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@article{2214783,
author = {Horsáková, Veronika and Líznarová, Eva and Razkin, O. and Nekola, Jeffrey Clark and Horsák, Michal},
article_location = {NETHERLANDS},
article_number = {4-5},
doi = {http://dx.doi.org/10.1163/18759866-bja10032},
keywords = {cryptic species; integrative taxonomy; landmarks; microsculpture; multivariate morphometrics; Pyramidula},
language = {eng},
issn = {1383-4517},
journal = {Contributions to Zoology},
title = {Deciphering “cryptic” nature of European rock-dwelling Pyramidula snails (Gastropoda: Stylommatophora)},
url = {http://dx.doi.org/10.1163/18759866-bja10032},
volume = {91},
year = {2022}
}
TY - JOUR
ID - 2214783
AU - Horsáková, Veronika - Líznarová, Eva - Razkin, O. - Nekola, Jeffrey Clark - Horsák, Michal
PY - 2022
TI - Deciphering “cryptic” nature of European rock-dwelling Pyramidula snails (Gastropoda: Stylommatophora)
JF - Contributions to Zoology
VL - 91
IS - 4-5
SP - 233-260
EP - 233-260
PB - BRILL
SN - 13834517
KW - cryptic species
KW - integrative taxonomy
KW - landmarks
KW - microsculpture
KW - multivariate morphometrics
KW - Pyramidula
UR - http://dx.doi.org/10.1163/18759866-bja10032
N2 - 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.
ER -
HORSÁKOVÁ, Veronika, Eva LÍZNAROVÁ, O. RAZKIN, Jeffrey Clark NEKOLA a Michal HORSÁK. Deciphering “cryptic” nature of European rock-dwelling Pyramidula snails (Gastropoda: Stylommatophora). \textit{Contributions to Zoology}. NETHERLANDS: BRILL, 2022, roč.~91, 4-5, s.~233-260. ISSN~1383-4517. Dostupné z: https://dx.doi.org/10.1163/18759866-bja10032.
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