range of soil pH and calcium conditions, although calcium is critical for snail shell development.[7] Relative humidity, such as the amount of rain, is an important factor for snail growth. In fact, the snail's shell growth pattern will reflect rain fall patterns, much like the growth rings of a tree.[25] The species can tolerate temperatures of 0-9°C (48.2°F) to 45°C (113°F), but thrives in temperatures between 22-32°C (71.6-89.6°C). When overwintering is necessary, the snail will burrow below the surface and may not lay eggs until temperatures increase to above 15°C (59°F).[7]

Feeding

[edit]
Feeding on Crinum leaves

The giant African snail is a macrophytophagous herbivore; it eats a wide range of living plant material, commercially important fruits and vegetables, ornamental plants such as flowers, native plants, as well as weeds and detritus plant material. At different life stages and temperatures, the snail has slightly different feeding preferences. For example, young snails are likely to consume soil for its calcium content.[7]

Trash, cardboard, and occasionally stucco have been reportedly consumed.[22][26][27] Under some conditions the snail will consume dead snails and other deceased animals. It can also be found consuming animal feces as a protein source, which is required for optimal growth.[28]

Lifecycle

[edit]

This snail is a protandric hermaphrodite; each individual has both testes and ovaries and is capable of producing both sperm and ova. The testes typically mature first around 5–8 months, followed by the ovaries.[29][30] Self-fertilization has been observed and therefore snails do not require a partner to reproduce, however it is relatively rare and the resulting egg clutch is small with low viability.[23] Typically, mating involves a simultaneous transfer of gametes to each other (bilateral sperm transfer, as compared to unilateral sperm transfer), however only the older snail with mature ovaries will produce eggs. Younger, smaller snails are more likely to initiate mating with a mate preference for larger, older snails; although larger, older snails may also mate with each other.[31][7]

Snails mate at night and their mating begins with courtship rituals that can last up to half an hour, including petting their heads and front parts against each other. One snail initiates the courtship, and if all goes well they begin copulation. However, copulation does not always occur because snails show mate choice behavior, and observations have shown up to 90% of attempted courtships were rejected and did not end in copulation.[32] Copulation can last anywhere from 1–24 hours, but tends to last 6–8 hours.[7] Transferred sperm can be stored within the body up to two years.

The snails are oviparous and lay shelled eggs.[7] The number of eggs per clutch and clutches per year varies by environment and age of the parent, but averages around 200 eggs per clutch and 5–6 clutches per year. The eggs hatch after 8–21 days and the snails emerge as juveniles. They reach adult size in about six months, after which growth slows, but does not cease until death. Life expectancy is 3–5 years in the wild and 5–6 years in captivity, but the snails can live for up to 10 years.[30]

Fresh eggs
Hatching from eggs
Juvenile snail

Snails are primarily active at night and spend their days in dark, damp places such as buried in soil or under leaf litter.[30] They are capable of aestivating up to three years in times of extreme drought, sealing itself into its shell by secretion of a calcareous compound that dries on contact with the air.

Parasites

[edit]

Several different species and types of parasites have been known to infect Lissachatina fulica.

As an invasive species

[edit]

In many places, this snail is a pest of agriculture and households, with the ability to transmit both human and plant pathogens. Suggested preventive measures include strict quarantine to prevent introduction and further spread. This snail has been given top national quarantine significance in the United States.[37] In the past, quarantine officials have been able to successfully intercept and eradicate incipient invasions on the mainland USA.[38]

This snail was twice established in southeastern Florida and was successfully eradicated both times. They were brought to the U.S. through imports, intended for educational uses and to be pets. Some were also introduced because they were accidentally shipped with other cargo.[39] An eradication effort in Florida[40] began in 2011 when they were first sighted, and the last sighting was in 2017. In October 2021 the Florida Department of Agriculture declared the eradication a success after no further sightings in those four years.[41] In June 2022 the snail was again found in Florida.[42]

In the wild, this species often harbors the parasitic nematode Angiostrongylus cantonensis, which can cause a very serious meningitis in humans. Human cases of this meningitis usually result from a person having eaten the raw or undercooked snail, but even handling live wild snails of this species can infect a person with the nematode, thus causing a life-threatening infection.[43]

In some regions, an effort has been made to promote use of the giant African snail as a food resource to reduce its populations. However, promoting a pest in this way is a controversial measure, because it may encourage the further deliberate spread of the snails.

One particularly catastrophic attempt to biologically control this species occurred on South Pacific Islands. Colonies of A. fulica were introduced as a food reserve for the American military during World War II and they escaped. A carnivorous species (Florida rosy wolfsnail, Euglandina rosea) was later introduced by the United States government, in an attempt to control A. fulica, but the rosy wolf snail instead heavily preyed upon the native Partula snails, causing the extinction of most Partula species within a decade.

The snail has been eradicated from California, U.S., Queensland, Australia, Fiji, Western Samoa, Vanuatu, and Wake Island, but these were relatively small populations.[7]

The National Agricultural Health Service has established an ongoing project to detect, study, and prevent the expansion of this pest.[44]

In early April 2021, USCBP intercepted 22 being smuggled from Ghana into the US, along with various other prohibited quarantine items.[45]

Human use

[edit]
Individual being kept as a pet

These snails are used by some practitioners of Candomblé for religious purposes in Brazil as an offering to the deity Oxalá. The snails substitute for a closely related species, the West African giant snail (Archachatina marginata) normally offered in Nigeria. The two species are similar enough in appearance to satisfy religious authorities.[46] They are also edible if cooked properly.[47] In Taiwan, this species is used in the dish of 炒螺肉 (fried snail meat), which is a delicacy among the traditional drinking snacks. L. fulica also constitutes the predominant land snail found in Chinese markets, and larger species have potential as small, efficient livestock.[48]

The snails have also become increasingly popular as pets[17][49][50] in some countries,[51] where various companies have sold the animal both as a pet and an education aide.[52] In light of social media posts where pet owners share images in close contact with the snails, a research from the University of Lausanne alerted with the risks of infections transmitted to humans.[53]

The heparinoid, acharan sulfate, is isolated from this species.[54]

References

[edit]

This article incorporates CC BY-2.0 text from the reference.[46]

  1. ^ Bouchet, P. (2016). "Achatina fulica (Férussac, 1821). In: MolluscaBase". Marinespecies.org. Retrieved 31 December 2016.
  2. ^ a b "Achatina fulica". Global Invasive Species Database. IUCN.
  3. ^ "Giant African Snail". National Invasive Species Information Center. Retrieved 26 August 2024.
  4. ^ a b Thiengo, Silvania (21 September 2006). "Rapid spread of invasive snail in South America: the giant African snail, Achatina fulica, in Brasil" (PDF). Biological Invasions. 9 (6): 693–702. doi:10.1007/s10530-006-9069-6. S2CID 21572666.
  5. ^ Rowson, B.; Warren, B.; Ngereza, C. (2010). "Terrestrial molluscs of Pemba Island, Zanzibar, Tanzania, and its status as an "oceanic" island". ZooKeys (70): 1–39. Bibcode:2010ZooK...70....1R. doi:10.3897/zookeys.70.762. PMC 3088446. PMID 21594041.
  6. ^ a b Fontanilla, Ian Kendrich C.; Maria, Inna Mikaella P. Sta; Garcia, James Rainier M.; Ghate, Hemant; Naggs, Fred; Wade, Christopher M. (9 September 2014). "Restricted Genetic Variation in Populations of Achatina (Lissachatina) fulica outside of East Africa and the Indian Ocean Islands Points to the Indian Ocean Islands as the Earliest Known Common Source". PLOS ONE. 9 (9): e105151. Bibcode:2014PLoSO...9j5151F. doi:10.1371/journal.pone.0105151. ISSN 1932-6203. PMC 4159197. PMID 25203830.
  7. ^ a b c d e f g h i j k Molluscs as crop pests. G. M. Barker. Wallingford, Oxon, UK: CABI Pub. 2002. pp. 55–114. ISBN 0-85199-790-2. OCLC 52761130.{{cite book}}: CS1 maint: others (link)
  8. ^ a b Mead, Albert R. (1961). The Giant African Snail: A Problem in Economic Malacology. Chicago, Illinois, U.S.A: The University of Chicago Press.
  9. ^ Lv, S.; Zhang, Y.; Liu, H. X.; Hu, L.; Yang, K.; Steinmann, P.; Chen, Z.; Wang, L. Y.; Utzinger, J.; Zhou, X. N. (2009). "map of distribution in 2007". PLOS Neglected Tropical Diseases. 3 (2): e368. doi:10.1371/journal.pntd.0000368. PMC 2631131. PMID 19190771.
  10. ^ Lv, S.; Zhang, Y.; Liu, H. X.; Hu, L.; Yang, K.; Steinmann, P.; Chen, Z.; Wang, L. Y.; Utzinger, J. R.; Zhou, X. N. (2009). Knight, Matty (ed.). "Invasive Snails and an Emerging Infectious Disease: Results from the First National Survey on Angiostrongylus cantonensis in China". PLOS Neglected Tropical Diseases. 3 (2): e368. doi:10.1371/journal.pntd.0000368. PMC 2631131. PMID 19190771. figure 5.
  11. ^ Wu S.-P.; Hwang C.-C.; Huang H.-M.; Chang H.-W.; Lin Y.-S.; Lee P.-F (2007). "Land Molluscan Fauna of the Dongsha Island with Twenty New Recorded Species" (PDF). Taiwania. 52 (2): 145–151. Archived from the original (PDF) on 18 July 2011.
  12. ^ Foon, Junn Kitt; Clements, Gopalasamy Reuben; Liew, Thor-Seng (7 April 2017). "Diversity and biogeography of land snails (Mollusca, Gastropoda) in the limestone hills of Perak, Peninsular Malaysia". ZooKeys (682): 1–94. Bibcode:2017ZooK..682....1F. doi:10.3897/zookeys.682.12999. ISSN 1313-2970. PMC 5523159. PMID 28769723.
  13. ^ Shripat, Chanderbhan (2010). "Towards eradication of giant African snail Achatina fulica Bowdich in Trinidad and Tobago". Caribbean Food Crops Society 46 Annual Meeting. 46: 50–57 – via AgEcon Search.
  14. ^ Vázquez, Antonio A; Sánchez, Jorge (2014). "First record of the invasive land snail Achatina (Lissachatina) fulica (Bowdich, 1822) (Gastropoda: Achatinidae), vector of Angiostrongylus cantonensis (Nematoda: Angiostrongylidae), in Havana, Cuba" (PDF). Molluscan Research. doi:10.1080/13235818.2014.977837 – via Taylor & Francis.
  15. ^ A. De La Ossa-Lacayo, J.V. De La Ossa, C.A. Lasso (2012). "Registro del caracol africano gigante Achatina fulica (Bowdich 1822) (Mollusca: Gastropoda-Achatinidae) en Sincelejo, costa Caribe de Colombia". Biota Colombiana. 13 (2): 247–251 – via Humboldt.org.co.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  16. ^ E. Cano-Perez, J. Torres-Pacheco, L. Barraza-Quiroz, J. Morels-Munoz, D. Gomez-Camargo (2021). "Population characterization and parasitological assessment of the giant African snail (Achatina fulica) in urban areas of Cartagena, Colombia". F1000Research. 10 (77): 77. doi:10.12688/f1000research.28002.2. PMC 8280942. PMID 34336187.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  17. ^ a b Francisco Borrero; Bram Breure; Carl C. Christensen; Modesto Correoso; Valentin Mogollon; Mogollón Avila (January 2009). "Into the Andes: three new introductions of Lissachatina fulica (Gastropoda, Achatinidae) and its potential distribution in South America". Tentacle. 17: 6–8 – via ResearchGate.
  18. ^ D.E. Gutiérrez Gregoric, V. Núñez, R. Vogler, A. Rumi (2011). "Invasion of the Argentinean Paranense rainforest by the giant African snail Achatina fulica" (PDF). American Malacological Bulletin. 29 (1–2): 135–137. doi:10.4003/006.029.0205. hdl:11336/104655 – via BioOne.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  19. ^ "Caracol Gigante Africano en Argentina". 30 June 2013. Retrieved 13 April 2019.
  20. ^ "Gyalpoizhing town representative accused of spreading snails". Bhutan Broadcasting Service. Bhutan Broadcasting Service. Retrieved 1 October 2021.
  21. ^ "Outbreak of the invasive Giant African Land Snail in Gyelpozhing frustrates the residents". The Bhutanese. Retrieved 1 October 2021.
  22. ^ a b "Achatina fulica (Giant African Snail)" (PDF). Sta.uwi.edu. Retrieved 22 March 2022.
  23. ^ a b Dickens, Katrina Leah; Capinera, John Lowell; Smith, Trevor Randall (February 2018). "Laboratory assessment of growth and reproduction of Liassachatina fulica (Gastropoda: Achatinidae)". Journal of Molluscan Studies. 84 (1): 46–53. doi:10.1093/mollus/eyx044 – via Oxford Academic.
  24. ^ Cao, Yu Liang; Guo, Yue; Zhang, Hui; Wang, Chun Sheng (2022). "Internet-sold snail Pomacea canaliculata and Achatina fulica might transmit Angiostrongylus cantonensis in mainland China" (PDF). Pakistan Journal of Zoology: 1–4.
  25. ^ Rangarajan, Ravi; Ghosh, Prosenjit; Naggs, Fred (2013). "Seasonal variability of rainfall recorded in growth bands of the giant African land snail Lissachatina fulica (Bowdich) from India" (PDF). Chemical Geology. 357: 223–230 – via Elsevier.
  26. ^ Hoffman, Taylor; Pirie, Nicole. "Achatina fulica (giant african snail)". Animal Diversity Web. Retrieved 14 July 2023.
  27. ^ "Giant snails attack Florida". CBS News. 15 April 2013.
  28. ^ Soares C. M.; Hayashi C.; Gonçalves G. S.; Nagae M. Y.; Boscolo W. R. (1999). "Exigência de proteína para o caracol gigante (Achatina fulica) em fase de crescimento" [Protein requirements for giant snail (Achatina fulica) during the growth phase]. Acta Scientiarum (in Portuguese). 21 (3): 683–686.
  29. ^ Tomiyama, Kiyonori (1993). "Growth and Maturation Pattern in the African Giant Snail, Achatina fulica (Ferussac) (Stylommatophora: Achatinidae)". VENUS Japan Journal of Malacology. 52 (1): 87–100.
  30. ^ a b c "Achatina fulica (giant African land snail)". www.cabi.org. Retrieved 20 November 2021.
  31. ^ Tomiyama, Kiyonori (1996). "Mate-Choice Criteria in a Protandrous Simultaneously Hermaphroditic Land Snail Achatina fulica (Ferussac) (Stylommatophora: Achatinidae)". Journal of Molluscan Studies. 62: 101–111. doi:10.1093/mollus/62.1.101 – via The Malacological Society of London.
  32. ^ TOMIYAMA, KIYONORI (15 February 1996). "MATE-CHOICE CRITERIA IN A PROTANDROUS SIMULTANEOUSLY HERMAPHRODITIC LAND SNAIL ACHATINA FULICA (FÉRUSSAC) (STYLOMMATOPHORA: ACHATINIDAE)". Journal of Molluscan Studies. 62 (1): 101–111. doi:10.1093/mollus/62.1.101. ISSN 0260-1230.
  33. ^ a b c d Ohlweiler, F. P.; Guimarães, M. C. D. A.; Takahashi, F. Y.; Eduardo, J. M. (2010). "Current distribution of Achatina fulica, in the State of São Paulo including records of Aelurostrongylus abstrusus (Nematoda) larvae infestation". Revista do Instituto de Medicina Tropical de São Paulo. 52 (4): 211–214. doi:10.1590/S0036-46652010000400009. PMID 21748230. PDF.
  34. ^ a b Kremer, William (3 August 2012). "African snail: Deadly invasion in South America". BBC News. Retrieved 7 October 2014.
  35. ^ a b c Igbinosa, I. B.; Isaac, C.; Adamu, H. O.; Adeleke, G. (1 December 2016). "Parasites of edible land snails in Edo State, Nigeria". Helminthologia. 53 (4): 331–335. doi:10.1515/helmin-2016-0031. S2CID 55824665.
  36. ^ a b c d Libora M.; Morales G.; Carmen S.; Isbelia S.; Luz A. P. (2010). "Primer hallazgo en Venezuela de huevos de Schistosoma mansoni y de otros helmintos de interés en salud pública, presentes en heces y secreción mucosa del molusco terrestre Achatina fulica (Bowdich, 1822)" [First finding in Venezuela of Schistosoma mansoni eggs and other helminths of interest in public health found in faeces and mucous secretion of the mollusc Achatina fulica (Bowdich, 1822)]. Zootecnia Tropical (in Spanish). 28: 383–394. ISSN 0798-7269.
  37. ^ Cowie, R. H.; Dillon, R. T.; Robinson, D. G.; Smith, J. W. (2009). "Alien non-marine snails and slugs of priority quarantine importance in the United States: A preliminary risk assessment" (PDF). American Malacological Bulletin. 27 (1–2): 113–132. doi:10.4003/006.027.0210. S2CID 54919881. Archived from the original (PDF) on 16 June 2016.
  38. ^ "PBS "Alien Invasion". Accessed on 6 January 2008". PBS. Retrieved 7 October 2014.
  39. ^ "National Agriculture Library". National Invasive Species Information Center. 17 March 2016. Retrieved 25 April 2016.
  40. ^ Campo-Flores, Arian. 4 October 2011. "Giant Alien Snails Attack Miami, Though They're Not in Much of a Rush: Eradication Teams Go House to House, Nabbing 10,000 Invaders; 'Crunch Under Our Feet'." Wall Street Journal. Link
  41. ^ Berlin, Samantha (7 October 2021). "Florida spent over $24M eradicating invasive snails that damage homes". Newsweek. Retrieved 8 October 2021.
  42. ^ Mole, Beth (6 July 2022). "Florida once again has giant calamitous snails that spew parasitic brain worms". Ars Technica. Retrieved 7 July 2022.
  43. ^ Kremer, William (3 August 2012). "African snail: Deadly invasion in South America". BBC News. Retrieved 7 October 2014.
  44. ^ "Detección de Caracol Gigante Africano en la ciudad de Corrientes". SENASA (in Spanish). 12 November 2013. Retrieved 13 April 2019.
  45. ^ "JFK Airport CBP Catches Highly Invasive Giant African Snails in Man's Baggage". U.S. Customs and Border Protection. 6 April 2021. Retrieved 12 April 2021.
  46. ^ a b Léo Neto, N. A.; Brooks, S. E.; Alves, R. M. R. (2009). "From Eshu to Obatala: Animals used in sacrificial rituals at Candomblé "terreiros" in Brazil". Journal of Ethnobiology and Ethnomedicine. 5: 23. doi:10.1186/1746-4269-5-23. PMC 2739163. PMID 19709402.
  47. ^ Hayward, Tim (3 July 2009). "African Land Snails Video". The Guardian.
  48. ^ Lv, S.; Zhang, Y.; Steinmann, P.; Zhou, X.-N. (2008). "Emerging angiostrongyliasis in mainland China". Emerging Infectious Diseases. 14 (1): 161–164. doi:10.3201/eid1401.061529. PMC 2600175. PMID 18258099.
  49. ^ Vogler, Roberto E.; Beltramino, Ariel A.; Sede, Mariano M.; Gregoric, Diego E. Gutiérrez; Núñez, Verónica; Rumi, Alejandra (2013). "The Giant African Snail, Achatina fulica (Gastropoda: Achatinidae): Using Bioclimatic Models to Identify South American Areas Susceptible to Invasion" (PDF). American Malacological Bulletin. 31 (1): 39–50. doi:10.4003/006.031.0115. ISSN 0740-2783. S2CID 55191938.
  50. ^ "Giant snails invade, coat Florida in slime". MNN – Mother Nature Network. Retrieved 30 October 2018.
  51. ^ Fontanilla, Ian Kendrich C.; Sta. Maria, Inna Mikaella P.; Garcia, James Rainier M.; Ghate, Hemant; Naggs, Fred; Wade, Christopher M. (9 September 2014). "Restricted Genetic Variation in Populations of Achatina (Lissachatina) fulica outside of East Africa and the Indian Ocean Islands Points to the Indian Ocean Islands as the Earliest Known Common Source". PLOS ONE. 9 (9): e105151. Bibcode:2014PLoSO...9j5151F. doi:10.1371/journal.pone.0105151. ISSN 1932-6203. PMC 4159197. PMID 25203830.
  52. ^ Dickens, Katrina Leah; Capinera, John Lowell; Smith, Trevor Randall (2018). "Effects of Density and Food Deprivation on Growth, Reproduction, and Survival of Lissachatina fulica". American Malacological Bulletin. 36 (1): 57–61. doi:10.4003/006.036.0115. ISSN 0740-2783. S2CID 90933828.
  53. ^ Alexander Saraff Marcos (14 November 2023). "Giant African snails: A pet for some, a potential carrier of dangerous infections for humans study says".
  54. ^ Gunay, NS; Linhardt, RJ (1999). "Heparinoids: structure, biological activities and therapeutic applications". Planta Med. 65 (4): 301–6. doi:10.1055/s-1999-13990. PMID 10364832.
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