| evolutionary history of the greater white-toothed shrew (crocidura russula) inferred from analysis of mtdna, y, and x chromosome markers. | we investigate the evolutionary history of the greater white-toothed shrew across its distribution in northern africa and mainland europe using sex-specific (mtdna and y chromosome) and biparental (x chromosome) markers. all three loci confirm a large divergence between eastern (tunisia and sardinia) and western (morocco and mainland europe) lineages, and application of a molecular clock to mtdna divergence estimates indicates a more ancient separation (2.25 m yr ago) than described by some prev ... | 2005 | 16098767 |
| phylogeographical footprints of the strait of gibraltar and quaternary climatic fluctuations in the western mediterranean: a case study with the greater white-toothed shrew, crocidura russula (mammalia: soricidae). | we used mitochondrial cyt b sequences to investigate the phylogenetic relationships of crocidura russula (sensu lato) populations across the strait of gibraltar, western europe, maghreb, and the mediterranean and atlantic islands. this revealed very low genetic divergence between european and moroccan populations. the application of a molecular clock previously calibrated for shrews suggested that the separation of european from moroccan lineages occurred less than 60 000 bp, which is at least 5 ... | 2005 | 15773942 |
| characterization of microsatellite loci in the greater white-toothed shrew crocidura russula. | | 1997 | 9200831 |
| hand development and sequence of ossification in the forelimb of the european shrew crocidura russula (soricidae) and comparisons across therian mammals. | hand development in the european shrew crocidura russula is described, based on the examination of a cleared and double-stained ontogenetic series and histological sections of a c. 20-day-old embryo and a neonate. in the embryo all carpal elements are still mesenchymal condensations, and there are three more elements than in the adult stage: the 'lunatum', which fuses with the scaphoid around birth; a centrale, which either fuses with another carpal element or just disappears later in ontogeny; ... | 2004 | 15291793 |
| mitochondrial simple sequence repeats and 12s-rrna gene reveal two distinct lineages of crocidura russula (mammalia, soricidae). | a short segment (135 bp) of the control region and a partial sequence (394 bp) of the 12s-rrna gene in the mitochondrial dna of crocidura russula were analyzed in order to test a previous hypothesis regarding the presence of a gene flow disruption in northern africa. this breakpoint would have separated northeast-african c. russula populations from the european (plus the northwest-african) populations. the analysis was carried out on specimens from tunisia (c. r. cf agilis), sardinia (c. r. ichn ... | 2004 | 15162115 |
| inbreeding in the greater white-toothed shrew, crocidura russula. | we combined mark-and-recapture studies with genetic techniques of parentage assignment to evaluate the interactions between mating, dispersal, and inbreeding, in a free-ranging population of crocidura russula. we found a pattern of limited and female-biased dispersal, followed by random mating within individual neighborhoods. this results in significant inbreeding at the population level: mating among relatives occurs more often than random, and f(it) analyses reveal significant deficits in hete ... | 2003 | 12703953 |
| lipotyphla limb myology comparison. | fore- and hindlimb muscles were dissected in four species of lipotyphla: the western european hedgehog erinaceus europaeus (erinaceidae, erinaceinae); the moonrat echinosorex gymnura (erinaceidae, hylomyinae or galericinae); the tailless tenrec tenrec ecaudatus (tenrecidae, tenrecinae); and the common european white-toothed shrew crocidura russula (soricidae, soricinae). this work completely reviews the limb musculature of these walking mammals. twelve myological characters were evaluated in ord ... | 2002 | 11921044 |
| photoreceptor types and distributions in the retinae of insectivores. | the retinae of insectivores have been rarely studied, and their photoreceptor arrangements and expression patterns of visual pigments are largely unknown. we have determined the presence and distribution of cones in three species of shrews (common shrew sorex araneus, greater white-toothed shrew crocidura russula, dark forest shrew crocidura poensis; soricidae) and in the lesser hedgehog tenrec echinops telfairi (tenrecidae). special cone types were identified and quantified in flattened whole r ... | 2008 | 11193110 |
| individual reproductive success and effective population size in the greater white-toothed shrew crocidura russula. | in order to investigate the determinants of effective population size in the socially monogamous crocidura russula, the reproductive output of 44 individuals was estimated through genetic assignment methods. the individual variance in breeding success turned out to be surprisingly high, mostly because the males were markedly less monogamous than expected from previous behavioural data. males paired simultaneously with up to four females and polygynous males had significantly more offspring than ... | 2000 | 10821616 |
| contraction parameters, myosin composition and metabolic enzymes of the skeletal muscles of the etruscan shrew suncus etruscus and of the common european white-toothed shrew crocidura russula (insectivora: soricidae). | in the etruscan shrew, the isometric twitch contraction times of extensor digitorum longus (edl) and soleus muscles are shorter than in any other mammal, allowing these muscles to contract at outstandingly high contraction frequencies. this species has the highest mass-specific metabolic rate of all mammals and requires fast skeletal muscles not only for locomotion but also for effective heat production and for an extremely high ventilation rate. no differences could be detected in the fibre typ ... | 1999 | 10460733 |
| anatomical study of the abdominal arterial system in soricids (insectivora, mammalia): functional and phylogenetic implications. | information on the anatomy of the abdominal arterial system in insectivora is scarce. we described the origin, distribution, and variations of the visceral abdominal arteries in some soricidae in order to provide the first comprehensive data on this subject in insectivora. results were interpreted from a functional and phylogenetic viewpoint. | 1997 | 9143678 |
| novel sperm crypts and behavior of gametes in the fallopian tube of the white-toothed shrew, crocidura russula monacha. | the gametes of an insectivore, the white-toothed shrew, crocidura russula monacha, present certain idiosyncratic features not seen in most other eutherian mammals. the spermatozoa display an acrosome of giant proportions, and are produced in relatively small numbers. in trans-illuminated oviducts examined with dic optics, spermatozoa were first sequestered in languid clutches within the isthmus in deep narrow crypts, with some eventually ingested by the crypt epithelium. then, at ovulation (ca. ... | 1997 | 9063000 |
| female-biased dispersal in the monogamous mammal crocidura russula: evidence from field data and microsatellite patterns. | we investigated dispersal patterns in the monogamous crocidura russula, based both on direct field observations (mark-recapture data) and on genetic analyses (microsatellite loci). natal dispersal was found to be low. most juveniles settled within their natal territory or one immediately adjacent. migration rate was estimated to two individuals per year and per population. the correlation between genetic and geographical distances over a 16 km transect implies that migration occurs over short ra ... | 1997 | 9061966 |
| a tendon-locking mechanism in two climbing rodents, muscardinus avellanarius and micromys minutus (mammalia, rodentia). | having compared the microanatomy of the toes of a terrestrial to two climbing species, adaptations were found in the flexor tendons and in the integument. in contrast to crocidura russula, both muscardinus avellanarius and micromys minutus have a tendon-locking mechanism (tlm) that is engaged when the middle phalanx is bent. a ventral thickening of the flexor tendon is situated deep to a thickened portion of the ventral tendon sheath. when twigs or stalks are grasped, the tlm allows less muscula ... | 1996 | 8755339 |
| origin and evolution of homologous repeated sequences in the mitochondrial dna control region of shrews. | the complete mitochondrial dna (mtdna) control region was amplified and directly sequenced in two species of shrew, crocidura russula and sorex araneus (insectivora, mammalia). the general organization is similar to that found in other mammals: a central conserved region surrounded by two more variable domains. however, we have found in shrews the simultaneous presence of arrays of tandem repeats in potential locations where repeats tend to occur separately in other mammalian species. these loca ... | 1996 | 8583904 |
| heart and lung adaptations to pregnancy and lactation in a crocidurine shrew. | heart and lung mass, rate of oxygen consumption (vo2), respiration rate (fr), tidal volume (vt), and heart rate (fh), were measured at rest and thermoneutrality in the shrew crocidura russula monacha [(this shrew is claimed to be crocidura suaveolens (catzeflis, f., t. maddalena, s. hellwing and p. vogel (1985). unexpected findings on the taxonomic status of east mediterranean crocidura russula auct. (mammalia, insectivora). zeitschrift fur saugetierkunde 50: 185-201)] in nullipar (n), pregnant ... | 1995 | 8904018 |
| metabolic, respiratory and cardiac activity in the shrew crocidura russula. | oxygen consumption, respiratory rate, heart rate and body temperature of resting common white-toothed shrews (crocidura russula, mean = 11.4 g), have been determined at ambient temperatures (ta) between 0 and 37 degrees c. mean basal oxygen consumption (ta = 30 degrees c, tb = 35.4 degrees c) was 2.3 ml.g-1.h-1 and was about 12% above the value expected on the basis of the allometric relationship applying for mammals. at 0 degree c oxygen consumption was 4.2 times that in the thermal neutral zon ... | 1991 | 1947455 |
| paradoxical social effects on response to cold during ontogeny of the common white-toothed shrew, crocidura russula. | postnatal development of thermoregulatory responses to cold differs between shrews measured singly or in groups as a litter. single shrews increase their metabolic response to cold within 14 days to maintain normothermia. shrews measured in groups show little or no metabolic response to cold and do not reach normothermia before the 19th day. lower body temperatures in groups are explained by torpor, which obviously needs the prerequisite of forming a group. oxygen consumption of the singly measu ... | 1989 | 2778129 |
| development of temperature regulation in the common white-toothed shrew, crocidura russula. | 1. body temperature and oxygen consumption were measured during the first month of postnatal life in two litters of crocidura russula at four different ambient temperatures. 2. body temperature in the nest varies from 30.5-35.0 degrees c during the first 10 days; afterwards it becomes more constant (35.5-37.0 degrees c). 3. first homoiothermic reactions occur on the 2nd day of life and become effective on the 4th day. 4. in the case of undernourished shrews, torpor is already developed on the 2n ... | 1989 | 2565791 |
| the female genital tract of the shrew crocidura russula. | | 1987 | 3799269 |
| diversity of shrews in ethiopia, with the description of two new species of <i>crocidura</i> (mammalia: lipotyphla: soricidae). | two new species of white-toothed shrews, crocidura afeworkbekelei and crocidura yaldeni, are described from southern ethiopia. comparisons are made with other species of crocidura known to occur in ethiopia. a list of 28 species of shrews known from ethiopia is provided, 10 of which (including both newly described species) are currently considered to be endemic to ethiopia. the endemic shrew fauna consists of forest and montane species known to occur within the altitudinal range of 1200-4050 m a ... | 2016 | 27988680 |
| ultrastructural studies on oogenesis in the shrew (crocidura russula): i. the preantral follicle. | ultrastructural analysis of the ovarian follicle prior to antrum formation in the shrew, crocidura russula, shows gradual differentiation of mitochondria, endoplasmic reticulum, golgi complexes, vesicles, and multivescular bodies correlated with the growth of the oocyte from primordial to tertiary follicle and the development of the follicular wall. the growth rate of the follicle in relation to that of the oocyte was found to be biphasic. | 1984 | 6708111 |
| the lung of shrews: morphometric estimation of diffusion capacity. | the lungs of 16 shrews from 8 species (sorex minutus, neomys fodiens, suncus etruscus, crocidura russula, c. juvenetae, c. poensis, c. flavescens, c. giffardi) ranging in body weight from 2.2 to 100 g were studied by morphometry in order to compare the structural diffusion capacity for oxygen. dl02, with the oxygen consumption, vo2, measured on the same animals. vo2 was determined by short term measurements using a respirometer. dlo2 was estimated morphometrically. both parameters demonstrated g ... | 1980 | 7394364 |
| blood oxygen transport and organ weights of two shrew species (s. etruscus and c. russula). | blood parameters concerning oxygen transport and relative organ weights of 11 suncus etruscus and 13 crocidura russula under light halothane anesthesia were investigated. mean body weight of s. etruscus was 2.5 g and for c. russula was 9 g, hemoglobin concentration was 17.4 and 15.6 g/100 ml blood, hematocrit was 50 and 44%, red blood cells were 18 and 11 x 10(6)/microliter, respectively. mean corpuscular volume was calculated to be 26 and 41 micron3, mean diameter 5.5 and 7 micron, and mean thi ... | 1979 | 426099 |
| [respiratory function of blood and relative weight of certain organs in two species of shrew: crocidura russula and suncus etruscus (soricidae mammals)]. | a high oxygen capacity combined with a low oxygen affinity and a large bohr effect achieve a high oxygen transport capacity in small shrews. the high metabolic rate (suncus estruscus: 100 to 350 ml o2/kg. min) can be explained by the combination of the favorable blood parameters with a high relative heart weight (1,2% of body weight) and heart frequencies of 1,000 to 1,350 per minute. | 1978 | 27314 |
| [epizootic significance of white-toothed shrews in the natural focus of steppe type tularemia in the stavropol' region]. | the observations indicate that anthropogenic activities cause structural changes with time among tularemia pathogen carriers in the microfocus. the epizootic and epidemic values of animal species, such as dwarf hamsters and house mice, decrease while those of insect-eating animals, namely white-toothed shrews that refer to group ii increase, in terms of tularemia infection susceptibility. in white-toothed shrews, tularemia infection rates are 4-6-times greater than those in other small mammals t ... | 2009 | 11702461 |
| comparative aspects of lipid metabolism in two shrews (suncus etruscus and crocidura russula). | 1. the amounts of tissue lipids were higher in s. etruscus than in c. russula. 2. the level of liver phospholipids was specially low in c. russula, 2650 mg/100 g as opposed to 3725 g in s. etruscus. 3. this is in good agreement with a reduced rate of the labelled acetate incorporation into the lipids of c. russula. 4. the proportion of unsaturated fatty acids was greater in the liver of s. etruscus; however, the percentage of arachidonic acid was higher in c. russula--15% as opposed to 8%. | 1978 | 318366 |
| ovarian asymmetry in the shrew, crocidura russula monacha. | the total number of corpora lutea developed in the left and right overies of 170 white-toothed shrews (crocidura russula monacha) differed significantly, showing a functional dominance of the left ovary. blastocytes were equally distributed in both uterine horns. | 1977 | 833781 |
| [energy metabolism in 2 crocidurinae: suncus et ruscus (savi, 1822) and crocidura russula (herman, 1780) (insectivora, soricidae)]. | | 1976 | 976573 |
| sexual receptivity and oestrus in the white-toothed shrew, crocidura russula monacha. | in common white-toothed shrews, the vaginal smear was an inadequate indicator of receptivity. nucleated epithelial cells usually predominated and most matings took place when the smear was of this type. cornified cells in the smear in infrequent. mating tests showed that virgin females 2 to 4 months old, were unreceptive for extended periods. willingness to mate increased gradually with the age of the female. females were receptive throughout pregnancy, suggesting a continuous secretion of oestr ... | 1975 | 1206646 |
| [comparative macro- and microscopic anatomy of the nasal cavity of european insectivores]. | the topography of the nasal fossa and its epithelium were studied in 4 european insectivores, sorex araneus l., crocidura russula (hermann), talpa europaea l. and erinaceus europaeus l. the following results were obtained: 1. the length of the nasal capsules is in relation to the length of the head in all 4 species the same. 2. the noses of all forms studies, except e. europaeus are very similar because of the trunk-shaped pars anterior nasi. 3. the numbers of turbinals are constant. 4. of all t ... | 1975 | 1241682 |
| [comparative studies on features of ontogenesis in native soricidae (crocidura russula, sorex araneus and neomys fodiens)]. | | 1972 | 4671230 |
| [research on x zone of adrenal cortex in shrews, sorex araneus l. and crocidura russula h]. | | 1957 | 13480009 |
| infections of horses and shrews with bornaviruses in upper austria: a novel endemic area of borna disease. | borna disease, a lethal infection with borna disease virus-1 (bodv-1), was diagnosed in four horses from upper austria in 2015 and 2016. all cases occurred in winter (two cases in february 2015 and two cases in december 2016), and the maximal distance of the affected stables was 17 km. to demonstrate whether the causative agent was also harbored by its reservoir host, the bicolored white-toothed shrew (crocidura leucodon), 28 shrews from this geographic area were collected in 2015 and investigat ... | 2017 | 28634359 |
| dynamic circulation and genetic exchange of a shrew-borne hantavirus, imjin virus, in the republic of korea. | hantaviruses (family bunyaviridae) are enveloped negative-sense tripartite rna viruses. the natural hosts of hantaviruses include rodents, shrews, moles, and bats. imjin virus (mjnv) is a shrew-borne hantavirus identified from the ussuri white-toothed shrews (crocidura lasiura) in the republic of korea (rok) and china. we have isolated mjnv and determined its prevalence and molecular diversity in gyeonggi province, rok. however, the distribution and phylogeography of mjnv in other regions of rok ... | 2017 | 28295052 |
| divergent ancestral lineages of newfound hantaviruses harbored by phylogenetically related crocidurine shrew species in korea. | spurred by the recent isolation of a novel hantavirus, named imjin virus (mjnv), from the ussuri white-toothed shrew (crocidura lasiura), targeted trapping was conducted for the phylogenetically related asian lesser white-toothed shrew (crocidura shantungensis). pair-wise alignment and comparison of the s, m and l segments of a newfound hantavirus, designated jeju virus (jjuv), indicated remarkably low nucleotide and amino acid sequence similarity with mjnv. phylogenetic analyses, using maximum ... | 2012 | 22230701 |
| circannual testis changes in seasonally breeding mammals. | in the non-equatorial zones of the earth, species concentrate their reproductive effort in the more favorable season. a consequence of seasonal breeding is seasonal testis regression, which implies the depletion of the germinative epithelium, permeation of the blood-testis barrier, and reduced androgenic function. this process has been studied in a number of vertebrates, but the mechanisms controlling it are not yet well understood. apoptosis was assumed for years to be an important effector of ... | 2015 | 26375035 |
| morphometric geographic variation in the asian lesser white-toothed shrew crocidura shantungensis (mammalia, insectivora) in east asia. | this study investigated geographic variation in the asian lesser white-toothed shrew, crocidura shantungensis miller, 1901, among a number of localities in east asia, including the korean peninsula, tsushima island, cheju island, and taiwan, using univariate and multivariate analyses of cranial morphometric characters. sexual differences were found in taiwanese shrews, but were not evident in those from korea or tsushima. the samples from taiwan had a larger overall cranial size than those from ... | 2003 | 12832832 |
| complete mitochondrial genome of the ussuri white-toothed shrew crocidura lasiura (insectivora, soricidae). | we obtained the complete mitochondrial genome of the ussuri white-toothed shrew crocidura lasiura (insectivora, soricidae) at 17 362 base pairs (bp) containing 13 protein-coding genes, two ribosomal rnas, 22 transfer rnas, and a non-coding control region. its gene order is identical to that of other vertebrates. several repeat elements were identified in the non-coding control region (d-loop). phylogenetic tree using mt protein-coding gene sequences showed that c. lasiura was closely related to ... | 2017 | 26710936 |
| long-term data from a small mammal community reveal loss of diversity and potential effects of local climate change. | climate change affects distribution and persistence of species. however, forecasting species' responses to these changes requires long-term data series that are often lacking in ecological studies. we used 15 years of small mammal trapping data collected between 1978 and 2015 in 3 areas at doñana national park (southwest spain) to (i) describe changes in species composition and (ii) test the association between local climate conditions and size of small mammal populations. overall, 5 species wer ... | 2017 | 29492011 |
| phylogeography of the asian lesser white-toothed shrew, crocidura shantungensis, in east asia: role of the korean peninsula as refugium for small mammals. | many peninsulas in the temperate zone played an important role as refugia of various flora and fauna, and the southern korean peninsula also served as a refugium for many small mammals in east asia during the pleistocene. the asian lesser white-toothed shrew, crocidura shantungensis, is a widely distributed species in east asia, and is an appropriate model organism for exploring the role of the korean peninsula as a refugium of small mammals. here, we investigated phylogenetic relationships and ... | 2018 | 29441472 |
| vocal development during postnatal growth and ear morphology in a shrew that generates seismic vibrations, diplomesodon pulchellum. | the ability of adult and subadult piebald shrews (diplomesodon pulchellum) to produce 160hz seismic waves is potentially reflected in their vocal ontogeny and ear morphology. in this study, the ontogeny of call variables and body traits was examined in 11 litters of piebald shrews, in two-day intervals from birth to 22 days (subadult), and ear structure was investigated in two specimens using micro-computed tomography (micro-ct). across ages, the call fundamental frequency (f0) was stable in squ ... | 2015 | 26112702 |
| does shape co-variation between the skull and the mandible have functional consequences? a 3d approach for a 3d problem. | morpho-functional patterns are important drivers of phenotypic diversity given their importance in a fitness-related context. although modularity of the mandible and skull has been studied extensively in mammals, few studies have explored shape co-variation between these two structures. despite being developmentally independent, the skull and mandible form a functionally integrated unit. in the present paper we use 3d surface geometric morphometric methods allowing us to explore the form of both ... | 2013 | 23964811 |
| mediterranean populations of the lesser white-toothed shrew (crocidura suaveolens group): an unexpected puzzle of pleistocene survivors and prehistoric introductions. | an earlier study revealed the strong phylogeographical structure of the lesser white-toothed shrew (crocidura suaveolens group) within the northern palaearctic. here, we aim to reconstruct the colonization history of mediterranean islands and to clarify the biogeography and phylogeographical relationships of the poorly documented middle east region with the northern palaearctic. we performed analyses on 998-bp-long haplotypes of the mitochondrial cytochrome b gene of 143 samples collected around ... | 2007 | 17688544 |
| comparative fine structure of the epididymal spermatozoa from three korean shrews with considerations on their phylogenetic relationships. | this study examined the fine structures of epididymal spermatozoa on the lesser white-toothed shrew (crocidura suaveolens), the japanese white-toothed shrew (c. dsinezumi) and the big white-toothed shrew (c. lasiura) belonging to the subfamily crocidurinae living in korea. in the spermatozoa of c. suaveolens, the head has a large acrosome, a smooth inner acrosomal membrane and a wavy, finger-like, electron-dense apical body. the neck has a solid proximal centriole that is filled with electron-de ... | 2006 | 16972552 |
| breeding system and genetic variance in the monogamous, semi-social shrew, crocidura russula. | the population-genetic consequences of monogamy and male philopatry (a rare breeding system in mammals) were investigated using microsatellite markers in the semisocial and anthropophilic shrew crocidura russula. a hierarchical sampling design over a 16-km geographical transect revealed a large genetic diversity (h = 0.813) with significant differentiation among subpopulations (fst= 5-6%), which suggests an exchange of 4.4 migrants per generation. demic effective-size estimates were very high, d ... | 1998 | 28565220 |
| demodex foveolator (acariformes: demodecidae) from crocidura suaveolens (soricomorpha: soricidae) – the second observation worldwide, and a checklist of the demodecid mites of soricomorphs | thus far, only six species of parasitic mites of the demodecidae family have been recorded in hosts from the soricomorpha: two from the common shrew (sorex araneus), two from the mediterranean water shrew (neomys anomalus), one from the lesser white-toothed shrew (crocidura suaveolens) and one from the european mole (talpa europaea). the present study describes the identification of demodex foveolator in c. suaveolens from the area of poland (the wielkopolska region). this is only the second rec ... | 2019 | 32191421 |
| characteristics of muscle fiber-type distribution in moles. | moles are a strictly fossorial soricomorpha species and possess a suite of specialized adaptations to subterranean life. however, the contractile function of skeletal muscles in moles remains unclear. we compared muscle fiber-type distribution in two mole species (the large japanese mole and lesser japanese mole) with that in four other soricomorpha species that are semi-fossorial, terrestrial, or semi-aquatic (the japanese shrew-mole, house shrew, japanese white-toothed shrew, and japanese wate ... | 2019 | 30376699 |
| protocol for the reconstruction of micromammals from fossils. two case studies: the skulls of beremendia fissidens and dolinasorex glyphodon. | we have developed a protocol for reconstructing 3d models of the skulls of extinct species of small mammals. for the first time, the reconstruction uses fragments of fossils from a mixture of different specimens and from related extant species. we use free software and commercial computers to make the process reproducible and usable for the scientific community. we present a semi-quantitative protocol to face the problem of making 3d reconstructions of fossil species that are incomplete in the f ... | 2019 | 30893322 |
| borna disease outbreak with high mortality in an alpaca herd in a previously unreported endemic area in germany. | borna disease virus 1 (bodv-1) is the causative agent of borna disease, an often fatal neurologic condition of domestic mammals, including new world camelids, in endemic areas in central europe. recently, bodv-1 gained further attention by the confirmation of fatal zoonotic infections in humans. although borna disease and bodv-1 have been described already over the past decades, comprehensive reports of borna disease outbreaks in domestic animals employing state-of-the-art diagnostic methods are ... | 2020 | 32223069 |
| low prevalence of borna disease virus 1 (bodv-1) igg antibodies in humans from areas endemic for animal borna disease of southern germany. | borna disease virus-1 (bodv-1) was recently discovered as cause of severe and often fatal encephalitis in humans. bodv-1 is known to cause neurological disease in horses and sheep mainly in south and central germany. the virus is maintained in bicolored white-toothed shrews (crocidura leucodon). the incidence of infection and risk factors in humans are completely unresolved. veterinarians may be disproportionally bodv-1-exposed through contact to animals not recognized to be bodv-1 infected. we ... | 2019 | 31882942 |
| demodex foveolator sp. n. (acari: demodicidae), a new epidermis-dwelling parasite of crocidura suaveolens (pallas, 1821). | a new species, demodex foveolator, is described in all stages of the life cycle from the lesser white-toothed shrew, crocidura suaveolens (pallas, 1821). the species inhabits epidermal pits and apparently is a low-grade pathogen. a suggested trait of structural adaptations of epithelia-dwelling demodicids to their habitats is briefly discussed. | 1984 | 6714845 |
| lethal disease in infant and juvenile syrian hamsters experimentally infected with imjin virus, a newfound crocidurine shrew-borne hantavirus. | to gain insights into the pathogenicity of imjin virus (mjnv), a newfound hantavirus isolated from the ussuri white-toothed shrew (crocidura lasiura), groups of syrian hamsters (mesocricetus auratus) of varying ages (<1, 5, 10, 14, 21, 35 and 56 days) were inoculated by the intraperitoneal route with 1000 pfu of mjnv strains 04-55 and 05-11. mjnv-infected syrian hamsters, aged 21 days or less, exhibited reduced activity, weight loss, respiratory distress, hind-limb paralysis and seizures. death ... | 2015 | 26371066 |
| quadricuspid aortic valves in syrian hamsters and their formation according to current knowledge on valvulogenesis. | occurrence of quadricuspid aortic valves has been reported in humans, in nine dogs and in a greater white-toothed shrew. moreover, two cases of developing aortic valves with four anticipated leaflets have been described in syrian hamster embryos. currently, however, no case of quadricuspid aortic valve in adult hamsters has been recorded. the aim here is to present four adults of this rodent species, two of them with unequivocally quadricuspid aortic valves and the other two with quadricuspid-li ... | 2015 | 25854086 |
| ultrastructure of digenean trematode eggs (platyhelminthes: neoophora): a review emphasizing new comparative data on four european microphalloidea. | despite their tremendous diversity and their medical and veterinary importance, details of egg ultrastructure among the digenean trematodes has been studied rather little. the available literature is spread over several decades and several species, but has not been adequately reviewed to reveal patterns of similarity and divergence. we present this review to synthesize and analyse what is known from the available literature reporting studies using both transmission electron microscopy (tem) and ... | 2018 | 29351080 |
| geographical distribution of ljungan virus in small mammals in europe. | ljungan virus (lv), which belongs to the parechovirus genus in the picornaviridae family, was first isolated from bank voles (myodes glareolus) in sweden in 1998 and proposed as a zoonotic agent. to improve knowledge of the host association and geographical distribution of lv, tissues from 1685 animals belonging to multiple rodent and insectivore species from 12 european countries were screened for lv-rna using reverse transcriptase (rt)-pcr. in addition, we investigated how the prevalence of lv ... | 2020 | 32487013 |
| chromosomal differentiation in genetically isolated populations of the marsh-specialist crocidura suaveolens (mammalia: soricidae). | the genus crocidura represents a remarkable model for the study of chromosome evolution. this is the case of the lesser white-toothed shrew (crocidura suaveolens), a representative of the palearctic group. although continuously distributed from siberia to central europe, c. suaveolens is a rare, habitat-specialist species in the southwesternmost limit of its distributional range, in the gulf of cádiz (iberian peninsula). in this area, c. suaveolens is restricted to genetically isolated populatio ... | 2020 | 32131436 |
| parasitic infections of bicoloured white-toothed shrew (crocidura leucodon) from dasht-e-razan, western iran. | the prevalence and intensity of endo and ectoparasites in shrews inhabiting in the dasht-e razan of hamedan province, iran, were determined in this study. | 2017 | 28761469 |
| multilocus phylogeny and cryptic diversity of white-toothed shrews (mammalia, eulipotyphla, crocidura) in china. | crocidura, the most speciose mammalian genus, occurs across much of asia, europe and africa. the taxonomy of chinese representatives has been studied primarily based on cursory morphological comparisons and their molecular phylogenetic analyses remain unexplored. in order to understand the phylogeny of this group in china, we estimated the first multilocus phylogeny and conducted species delimitation, including taxon sampling throughout their distribution range. | 2020 | 32059644 |
| population dynamics of small endotherms under global change: greater white-toothed shrews crocidura russula in mediterranean habitats. | small endotherms would be especially exposed to main global change drivers (habitat and climate changes) but would also be able to withstand them by adjusting population dynamics locally to changing climate- and habitat-driven food and predation conditions. we analyse the relative importance of changes in climate (mean and variability, including relevant time-lags) and habitat conditions on the abundance, age structure and growth rate of mediterranean populations of a small endotherm, the greate ... | 2020 | 31810679 |
| the variable heartbeat of japanese moles (mogera spp.). | this report demonstrates the variable cardiac rhythm in two species of subterranean mole, the large japanese mole (mogera wogura) and the lesser japanese mole (mogera imaizumii). the phenomenon was revealed using x-ray videos of m. wogura and investigated in detail using electrocardiogram (ecg) traces recorded with implanted electrodes in this species and m. imaizumii. cessation of heartbeat and extended r-r intervals were observed in the ecgs from both species during short bouts of rest in wake ... | 2019 | 31612249 |
| new world camelids are sentinels for the presence of borna disease virus. | borna disease (bd), a frequently fatal neurologic disorder caused by borna disease virus 1 (bodv-1), has been observed for decades in horses, sheep, and other mammals in certain regions of europe. the bicoloured white-toothed shrew (crocidura leucodon) was identified as a persistently infected species involved in virus transmission. recently, bodv-1 attracted attention as a cause of fatal encephalitis in humans. here, we report investigations on bodv-1-infected llamas from a farm in a bd endemic ... | 2021 | 33501762 |
| detection of rabbit hemorrhagic disease virus gi.2/rhdv2/b in the mediterranean pine vole ( microtus duodecimcostatus) and white-toothed shrew ( crocidura russula). | the european wild rabbit ( oryctolagus cuniculus) is a key prey species on the iberian peninsula, and several predator species that are at risk of extinction are dependent on them as prey. a new rabbit hemorrhagic disease (rhd) virus genotype (gi.2/rhdv2/b) emerged in 2010 and posed a threat to wild rabbit populations. during a survey aimed at investigating rhd epidemiology in wild rabbits, gi.2/rhdv2/b was detected by duplex real-time pcr in carcasses of one mediterranean pine vole ( microtus d ... | 2019 | 30226801 |
| molecular survey for cyst-forming coccidia (toxoplasma gondii, neospora caninum, sarcocystis spp.) in mediterranean periurban micromammals. | rodents and other micromammals constitute important reservoirs of infectious diseases; their role in the life cycle of apicomplexan parasites such as toxoplasma gondii, neospora caninum, and sarcocystis spp. still needs clarification. in the present study, we analyzed by pcr and sanger sequencing methods the presence of specific parasite dna within brain and heart tissues of 313 individuals of five synanthropic small mammal species (apodemus sylvaticus, mus spretus, m. musculus, rattus rattus, a ... | 2020 | 32588173 |
| molecular investigation of vector-borne parasites in wild micromammals, barcelona (spain). | information about the role of micromammals in the epidemiology of leishmania infantum and babesia sp. in southern europe is scarce. wild micromammals were captured in natural areas in the barcelona province (ne spain) in 2011 and analysed by real-time pcr for the presence of dna of piroplasmida (n = 253) and leishmania infantum (n = 166). the wood mouse (apodemus sylvaticus) was the most abundant species, but all specimens tested negative for l. infantum, for which two out of 15 (13.3%) white-to ... | 2018 | 29943318 |