Distributions and habitats of the two partly allopatric cryptic species of the vulnerable moss Hamatocaulis vernicosus (Bryophyta) in Europe

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Etat: Public
Version: Final published version
Licence: Non spécifiée
ID Serval
serval:BIB_780B25F752EE
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Distributions and habitats of the two partly allopatric cryptic species of the vulnerable moss Hamatocaulis vernicosus (Bryophyta) in Europe
Périodique
Botanical Journal of the Linnean Society
Auteur⸱e⸱s
Hedenäs Lars, Collart Flavien, Heras Patxi, Infante Marta, Kooijman Annemieke, Kučera Jan
ISSN
0024-4074
Statut éditorial
Publié
Date de publication
03/2022
Peer-reviewed
Oui
Volume
boac011
Langue
anglais
Résumé
The geographical distributions of the two cryptic species of the wetland moss Hamatocaulis vernicosus were mapped for western, central and northern Europe, based on identifications of the two by the nuclear ITS1 + 2 and the plastid rpl16 and trnL–trnF. The distributions of the two cryptic species overlap to a large extent. However, in the west and south-west only cryptic species 1 is present, whereas in the boreal north only cryptic species 2 occurs, which agrees with its distribution in Scandinavia. Despite these differences in distribution, no differences between the two cryptic species were revealed in habitat water chemistry, elevation distribution or climatic niches. The difference in distribution therefore suggests that cryptic species 1 could have survived the glacial period in southern Europe and cryptic species 2 in northern or eastern Europe. However, the studied molecular markers did not reveal geographical patterns suggesting origins in different glacial refugia. Although populations of both cryptic species have decreased in large portions of western Europe, a significantly negative Tajima’s D may reflect the long-term expansion south of Scandinavia since the glacial bottleneck, potentially correlated with the expansion of earlier extensive agricultural management of wetlands.
Mots-clé
climatic niche, conservation, EU Habitat Directive, glacial refugia, water chemistry, wetland mosses
Création de la notice
19/07/2022 14:11
Dernière modification de la notice
20/07/2022 5:39
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