Multivariate Morphometrics of Apodemus Mystacinus in the Near East and Its Divergence From European A. M. Epimelas (Mammalia: Rodentia)

Vohralík, Vladimír; Frynta, Daniel; Mikulová, Pavlína; Benda, Petr; Nová, Petra

doi:10.1560/dtu7-19th-t79t-9fdh

Cited by 14 publications

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“…However, multivariate procedures based on molar, skull, and body measurements did not confirm the validity of this subspecies (Vohralik et al, 2002).…”

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confidence: 86%

Determination of genetic variations between Apodemus mystacinus populations distributed in Turkey inferred from mtDNA PCR–RFLP

Karacan¹,

Çolak²,

Çolak³

2015

Turk J Zool

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The rocky mouse, Apodemus mystacinus, is a rodent species distributed in the eastern Mediterranean region. This species lives in varied vegetation, including rocky and stony surfaces covered with forests, small bushes, or cultivated areas up to an elevation of 2700 m (Vohralik et al., 2002;Çolak et al., 2004). A. mystacinus has four controversial subspecies: A. m. mystacinus Danford and Alston (1877) from Sebil, Turkey; A. m. smyrnensis Thomas (1903) from western Turkey; A. m. rhodius Festa (1914) from Rhodes, Crete, and southwestern Turkey; and A. m. euxinus Allen (1915) from northern or northeastern Turkey. A. epimelas Nehring (1902), formerly described as a subspecies of A. mystacinus, is distributed in the Balkan region (former Yugoslavia, Greece, and Bulgaria). This subspecies has been raised to the level of species on the basis of morphometric studies using body size and dental characters (

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“…However, multivariate procedures based on molar, skull, and body measurements did not confirm the validity of this subspecies (Vohralik et al, 2002).…”

mentioning

confidence: 86%

Determination of genetic variations between Apodemus mystacinus populations distributed in Turkey inferred from mtDNA PCR–RFLP

Karacan¹,

Çolak²,

Çolak³

2015

Turk J Zool

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“…Populations of this species also exist on the slopes of Mount Hermon on the eastern side of the Great African Rift Valley at altitudes of 1650 m (sub-Alpine mice), a sub-alpine ecosystem with mean T a s in January and August of 6 and 22°C, respectively, and a mean annual precipitation of over 900 mm [31]. These two populations appear to have been genetically separated for some time, having originated from different invasions [32], [33]. In the Carmel, severe shortages of water at the end of long hot and dry summers have been suggested to present the most problematic environmental challenge for this population [34], [35].…”

Section: Introductionmentioning

confidence: 99%

Environmental Challenges and Physiological Solutions: Comparative Energetic Daily Rhythms of Field Mice Populations from Different Ecosystems

Scantlebury

Haim

2012

PLoS ONE

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Daily and seasonal variations in physiological characteristics of mammals can be considered adaptations to temporal habitat variables. Across different ecosystems, physiological adjustments are expected to be sensitive to different environmental signals such as changes in photoperiod, temperature or water and food availability; the relative importance of a particular signal being dependent on the ecosystem in question. Energy intake, oxygen consumption (VO2) and body temperature (Tb) daily rhythms were compared between two populations of the broad-toothed field mouse Apodemus mystacinus, one from a Mediterranean and another from a sub-Alpine ecosystem. Mice were acclimated to short-day (SD) ‘winter’ and long-day (LD) ‘summer’ photoperiods under different levels of salinity simulating osmotic challenges. Mediterranean mice had higher VO2 values than sub-Alpine mice. In addition, mice exposed to short days had higher VO2 values when given water with a high salinity compared with mice exposed to long days. By comparison, across both populations, increasing salinity resulted in a decreased Tb in SD- but not in LD-mice. Thus, SD-mice may conserve energy by decreasing Tb during (‘winter’) conditions which are expected to be cool, whereas LD-mice might do the opposite and maintain a higher Tb during (‘summer’) conditions which are expected to be warm. LD-mice behaved to reduce energy expenditure, which might be considered a useful trait during ‘summer’ conditions. Overall, increasing salinity was a clear signal for Mediterranean-mice with resultant effects on VO2 and Tb daily rhythms but had less of an effect on sub-Alpine mice, which were more responsive to changes in photoperiod. Results provide an insight into how different populations respond physiologically to various environmental challenges.

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“…Although recent populations of the rock mouse were a subject to a number of morphometric investigations (for a review see Vohralík et al 2002), univariate statistics alone were not powerful enough to detect two discrete groups corresponding to two recently recognised species (cf Miriae 1964, Felten et al 1973. Such evidence, however, was fully achieved by the application of multivariate morphometrics of linear cranial dimensions (Vohralík et al 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Such evidence, however, was fully achieved by the application of multivariate morphometrics of linear cranial dimensions (Vohralík et al 2002).…”

Section: Introductionmentioning

confidence: 99%

“…In this study we aim to (1) test the results of an earlier investigation by Vohralík et al (2002) on the existence of two morphologically separable groups, (2) to evaluate the impact of the independent evolution of the two taxa on their cranial and molar morphology, and to (3) identify segments which have been most affected during the process of evolutionary divergence.…”

Section: Introductionmentioning

confidence: 99%

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Relative warp analysis of cranial and upper molar shape in rock miceApodemus mystacinus sensu lato

Kryštufek

Janžekovič

2005

Acta Theriol

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2005. Relative warp analysis of cranial and upper molar shape in rock mice Apodemus mystacinus sensu lato. Acta Theriologica 50: 493-504.We studied phenotypic relationships among 13 samples of two rock mice species: Apodemus mystacinus (Danford and Alston, 1877) from Anatolia (n = 38) and A. epimelas (Nehring, 1902) from the Balkans (n = 71). Cartesian coordinates of landmarks were collected on the skull and on the occlusal projection of the upper molars (18 landmarks). Centroid size (a measure of overall size) suggested that molars vary independently of overall skull size in both species. Discriminant function analysis on relative warp scores classified > 80% of specimens into the correct species, with the best results obtained for the ventral aspect of the skull and for molars. Projection of the 1st discriminant function scores against centroid size provided good separation between the two species. Analysis of vector displacements associated with extremes of variation suggested considerable phenetic differences on the ventral side of the skull and in the molar shape of the two species. The great majority of shifts in landmarks were in a longitudinal direction and the rearrangements of molar cusps were more complex than was the case with the cranium. A bivariate plot of the posterior hard palate length against the incisive foramen length separated A. mystacinus and A. epimelas well.

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Multivariate Morphometrics of Apodemus Mystacinus in the Near East and Its Divergence From European A. M. Epimelas (Mammalia: Rodentia)

Cited by 14 publications

References 0 publications

Determination of genetic variations between Apodemus mystacinus populations distributed in Turkey inferred from mtDNA PCR–RFLP

Determination of genetic variations between Apodemus mystacinus populations distributed in Turkey inferred from mtDNA PCR–RFLP

Environmental Challenges and Physiological Solutions: Comparative Energetic Daily Rhythms of Field Mice Populations from Different Ecosystems

Relative warp analysis of cranial and upper molar shape in rock miceApodemus mystacinus sensu lato

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