Anisus vorticulus
Anisus vorticulus | |
---|---|
Shells of Anisus vorticulus | |
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
(unranked): | |
Superfamily: | |
Family: | |
Subfamily: | |
Tribe: | |
Genus: | |
Subgenus: | |
Species: | A. vorticulus
|
Binomial name | |
Anisus vorticulus |
Anisus vorticulus (lesser ramshorn snail or little whirlpool ramshorn snail) is a species of minute, air-breathing, freshwater snail, an aquatic gastropod mollusk in the family Planorbidae, the ramshorn snails.
Distribution
This species is mentioned in annexes II and IV of the Habitats Directive.
It occurs in:
- Czech Republic[3] - critically endangered (CR).[4] Its Conservation status in 2004-2006 is bad (U2) in report for European commission in accordance with Habitats Directive.[5]
- England - vulnerable (VU),[6] listed in List of endangered species in the British Isles. It is currently the focus of a Back from the Brink project.[7]
- Ireland
- Germany - critically endangered (vom Aussterben bedroht)[8]
- Netherlands[9]
- Poland
- Slovakia[3]
- Latvia
- Croatia - in the Krka National Park. First finding of this species in Craoatia was in 2009.[10]
Habitat
This small snail lives in pools with standing water and in oxbow lakes, but these biotopes are threatened because of sedimentation and ecological succession.[11]
In the Czech Republic this species usually lives in biotopes where there are lots of Lemna trisulca.[11]
Water quality that is suitable for Anisus vorticulus is water without turbidity; with a pH from 7 to 7,5; with calcium from 40 to 400 mg/l and with electrical conductivity from 200 to 1100 mS/m.[11]
References
- ^ Van Damme D. (2012). "Anisus vorticulus". The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 22 February 2015.
- ^ Troschel F. H. (1834). De limnaeaceis seu de gasteropodis pulmonatis quae nostris in aquis vivunt. pp. [1-5], 1-65, [1]. Berolini. page 51.
- ^ a b Template:Cs icon Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
- ^ Juřičková L., Horsák M. & Beran L. (2001) "Check-list of the molluscs (Mollusca) of the Czech Republic". Acta Societatis Zoologicae Bohemicae 65: 25-40.
- ^ Template:Cs icon Dušek J., Hošek M. & Kolářová J. (2007) "Hodnotící zpráva o stavu z hlediska ochrany evropsky významných druhů a typů přírodních stanovišť v České republice za rok 2004-2006". Ochrana přírody 62(5): appendix 5:I-IV.
- ^ UK Biodiversity Action Plan "Archived copy". Archived from the original on 2007-06-25. Retrieved 2007-03-05.
{{cite web}}
: Unknown parameter|deadurl=
ignored (|url-status=
suggested) (help)CS1 maint: archived copy as title (link) - ^ "Little Whirlpool Ramshorn Snail". Back from the Brink. Retrieved 16 August 2018.
- ^ Template:De icon Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2.
- ^ "Anemoon > Flora en Fauna > Soorteninformatie". www.anemoon.org (in Dutch).
- ^ Beran L. (2009). "The first record of Anisus vorticulus (Troschel, 1834) (Gastropoda: Planorbidae) in Croatia?". Malacologica Bohemoslovaca 8: 70. PDF.
- ^ a b c Template:Cs icon Agentura ochrany přírody a krajiny ČR (August 2007) Obecné charakteristiky předmětů ochrany v rizikových chráněných územích a návrhy hodnot indikačních parametrů a managementových opatření. skupina: KORÝŠI A MĚKKÝŠI. online, PDF[permanent dead link] Accessed 24 November 2009.
External links
- Anisus vorticulus at Animalbase
- distribution of Anisus vorticulus at European Environment Agency webpage
- Template:Cs icon Anisus vorticulus and its distribution in the Czech Republic with map