''Arianta arbustorum'' is a medium-sized

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as ...

, sometimes known as the "copse snail", a

terrestrial Terrestrial refers to things related to land or the planet Earth. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on or near the ground, as opposed to ...

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Helicidae Helicidae is a large, diverse family of small to large, air-breathing land snails, sometimes called the "typical snails." A number of species in this family are valued as food items, including ''Cornu aspersum'' (formerly ''Helix aspersa'') the b ...

. MolluscaBase eds. (2021). MolluscaBase. Arianta arbustorum (Linnaeus, 1758). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1003358 on 2021-02-23

Subspecies

Several subspecies are recognized by some authors: * ''Arianta arbustorum alpicola'' Férussac, 1821 * ''Arianta arbustorum arbustorum'' (Linnaeus, 1758) * ''Arianta arbustorum canigonensis'' (Boubée, 1833) * ''Arianta arbustorum picea'' * ''Arianta arbustorum pseudorudis'' (Schlesch, 1924) * ''Arianta arbustorum repellini'' (Reeve, 1852) * ''Arianta arbustorum styriaca'' (Frauenfeld, 1868) * ''Arianta arbustorum vareliensis'' Ripken & Falkner, 2000

Distribution

This species is native to Europe: * North-western and central Europe with Alps and Carpathians *

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...

Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The ...

Slovakia Slovakia (; sk, Slovensko ), officially the Slovak Republic ( sk, Slovenská republika, links=no ), is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the s ...

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous ...

Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...

. One of the most frequent species of land snails in Switzerland, can be very abundant, up to 20 adults per square meter. * eastern Pyrenees,

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...

* Norway * Iceland *

Faroe Islands The Faroe Islands ( ), or simply the Faroes ( fo, Føroyar ; da, Færøerne ), are a North Atlantic island group and an autonomous territory of the Kingdom of Denmark. They are located north-northwest of Scotland, and about halfway bet ...

* the British Isles:

Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...

and

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

In Britain the species suffered slightly from intensive farming and the continuous destructions of suitable uncultivated refuges. It is rare in Ireland. * Kaliningrad * Finland. In Finland, it has become so common in the

Porvoo Porvoo (; sv, Borgå ; la, Borgoa) is a city and a municipality in the Uusimaa region of Finland, situated on the southern coast about east of the city border of Helsinki and about from the city centre. Porvoo was one of the six medieval to ...

region east of Helsinki, that it is locally called the "Porvoo snail". * Estonia *

Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...

* scattered to Serbia * Bulgaria It is rare in Bulgaria. * western

Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...

''Arianta arbustorum'' is introduced to North America, but is only known from Canada, where established populations are known from

Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

New Brunswick New Brunswick (french: Nouveau-Brunswick, , locally ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. It is the only province with both English and ...

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

, and Prince Edward Island. This species has not yet become established in the US, but it is considered to represent a potentially serious threat as a pest, an

invasive species An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...

which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore, it has been suggested that this species be given top national

quarantine A quarantine is a restriction on the movement of people, animals and goods which is intended to prevent the spread of disease or pests. It is often used in connection to disease and illness, preventing the movement of those who may have been ...

significance in the USA.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". ''American Malacological Bulletin'' 27: 113-132
PDF
.

Description

The

shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard o ...

is usually brown with numerous pale yellowish rows of spots and usually with a brown band above the periphery, occasionally yellowish, reddish or with greenish hue, weakly striated and with fine spiral lines on the upper side. The shell has 5-5.5 convex

whorls A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

with deep suture. The

last whorl The body whorl is part of the morphology (biology), morphology of the gastropod shell, shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk ...

is slightly descending near the

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An opt ...

. The aperture is with prominent white lip inside. The apertural margin is reflected. Umbilicus is entirely covered by the reflected columellar margin. The width of the shell is 18–25 mm. The height of the shell is 12–22 mm. Dimensions are locally variable. The shell shape is globular in most present-day populations, but originally is believed to have been depressed in the

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

, before lowlands were invaded and shells became globular, re-invading mountain regions except some isolated spots among glaciers. The animal is usually black.

Life cycle

''Arianta arbustorum'' lives in forests and open habitats of any kind. It requires humidity. It lives also in disturbed habitats (not in Ireland where it is restricted to old native woodland). It may locally tolerate non-calcareous substrate, in north Scotland also on sandhills. In the Alps up to 2700 m, in Britain 1200 m, in Bulgaria 1500 m. It feeds on green herbs, dead animals and faeces. If snails hatched more than 50 m distant from each other, they are considered isolated since they would not move more than 25 m (neighbourhood area 32–50 m), usually they move about 7–12 m in a year, mostly along water currents. Arianta arbustorum dart

This species of snail makes and uses calcareous

love darts A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcareous or chitinous dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stored internally in a dart sac. The ...

during mating. Reproduction is usually after copulation, but self-fertilization is also possible. The size of the egg is 3.2 mm.Heller J.: ''Life History Strategies''. in Barker G. M. (ed.):
The biology of terrestrial molluscs
'. CABI Publishing, Oxon, UK, 2001, . 1-146, cited page: 428. Maturity is reached after 2–4 years. The maximum age up to 14 years. ''

Angiostrongylus vasorum ''Angiostrongylus vasorum'', also known as French heartworm, is a species of parasitic nematode in the family Metastrongylidae. It causes the disease canine angiostrongylosis in dogs. It is not zoonotic, that is, it cannot be transmitted to huma ...

'' has successfully experimentally infected this snail.Conboy G. A. (30 May 2000
"Canine Angiostrongylosis (French Heartworm)"
In: Bowman D. D. (Ed.) ''Companion and Exotic Animal Parasitology''. International Veterinary Information Service. Accessed 24 November 2009.

References

This article incorporates public domain text from the reference.Species summary for ''Arianta arbustorum''

AnimalBase AnimalBase is a project brought to life in 2004 and is maintained by the University of Göttingen, Germany. The goal of the AnimalBase project is to digitize early zoological literature, provide copyright-free open access to zoological works, and pr ...

, last modified 25 August 2010, accessed 8 October 2010. * Kerney, M.P., Cameron, R.A.D. & Jungbluth, J-H. (1983). Die Landschnecken Nord- und Mitteleuropas. Ein Bestimmungsbuch für Biologen und Naturfreunde, 384 pp., 24 plates. ummer or later Hamburg / Berlin (Paul Parey). * Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017 * Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates.

External links

''Arianta arbustorum''
at

Animalbase AnimalBase is a project brought to life in 2004 and is maintained by the University of Göttingen, Germany. The goal of the AnimalBase project is to digitize early zoological literature, provide copyright-free open access to zoological works, and pr ...

taxonomy,short description, distribution, biology,status (threats), images
''Arianta arbustorum''
images at

Encyclopedia of Life The ''Encyclopedia of Life'' (''EOL'') is a free, online encyclopedia intended to document all of the 1.9 million living species known to science. It is compiled from existing trusted databases curated by experts and with the assistance of non ...

Linnaeus, C. (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Editio decima, reformata [10th revised edition
vol. 1: 824 pp. Laurentius Salvius: Holmiae]
Pennant, T. (1777). British Zoology, vol. IV. Crustacea. Mollusca. Testacea. London. i-viii, 1-154, Plates 1-93

Studies

* Baur, Anette; Baur, Bruno (2005) ''Interpopulation variation in the prevalence and intensity of parasitic mite infection in the land snail Arianta arbustorum'' ; Invertebrate Biology, Vol. 124 Issue 3, p194-201. 8p. 3 Charts. DOI: 10.1111/j.1744-7410.2005.00019.x. * Baur, Bruno & Locher Rolf (1998) ''Sperm allocation in the simultaneously hermaphroditic land snail Arianta arbustorum.'' Animal Behaviour. Oct98, Vol. 56 Issue 4, p839. 7p. * Baur, Bruno (1986) ''Patterns of dispersion, density and dispersal in alpine populations of the land snail Arianta arbustorum (L.) (Helicidae).'' Holarctic Ecology. Mai 1986, Vol. 9 Issue 2, p117-125. 9p * Haase Martin, Esch Susanne & Misof Bernhard (2013) ''Local adaptation, refugial isolation and secondary contact of Alpine populations of the land snail Arianta arbustorum.'' Journal of Molluscan Studies. Aout 2013, Vol. 79 Issue 3, p241-248. 8p. * Haase M & Bisenberger A (2003) ''Allozymic differentiation in the land snail Arianta arbustorum (Stylommatophora, Helicidae): historical inferences'' ; Journal of Zoological Systematics & Evolutionary Research. Aout 2003, Vol. 41 Issue 3, p175-185. 11p. DOI: 10.1046/j.1439-0469.2003.00208.x. * Kleeweint Doris (1999), ''Population size, density, spatial distribution and dispersal in an Austrian population of the land snail Arianta arbustorum styriaca (Gastropoda: Helicidae)'' ; Journal of Molluscan Studies. Aout 1999, Vol. 65 Issue 3, p303-315. 13p. 3 * Haase M & Misof B (2009), ''Dynamic gastropods: stable shell polymorphism despite gene flow in the land snail Arianta arbustorum. Dynamische Schnecken: stabiler Schalenpolymorphismus trotz Genflusses in der Landschnecke Arianta arbustorum.'' Journal of Zoological Systematics & Evolutionary Research. Mai 2009, Vol. 47 Issue 2, p105-114. 10p. DOI: 10.1111/j.1439-0469.2008.00488.x * Minoretti, Nicole; Stoll, Peter; Baur, Bruno (2013) ''Heritability of sperm length and adult shell size in the land snail Arianta arbustorum (Linnaeus, 1758)'' Journal of Molluscan Studies. Aout 2013, Vol. 79 Issue 3, p218-224. 7p. * Schüpbach, Hans U.; Baur, Bruno (2008), ''Parasitic mites influence fitness components of their host, the land snail Arianta arbustorum.''. Invertebrate Biology, Vol. 127 Issue 3, p350-356. 7p. 1 Chart, 2 Graphs. DOI: 10.1111/j.1744-7410.2008.00138.x. {{Taxonbar, from=Q945738 Helicidae Molluscs of Europe Gastropods described in 1758 Taxa named by Carl Linnaeus