Deciphering “cryptic” nature of European rock-dwelling Pyramidula snails (Gastropoda: Stylommatophora)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00129154" target="_blank" >RIV/00216224:14310/22:00129154 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1163/18759866-bja10032" target="_blank" >http://dx.doi.org/10.1163/18759866-bja10032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1163/18759866-bja10032" target="_blank" >10.1163/18759866-bja10032</a>

Result language

angličtina

Original language name

Deciphering “cryptic” nature of European rock-dwelling Pyramidula snails (Gastropoda: Stylommatophora)

Original language description

Many molecular phylogenetic studies conclude by reporting discoveries of new “cryptic” species. However, these putative biological entities are typically left unverified outside of the dna evidence or subjected to only superficial post-hoc analyses. Minute land snails of the Western Palearctic Pyramidula represent one of such examples being considered a cryptic species complex based on previously conducted molecular phylogeny. Several species appear indistinguishable due to noticeable shell tendency towards either high-spired ( Pyramidula rupestris and P. jaenensis ) or low-spired ( P. saxatilis and P. pusilla ) morphotype. Here, we challenge this conclusion by using mt DNA, n DNA, morphometric analyses and qualitative shell features, and seek for a potential evolutionary mechanism behind the conchological similarities. Through an empirical integration of multiple data types we document that the studied taxa can be visually distinguished. Unlike isolated shell measurements, cva s based on traditional morphometrics and geometric morphometrics have power to separate all species from each other, except for P. saxatilis and P. pusilla . However, only a use of previously overlooked shell surface microsculpture makes it possible to identify individuals of all species. Considering tight associations between shell measurements and climate, we propose an evolutionary explanation based on optimization of thermal flux under different climatic selection pressures. Our study brings the awareness towards microscopic shell features, and outlines a general protocol to identify robust visual identification criteria in taxonomic groups containing cryptic (and non-cryptic) members. It also exemplifies an integration of various data types for macroscale species identification, which we believe should follow any discovery of putatively cryptic species.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10613 - Zoology

Project

<a href="/en/project/GA20-18827S" target="_blank" >GA20-18827S: Boreal land snail diversification promoted by isolation through space and time</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Contributions to Zoology

ISSN

1383-4517

e-ISSN

1875-9866

Volume of the periodical

91

Issue of the periodical within the volume

4-5

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

28

Pages from-to

233-260

UT code for WoS article

000893259800001

EID of the result in the Scopus database

2-s2.0-85131380495