A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 3703100
Author(s) Ghielmi, Samuele; Menegon, Michele; Marsden, Stuart J.; Laddaga, Lorenzo; Ursenbacher, Sylvain
Author(s) at UniBasel Ursenbacher, Sylvain
Year 2016
Title A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Journal Journal of Zoological Systematics and Evolutionary Research
Volume 54
Number 3
Pages / Article-Number 161-173
Keywords Vipers – Vipera berusVipera walser – reptile conservation – new species – bPTP species delimitation model – Alps – biogeography – climate change
Abstract We describe Vipera walser, a new viper species from the north-western Italian Alps. Despite an overall morphological resemblance with Vipera berus , the new species is remarkably distinct genetically from both V. berus and other vipers occurring in western Europe and shows closer affinities to species occurring only in the Caucasus. Morphologically, the new species appear to be more similar to V. berus than to its closest relatives occurring in the Caucasus, but can be readily distinguished in most cases by a combination of meristic features as confirmed by discriminant analysis. The extant population shows a very low genetic variability measured with mitochondrial markers, suggesting that the taxon has suffered a serious population reduction/bottleneck in the past. The species is extremely range-restricted (less than 500 km2) and occurs only in two disjunct sites within the high rainfall valleys of the Alps north of Biella. This new species should be classified as globally ‘endangered’ due to its small and fragmented range, and an inferred population decline. The main near-future threats to the species are habitat changes associated with reduced grazing, along with persecution and collecting.
Publisher Wiley
ISSN/ISBN 0044-3808 ; 1439-0469
edoc-URL http://edoc.unibas.ch/52398/
Full Text on edoc No
Digital Object Identifier DOI 10.1111/jzs.12138
ISI-Number WOS:000379536800001
Document type (ISI) Editorial Material

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