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1

Population dynamics and spatial behaviour of Microtus tatricus [Arvicolinae, Rodentia]

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Ruda M., Kocian L., Martinkova N., Ziak D.
Acta Theriologica
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2010
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tom 55
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nr 1
81-88
The population dynamics of the Tatra vole Microtus tatricus (Kratochvíl, 1952) (Arvicolinae, Rodentia) was monitored as part of a long-term study (1996–2008) of demography of small mammals conducted in Western Tatra Mountains—Roháče, Slovakia. We observed low abundance and population densities and a balanced sex ratio but slightly more frequent captures of females. Reproductively active Tatra voles were significantly larger and heavier than reproductively inactive voles. Reproduction in both sexes tended to begin in early spring, and females moved less than males. Individuals start to reproduce after overwintering. Spatial characteristics differed between sexes, with home range size, distance travelled, and observed range length being non-significantly greater in males than in females, suggesting greater male mobility. Females remained longer on the site than did males. Mature individuals of both sexes exhibited territoriality during the peak of breeding season in spring. Home range overlap occurred more often within females, and mainly in summer and autumn.
2

Comparative odontometrical analysis of the first lower molar in Microtus [Terricola] multiplex [Arvicolinae, Rodentia] from western Alps

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Brunet-Lecomte P., Nappi A., Montuire S.
Acta Theriologica
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2010
|
tom 55
|
nr 2
129-138
The morphology of the first lower molar (M1) of Microtus (Terricola) multiplex (Fatio, 1905) was compared amongst 15 populations from the Alps (Switzerland, Italy, France). M. multiplex orientalis from Trentino Alto Adige is close to the nominative subspecies M. multiplex multiplex from Ticino characterised by a great size, a not tilted pitymyan rhombus and an important development of the anterior part of the M1. M. multiplex druentius from Ubaye mainly differs from the nominative subspecies by a smaller tooth size. Populations from Valle d’Aosta and Piemonte show on the whole a morphology intermediate between M. m. multiplex and M. m. druentius subspecies, however, the pitymyan rhombus is more tilted and the development of the anterior part more reduced in populations from Eastern and Central Piemonte. The Western populations (from Trièvès, Vercors, Royans and Chambaran) belonging to the subspecies M. m. niethammeri are the most differentiated with a small or median size of the M1, a reduced development of the anterior part and a very tilted pitymyan rhombus, particularly in the population from Chambaran. The populations from Matheysine and Grésivaudan are morphologically a link between M. m. druentius and M. m. niethammeri subspecies.
3

A widespread distribution for Arostrilepis tenuicirrosa (Eucestoda: Hymenolepididae) in Myodes voles (Cricetidae: Arvicolinae) from the Palearctic based on molecular and morphological evidence: historical and biogeographic implications

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Galbreath K. E., Ragaliauskaite K., Kontrimavichus L., Makarikov A. A., Hoberg E. P.
Acta Parasitologica
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2013
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tom 58
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nr 4
Hymenolepidid cestodes in Myodes glareolus from Lithuania and additional specimens originally attributed to Arostrilepis horrida from the Republic of Belarus are now referred to A. tenuicirrosa. Our study includes the first records of A. tenuicirrosa from the European (western) region of the Palearctic, and contributes to the recognition of A. horrida (sensu lato) as a complex of cryptic species distributed broadly across the Holarctic. Specimens of A. tenuicirrosa from Lithuania were compared to cestodes representing apparently disjunct populations in the eastern Palearctic based on structural characters of adult parasites and molecular sequence data from nuclear (ITS2) and mitochondrial (cytochrome b) genes. Morphological and molecular data revealed low levels of divergence between eastern and western populations. Phylogeographic relationships among populations and host biogeographic history suggests that limited intraspecific diversity within A. tenuicirrosa may reflect a Late Pleistocene transcontinental range expansion from an East Asian point of origin.
4
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A new species of water vole from the Early Pleistocene of Southern Europe

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Cuenca-Bescos G., Agusti J., Lira J., Melero-Rubio M., Rofes J.
Acta Palaeontologica Polonica
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2010
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tom 55
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nr 4
In the Early Pleistocene Red Lower Unit of the Sima del Elefante site (Sierra de Atapuerca karst complex, Burgos, Spain), levels TE9–TE13, dental and mandibular remains of an arvicoline are referred to as the new species Arvicola jacobaeus sp. nov. The new species has medium−sized hypselodont molars, with abundant cementum in the re−entrant folds, and thick enamel band with differentiation of the Mimomys−type. The occlusal morphology of M3 is simple. The dental morphology of the new species resembles that of Arvicola sapidus, though smaller. It is more derived, in size and morphology than the Middle Pleistocene species Arvicola mosbachensis. The morphologic affinities among Arvicola jacobaeus, Arvicola terrestris, and A. sapidus suggest a common ancestry. A preliminary phylogenetic analysis corroborates that Mimomys savini is the sister group of the Arvicola clade.
5

New records of the snow vole Chionomys nivalis [Rodentia: Arvicolinae] from the Binaloud and Alburz Mountains of Iran

100%
Darvish J., Siahsarvie R., Javidkar M., Mirshamsi O.
Acta Zoologica Cracoviensia. Ser.A Vertebrata
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2005
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tom 48A
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nr 1-2
6

Karyotypes of the Mexican tropical voles Microtus quasiater and M.umbrosus [Arvicolinae: Muridae]

80%
Cervantes F. A., Martinez J., Gonzalez R. M.
Acta Theriologica
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1994
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tom 39
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nr 4
The non-differentially stained karyotypes of the tropical voles Microtus quasiater (Coues, 1874) and M. umbrosus (Merriam, 1898) are described by first time, and compared and contrasted with that of the hypothetical primitive karyotype for Arvicolinae. The karyotype of M. quasiater from Veracruz, Mexico, has 2n = 62 and FN = 66, while that for M. umbrosus from Oaxaca, Mexico, has 2n = 56 and FN = 60. Their chromosomal morphology comprises few two-armed chromosomes and a relatively large number of single-armed chromosomes. Both species share both a medium-sized metacentric X chromosome and a small telocentric Y chromosome. This karyotypical pattern deviates from the hypothetical primitive condition. However, the karyotypes of other Microtus, including Mexican species of temperate affinity, seem to be even more divergent from the ancestral karyotypical pattern.
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