Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis
(Alder, 1838): a story of the invasion at the population level

k 2021

Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis (Alder, 1838): a story of the invasion at the population level

ŠLACHTOVÁ, Erika, Luboš BERAN, Markéta NOVÁKOVÁ, Veronika HORSÁKOVÁ, Rowson BEN et. al.

Základní údaje

Originální název

Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis (Alder, 1838): a story of the invasion at the population level

Autoři

ŠLACHTOVÁ, Erika, Luboš BERAN, Markéta NOVÁKOVÁ, Veronika HORSÁKOVÁ, Rowson BEN, Jaroslav HLAVÁČ, Jeffrey Clark NEKOLA a Michal HORSÁK

Vydání

9th European congress of malacological societies (Euromal 2021), 2021

Další údaje

Jazyk

angličtina

Typ výsledku

Prezentace na konferencích

Utajení

není předmětem státního či obchodního tajemství

Příznaky

Mezinárodní význam

Změněno: 10. 9. 2021 12:23, Mgr. Erika Šlachtová, Ph.D.

Anotace

V originále

Most of the non-native gastropods in European inland waters have originated from North America. The planorbid snail Gyraulus parvus is one of these species, being firstly reported from Germany in the 1970s. It has since spread across Central and Western Europe mostly in artificial and highly modified habitats. However, considerable conchological and anatomical similarity exists between it and the native European G. laevis, mainly occupying mesotrophic pools and wetlands. Using four other European and one North American Gyraulus species as outgroups, separate phylogenetic analyses based on mitochondrial and nuclear DNA sequence showed that G. parvus and G. laevis are in fact part of the same species-level clade, with G. parvus having nomenclatural priority. Moreover, the structure within the mitochondrial tree suggests the North American origin of the invasive populations spreading in Europe even in countries where G. parvus has not yet been recorded, such as the United Kingdom. Although native and non-native races in Europe tend to possess some differences in conchology and ecology, the degree of overlap makes it impossible to accurately distinguish between them without the DNA barcode. Our findings change the conservation view on the rare native European race. While interspecific competition among freshwater mollusc species is rare, the invasion on an intraspecific level may represent a serious threat for native populations. Additionally, the spreading of the non-native race of G. parvus from North America increases the risk of introducing non-native trematodes as this exotic race is a very common intermediate host of many schistosomes.

Citovat

ŠLACHTOVÁ, Erika, Luboš BERAN, Markéta NOVÁKOVÁ, Veronika HORSÁKOVÁ, Rowson BEN, Jaroslav HLAVÁČ, Jeffrey Clark NEKOLA a Michal HORSÁK. Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis (Alder, 1838): a story of the invasion at the population level. In 9th European congress of malacological societies (Euromal 2021). 2021.

@proceedings{1790882,
   author = {Šlachtová, Erika and Beran, Luboš and Nováková, Markéta and Horsáková, Veronika and Ben, Rowson and Hlaváč, Jaroslav and Nekola, Jeffrey Clark and Horsák, Michal},
   booktitle = {9th European congress of malacological societies (Euromal 2021)},
   language = {eng},
   title = {Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis (Alder, 1838): a story of the invasion at the population level},
   year = {2021}
}

TY  - CONF
ID  - 1790882
AU  - Šlachtová, Erika - Beran, Luboš - Nováková, Markéta - Horsáková, Veronika - Ben, Rowson - Hlaváč, Jaroslav - Nekola, Jeffrey Clark - Horsák, Michal
PY  - 2021
TI  - Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis (Alder, 1838): a story of the invasion at the population level
N2  - Most of the non-native gastropods in European inland waters have originated from North America. The planorbid snail Gyraulus parvus is one of these species, being firstly reported from Germany in the 1970s. It has since spread across Central and Western Europe mostly in artificial and highly modified habitats. However, considerable conchological and anatomical similarity exists between it and the native European G. laevis, mainly occupying mesotrophic pools and wetlands. Using four other European and one North American Gyraulus species as outgroups, separate phylogenetic analyses based on mitochondrial and nuclear DNA sequence showed that G. parvus and G. laevis are in fact part of the same species-level clade, with G. parvus having nomenclatural priority. Moreover, the structure within the mitochondrial tree suggests the North American origin of the invasive populations spreading in Europe even in countries where G. parvus has not yet been recorded, such as the United Kingdom. Although native and non-native races in Europe tend to possess some differences in conchology and ecology, the degree of overlap makes it impossible to accurately distinguish between them without the DNA barcode. Our findings change the conservation view on the rare native European race. While interspecific competition among freshwater mollusc species is rare, the invasion on an intraspecific level may represent a serious threat for native populations. Additionally, the spreading of the non-native race of G. parvus from North America increases the risk of introducing non-native trematodes as this exotic race is a very common intermediate host of many schistosomes.
ER  -

ŠLACHTOVÁ, Erika, Luboš BERAN, Markéta NOVÁKOVÁ, Veronika HORSÁKOVÁ, Rowson BEN, Jaroslav HLAVÁČ, Jeffrey Clark NEKOLA a Michal HORSÁK. Freshwater snails Gyraulus parvus (Say, 1817) and G. laevis (Alder, 1838): a story of the invasion at the population level. In \textit{9th European congress of malacological societies (Euromal 2021)}. 2021.

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