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A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps

Ghielmi, Samuele and Menegon, Michele and Marsden, Stuart J. and Laddaga, Lorenzo and Ursenbacher, Sylvain. (2016) A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps. Journal of Zoological Systematics and Evolutionary Research, 54 (3). pp. 161-173.

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Official URL: http://edoc.unibas.ch/52398/

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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.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Integrative Biologie > Naturschutzbiologie (Baur)
UniBasel Contributors:Ursenbacher, Sylvain
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Wiley
ISSN:0044-3808
e-ISSN:1439-0469
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Oct 2017 07:35
Deposited On:30 Oct 2017 07:35

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