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Morphological differentiation in Mus spicilegus and the taxonomic status of mound-building mice from the Adriatic coast of Yugoslavia

Published online by Cambridge University Press:  05 April 2001

B. Krystufek
Affiliation:
Slovene Museum of Natural History, Presernova 20, SI-61001 Ljubljana, Slovenia
M. Macholán
Affiliation:
Laboratory of Genetics and Embryology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veverí 97, CZ-602 00 Brno, Czech Republic
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Abstract

The systematic status of a mound-building mouse population from the Adriatic coast at Ulcinj, Montenegro (Yugoslavia), originally reported as M. hortulanus ssp., is assessed using morphological and morphometric analyses. This population was compared to other M. spicilegus samples from Ukraine & Moldavia, Voivodina (Yugoslavia) and Austria, and to M. macedonicus from Turkey, Greece, and Macedonia. Character states of selected non-metric traits, along with the presence of a typical mound-building behaviour, allowed classification of the study population with M. spicilegus. This was also supported by Canonical Variate Analysis on size-adjusted dental traits. Uni- and multivariate morphometric studies revealed marked differentiation between the Ulcinj sample and the remaining M. spicilegus populations. The great deal of morphological divergence suggests a distinct systematic position of the Adriatic population, here described as Mus spicilegus adriaticus ssp. nova. Hypotheses about the possible origin and evolutionary history of the two eastern aboriginal mouse species are discussed.

Type
Research Article
Copyright
© 1998 The Zoological Society of London

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