Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
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| unusual distribution pattern of telomeric repeats in the shrews sorex araneus and sorex granarius. | sorex araneus and sorex granarius are sibling species within the sorex araneus group with karyotypes composed of almost identical chromosome arms. s. granarius has a largely acrocentric karyotype, while, in s. araneus, various of these acrocentrics have combined together by robertsonian (rb) fusions to form metacentrics, with the numbers and types of metacentrics differing between chromosomal races. our studies on telomeric sequences in s. araneus and s. granarius revealed differences between ch ... | 2005 | 16170626 |
| sex chromosome meiotic drive in hybrid males of the common shrew (sorex araneus). | patterns of sex chromosome segregation in six homozygous males of the common shrew (sorex araneus linnaeus, 1758) belonging to two chromosomal races, as well as in 16 interracial hybrids were studied. based on their karyotypes the hybrids can be subdivided into two groups: (a) complex heterozygotes, which form meiotic quadrivalents in chain and chain + ring configurations, and (b) complex heterozygotes, which form meiotic pentavalents in chain configurations. random (1:1) segregation of sex chro ... | 2005 | 19058534 |
| development and phenotypic correlations: the evolution of tooth shape in sorex araneus. | do morphogenetic processes cause common patterns of phenotypic covariation, and do those patterns evolve over microevolutionary timescales? evolution of molar shape variance-covariance (p) matrixes was studied in five populations of the common shrew, sorex araneus. p matrix evolution was assessed using matrix correlation, matrix disparity, and common principal component analysis (cpca). significant changes in covariance structure were found among the populations, but the differences were small. ... | 2005 | 15642087 |
| predator-induced synchrony in population oscillations of coexisting small mammal species. | comprehensive analyses of long-term (1977-2003) small-mammal abundance data from western finland showed that populations of microtus voles (field voles m. agrestis and sibling voles m. rossiaemeridionalis) voles, bank (clethrionomys glareolus) and common shrews (sorex araneus) fluctuated synchronously in 3 year population cycles. time-series analyses indicated that interspecific synchrony is influenced strongly by density-dependent processes. synchrony among microtus and bank voles appeared addi ... | 2005 | 15695211 |
| lack of mitochondrial dna divergence between chromosome races of the common shrew, sorex araneus, in sweden. implications for interpreting chromosomal evolution and colonization history. | the common shrew, sorex araneus, has one of the most variable karyotypes among mammals, displaying numerous chromosome races throughout its distribution. the six chromosome races present in sweden can be categorized in two different karyotypic groups, the west and north european karyotypic groups (western and northern). three races belonging to the western group are considered to have arisen through whole arm reciprocal translocations (warts). race formation through this process requires a bottl ... | 2005 | 16029472 |
| metals distribution and interactions in tissues of shrews (sorex spp.) from copper- and zinc-contaminated areas in poland. | to assess the risk from heavy metal accumulation to insectivorous species exposed to different pollutants, shrews [sorex araneus (linnaeus 1758) and sorex minutus (linnaeus 1766)] were collected in the olkuski ore region (oor; a zn and cd smelter area), legnicko-głogowski copper mine region (lgcr; a copper ore-mining area), and białowieza forest (bf; a control area). a few sites were chosen in each region and a total of 57 animals were collected from them. the liver and kidneys were dissected fr ... | 2005 | 16091604 |
| living at the physiological limits: field and maximum metabolic rates of the common shrew (sorex araneus). | shrews (genus sorex, small insectivorous mammals) are well known for their extremely high basal metabolic rates (bmrs) even when corrected for their small body size. we measured energy expenditure of the common shrew (sorex araneus) under natural conditions (field metabolic rate [fmr]) by doubly labeled water method to test whether fmr is proportional to high bmr in this species. the study was performed in summer in northeastern poland. in addition to the fmr, we also measured maximum metabolic ... | 2005 | 16096983 |
| ural chromosomal serov race of common shrew sorex araneus l. (insectivora, mammalia) that inhabits polydominant deep coniferous taiga in the north of european russia. | 2005 | 16405116 | |
| no apparent reduction of gene flow in a hybrid zone between the west and north european karyotypic groups of the common shrew, sorex araneus. | the common shrew, sorex araneus, exhibits an unusually high level of karyotypic variation. populations with identical or similar karyotypes are defined as chromosome races, which are, in turn, grouped into larger evolutionary units, karyotypic groups. using six microsatellite markers, we investigated the genetic structure of a hybrid zone between the sidensjö and abisko chromosome races, representatives of two distinct karyotypic groups believed to have been separated during the last glacial max ... | 2004 | 15078456 |
| [structure of parasitic arthropod communities in forest small mammals]. | species composition and structure of ectoparasite arthropod communities were examined all year round six years in the bank vole clethrionomys glareolus, ural wood mouse apodemus uralensis and the common shrew sorex araneus in forests of the ilmen'-volkhov depression. in total, 4500 host samples have been examined and all ectoparasites have been collected. the species composition of ectoparasite community in small mammal species are as follows: the bank vole--29 insect, tick and mite species, the ... | 2004 | 15656091 |
| [seasonal dynamics of a flea number (siphonaptera) on the common shrew (sorex araneus) in the north part of the novgorod oblast]. | in the course of 5-year stationary investigations of the common shrew sorex araneus in the north part of the novgorod oblast, 12 flea species have been recorded on this host. among them, palaeopsylla soricis and doratopsilla dasycnema are specific parasites of small insectivores, including the common shrew. hystrichopsylla talpae is a polyxenous species, parasitizing both rodents and insectivores. other 9 flea species are not common parasites of s. araneus and apparently have come to this host f ... | 2004 | 15656093 |
| scanning electron microscopy of lingual papillae in the common shrew, sorex araneus, l. | the dorsal surface of the tongue of the adult common shrew (sorex araneus l.) was examined by scanning electron microscopy. as in the other insectivores, three types of lingual papillae were observed: filiform, fungiform and vallate papillae. the filiform papillae represented the most numerous type of lingual papillae. the characteristic feature of the filiform papillae, covering the apex and corpus of the tongue, is the two processes tilted to the root of the tongue. the filiform papillae on th ... | 2004 | 15352882 |
| 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 |
| giant mitochondria in the retina cone inner segments of shrews of genus sorex (insectivora, soricidae). | the retinas of three species of shrews (sorex araneus, s. coronatus, and s. minutus) were analyzed. two kinds of photoreceptors were identified according to (among other characteristics) the traits of the mitochondria of their inner segments. the rod inner segments contained several round or oval mitochondria distributed longitudinally inside the ellipsoid. the cone inner segment showed a few mitochondria, which we classified as megamitochondria (maximum length = 4.22 microm in s. araneus, 5.68 ... | 2003 | 12740941 |
| [structure and seasonal dynamics of an ectoparasite community on the common shrew (sorex araneus) in the il'men'-volkhov lowland]. | species composition, seasonal dynamics, and a load of ectoparasites per individual and population of the common shrew sorex araneus have been examined in coniferous and mixed forests of the ilmen'-volkhov lowland (a neighbourhood of oskuy village, chudovo district, novgorod province) during the period 1999-2003. trapping of mammals was carried monthly, with exception of few accidental gaps. the gero traps were used for catching micromammalian hosts. the lines of trap were checked 2 times a day, ... | 2003 | 14964844 |
| [biotope distribution of cestodes from the common shrew sorex araneus in southern karelia]. | specific features in the formation of cestode species composition in the common shrew in different biotopes have been analyzed. four categories of parasites have been recognized depending on a degree of dominance: dominants (neoskrjabinolepis singularis, molluscotaenia crassiscolex), subdominants (ditestolepis diaphana), adominants a (staphylocystis furcata, vigisolepis spinulosa, adominants b (hymenolepis scutigera, dilepis undula, d. secunda, taenia mustelae). a significant similarity was disc ... | 2003 | 14964848 |
| [puumala and dobrava viruses in the northeastern and central regions of bosnia]. | bosnia and herzegovina has been known as a highly endemic region for hantavirus infections for more than 50 years. previous studies have shown that at least two different hantaviruses, the murine dobrava (dob) and avricoline puumala (puu) viruses, each carried by a different rodent species, have been circulating in the area. however, there is little information on rodent population density fluctuations in bosnia over the past years as well as on the ratio of puumala to dobrava infection in human ... | 2003 | 15011464 |
| bartonella infection in sylvatic small mammals of central sweden. | sylvatic small mammals were captured in rural habitats near uppsala, sweden, to measure the prevalence of bartonella infections, characterize bacterial isolates and identify their host range, and increase our understanding of host-pathogen ecology. during 7 nights of trapping at 3 localities, 236 small mammals were captured (trap success 30%). bartonella were isolated from bloods of apodemus flavicollis (19 of 110 tested), apodemus sylvaticus (6/25), clethrionomys glareolus (9/60), microtus agre ... | 2003 | 12613756 |
| the evolutionary history of the two karyotypic groups of the common shrew, sorex araneus, in poland. | genetic variability within and among two karyotypic groups and five chromosome races of the common shrew (sorex araneus) in poland was assayed by sequencing a 1023 bp part of the cytochrome b gene (mtdna) from 28 individuals. thirty-four variable positions defined 21 distinct haplotypes with a maximum sequence divergence of 0.88%. no significant differentiation in the cytochrome b gene between western and eastern karyotypic groups was found. haplotype diversity estimates within the races and gro ... | 2002 | 11920129 |
| phylogeographical structure, postglacial recolonization and barriers to gene flow in the distinctive valais chromosome race of the common shrew (sorex araneus). | using one male-inherited and eight biparentally inherited microsatellite markers, we investigate the population genetic structure of the valais chromosome race of the common shrew (sorex araneus) in the central alps of europe. unexpectedly, the y-chromosome microsatellite suggests nearly complete absence of male gene flow among populations from the st-bernard and simplon regions (switzerland). autosomal markers also show significant genetic structuring among these two geographical areas. isolati ... | 2002 | 11972764 |
| fiber capillarization relative to mitochondrial volume in diaphragm of shrew. | the objective was to examine fiber capillarization in relation to fiber mitochondrial volume in the highly aerobic diaphragm of the shrew, the smallest mammal. the diaphragms of four common shrews [sorex araneus; body mass, 8.2 +/- 1.3 (se) g] and four lesser shrews (sorex minutus, 2.6 +/- 0.1 g) were perfusion fixed in situ, processed for electron microscopy, and analyzed by morphometry. capillary length per fiber volume was extremely high, at values of 8,008 +/- 1,054 and 12,332 +/- 625 mm(-2) ... | 2002 | 12070224 |
| the cerebellum at birth in therian mammals, with special reference to rodents. | the stage of cerebellar development at birth was assessed in 23 species of placental mammals. serial histological sections were examined and five stages in the differentiation of the cerebellar cortical layers were defined. a wide diversity of conditions at birth was found. the available evidence (after parsimony reconstruction) suggests that the last common ancestor of placentals was born with an altricial cerebellum in which the molecular layer was just present between the external granular la ... | 2002 | 12119530 |
| alps, genes, and chromosomes: their role in the formation of species in the sorex araneus group (mammalia, insectivora), as inferred from two hybrid zones. | during the pleistocene glaciations, the alps were an efficient barrier to gene flow between isolated populations, often leading to allopatric speciation. afterwards, the alps strongly influenced the post-glacial recolonization of europe and represent a major suture zone between differentiated populations. two hybrid zones in the swiss and french alps between genetically and chromosomally well-differentiated species-the valais shrew, sorex antinorii, and the common shrew, s. araneus-were studied ... | 2002 | 12438784 |
| sex chromosome aneuploidy in wild small mammals. | we describe four examples of the xo condition in wild mammals. one xo house mouse (mus musculus domesticus) was caught in nature and subsequently gave birth to three litters in captivity, confirming for wild mice the fertility observed for xo laboratory mice. two other xo house mice were produced from laboratory crosses of wild-caught mice. an immature xo common shrew (sorex araneus) was caught in nature; this appears to be the first xo recorded in the order insectivora. we collected data from r ... | 2002 | 12438805 |
| the role of glacial epochs in the formation of chromosomal polymorphism in the common shrew sorex araneus l. (insectivora, mammalia). | 2002 | 12469415 | |
| a population of the common shrew sorex araneus l. (insectivora, mammalia) of the sok race inhabiting a patch of forest at the southern boundary of the species range. | 2002 | 12474764 | |
| meiotic studies of male common shrews (sorex araneus l.) from a hybrid zone between chromosome races. | thirty-three adult male common shrews (sorex araneus l.) were collected from a hybrid zone between two chromosomal races that differed in robertsonian metacentrics. anaphase i nondisjunction frequencies were estimated on the basis of metaphase ii counts. riv and cv complex heterozygotes (four-element rings and five-element chains at meiosis i, respectively) had substantially higher nondisjunction rates than homozygotes and simple robertsonian heterozygotes. however, at least in the case of riv-f ... | 2002 | 12438778 |
| [intraspecies phylogenetic connections in sorex araneus l.: a southern baltic subgroup of chromosome races]. | results of chromosome g-banding were used to identify two new karyotypic races of the common shrew (sorex araneus l.) in the european part of russia. the chromosomal diagnosis of race st. petersburg included five metacentrics (hk, ip, jl, mq, and nr) and two acrocentrics (g and o) (2na = 20); the diagnosis of race west dvina included six metacentrics (gm, hk, ip, jl, no, and qr) (2na = 18). the phylogenetic significance of the chromosomal markers gm, hk, and ip is considered and the possibility ... | 2002 | 11852798 |
| lack of a distinct gradient in biomarker responses in small mammals collected at different distances from a highway. | this study describes biomarker effects in small mammals exposed to traffic emissions. animals were collected at 10-50 m (site 1), 150-200 m (site 2), and 5 km (site 3) from a very busy highway (a2). to distinguish between routes of exposure, strictly carnivorous common shrews ( sorex araneus) and predominantly herbivorous bank voles ( clethrionomys glareolus) were collected. as a measure of exposure to polycyclic aromatic hydrocarbons (pahs), aromatic dna adduct levels were determined by (32)p-p ... | 2002 | 12202932 |
| changes in individual quality during a 3-year population cycle of voles. | in small mammal populations with multiannual oscillations in density, the occurrence of large individuals in the peak phase (the "chitty effect") is a typical feature, but mechanisms behind this phenomenon have remained unclear. we analysed long-term data sets collected in western finland between 1984 and 1992 to: (1) find out how the body size and body condition of voles (microtus agrestis, m. rossiaemeridionalis, clethrionomys glareolus) and shrews (sorex araneus) was associated with the 3-yea ... | 2002 | 28547147 |
| short interspersed elements (sines) from insectivores. two classes of mammalian sines distinguished by a-rich tail structure. | four trna-related sine families were isolated from the genome of the shrew sorex araneus (sor element), mole mogera robusta (tal element), and hedgehog mesechinus dauuricus (eri-1 and eri-2 elements). each of these sines families is specific for a single insectivora family: sor, for soricidae (shrews); tal, for talpidae (moles and desmans); eri-1 and eri-2, for erinaceidae (hedgehogs). there is a long polypyrimidine region (tc-motif) in tal, eri-1, and eri-2 elements located immediately upstream ... | 2001 | 11668393 |
| on morphological clocks and paleophylogeography: towards a timescale for sorex hybrid zones. | phylogeography--the study of within-species phylogenetic and geographic divergence--has been primarily the domain of molecular evolutionists because molecular markers record population structure on smaller scales than do traditional morphological traits. but when geometric morphometrics are combined with distance-based phylogenetics molar shape divergence appears to record population-level phylogeny, a fact that allows extant and fossil populations to be combined in a single phylogeographic stud ... | 2001 | 11838775 |
| helminth fauna of the common shrew (sorex araneus linnaeus, 1758) in ecosystems of belorussian polesie transformed by reclamation. | 2001 | 11570570 | |
| [chromosomal evolution of the common shrew sorex araneus l.from the southern ural and siberia in the postglacial period]. | this paper summarizes a series of studies on chromosomal geography of the common shrew sorex araneus l. in siberia and the southern urals. chromosomal races inhabiting the southern urals and the western siberian plain sequentially replace each other in the latitudinal direction. in this region, karyotypes of each two adjacent races differ from each other by a single whole-arm reciprocal translocation. in the eastern siberian branch, the neighboring races differ mainly in the number or set of met ... | 2001 | 11421117 |
| importance of surveillance of tularemia natural foci in the known endemic area of central europe, 1991-1997. | marked activation of natural foci of tularemia in the known endemic area of central europe, comprising the borderland of slovakia, austria and the czech republic, led to an epidemic outbreak in western slovakia and an increase in the number of human tularemia cases in the adjoining regions of northeastern austria and southern moravia from 1995 to 1997. the aim of this paper was to present the results of a longitudinal study on the prevalence of infection with francisella tularensis in small mamm ... | 2001 | 11467089 |
| [involvement of the common shrew, sorex araneus (insectivora, soricidae), in circulation of the tick-borne encephalitis virus in south-western siberia]. | we presented the data on the abundance of immature instars of the taiga tick ixodes persulcatus schuize on the common shrews sorex araneus l. in natural foci of tick-borne encephalitis in the south of western siberia. basing on the results of virological and serological studies we demonstrated a low effectiveness of this host species as a donor of disease agent strains, which are predominant in the territory under study, for ticks feeding on shrews. the analysis of samples taken from the young s ... | 2001 | 11871252 |
| pcr detection of granulocytic ehrlichiae in ixodes ricinus ticks and wild small mammals in western switzerland. | the presence of granulocytic ehrlichiae was demonstrated by pcr in ixodes ricinus ticks and wild small mammals in switzerland in two areas of endemicity for bovine ehrlichiosis. six ticks (three females and three nymphs) (1.4%) of 417 i. ricinus ticks collected by flagging vegetation contained ehrlichial dna. a total of 201 small mammals from five species, wood mouse (apodemus sylvaticus), yellow-necked mouse (apodemus flavicollis), earth vole (pitymys subterraneus), bank vole (clethrionomys gla ... | 2000 | 10698987 |
| findings of mycobacteria in insectivores and small rodents. | the organs of 30 insectivorous mammals and 62 rodents from areas inhabited by people or livestock where cattle paratuberculosis or mycobacterial infections of swine had been found to occur were examined by cultivation during the monitoring of occurrence and spread of mycobacterioses in cattle and swine. mycobacteria were found in the organs of 3 insectivores (10%) and 6 rodents (9.7%). mycobacterium chelonae was isolated from the organs of the lesser white-toothed shrew (crocidura suaveolens) an ... | 2000 | 11271823 |
| microsatellites can be misleading: an empirical and simulation study. | it has been long recognized that highly polymorphic genetic markers can lead to underestimation of divergence between populations when migration is low. microsatellite loci, which are characterized by extremely high mutation rates, are particularly likely to be affected. here, we report genetic differentiation estimates in a contact zone between two chromosome races of the common shrew (sorex araneus), based on 10 autosomal microsatellites, a newly developed y-chromosome microsatellite, and mito ... | 2000 | 11005307 |
| the phylogenetic position of the talpidae within eutheria based on analysis of complete mitochondrial sequences. | the complete mitochondrial (mt) genome of the mole talpa europaea was sequenced and included in phylogenetic analyses together with another lipotyphlan (insectivore) species, the hedgehog erinaceus europaeus, and 22 other eutherian species plus three outgroup taxa (two marsupials and a monotreme). the phylogenetic analyses reconstructed a sister group relationship between the mole and fruit bat artibeus jamaicensis (order chiroptera). the talpa/artibeus clade constitutes a sister clade of the ce ... | 2000 | 10666706 |
| a comparison of spermatogenesis in homozygotes, simple robertsonian heterozygotes and complex heterozygotes of the common shrew (sorex araneus l.). | spermatogenesis was studied in 56 shrews (sorex araneus l.) from two chromosomal hybrid zones in poland. the hybrid zones were formed between chromosome races that differed in robertsonian metacentrics. shrews were compared in four classes: homozygotes, simple robertsonian heterozygotes, complex heterozygotes forming four-element rings in meiosis i, and complex heterozygotes forming four- or five-element chains. there was a significant effect of karyotype on the level of germ-cell death and chai ... | 2000 | 10849082 |
| do riverine barriers, history or introgression shape the genetic structuring of a common shrew (sorex araneus) population? | the common shrew (sorex araneus) is subdivided into numerous chromosome races. the valais and cordon chromosome races meet and hybridize at a mountain river in les houches (french alps). significant genetic structuring was recently reported among populations found on the valais side of this hybrid zone. in this paper, a phylogenetic analysis and partial mantel tests are used to investigate the patterns and causes of this structuring. a total of 185 shrews were trapped at 12 localities. all indiv ... | 1999 | 10469203 |
| seasonal dynamics of pneumocystis carinii in the field vole, microtus agrestis, and in the common shrew, sorex araneus, in finland. | seasonal dynamics of pneumocystis carinii in the field vole, microtus agrestis, and in the common shrew, sorex araneus, were investigated in southern and central finland by microscopical examination of methenamine silver-stained tissue sections. in both host species at both localities the number of p. carinii cyst forms was highest in late autumn (november). in s. araneus, prevalence was higher than in m. agrestis during all seasons. none of the animals was heavily infected or apparently ill, an ... | 1999 | 10070655 |
| emmonsiosis of wild rodents and insectivores in czechland. | adiaspores of the fungus emmonsia crescens were detected microscopically in the lung tissue of 13% of 10.081 small mammals belonging to 24 species examined in 14 areas of the czech republic between 1986 and 1997; 441/1.934 (23%) clethrionomys glareolus, 1/6 (17%) arvicola terrestris, 357/2.172 (16%) apodemus flavicollis, 220/1.981 (11%). a sylvaticus, 23/265 (9%) a. microps, 11/81 (14%) microtus subterraneus, 93/1.275 (7%) m. arvalis, 98/1.439 (7%) m. agrestis, 1/3 (33%) ondatra zibethicus, 1/1 ... | 1999 | 10231750 |
| [karyologic differentiation in the common shrew sorex araneus l. from the upper and middle volga river basin (insectivora, mammalia)]. | 1999 | 10420262 | |
| [chromosomal localization of 10 genes on the cytogenetic map of the common shrew sorex araneus l]. | using a panel of hybrid clones (common shrew--chinese hamster and common shrew--mouse), the syntheny and localization of the following genes was determined: genes for alpha-galactosidase (gla), acid phosphatase (acp1), and phosphoglycerate kinase (pgk1) on chromosome de; adenosine kinase (adk) and glucuronidase 2 (gus2) on chromosome ik; glutamic-oxaloacetic transaminase 2 (got2) and peptidase d (pepd) on chromosome hn; and glyoxalase 1 (glo1) and phosphoglucomutase 2 (pgm2) on chromosome go. ge ... | 1999 | 10420272 |
| serosurvey for orthopoxviruses in rodents and shrews from norway. | two hundred and twenty one blood samples representing eight different rodent species and the common shrew (sorex araneus), collected in norway between 1993 and 1995, were examined for anti-orthopoxvirus antibodies by a competition enzyme linked imunnosorbent assay (elisa) and, when possible, an indirect immunofluorescence assay. the serological results indicated that the bank vole (clethrionomys glareolus), woodmouse (apodemus sylvaticus) and norway lemming (lemmus lemmus) may be reservoir speci ... | 1998 | 9577770 |
| muscle capillary supply in hind limb and diaphragm of the common shrew (sorex araneus). | shrew species of the subfamily soricinae have unusually high metabolic rates when compared to crocidurinae shrews and other similar-sized mammals. the aim of this study was to clarify whether the high basal metabolic rate of soricinae shrews is reflected in a high capillary density in their muscles. to this end, the capillary supply of four limb muscles and diaphragm of the common shrew (sorex araneus) was quantified from cross-sectioned muscles. the capillary densities of the limb muscles were ... | 1998 | 9646505 |
| zoo-fish analysis in insectivores: "evolution extols the virtue of the status quo". | in evolutionary terms, insectivores are thought to be close to primates. through zoo-fish analysis using human chromosome-specific painting probes, the syntenic relationship between the human and common shrew, sorex araneus, karyotypes was studied. the human karyotype was found to be conserved in the shrew, with 32 autosomal segments of common synteny. special arrangements, already known from similar studies on other species, were noted: fusions of hsa 16 and 19, hsa 3 and 21, and hsa 14 and 15. ... | 1998 | 9678336 |
| naturally occurring orthopoxviruses: potential for recombination with vaccine vectors. | orthopoxviruses are being increasingly used as live recombinant vectors for vaccination against numerous infectious diseases in humans, domestic animals, and wildlife. for risk assessments and surveillance, information about the occurrence, distribution and ecology of orthopoxviruses in western europe is important but has mainly been based on serological investigations. we have examined kidneys, lungs, spleens, and livers of norwegian small rodents and common shrews (sorex araneus) for the prese ... | 1998 | 9705389 |
| [features of the parasitic system of ixodid ticks--borrelia--small mammals in the russian northwest]. | mammals and ticks was collected in 1995-1997 years in novgorod region from may to september. traps were exposed during 5 consecutive days every month in 4 different biotopes. 928 hosts were captured during three years. 357 larvae and 59 nymphs of ixodes persulcatus, 356 larvae and 71 nymphs of i. trianguliceps were collected. the clethrionomys glareolus and sorex araneus are main hosts of larvae of i. persulcatus and i. trianguliceps. c. glareolus feed 76.2% of i. persulcatus larvae and 25% of i ... | 1998 | 9859127 |
| analysing interspecific associations in parasites: alternative methods and effects of sampling heterogeneity. | the purpose of the present study was (1) to test the ability of six alternative methods to detect random and non-random patterns of overall association in artificial presence/absence data sets, and (2) to analyse overall associations and effects of sampling heterogeneity in four empirical presence/absence data sets of helminths of the common shrew sorex araneus. in the null model, the expected distribution was created by means of a randomisation procedure. application of methods on artificial da ... | 1998 | 28307526 |
| meiotic drive favors robertsonian metacentric chromosomes in the common shrew (sorex araneus, insectivora, mammalia). | meiotic drive has attracted much interest because it concerns the robustness of mendelian segregation and its genetic and evolutionary stability. we studied chromosomal meiotic drive in the common shrew (sorex araneus, insectivora, mammalia), which exhibits one of the most remarkable chromosomal polymorphisms within mammalian species. the open question of the evolutionary success of metacentric chromosomes (robertsonian fusions) versus acrocentrics in the common shrew prompted us to test whether ... | 1998 | 10072577 |
| spermatogenesis in common shrews, sorex araneus, from a hybrid zone with extensive robertsonian polymorphism. | the analysis of the fertility of hybrid and nonhybrid individuals from a chromosomal contact zone gives us the possibility of studying the role of chromosomes in speciation processes. in this study, homozygous, "simple" and "complex" robertsonian heterozygous male common shrews (sorex araneus) from the abisko-sidensjö chromosomal hybrid zone in sweden were analysed. the degree of germ cell death was estimated, sperm counts were performed and the testis and seminal vesicles weighed in each indivi ... | 1998 | 9678351 |
| [chromosomal localization of nine genes in common shrew (sorex araneus)]. | syntheny and localization of the following genes in common shrew sorex araneus were determined: isocitrate dehydrogenase 2 (idh2), acid phosphatase 2 (acp2), glutamine--pyruvate--oxo-acid transaminase (gpt), and inorganic pyrophosphatase (pp) on chromosome ik; adenylate kinases 1 and 3 (ak1 and ak3) on chromosome af; and enolase 1 (eno1) on chromosome jl. two genes were assigned to definite arms: aminoacylase 1 (acy1) to arm p of chromosome mp and glutamic-oxaloacetic transaminase 1 (got1) to ar ... | 1998 | 9589866 |
| [chromosome coupling in robertsonian heterozygotes in common (sorex araneus) and musk (suncus murinus) shrews]. | 1997 | 9376804 | |
| no evidence of sperm selection by female common shrews. | there is currently much interest in the suggestion that females are capable of post-copulatory (or cryptic) choice for male genetic compatibility. here, i investigate this idea using data from mixed-paternity litters of the common shrew (sorex araneus). females of this species are highly promiscuous and, in natural populations, regularly incur costs of inbreeding by mating with close relatives. selection should therefore favour female ability for sperm selection on the basis of male relatedness. ... | 1997 | 9364789 |
| [geography of chromosomes of natural populations of the shrews sorex araneus and suncus murinus]. | the geographic distribution of chromosome races of two shrew species (sorex araneus and suncus murinus) was analyzed on the basis of published data and personal results. it was shown that expansion of both species was accompanied by fixation of different chromosome rearrangements (mainly robertsonian translocations) in isolates. chromosome polymorphism studied from the viewpoint of ecology and geography of these species allows reconstruction of their evolutionary history and understanding of the ... | 1997 | 9378305 |
| novosibirsk revisited 24 years on: chromosome polymorphism in the novosibirsk population of the common shrew sorex araneus l. | a robertsonian fusion polymorphism in the common shrew (sorex araneus l.), first described in academgorodok near novosibirsk (western siberia) in 1970-72, was re-examined in 1994-95. the polymorphism in the 1970s involved chromosome arm combinations go, jl, mp and qr, i.e. each of these combinations was present in both a metacentric and a twin-acrocentric state in the population at that time. the twin-acrocentric morph for go occurred at low frequency in 1970-72 and was not observed in 1994-95. ... | 1997 | 9279011 |
| 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 |
| pneumocystis carinii of the common shrew, sorex araneus, shows a discrete phenotype. | we carried out an immunohistological and morphological study on pneumocystis carinii originating from the common shrew, sorex araneus. immunologic properties were studied by applying two commercially available immunofluorescence staining kits with differing developmental form specificity to a lung homogenate. the cyst form-specific staining kit reacted with cysts originating from s. araneus. ultrastructurally this particular antigen epitope specifically deposited on the electron-lucent middle la ... | 1997 | 9109260 |
| lung parasites of shrews from pennsylvania. | we examined lung parasites of three species of soricids, sorex cinereus (n = 58), sorex fumeus (n = 23) and blarina brevicauda (n = 45) collected from pennsylvania (usa), from 1990 to 1995. yeast-like cells of hisfoplasma capsulatum var. capsulatum were found in lung sections stained with grocott's modification of gomori's methenamine silver, periodic acid-schiff, giemsa, and hematoxylin-eosin in two (3%) s. cinereus, eight (35%) s. fumeus and two (4%) b. brevicauda. the number of spores of h. c ... | 1997 | 9131560 |
| robertsonian chromosomal rearrangements in the short-tailed shrew, blarina carolinensis, in western tennessee. | we report significant heterozygosity for numerous robertsonian translocations in the southern short-tailed shrew (blarina carolinensis) in western tennessee. eight robertsonian rearrangements were documented using g-banding techniques that explain the variability in diploid numbers from 46 throughout most of the range of the species to 34-40 in western tennessee. these fusions resulted in the loss of telomere sequences and were not associated with nucleolar organizer regions. when heterozygocity ... | 1997 | 9186509 |
| the impact of chronic radioactive stress on the immuno-physiological condition of small mammals. | the mass of internal organs and cellularity index of thymus and spleen were measured in small mammals inhabiting territories with a low level of chronic irradiation caused by the chernobyl accident. comparing with uncontaminated territories from the same region, bank voles (clethrionomys glareolus) demonstrated an increase in liver and thymus mass and cellularity index of thymus, while sub-adult shrews (sorex araneus) at contaminated territories had larger body mass, heavier spleen, kidney, and ... | 1997 | 9281840 |
| chromosome location of sixteen genes in the common shrew, sorex araneus l. (mammalia, insectivora). | this report extends the genetic map of the common shrew (sorex araneus) by use of a clone panel of shrew-chinese hamster and shrew-mouse hybrid cells (pack et al., 1995; matyakhina et al., 1996). this set of hybrid clones made it possible to assign the shrew genes for isocitrate dehydrogenase 2 (idh2), inorganic pyrophosphatase (pp), glutamicpyruvate transaminase (gpt), adenosine kinase (adk), glucuronidase 2 (gusb) and acid phosphatase 2 (acp2) to chromosome ik; the genes for adenylate kinases ... | 1997 | 9284916 |
| disturbances of the mineral incorporation in various species of mice and shrews in the emission area of a phosphate plant. | the cd emission of a phosphate plant was clearly reflected by the cd status of herbivorous european wood mice and common field voles as well as of european shrews taking in mostly animal food. the antagonistic effect of the emitted cd and mo better available for plants with high ground ph most probably caused the deterioration in the cu status of the animals of both phases in the nutritional chain. the lower ca, p, and mg incorporation with european wood mouse and common field vole within the co ... | 1997 | 9404674 |
| meiosis and fertility in common shrews, sorex araneus, from a chromosomal hybrid zone in central sweden. | adult male common shrews from the uppsala and hällefors robertsonian chromosomal races and hybrids were collected from the area of surahammar in sweden. meiosis and fertility of hybrid (complex heterozygotes) and nonhybrid (homozygotes) individuals were compared based on an analysis of chromosomal interactions and synapsis at pachytene, chiasma characteristics at diakinesis, and germ-cell death. no individuals suffered severe germ-cell loss, and the differences found among the uppsala and hällef ... | 1997 | 9465899 |
| chromosome localization of the gene for growth hormone in the common shrew (sorex araneus). | the chromosome localization of the gene encoding growth hormone (gh) was determined by southern blotting of dna obtained from a panel of common shrew x chinese hamster and common shrew x mouse hybrid somatic cell clones using mink gh dna as a probe. the gh gene was found to be localized on chromosome hn of the common shrew. | 1996 | 9225591 |
| [shrews as a borrelia reservoir in northwestern russia]. | the borreliemia was discovered in 22 (44.9%) of 49 common shrews (sorex araneus, soricidae), which were captured in the end of july-august 1995 in the novgorod province. the borreliae were located near the capillaries of the true skin and in the veins of the subcutaneous layer. | 1996 | 8984447 |
| [leptospira antibodies in small mammals in eastern slovakia]. | during the five years (1991-1995) mostly free living small mammals were examined serologically for the presence of antibodies to leptospira. serological examinations were used by kmety and bakoss (1978). altogether, 2493 individuals of 22 species were examined, an important part of host material (69.6%) was caught in two lowland areas which are intensively cultivated landscapes (east slovakian lowland and kosická kotlina basin). the remaining material comes from submontane areas with less agricu ... | 1996 | 9045500 |
| 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 |
| the relationships between brain, serum, and whole blood che activity in the wood mouse (apodemus sylvaticus) and the common shrew (sorex araneus) after acute sublethal exposure to dimethoate. | abstract inhibition of cholinesterase (che) activity produced by a single acute intraperitoneal administration of dimethoate was studied in the wood mouse, apodemus sylvaticus, and the common shrew, sorex araneus, under laboratory conditions. che values from serum and whole blood were compared with those obtained from brain in order to obtain a non-destructive tool for predicting the severity of brain acetylcholinesterase (ache) inhibition. in addition, serum and brain inhibition following oral ... | 1996 | 23902326 |
| polychlorinated biphenyls in small mammals from contaminated landfill sites. | pcbs in small mammals living in a contaminated landfill site varied in both concentration and congener composition, reflecting both the feeding strategy of each species and the chlorination of the congeners. body concentrations of sigmapcb on a 1:1:1 arochlor (1242:1254:1260) basis gave a rank order of sorex araneus > apodemus sylvaticus > microtus agrestis. comparisons with data for other pcb-contaminated sites suggest that the sigmapcb values in s. araneus from the landfill site may be of suff ... | 1996 | 15091398 |
| chromosome localization of the loci for pepa, pepb, peps, idh1, gsr, mpi, pgm1, np, sod1, and me1 in the common shrew (sorex araneus). | this report extends the genetic map of the common shrew (sorex araneus) by adding chromosome assignments for ten genes to the seven already mapped (pack et al. 1995). a somatic cell hybrid panel was used for the mapping. the genes for peptidase a (pepa) and isocitrate dehydrogenase-1 (idh1) map to chromosome de; the genes for phosphoglucomutase-1 (pgm1), superoxide dismutase-1 (sod1), and mannosephosphate isomerase (mpi) are located on chromosome af; the genes for nucleoside phosphorylase (np) a ... | 1996 | 8661695 |
| myosin heavy chains in skeletal muscles of the common shrew (sorex araneus): absence of a slow isoform and transitions of fast isoforms with ageing. | myosin heavy chain (mhc) composition in seven skeletal muscles of the common shrew (sorex araneus) was analysed by gradient sds-page and immunoblotting with monoclonal antibodies. characteristic for the studied muscles (diaphragm, lateral gastrocnemius, medial gastrocnemius, masseter, plantaris, soleus and tibialis anterior) was a total absence of the slow isoform, mhci; all muscles were exclusively composed of two fast isoforms mhciid and mhciib. in young adults the amount of mhciid varied betw ... | 1995 | 8669296 |
| predicting cadmium, lead and fluoride levels in small mammals from soil residues and by species-species extrapolation. | the effects of heavy metals on wild mammals are often assessed by analysing residues in body organs. this paper reviews published studies to determine whether cadmium (cd), lead (pb) and fluoride (f) residues in small mammals can be predicted directly from residues in soil or, when this is not possible, from residues in other species. it was found that residues in soil could be used to predict cd and pb concentrations in small mammals. there were significant (p < 0.05) relationships between cd r ... | 1995 | 15091546 |
| effects of predator removal on vertebrate prey populations: birds of prey and small mammals. | we studied the effects of removal of breeding nomadic avian predators (the kestrel, falco tinnunculus and tengmalm's owl, aegolius funereus) on small mammals (voles of the genera microtus and clethrionomys and the common shrew, sorex araneus) during 1989-1992 in western finland to find out if these predators have a regulating or limiting impact on their prey populations. we removed potential breeding sites of raptors from five manipulation areas (c. 3 km(2) each), whereas control areas had nest- ... | 1995 | 28306779 |
| metals and selenium in wild animals from norwegian areas close to russian nickel smelters. | this paper reports the concentrations of metals (al, as, cd, cr, cu, hg, ni, pb, and/or zn) and selenium (se) in kidney and/or liver samples from capercaillie (tetrao urogallus), willow ptarmigan (lagopus lagopus), hares (lepus timidus), common shrews (sorex araneus) and grey-sided voles (clethrionomus rufocanus) from the norwegian areas most heavily contaminated by pollutants from the russian smelters on the kola peninsula. in addition to comparing areas that differed in expected pollution rate ... | 1995 | 24197780 |
| fatty acids in the triglycerides and phospholipids of the common shrew (sorex araneus) and the water shrew (neomys fodiens). | fatty acid composition of the liver, brown fat, thigh muscle and heart of sorex araneus and neomys fodiens was determined by glc and glc-ms. in both species of shrew the total amounts of omega 3-pufas in the phospholipids were greater than those in the triglycerides. sorex araneus, which feeds solely on a terrestrial diet, had a larger total amount of omega 6-pufas in the triglycerides of the brown fat. the phospholipids of the thigh muscle and heart of neomys fodiens, however, contained more om ... | 1995 | 7584849 |
| characterization of pneumocystis carinii infection in sorex araneus from southern finland. | histologic and quantitative techniques were compared in an evaluation of the intensity of pneumocystis carinii infection in common shrews (sorex araneus) at espoo, southern finland, from september 1992 to may 1993. the histological scores were comparable to the results of the cyst count technique. the number of p. carinii cysts found in common shrews was low compared to those reported by others in clinically ill laboratory rats. the inflammatory changes detected in the lung sections had no signi ... | 1995 | 8583642 |
| gene mapping in the common shrew (sorex araneus; insectivora) by shrew-rodent cell hybrids: chromosome localization of the loci for hprt, tk, ldha, mdh1, g6pd, pgd, and ada. | we selected the common shrew (sorex araneus) to generate the first insectivore gene map. shrew-chinese hamster and shrew- mouse somatic cell hybrid cells were constructed. when the 119 shrew-rodent clones were characterized, only shrew chromosomes were found to have segregated. a panel of hybrid clones was selected for gene assignment. the genes for hypoxanthine phosphoribosyl transferase (hprt), glucose-6- phosphate dehydrogenase (g6pd), and malate dehydrogenase 1 (mdh1) were assigned to shrew ... | 1995 | 8597634 |
| descriptive kinetics of the seminiferous epithelium cycle and genome size in the mole talpa occidentalis (insectivora). | the male germ cell cytodifferentiative process of the mole talpa occidentalis is described. cytochemical procedures were used 1) to follow acrosome formation and spermatid differentiation, dividing the seminiferous epithelium cycle into ten stages, each characterized by typical germ cell-to-cell associations, and recognizing 13 steps in spermatid differentiation; 2) to monitor, in situ, histones replacement by protamines at step 11 of the spermiogenic process. the seminiferous epithelium cycle o ... | 1995 | 7561724 |
| modelling and monitoring organochlorine and heavy metal accumulation in soils, earthworms, and shrews in rhine-delta floodplains. | in the rhine-delta, accumulation of microcontaminants in floodplain foodwebs has received little attention in comparison with aquatic communities. to investigate organochlorine and metal concentrations in a terrestrial foodchain, samples of soil, earthworms (lumbricus rubellus), and shrew (crocidura russula, sorex araneus) livers and kidneys were taken from two moderately to heavily polluted floodplains. chlorobiphenyl residues in earthworm fat were 0.10 to 3.5 times the concentrations in soil o ... | 1995 | 7794009 |
| fiber types and myosin heavy chain composition in muscles of common shrew (sorex araneus). | red-toothed shrews of subfamily soricinae are small mammals with very high mass-specific metabolic rate. owing to their high aerobic power they are interesting objects for studies concerning the limits and constraints of skeletal muscle adaptation. in order to clarify the correlation between metabolic rate and muscle properties, we have analyzed fiber types, fiber size, and myosin heavy chain composition of the common shrew (sorex araneus) and compared them to those of rat (rattus norvegicus). t ... | 1995 | 7852946 |
| transmission of borrelia burgdorferi s.l. from mammal reservoirs to the primary vector of lyme borreliosis, ixodes ricinus (acari: ixodidae), in sweden. | factors regulating prevalence of borrelia burgdorferi s.l. johnson, schmid, hyde, steigerwalt & brenner in ixodes ricinus (l.) were examined during 1991-1992 at bogesund, near stockholm in south-central sweden. nine species of small and medium-sized mammals (sorex araneus l., s. minutus l., neomys fodiens pennant, clethrionomys glareolus [schreber], microtus agrestis [l.], apodemus sylvaticus [l.], a. flavicollis [melchior], lepus europaeus pallas, l. timidus l.) were found to infect feeding tic ... | 1994 | 7815401 |
| a herpesvirus from an european shrew (crocidura russula) | 1994 | 7726008 | |
| the ecotoxicological significance of cadmium intake and residues in terrestrial small mammals. | little is known about the ecotoxicological hazard of cadmium to wild small mammals. this paper reviewed laboratory and field studies to determine: (i) intake and residue lowest-observable-adverse-effect-levels (loaels) for the ecologically important parameters of reproduction and development; (ii) whether these loaels are exceeded by wild small mammals on contaminated habitats and what adverse effects result; and (iii) which species may be at most risk from cadmium. the intake loael in laborator ... | 1994 | 7529157 |
| experimental accumulation of lead from soil through earthworms to common shrews. | common shrews (sorex araneus) were fed on earthworms containing high concentrations of lead. both the earthworms and shrews originated from uncontaminated areas, but earthworms for the "lead" group of shrews were reared in the laboratory for 3 or 4 weeks in highly pb-polluted soil from near an old lead smelter. the control group of shrews received the same amount of earthworms from the uncontaminated area. the acceptance of the experimental food by shrews was significantly lower in the lead grou ... | 1994 | 7804726 |
| the morphology of hymenolepidid and dilepidid cestodes from common and pygmy shrews (soricidae) in southeast england. | one hundred and six of 109 common shrews (sorex araneus) and 62 of 72 pygmy shrews (s. minutus), obtained by longworth trapping in southeast england, were infected with cestodes. ten species were recovered: choanotaenia hepatica and hymenolepis prolifer (found in s. araneus); choanotaenia crassiscolex, hymenolepis furcata, h. jacutensis, h. schaldybini, h. scutigera, h. singularis, h. diaphana and h. infirma (in both hosts). the morphology, taxonomy and ecology of these species are discussed and ... | 1994 | 7829846 |
| chromosomal versus mitochondrial dna evolution: tracking the evolutionary history of the southwestern european populations of the sorex araneus group (mammalia, insectivora). | the shrews of the sorex araneus group have undergone a spectacular chromosome evolution. the karyotype of sorex granarius is generally considered ancestral to those of sorex coronatus and s. araneus. however, a sequence of 777 base pairs of the cytochrome b gene of the mitochondrial dna (mtdna) produces a quite different picture: s. granarius is closely related to the populations of s. araneus from the pyrenees and from the northwestern alps, whereas s. coronatus and s. araneus from italy and th ... | 1994 | 28568274 |
| distribution patterns and microhabitat segregation in gastrointestinal helminths of sorex shrews. | we studied the distribution patterns and microhabitat use in gastrointestinal helminths of the shrews sorex araneus and s. caecutiens in finland. the distribution of species prevalences was bimodal, and in s. araneus the abundance (mean intensity) was positively associated with commonness (prevalence), as assumed by the core-satellite species hypothesis (hanski 1982). however, the positive correlation between prevalence and intensity was observed only when the effects of helminth body size and t ... | 1994 | 28313934 |
| oogenesis in homozygotes and heterozygotes for robertsonian chromosomal rearrangements from natural populations of the common shrew, sorex araneus. | female common shrews in their first pregnancy were collected near oxford (uk) from the hybrid zone between the oxford and hermitage races. these races differ by robertsonian chromosomal rearrangements and both robertsonian heterozygotes and homozygotes are found in the zone. the three homozygotes examined in this study had significantly more oocytes than the six heterozygotes. among the heterozygotes, the number of oocytes tended to be lower in more severely heterozygous individuals; one double ... | 1994 | 8182595 |
| the x-autosome translocation in the common shrew (sorex araneus l.): late replication in female somatic cells and pairing in male meiosis. | common shrews have an xx/xy1y2 sex chromosome system, with the "x" chromosome being a translocation (tandem fusion) between the "original" x and an autosome; in males this autosome is represented by the y2 chromosome. from g-banded chromosomes, the y2 is homologous to the long arm and centromeric part of the short arm of the x. the region of the x that is homologous to the y2 and also the telomeric region of the short arm of the x were found to be early replicating in somatic cells from a female ... | 1993 | 8325167 |
| diet selection by common shrews sorex araneus in a depleting environment. | common shrews (sorex araneus l.) were presented with two prey types at various densities in a depleting environment. observed diet choice was compared to predictions of the classical optimal diet model and of "shrew-specific" simulations incorporating patch depletion. two strategies were simulated: expansion of the diet from taking only profitable prey to taking both types, and fixed partial preference. the simulations predict partial preference over a narrow range of initial densities of profit ... | 1993 | 24897697 |
| a risk-assessment model for toxic exposure of small mammalian carnivores to cadmium in contaminated natural environments. | a model is presented to assess the risk of cadmium toxicity in mammalian wildlife in contaminated environments. the target-organ load was used as a hazard indicator and animals were considered to be at risk when a critical value, i.e. the lowest-observed-adverse-effect level (loael), was attained or exceeded. the model was developed for sorex araneus, a small mammalian predator with a high potential of attaining the critical target-organ load. model parameter values were estimated from both expl ... | 1993 | 8108718 |
| cryptosporidiosis in poland: clinical, epidemiologic and parasitologic aspects. | stool samples from 692 children hospitalized with symptoms of gastroenteritis, were examined for cryptosporidium parvum. the oocysts were found in 17 (2.4%) children. there was no association with age, sex or location of household. however, relatively higher rate of oocyst exclusion was found among 2-month- to 3-year-old groups (50%) and among children from villages (43%). six children from the group of infected were additionally screened for general immunocompetence. four of these exhibited sig ... | 1993 | 8013931 |
| centrorhynchus aluconis (acanthocephala) and other helminth species in tawny owls (strix aluco) in great britain. | observations on the distribution of centrorhynchus aluconis (acanthocephala) and 6 other species of helminths in the definitive host strix aluco, in tawny owl, are presented. infected owls were collected from 16 sites ranging from tarbet, strathclyde, scotland, to ewhurst, surrey, in the south of england. in addition, unidentified cyclophyllidean cestodes were found in the alimentary tract of the tawny owls. centrorhynchus aluconis was the most prevalent helminth found and had the highest intens ... | 1993 | 8277390 |
| borrelia burgdorferi in a focus of lyme borreliosis: epizootiologic contribution of small mammals. | the contribution of woodmice (apodemus sylvaticus), yellow-necked mice (apodemus flavicollis) and bank voles (clethrionomys glareolus) was compared in a focus of lyme borreliosis in switzerland during a 7 months' study. all three species of mice and one species of shrews (sorex araneus) were shown parasitized by infected ixodes ricinus immatures. about 14% of larvae and 50% of nymphs collected on small mammals were infected with b. burgdorferi. spirochetes were isolated from blood of 3 woodmice ... | 1993 | 8325567 |
| vector and host relationships of california serogroup viruses in western siberia. | during 1990 and 1991, adult mosquitoes were collected along the ob river and its tributaries in western siberia from approximately 51 degrees 18'n to 66 degrees 4'n. fifteen virus strains were isolated from 74,196 mosquitoes tested in 1,874 pools. these included tahyna virus from aedes cataphylla-punctor subgroup (one) and ae. excrucians (one), and inkoo (ink) virus from ae. communis (one), ae. communis subgroup (one), ae. hexodontus (two), ae. punctor subgroup (two), ae. punctor complex (one), ... | 1993 | 8352392 |
| study of a contact between two chromosomally monomorphic races of sorex araneus l. (common shrew). | one hundred and twelve specimens of the common shrew from 21 populations in ne poland were studied from an area of contact between chromosomal race ii (metacentric chromosomes: hi, ko, gm, np) and race vii (ki, hn, gr, mp). no direct contact was found between the races in the study area; there were no mixed or hybrid populations. the shortest distance between populations of the two races was 1.2-1.6 km. possible explanations for this pattern of the races' disjunction are discussed. | 1993 | 8407355 |