scholarly journals Distributional, morphological and karyotypic contributions for the Eurasian water vole, Arvicola amphibius (Linnaeus, 1758) (Rodentia: Mammalia), from Turkey

2011 ◽  
Vol 63 (2) ◽  
pp. 407-412 ◽  
Author(s):  
Coşkun Tez ◽  
Osman İbiş ◽  
Rahime Tez ◽  
Metin Kiliç ◽  
Murat Telcioğlu
Keyword(s):  
Diploid Number ◽  
Acrocentric Chromosome ◽  
European Part ◽  
Water Vole ◽  
Metaphase Chromosomes ◽  
Fundamental Number ◽  
Arvicola Amphibius ◽  
Skull Measurements ◽  
Karyological Data ◽  
Single Locality

The present study was focused on both the new distributional records and karyological data for Arvicola amphibius from the European part of Turkey. The karyotype of the Eurasian water vole was investigated by examining its metaphase chromosomes. The diploid number of chromosomes (2n), the fundamental number of chromosomal arms (FN) and the number of autosomal arms (FNa) were found to be 36, 64 and 60, respectively, for one female individual from a single locality in the European part of Turkey. It was determined that A. amphibius has 2n = 36 chromosomes, consisting of seven metacentric, three submetacentric, three subtelocentric and four acrocentric chromosome pairs. The X chromosome was a large submetacentric. The present study confirmed the previous results with regard to 2n. However, comparison of our findings with those of other authors indicates that there are karyotypic differences among the chromosomes. These differences were related to the morphology of chromosomes. Additionally, we reported external and skull measurements and new distributional records from six localities for the Turkish water vole. The measurements presented in this study conform to those of samples examined by other authors.

scholarly journals Karyological comparisons of the European hare (Lepus europaeus Pallas, 1778) from the Asian part of Turkey, with morphological contributions

2012 ◽  
Vol 64 (3) ◽  
pp. 935-942 ◽  
Author(s):  
C. Tez ◽  
Y. Özkul ◽  
O. İbiş
Keyword(s):  
Diploid Number ◽  
Lepus Europaeus ◽  
Brown Hare ◽  
European Hare ◽  
European Brown Hare ◽  
Fundamental Number ◽  
The Third ◽  
Skull Measurements ◽  
Karyological Data ◽  
Acrocentric Chromosomes

We focused on a comparison of karyological data for the European brown hare Lepus europaeus, from the Asian part of Turkey. In Turkish L. europaeus, the diploid number (2n), the fundamental number of chromosomal arms (FN) and the number of autosomal arms (FNa) were determined to be 2n=48, 84 and 80, respectively. The autosomes are composed of three pairs of metacentric chromosomes, four pairs of submetacentric chromosomes, ten pairs of subtelocentric chromosomes and six pairs of acrocentric chromosomes. The X chromosome was a medium-large submetacentric and the Y chromosome was a very small acrocentric. This is the third report for L. europaeus from Turkey and confirmed the previous results with regard to 2n. However, when comparing our findings with those of other authors, there were karyotypic differences among the chromosomes. These differences were related to the number of chromosome arms. Additionally, we present the skull measurements of seven samples for the Turkish brown hare collected from three localities, and these measurements conformed to those of previous studies.

scholarly journals Karyology of Rhodeus amarus (Block, 1782) (Teleostei, Acheilognathidae) from Turkey

2021 ◽  
Vol 5 (1) ◽  
pp. 41-44
Author(s):  
Muradiye Karasu Ayata ◽  
Sevgi Ünal Karakus ◽  
Muhammet Gaffaroğlu
Keyword(s):  
Diploid Number ◽  
Head Kidney ◽  
Kidney Cells ◽  
Metaphase Chromosomes ◽  
Fundamental Number ◽  
C Banding ◽  
Head Kidney Cells

The aim of this study was to determine chromosomal characteristics of Rhodeus amarus (Block, 1782) from Turkey by conventional procedures (Giemsa, C-banding and Ag-NOR staining). Metaphase chromosomes were obtained from the head kidney cells. The diploid number was found as 48 and the fundamental number as 76. Chromosomes were morphologically characterized as metacentric (four pairs), submetacentric (10 pairs) and subtelo-acrocentric (10 pairs). C-bands were found to occur on the pericentromeric regions of most of the chromosomes and a single AgNOR was observed on Silver stained metaphases. The results may expand the knowledge on chromosomal features of bitterlings.

Seasonal variation of Mastophorus muris (Nematoda: Spirurida) in the water vole Arvicola amphibius from southern Sweden

2018 ◽  
Vol 94 ◽  
Author(s):  
B. Neupane ◽  
A.L. Miller ◽  
A.L. Evans ◽  
G.E. Olsson ◽  
J. Höglund
Keyword(s):  
Generalized Linear Model ◽  
Functional Group ◽  
Stomach Contents ◽  
Water Vole ◽  
Model Output ◽  
Southern Sweden ◽  
Intensity Of Infection ◽  
Mean Intensity ◽  
Arvicola Amphibius ◽  
Formed Part

AbstractThis study focused on the spirurid nematode Mastophorus muris in water voles (Arvicola amphibius) trapped in three regions in southern Sweden during spring and fall 2013. The collection of water voles formed part of a larger project (EMIRO) on the cestode Echinococcus multilocularis in rodents. The voles’ stomach contents were examined for the presence of M. muris. Prevalence, mean abundance and mean intensity of infection were calculated. A generalized linear model model was used to examine the effects of sex, functional group, season and region on the number of M. muris individuals in each vole. Forty-seven of 181 (26%) voles were infected with M. muris, with up to 74 worms each. The overall mean intensity (worms per infected vole) was 15 (95% CI 10–21), and abundance (mean number of worms in all voles) was 4 (95% CI 2–6). Model output indicated a significant effect of season and region with respect to abundance of nematode infection, which was independent of sex and functional group of the investigated host.

scholarly journals Karyotypes of three species of Hyperophora Brunner von Wattenwyl, 1878 (Tettigoniidae, Phaneropterinae) enable morphologically similar species to be distinguished

2019 ◽  
Vol 13 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Bruno Cansanção Silva ◽  
Lucas Henrique Bonfim Souza ◽  
Juliana Chamorro-Rengifo ◽  
Douglas Araujo
Keyword(s):  
Chromosome Number ◽  
Diploid Number ◽  
Sex Chromosome ◽  
Acrocentric Chromosome ◽  
Chromosome Morphology ◽  
Similar Species ◽  
Cerrado Biome ◽  
Cytogenetic Studies ◽  
Sex Chromosome System ◽  
The Difference

Phaneropterinae is the largest subfamily of Tettigoniidae, distributed across the globe. There are few cytogenetic studies regarding this group, as in the case of the genus group Aniarae, which represents only two karyotyped species. The current study aims to analyze cytogenetically three species of Hyperophora Brunner von Wattenwyl, 1878 from Brazil. The male diploid number of Hyperophoraminor Brunner von Wattenwyl, 1891 and Hyperophoramajor Brunner von Wattenwyl, 1878 is 2n♂= 31, whereas Hyperophorabrasiliensis Brunner von Wattenwyl, 1878 has shown 2n♂= 29. These three species possess an X0 sex chromosome system and telo/acrocentric chromosome morphology. The only species found in the Pantanal biome, H.brasiliensis, can be chromosomally distinguished from the Cerrado biome species H.major and H.minor, due to the difference in chromosome number (2n♂= 29 and 2n♂= 31, respectively).

The karyotype of Sorex arcticus maritimensis (Insectivora, Soricidae) and its systematic implications

1988 ◽  
Vol 66 (9) ◽  
pp. 1968-1972 ◽  
Author(s):  
V. T. Volobouev ◽  
C. G. van Zyll de Jong
Keyword(s):  
Morphometric Analysis ◽  
Banding Pattern ◽  
Diploid Number ◽  
Sorex Araneus ◽  
Exact Nature ◽  
Full Understanding ◽  
Monophyletic Origin ◽  
Fundamental Number ◽  
First Time

The chromosomes of Sorex arcticus maritimensis are described for the first time and their banding pattern (R- and C-bands) compared with those of Sorex araneus. The results provide further evidence for the monophyletic origin of the araneus–arcticus group and clearly indicate that the primary mechanisms of chromosomal reorganization in this group have been Robertsonian and tandem translocations. The basic karyotype of S. a. maritimensis was found to differ from that of S. a. arcticus in having a different fundamental number (34 vs. 38) but the same diploid number. A full understanding of the karyotypic differences between these taxa requires further work. Whatever the exact nature of the differences, they increase the likelihood of an independent specific status for S. a. maritimensis as suggested by the results of an earlier morphometric analysis.

The Parasites of the Muskrat (Ondatra zibethica L.) in the British Isles

Parasitology ◽  
1936 ◽  
Vol 28 (3) ◽  
pp. 395-402 ◽  
Author(s):  
Tom Warwick
Keyword(s):  
North America ◽  
Rattus Norvegicus ◽  
Common Species ◽  
Helminth Fauna ◽  
Water Vole ◽  
British Isles ◽  
Local Fauna ◽  
Capillaria Hepatica ◽  
Arvicola Amphibius ◽  
Taenia Taeniaeformis

Of the five species of helminths of the British muskrat (Ondatra zibethica L.), two (Notocotylus quinqueserialis and Hymenolepis evaginata) have been introduced with the animal. The three other species of helminths (Capillaria hepatica, Taenia taeniaeformis larva and T. tenuicollis larva) have probably been largely re-acquired from the local fauna. All of the three common species of ectoparasites [Laelaps multispinosus (Tetragonyssus spiniger), Listrophorus validus and Dermacarus n.sp.] occur in North America. Three other species (Tyroglyphus sp., Myobia n.sp., Polyplax sp.) have occurred as single individuals, the last species having probably been acquired from the water vole. Introduction into Britain has greatly depleted the original helminth fauna as regards number of species and individuals; but not so with the ectoparasites. Lists of the parasites hitherto recorded from the muskrat are given and those found in brown rats (Rattus norvegicus Erx.) and water voles (Arvicola amphibius amphibius L.).

scholarly journals Present-Day Epidemiological-Epizootological Peculiarities of Natural Tularemia Foci in Altai

2019 ◽  
Vol 18 (4) ◽  
pp. 25-33
Author(s):  
E. S. Kulikalova ◽  
A. V. Mazepa ◽  
A. K. Syngeeva ◽  
E. S. Polkovnikov ◽  
V. A. Shestakov ◽  
...  
Keyword(s):  
Francisella Tularensis ◽  
Causative Agent ◽  
Open Water ◽  
Water Vole ◽  
Ixodes Persulcatus ◽  
Arvicola Amphibius ◽  
Altai Region ◽  
Environmental Objects ◽  
Haemaphysalis Concinna ◽  
Natural Foci

RelevanceNatural tularemia foci are widespread in Altai Krai and Republic Altai and characterized by high functional stability.Aim.To study modern epidemiological and epizootological features of natural foci of tularemia in the Altai region Russia.Materials and MethodsThe current state of small mammal number in the region is examined. Results of complex studying of 14 Francisella tularensis strains isolated in Republic Altai from 1950 to 2015 (from the collection of Museum of live cultures in Irkutsk Antiplague Research Institute of Rospotrebnadzor) and 21 strains isolated in 2016–2018 in the Altai region are presented. For the first time the tularemia causative agent was isolated at this territory in 1940s. Water vole (Arvicola amphibius) is the most epidemiologically significant as the infection source in these foci. Ixodes ticks: Dermacentor silvarum, D. reticulatus, D. marginatus, Haemaphysalis concinna, Ixodes persulcatus are the main vectors. Now Francisella tularensis subspecies holarctica circulates at Altai territory, and since 2011 additionally F. tularensis mediasiatica.ConclusionsThe functioning of the natural center of tularemia in the territory of the Altai region in the modern period is characterized by coupled circulation of the causative agent of tularemia of two subspecies, sporadic cases of tularemia diseases and infection by the causative agent of environmental objects (bloodsucking arthropods, open water, small mammals). All this indicates a high activity of natural foci with respect to this especially dangerous natural focal infection.

scholarly journals Distribution of the European water vole Arvicola amphibius (Linnaeus, 1758) in Mazowsze and southern Podlasie

2017 ◽  
Vol 60 (2) ◽  
pp. 129-140
Author(s):  
Grzegorz LESIŃSKI ◽  
◽  
Marek KOWALSKI ◽  
Przemysław STOLARZ ◽  
Jakub GRYZ ◽  
...  
Keyword(s):  
Common Species ◽  
Water Bodies ◽  
Water Vole ◽  
Arvicola Amphibius ◽  
Large Samples ◽  
European Water ◽  
Northern Poland ◽  
Set Up

The paper presents distribution of the European water vole Arvicola amphibius (Linnaeus, 1758) in Mazowsze and southern Podlasie in areas situated within a 120-kilometer radius from Warsaw. Data published so far and unpublished results from analyses of the diet of three common species of owls were set up. The rodent is rare in the study area, especially when compared with southern, western and far northern Poland. Its largest population lives in Kampinos Forest, from where many localities are known. In other parts of the study area it is present locally. Only 14 localities were known outside Kampinos Forest in the years 2000–2017. It is even absent from large areas rich in various water bodies like e.g. Mazowiecki and Chojnowski Landscape Parks or Bolimowska Forest. Rarity of the European water vole was confirmed by 235 large samples of owls’ food (at least 100 of vertebrate prey in each) equally distributed across Mazowsze and southern Podlasie, in which this species was not found.

scholarly journals Mammals in the diet of tawny owl Strix aluco in western part of Skierniewice Forest District (central Poland)

2017 ◽  
Vol 78 (4) ◽  
pp. 297-302 ◽  
Author(s):  
Jakub Gryz ◽  
Dagny Krauze-Gryz
Keyword(s):  
Small Mammal ◽  
Water Vole ◽  
Tawny Owl ◽  
Arvicola Amphibius ◽  
Strix Aluco ◽  
Central Poland ◽  
Forest Mosaic ◽  
Mammal Assemblages ◽  
Hazel Dormouse ◽  
Forest District

Abstract The aim of the study was to describe the species diversity of small mammals in the western part of the Skierniewice Forest District (Central Poland) using tawny owl (Strix aluco) pellets. The landscape itself is a field and forest mosaic with small forest complexes. Four forest complexes with an area between 70 and 750 ha and surrounded by arable lands as well as loosely scattered buildings were chosen to carry out our work in. Owl pellets were collected in the years 2014–2016 and examined for small mammal remains employing standard protocols. Altogether, we identified 963 items belonging to 17 different mammalian prey species. The most numerous was the yellow-necked mouse, Apodemus flavicollis, which accounted for 33.5% of all identified items. As the second most important group, voles (Microtus spp.) accounted for 12.8% of all identified mammals. Unfortunately, we were unable to find species considered rare in central Poland, i.e. hazel dormouse, Muscardinus avellanarius, European water vole, Arvicola amphibius and field vole, Microtus agrestis. In overall, the species composition of small mammal assemblages in the studied area was similar to adjacent regions.

scholarly journals Water vole Arvicola amphibius (Linnaeus, 1758) (Arvicolidae) as an agent of biological control of a tree snail Arianta arbustorum (Linnaeus, 1758) (Mollusca, Gastropoda, Helicidae)

2020 ◽  
pp. 43-54
Author(s):  
Евгений Викторович Шиков
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Control Agent ◽  
Control Measures ◽  
Russian Plain ◽  
Effective Control ◽  
Water Vole ◽  
Indigenous Species ◽  
Arvicola Amphibius ◽  
Arianta Arbustorum

Древесная улитка Arianta arbustorum, в последние десятилетия распространившаяся в центре Русской равнины, стала опасным вредителем сельского хозяйства. Заселяя природные биотопы, она вытесняет аборигенные виды как растений, так и моллюсков. Эффективные меры борьбы с A. arbustorum не разработаны. Даётся оценка жизнедеятельности водяной полёвки Arvicola amphibius по отношению к древесной улитке. Плотность A. arbustorum в саду около нор водяной полёвки 2433 экз/м2, а на удалении 5 метров от нор - 5231 экз/м2. Разница статистически достоверна. Показано, что поедание водяной полёвкой древесных улиток локально снижает их плотность. Водяная полёвка выступает как природный агент биологического контроля A. arbustorum, поддерживающий видовое многообразие в природе. Установлено, что осенью 65% всех взрослых A. arbustorum закапываются в землю, и уже недоступны для поедания водяными полёвками. Кормовые запасы водяной полёвки на зиму из моркови и картофеля обнаружены в 45 м от ближайшего огорода. The Wood snail Arianta arbustorum, which in recent decades has spread in the center of the Russian Plain, has become a dangerous pest of agriculture. Settling natural biotopes, it crowds out indigenous species of both plants and mollusks. Effective control measures against A. arbustorum have not been developed. Here we assess the activity of the water vole Arvicola amphibius in relation to the Wood snail. The density of A. arbustorum in the garden near the water vole burrows is 2433 ind./m2, while at a distance of 5 meters from the burrows it becomes 5231 ind./ m2. The difference is statistically significant. Water vole eating wood snails locally reduce their density. Voles thus act as a natural biological control agent of A. arbustorum, preserving species diversity. In the fall around 65% of A. arbustorum adults burrow into the ground and are no longer available for water voles. Winter fodder stocks of a Water vole with carrots and potatoes were found 45 m from the nearest garden.

Sign in / Sign up

Export Citation Format

Share Document