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the interrelationship of mycophagous small mammals and ectomycorrhizal fungi in primeval, disturbed and managed central european mountainous forests.small forest dwelling mammals are considered to be major consumers and vectors of hypogeous ectomycorrhizal (ecm) fungi, which have lost the ability of active spore discharge. fungal spore dispersal by mycophagy is deemed an important process involved in forest regeneration, resilience and vitality, primarily based on evidence from australia and the pacific northwestern usa, but is poorly known for central european mountainous forests thus far. small mammal mycophagy was investigated by live tra ...201222466900
stopping the clock: neobiosis as a predecessor of mammalian hibernation and possible key to the abolition of aging.a number of mammals undergo hibernation during their lifespan. the euthermal condition that occurs prior to hibernation is characterized by inhibition of cellular proliferation, reduction of stress reactivity, a decrease in metabolism, and changes in the immune system (seasonal thymus involution). analysis of data of young red voles (clethrionomys glareolus), common shrews (sorex araneus), and fat dormice (glis glis) while entering into the euthermal condition shows characteristic biphasic growt ...201020370485
female host sex-biased parasitism with the rodent stomach nematode mastophorus muris in wild bank voles (myodes glareolus).abundance and prevalence of helminth infections often differ between host sexes, and are usually biased in favor of males. relatively few cases of female-biased parasitism have been reported. we sampled bank voles in three woodland sites in n.e. poland over 11 years at 3-4-year intervals, and assessed their parasite burdens. prevalence and abundance of the stomach nematode mastophorus muris were consistently higher among females. among adult female bank voles from the two sites that showed the h ...201525395256
increased autumn rainfall disrupts predator-prey interactions in fragmented boreal forests.there is a pressing need to understand how changing climate interacts with land-use change to affect predator-prey interactions in fragmented landscapes. this is particularly true in boreal ecosystems facing fast climate change and intensification in forestry practices. here, we investigated the relative influence of autumn climate and habitat quality on the food-storing behaviour of a generalist predator, the pygmy owl, using a unique data set of 15 850 prey items recorded in western finland ov ...201727371812
classification of muscle fibers in the extraocular muscles of the bank vole (clethrionomys glareolus, schr.) and tree sparrow (passer montanus, l.). 19715562653
ecological factors influencing small mammal infection by anaplasma phagocytophilum and borrelia burgdorferi s.l. in agricultural and forest landscapes.small mammals are key components of numerous tick-borne disease systems, as hosts for immature ticks and pathogen reservoirs. to study the factors influencing tick-borne infection in small mammals, we trapped small mammals and collected questing ticks in spring and autumn in 2012 and 2013 at 24 sites in a 10x15 km rural landscapes (brittany, france). tissue samples were screened by real-time pcr for anaplasma phagocytophilum and borrelia burgdorferi sensu lato. of the two dominant small mammal s ...201728799685
prevalence and genetic variability of anaplasma phagocytophilum in wild rodents from the italian alps.human granulocytic anaplasmosis is a zoonotic bacterial disease with increasing relevance for public health in europe. the understanding of its sylvatic cycle and identification of competent reservoir hosts are essential for improving disease risk models and planning preventative measures.201728615038
low prevalence of zoonotic babesia in small mammals and ixodes ricinus in brittany, france.in order to evaluate the zoonotic risk due to babesia spp., especially b. microti, we investigated their presence in 597 individuals of five small mammal species and in 2620 questing nymphs of ixodes ricinus in rural landscapes of western france (brittany). small mammals (rodents and shrews) are indeed suspected to be reservoir hosts for b. microti, and the tick i. ricinus is the vector of the three main zoonotic species in europe, i.e. b. divergens, b. venatorum and b. microti. only one bank vo ...201728392045
rodents as a reservoir of infection caused by multiple zoonotic species/genotypes of c. parvum, c. hominis, c. suis, c. scrofarum, and the first evidence of c. muskrat genotypes i and ii of rodents in europe.cryptosporidium spp. is an important causative agent of intestinal parasitoses-induced diarrhoea in humans and animals worldwide. rodents (small mammals), the main reservoir of infections, are globally expanded and overpopulated, which increases the risk of transfer of human and zoonotic pathogens from the genus cryptosporidium. in this study, cryptosporidium was detected in wild immunocompetent asymptomatic small mammals. altogether 262 fecal samples were collected from five areas in eastern sl ...201728433573
dampening of population cycles in voles affects small mammal community structure, decreases diversity, and increases prevalence of a zoonotic disease.long-term decline and depression of density in cyclic small rodents is a recent widespread phenomenon. these observed changes at the population level might have cascading effects at the ecosystem level. here, we assessed relationships between changing boreal landscapes and biodiversity changes of small mammal communities. we also inferred potential effects of observed community changes for increased transmission risk of puumala virus (puuv) spread, causing the zoonotic disease nephropatica epide ...201728770071
spatial prediction and validation of zoonotic hazard through micro-habitat properties: where does puumala hantavirus hole - up?to predict the risk of infectious diseases originating in wildlife, it is important to identify habitats that allow the co-occurrence of pathogens and their hosts. puumala hantavirus (puuv) is a directly-transmitted rna virus that causes hemorrhagic fever in humans, and is carried and transmitted by the bank vole (myodes glareolus). in northern sweden, bank voles undergo 3-4 year population cycles, during which their spatial distribution varies greatly.201728747170
phylogenetic analysis of puumala virus strains from central europe highlights the need for a full-genome perspective on hantavirus evolution.puumala virus (puuv), carried by bank voles (myodes glareolus), is the medically most important hantavirus in central and western europe. in this study, a total of 523 bank voles (408 from germany, 72 from slovakia, and 43 from czech republic) collected between the years 2007-2012 were analyzed for the presence of hantavirus rna. partial puuv genome segment sequences were obtained from 51 voles. phylogenetic analyses of all three genome segments showed that the newfound strains cluster with othe ...201728664467
circulation and diagnostics of puumala virus in norway: nephropatia epidemica incidence and rodent population dynamics.hantaviruses pose a public health concern worldwide causing haemorrhagic fever with renal syndrome (hfrs) and hantavirus pulmonary syndrome (hps). puumala virus (puuv) is the most prevalent hantavirus in central and northern europe, and causes a mild form of hfrs, also known as nephropathia epidemica (ne). in nature, the main host of puuv is the bank vole (myodes glareolus), and transmission to humans occurs through inhalation of aerosols from rodent excreta. nephropathia epidemica is particular ...201728585306
modelling human puumala hantavirus infection in relation to bank vole abundance and masting intensity in the netherlands.this paper deals with modelling the relationship between human puumala hantavirus (puuv) infection, the abundance and prevalence of infection of the host (the bank vole), mast, and temperature. these data were used to build and parametrise generalised regression models, and parametrise them using datasets on these factors pertaining to the netherlands. the performance of the models was assessed by considering their predictive power. models including mast and monthly temperature performed well, a ...201728567209
experimental infections of wild bank voles (myodes glareolus) from nephropatia epidemica endemic and non-endemic regions revealed slight differences in puumala virological course and immunological responses.in europe, the occurrence of nephropathia epidemica (ne), a human disease caused by puumala virus (puuv), exhibits considerable geographical heterogeneity despite the continuous distribution of its reservoir, the bank vole myodes glareolus. to better understand the causes of this heterogeneity, wild voles sampled in two adjacent ne endemic and non-endemic regions of france were infected experimentally with puuv. the responses of bank voles to puuv infection, based on the levels of anti-puuv igg ...201728396283
parasite dynamics in an invaded ecosystem: helminth communities of native wood mice are impacted by the invasive bank vole.it is becoming increasingly evident that biological invasions result in altered disease dynamics in invaded ecosystems, with knock-on effects for native host communities. we investigated disease dynamics in an invaded ecosystem, using the helminth communities of the native wood mouse (apodemus sylvaticus) in the presence and absence of the invasive bank vole (myodes glareolus) in ireland. native wood mice were collected over 2 years from four sites to assess the impact of the presence of the ban ...201728653589
tick infestation of small mammals in an english woodland.tick infestations on small mammals were studied from april to november, 2010, in deciduous woodland in southern england in order to determine whether co-infestations with tick stages occurred on small mammals, a key requirement for endemic transmission of tick-borne encephalitis virus (tbev). a total of 217 small mammals was trapped over 1,760 trap nights. yellow-necked mice (apodemus flavicollis) made up the majority (52.5%) of animals, followed by wood mice (a. sylvaticus) 35.5% and bank voles ...201728504447
[ectoparasites and phoresants of the root vole (microtus oeconomus pall.) in the polesye].drainage melioration in the polesye resulted in a sharp increase in the number of tundra vole (microtus oeconomus pall.) which quickly included into the parasitocenosis of the drained land. there were found 26 parasitic and nonparasitic species of gamasoidea, 3 species of ixodidae and 2 species of trombiculidae, 10 species of aphaniptera, 3 species of anoplura but there was found no species specific only for the tundra vole. all found parasites occur on many hosts. this explains wide parasitic l ...20102976144
behaviour of cyclic bank voles under risk of mustelid predation: do females avoid copulations?mustelid odours have been shown to suppress breeding in captive bank voles (clethrionomys glareolus) from cyclic populations (ylönen 1989; ylönen and ronkainen 1994). the mechanism behind the suppression is unknown. based on a series of behavioural trials and breeding experiments with pairs of bank voles in breeding condition, we suggest that the primary cause for breeding suppression is a change in female mating behaviour. experimental female-male pairs (n=34) exposed to mustelid odour decrease ...199428313633
mammalian predator-prey interaction in a fragmented landscape: weasels and voles.the relationship between predators and prey is thought to change due to habitat loss and fragmentation, but patterns regarding the direction of the effect are lacking. the common prediction is that specialized predators, often more dependent on a certain habitat type, should be more vulnerable to habitat loss compared to generalist predators, but actual fragmentation effects are unknown. if a predator is small and vulnerable to predation by other larger predators through intra-guild predation, h ...201323728797
spatio-temporal patterns of habitat use in voles and shrews modified by density, season and predators.1. although the intrinsic habitat preferences of a species can be considered to be fixed, the realized habitat use depends on the prevailing abiotic and biotic conditions. often the core habitats are occupied by dense and stable populations, while marginal habitats become occupied only at times of high density. in a community of interacting species, habitat uses of different species become inter-related, for example an increased density of a strong competitor forcing a weaker competitor to use m ...201222325037
behaviour and resource use of two competing vole species under shared predation risk.indirect interaction between two competing species via a shared predator may be an important determinant of population and community dynamics. we studied the effect of predation risk imposed by the least weasel mustela nivalis nivalis on space use, foraging and activity of two competing vole species, the grey-sided vole myodes rufocanus, and the bank vole myodes glareolus. the experiment was conducted in a large indoor arena, consisting of microhabitat structures providing food, shelter, trees f ...200818612651
variation in predation risk and vole feeding behaviour: a field test of the risk allocation hypothesis.many prey animals experience temporal variation in the risk of predation and therefore face the problem of allocating their time between antipredator efforts and other activities like feeding and breeding. we investigated time allocation of prey animals that balanced predation risk and feeding opportunities. the predation risk allocation hypothesis predicts that animals should forage more in low- than in high-risk situations and that this difference should increase with an increasing attack rati ...200414730443
population growth and habitat distribution in cyclic small rodents: to expand or to change?habitat selection determined by intraspecific interactions (social behaviour), being either free or despotic, should result in the largest densities in the most favourable habitat at least in late increase and decline phases of cyclic populations. habitat distribution determined by interspecific effects such as herbivore-plant or predator-prey interactions may result in higher densities in inferior habitats at late peaks and/or declines due to overgrazing of preferred habitats, or invasion of su ...199728307483
the nature of trichophyton persicolor infection in the bank vole and the interpretation of the results of sampling techniques. 19676048618
lichen compounds restrain lichen feeding by bank voles (myodes glareolus).some lichen compounds are known to deter feeding by invertebrate herbivores. we attempted to quantify the deterring efficiency of lichen compounds against a generalist vertebrate, the bank vole (myodes glareolus). in two separate experiments, caged bank voles had the choice to feed on lichens with natural or reduced concentrations of secondary compounds. we rinsed air-dry intact lichens in 100% acetone to remove extracellular compounds non-destructively. in the first experiment, pairs of control ...201020186468
acute hantavirus infection presenting as haemolytic-uraemic syndrome (hus): the importance of early clinical diagnosis.the european prototype of hantavirus, puumala virus (puuv), isolated from a common wild rodent, the bank vole (myodes glareolus), causes nephropathia epidemica (ne). ne can perfectly mimic haemolytic-uraemic syndrome (hus), progressing from an aspecific flu-like syndrome to acute kidney injury with thrombocytopaenia, and presenting with some signs of haemolytic anaemia and/or coagulopathy. moreover, both ne and hus can occur in local outbreaks. we report an isolated case of ne, initially referre ...201828986730
bank vole immunoheterogeneity may limit nephropatia epidemica emergence in a french non-endemic region.ecoevolutionary processes affecting hosts, vectors and pathogens are important drivers of zoonotic disease emergence. in this study, we focused on nephropathia epidemica (ne), which is caused by puumala hantavirus (puuv) whose natural reservoir is the bank vole, myodes glareolus. we questioned the possibility of ne emergence in a french region that is considered to be ne-free but that is adjacent to a ne-endemic region. we first confirmed the epidemiology of these two regions and we demonstrated ...201728931451
guild composition and habitat use of voles in 2 forest landscapes in south-eastern norway.it is widely believed that intensive forestry has influenced small mammal population dynamics, and thereby the entire mammalian community in fennoscandian boreal forests. the nature of these impacts on the different species is subject to debate. we live-trapped voles between 2006 and 2009 in 2 commercially harvested forests in south-eastern norway. we investigated the variation in vole abundance among habitat types (e.g. mature forest and clear-cut) and the hypothesis that graminivorous species ...201122182322
variation in transfer factor of radiocaesium in bank voles (clethrionomys glareolus) in clear cut and mature forest sites after the chernobyl accident.bank voles that were collected between 1986 and 2004 at sites in chernobyl fallout areas of northern sweden showed higher (137)cs activity concentrations at the mature forest sites compared to clear cuts. this difference was not attributed to differences in ground deposition between sites but to differences in aggregated transfer rates to voles. differences in transfer between forest types were evident for all years 1986-2004 but the change occurred at different rates in the two habitats. the ap ...200717137685
explaining bank vole cycles in southern norway 1980-2004 from bilberry reports 1932-1977 and climate.correlations between mast fruiting of bilberry vaccinium myrtillus and peak levels of clethrionomys-voles have been reported from both norway and finland, but there has been a discussion whether this is a bottom-up or a top-down relationship. in a multiple regression model, 65% of the variation in a bilberry production index calculated from game reports from southern norway 1932-1977 could be explained by the berry index of the two preceding years and climate factors acting during key stages of ...200616344969
densities of microtime rodents along a pollution gradient from a copper-nickel smelter.population densities of microtine rodents were studied along an air pollution gradient in the kola peninsula, russia, by long-term and short-term trapping. the study area is affected by high sulphur dioxide and heavy metal emissions from the severonikel copper-nickel smelter in monchegorsk. the density of clethrionomys rufocanus, the most abundant vole species in the area, was lowest close to the smelter and increased with distance up to the farthest, less polluted trapping sites. clethrionomys ...199428313738
spotted fever rickettsiae in wild-living rodents from south-western poland.rickettsiae are obligate intracellular alpha-proteobacteria. they are transmitted via arthropod vectors, which transmit the bacteria between animals and occasionally to humans. so far, much research has been conducted to indicate reservoir hosts for these microorganisms, but our knowledge is still non-exhaustive. therefore, this survey was undertaken to investigate the presence of rickettsia spp. in wild-living small rodents from south-western poland.201728874204
distribution and space use of seed-dispersing rodents in central pyrenees: implications for genetic diversity, conservation and plant recruitment.the function and conservation of many forest ecosystems depend on the distribution and diversity of the community of rodents that consume and disperse seeds. the habitat preferences and interactions are especially relevant in alpine systems where such granivorous rodents reach the southernmost limit of their distribution and are especially sensitive to global warming. we analysed the community of granivorous rodents in the pyrenees, one of the southernmost mountain ranges of europe. rodent speci ...201829316239
diversity and prevalence of bartonella species in small mammals from slovakia, central europe.wild-living rodents are important hosts for zoonotic pathogens. bartonella infections are widespread in rodents; however, in slovakia, knowledge on the prevalence of these bacteria in small mammals is limited. we investigated the prevalence and diversity of bartonella species in the spleens of 640 rodents of six species (apodemus flavicollis, apodemus sylvaticus, myodes glareolus, microtus arvalis, microtus subterraneus, and micromys minutus) and in the european mole (talpa europaea) from three ...201728975409
effects of strain and species on the septo-temporal distribution of adult neurogenesis in rodents.the functional septo-temporal (dorso-ventral) differentiation of the hippocampus is accompanied by gradients of adult hippocampal neurogenesis (ahn) in laboratory rodents. an extensive septal ahn in laboratory mice suggests an emphasis on a relation of ahn to tasks that also depend on the septal hippocampus. domestication experiments indicate that ahn dynamics along the longitudinal axis are subject to selective pressure, questioning if the septal emphasis of ahn in laboratory mice is a rule app ...201729311796
microtus arvalis and arvicola scherman: key players in the echinococcus multilocularis life cycle.a broad range of rodent species are described as potential intermediate hosts for echinococcus multilocularis, a wide-spread zoonotic cestode causing alveolar echinococcosis. however, little is known about the relative contribution of these species for parasite reproduction and the maintenance of its life cycle. in a comparative study in a high endemic region in zurich, switzerland, we investigated prevalence rates and fertility of e. multilocularis in the most abundant vole species as well as t ...201729326950
experimental investigation of a hantavirus host-switch between arvicoline rodents lemmus lemmus and myodes glareolus. 201324581373
observations on the use of the exercise-wheel in relation to the social rank and hormonal conditions in the bank vole (clethrionomys glareolus), and the norway lemming (lemmus lemmus). 19715166538
n-terminal prion protein peptides (prp(120-144)) form parallel in-register β-sheets via multiple nucleation-dependent pathways.the prion diseases are a family of fatal neurodegenerative diseases associated with the misfolding and accumulation of normal prion protein (prpc) into its pathogenic scrapie form (prpsc). understanding the fundamentals of prion protein aggregation and the molecular architecture of prpsc is key to unraveling the pathology of prion diseases. our work investigates the early-stage aggregation of three prion protein peptides, corresponding to residues 120-144 of human (hu), bank vole (bv), and syria ...201627576687
seasonal shift of diet in bank voles explains trophic fate of anthropogenic osmium?diet shifts are common in mammals and birds, but little is known about how such shifts along the food web affect contaminant exposure. voles are staple food for many mammalian and avian predators. there is therefore a risk of transfer of contaminants accumulated in voles within the food chain. osmium is one of the rarest earth elements with osmium tetroxide (oso4) as the most toxic vapor-phase airborne contaminant. anthropogenic oso4 accumulates in fruticose lichens that are important winter foo ...201729079088
long-term population patterns of rodents and associated damage in german forestry.several rodent species can damage forest trees, especially at young tree age in afforestation. population outbreaks of field voles (microtus agrestis l.) and bank voles (myodes glareolus schreber) in particular can cause losses.201727233231
discovery of novel alphacoronaviruses in european rodents and shrews.eight hundred and thirteen european rodents and shrews encompassing seven different species were screened for alphacoronaviruses using pcr detection. novel alphacoronaviruses were detected in the species rattus norvegicus, microtus agrestis, sorex araneus and myodes glareolus. these, together with the recently described lucheng virus found in china, form a distinct rodent/shrew-specific clade within the coronavirus phylogeny. across a highly conserved region of the viral polymerase gene, the new ...201627102167
[functional features of microbial communities in the digestive tract of field voles (microtus rossiaemeridionalis and clethrionomys glareolus)].the nitrogen-fixating and cellobiohydrolase activity, the nitrogen (n) and carbon (c) contents, and the number of microorganisms in the prestomach, cecum, and colon of two vole species were studied: the southern vole (microtus rossiaemeridionalis) and the bank vole (clethrionomys glareolus), which is characterized by a mixed type of diet. the nitrogen-fixating activity in the cecum was found to be the highest in the voles compared with the mammals studied earlier. the seasonal dynamics of both n ...201622988758
rodent damage to natural and replanted mountain forest regeneration.impact of small rodents on mountain forest regeneration was studied in national nature reserve in the beskydy mountains (czech republic). a considerable amount of bark damage was found on young trees (20%) in spring after the peak abundance of field voles (microtus agrestis) in combination with long winter with heavy snowfall. in contrast, little damage to young trees was noted under high densities of bank voles (myodes glareolus) with a lower snow cover the following winter. the bark of deciduo ...201222666163
breeding state and season affect interspecific interaction types: indirect resource competition and direct interference.indirect resource competition and interference are widely occurring mechanisms of interspecific interactions. we have studied the seasonal expression of these two interaction types within a two-species, boreal small mammal system. seasons differ by resource availability, individual breeding state and intraspecific social system. live-trapping methods were used to monitor space use and reproduction in 14 experimental populations of bank voles myodes glareolus in large outdoor enclosures with and ...201121597944
xenobiotic metabolism of bank vole (myodes glareolus) exposed to pcdds.previous studies in bank vole (myodes glareolus) and field vole (microtus agrestis) living at the old sawmill area contaminated by chlorinated dibenzo-p-dioxins and -furans (pcdd/fs) showed that these two relatively close species have a significant difference in their body burden of pcdd/fs, bank voles having significantly higher concentrations. the aim of this study was to clarify more comprehensively the basic xenobiotic metabolism in wild bank voles and examine whether pcdd exposure would aff ...201021787577
costs of coexistence along a gradient of competitor densities: an experiment with arvicoline rodents.1. costs of coexistence for species with indirect resource competition usually increase monotonically with competitor numbers. very little is known though about the shape of the cost function for species with direct interference competition. 2. here we report the results of an experiment with two vole species in artificial coexistence in large enclosures, where density of the dominant competitor species (microtus agrestis) was manipulated. experimental populations of the subordinate vole species ...200717184354
dynamics and trophic interactions of small rodents: landscape or regional effects on spatial variation?geographically varying rodent dynamics may be due to specific landscape effects or to regional variation. two common vole species (clethrionomys glareolus and microtus agrestis), their main predators and their impact on some important food items were monitored in sweden on forest clearcuts in two different landscape types, situated in two different regions with different climatic conditions. censuses, with 10-16 clearcuts in each landscape and both landscapes in the two regions, were designed to ...200228547149
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 ...200228547147
fluoride accumulation and toxicity in wild small mammals.populations of two species of small mammal, the field vole (microtus agrestis l.) and the bank vole (clethrionomys glareolus l.), inhabiting grasslands contaminated by industrial sources of fluoride were examined for fluoride concentrations in skeletal tissue and for morphological changes in the teeth. concentrations of fluoride in teeth and bones were higher for c. glareolus than for m. agrestis at the chemical works and smelter sites. severe dental lesions were recorded on the incisor and mola ...199415091672
parental investment related to social systems in microtines.laboratory offspring of wild-caught voles clethrionomys glareolus and microtus agrestis, bred for 1 year under constant conditions, were examined with regard to sex ratios and weights at weaning and at 2 months of age. c. glareolus exhibits female territoriality and m. agrestis male territoriality in summer. the adults die away in late summer-autumn. early-summer young mature in the year of birth but late-summer young do not reach maturity until the following year. c. glareolus young showed a ma ...199228312884
spatial dynamics in fluctuating vole populations.patterns and consistency of distribution, spatial and temporal components, and the extent of spatial density-dependence were compared between semi-cyclic and cyclic populations of the vole species clethrionomys glareolus and microtus agrestis in south-central and north sweden. cyclic populations were less clumped and only c. glareolus showed a consistency in distribution between years. spatial variation contributed little to the distributions in cyclic populations while the spatial and temporal ...199028312557
gradients in density variations of small rodents: the importance of latitude and snow cover.microtine rodents are known to show extreme population variations (cycles) but non-cyclic populations have also been recognized during recent years. the cyclic populations have been widely thought to be regulated by intrinsic mechanisms. however, such predictions for cyclic populations are usually not applicable to non-cyclic ones and extrinsic factors may have to be included in any explanation.a hypothesis that the degree of fluctuations in small rodent numbers is related to the sustainable num ...198528311574
experiments on habitat selection in voles: implications for the inverse distribution of two common european species.several pairs of species of microtine rodents show inverse distributions or abundance. here i determine if the inverse abundance relationship of the bank vole clethrionomys glareolus (a forest species) and the field vole microtus agrestis (an open field species) could be explained by habitat selection. habitat selection was examined by choice experiments with combinations of soil and vegetation types, and with separate habitat factors. the effects of early experience and social behaviour were al ...198228310515
acceleration of ovarian follicle maturation of female caused by male in microtus agrestis and clethrionomys glareolus. 19807004917
duration of spermatogenesis in the vole (microtus agrestis) and bank vole (clethrionomys glareolus). 1976775076
proceedings: placental lactogen secretion in the field vole (microtus agrestis) and the bank vole (clethrionomys glareolus). 19751097562
the development of the ovary from birth to maturity in the bank vole (clethrionomys glareolus) and the vole (microtus agrestis). 19744829082
[existence of an adrenal x zone in the red field vole (clethrionomys glareolus)]. 195414365027
cryptosporidium infecting wild cricetid rodents from the subfamilies arvicolinae and neotominae.we undertook a study on cryptosporidium spp. in wild cricetid rodents. fecal samples were collected from meadow voles (microtus pennsylvanicus), southern red-backed voles (myodes gapperi), woodland voles (microtus pinetorum), muskrats (ondatra zibethicus) and peromyscus spp. mice in north america, and from bank voles (myodes glareolus) and common voles (microtus arvalis) in europe. isolates were characterized by sequence and phylogenetic analyses of the small subunit ribosomal rna (ssu) and acti ...201728870264
difference in susceptibility of small rodent host species to infestation by ixodes ricinus larvae.in a laboratory experiment (repeated eight times) individuals of six small rodent species were mixed with 500 ixodes ricinus larvae for 24 h, than over a 3-day-long observation period engorged ticks fallen from individually kept rodents were counted. forty engorged larvae fell from the hosts, 25% from striped field mice, 32.5% from house mice, 22.5% from common voles, 10% from bank voles, while wood mouse and steppe mouse proved to be almost free of successfully infesting ticks (both 5%). statis ...201728593480
seed preferences by rodents in the agri-environment and implications for biological weed control.post-dispersal seed predation and endozoochorous seed dispersal are two antagonistic processes in relation to plant recruitment, but rely on similar preconditions such as feeding behavior of seed consumers and seed traits. in agricultural landscapes, rodents are considered important seed predators, thereby potentially providing regulating ecosystem services in terms of biological weed control. however, their potential to disperse seeds endozoochorously is largely unknown. we exposed seeds of ara ...201627547355
de novo lipogenesis is suppressed during fasting but upregulated at population decline in cyclic voles.arvicolines are susceptible to the development of fatty liver during short-term fasting. we examined the potential role of de novo lipogenesis (dnl) (i) in the development of fasting-induced fatty liver and (ii) during a population cycle by measuring the mrna expression of acetyl-coa carboxylase-1 (acc1) and fatty acid synthase (fas). laboratory voles (microtus oeconomus and microtus arvalis) were fed or fasted for 12 or 18 h and their liver mrna levels were determined. both species showed decre ...201626892709
[species composition, abundance, and annual cycles of fleas (siphonaptera) on bank voles (clethrionomys glareolus) in the western part of vologda province (babaevo district)].a total of 383 fleas of 11 species were collected from 428 bank voles (clethrionomys glareolus) near babaevo vill. (59 degrees 4', n, 35 degrees 8' e). three species (amphipsylla rossica, doratopsylla dasycnema, palaeopsylla soricis) are not typical for these rodent hosts, moving onto the latter occasionally from other animals, such as the common vole microtus arvalis and shrews inhabiting adjacent or similar biotopes. peromyscopsylla bidentata, infesting the bank vole in the most part of its ra ...201425464742
does spatial learning ability of common voles (microtus arvalis) and bank voles (myodes glareolus) constrain foraging efficiency?place learning abilities represent adaptations that contribute also to foraging efficiency under given spatio-temporal conditions. we investigated if this ability in turn constrains decision making in two sympatric vole species: while the herbivorous common vole (microtus arvalis) feeds on spatio-temporally predictable food resources (e.g. roots, tubers and shoots of plant tubers), the omnivorous bank vole (myodes glareolus) additionally subsists on temporally unpredictable food resources (e.g. ...201020596739
concentrations of selected heavy metals in bones and femoral bone structure of bank (myodes glareolus) and common (microtus arvalis) voles from different polluted biotopes in slovakia.concentrations of selected heavy metals in the femora and femoral bone structure of bank (myodes glareolus) and common (microtus arvalis) voles from different polluted biotopes in slovakia (kolíňany and nováky sites) were investigated. length, weight, and histological structure of vole bones were also analyzed. we observed higher concentrations of lead (pb), iron (fe), copper (cu), and zinc (zn) in the bones of both species from the kolíňany site. significant differences were observed in the con ...201120532880
[external structure of cuticle injuries and larval mouth parts of the chiggers euschoengastia rotundata and neotrombicula vulgaris (trombiculidae)].when e. rotundata larvae parasitize the abdominal part of the body of their host (clethrionomys glareolus), capsules with round terminal opening are formed from which hind part of the mite's body projects forwards. organization of the capsules shows that their walls are formed by a substance (probably by larval saliva) which differs from host's tissues. at the bottom of the capsules there are larval adhesive sites with openings in the proximal parts of stylostomes which resemble in their structu ...20073528991
[hopopleura edentula (anoplura, hoplopleuridae), a parasite of voles of the genus clethrionomys].the louse hoplopleura edentula fahrennolz occurs not only on the vole clethrionomys glareolus schreb. but also on the other members of the genus widely distributed in the ussr, c. rutilus pall. and c. rufocanus sund. the characters distinguishing h. edentula from the close species h. acanthopus (burm.) described from microtus arvalis pall. are the differences in the shape of the dorsal lobe of the pleural plate of the third abdominal segment and in the size of the male copulative organ.20076992052
does risk of predation by mammalian predators affect the spacing behaviour of rodents? two large-scale experiments.predator-prey interactions between small mammals and their avian and mammalian predators have attracted much attention. however, large-scale field experiments examining small-mammal antipredatory responses under the risk of predation by mammals are rare. as recently pointed out, the scale of experiments may cause misleading results in studies of decision-making under predation risk. we studied the effect of small mustelid predators on the spacing behaviour of the gray-tailed vole (microtus canic ...200028308340
diazotrophic and cellulolytic component of the internal food chains in the voles microtus rossiaemeridionalis and clethrionomys glareolus depending on the feeding specialization. 201424795192
[biological activity of soils in the settlements of southern (microtus rossiaemeridionalis) and bank (clethrionomys glareolus) voles].the effect of southern (microtus rossiaemeridionalis) and bank (clethrionomys glareolus) voles on the biological activity of soddy-podzolic soil and culturozem has been studied. to estimate this effect, the activity of nitrogen and carbon transformation in the soil taken from the paths and different chambers of the holes of these rodents, as well as from the control plots where there were no voles, has been determined. the contents of organic carbon and nitrogen in the soil have been found. the ...201724459855
hippocampal mossy fibers and swimming navigation learning in two vole species occupying different habitats.we showed previously for mice that size differences of the infrapyramidal hippocampal mossy fiber projection (iip-mf) correlate with spatial learning abilities. in order to clarify the role of the iip-mf in a natural environment, we studied the bank vole (clethrionomys glareolus), adapted to a wide range of different habitats, and the root vole (microtus oeconomus), living in homogenous grassland habitats with small home ranges. morphometry on timm-stained horizontal brain sections of six c. gla ...200010706213
[embryonic malformations in rodents in forest communities of the bryansk region exposed to radioactive pollution].embryonic malformations have been described and classified in small forest rodents (microtus oeconomus, clethrionomys glareolus), which had several generations living on the radioactively contaminated territory and were exposed to small doses of radiation (140-200 mkr/h).20169467640
the curious normality of the synaptic association between the sex chromosomes of two arvicoline rodents: microtus oeconomus and clethrionomys glareolus.in all eight species of arvicoline (microtine) rodents previously described, the x and y chromosomes have remained asynaptic throughout pachynema. since synapsis is presumed to be a prerequisite for crossing over, it has been concluded that the sex chromosomes in these species are also achiasmatic, but the mechanism(s) of their disjunction remains an enigma. their asynaptic, achiasmatic condition has been attributed to loss of the pseudoautosomal region (borodin et al. 1991; carnero et al. 1991; ...19948083057
[seasonal changes in the brain and skull sizes of small mammals].a comparative study of seasonal-age dynamics of brain size in six small mammal species, clethrionomys glareolus, c. rutilus, microtus oeconomus, m. gregalis (rodentia); sorex araneus, s. minutis (insectivora) has been carried out. the analysis of seasonal changes in brain weight confirms the existence of autumn-winter regression of brain weight, which takes place at the organism level. the regression is less pronounced in voles than in shrews. the decrease in brain weight both in voles and in sh ...20062800709
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 ...201829351080
sub-ångström cryo-em structure of a prion protofibril reveals a polar clasp.the atomic structure of the infectious, protease-resistant, β-sheet-rich and fibrillar mammalian prion remains unknown. through the cryo-em method microed, we reveal the sub-ångström-resolution structure of a protofibril formed by a wild-type segment from the β2-α2 loop of the bank vole prion protein. the structure of this protofibril reveals a stabilizing network of hydrogen bonds that link polar zippers within a sheet, producing motifs we have named 'polar clasps'.201829335561
a shift in the thermoregulatory curve as a result of selection for high activity-related aerobic metabolism.according to the "aerobic capacity model," endothermy in birds and mammals evolved as a result of natural selection favoring increased persistent locomotor activity, fuelled by aerobic metabolism. however, this also increased energy expenditure even during rest, with the lowest metabolic rates occurring in the thermoneutral zone (tnz) and increasing at ambient temperatures (ta) below and above this range, depicted by the thermoregulatory curve. in our experimental evolution system, four lines of ...201729326604
experimental cowpox virus (cpxv) infections of bank voles: exceptional clinical resistance and variable reservoir competence.cowpox virus (cpxv) is a zoonotic virus and endemic in wild rodent populations in eurasia. serological surveys in europe have reported high prevalence in different vole and mouse species. here, we report on experimental cpxv infections of bank voles (myodes glareolus) from different evolutionary lineages with a spectrum of cpxv strains. all bank voles, independently of lineage, sex and age, were resistant to clinical signs following cpxv inoculation, and no virus shedding was detected in nasal o ...201729257111
variation of metallothionein i and ii gene expression in the bank vole (clethrionomys glareolus) under environmental zinc and cadmium exposure.the main idea of the study was to assess how environmental metal pollution activates defence responses at transcription levels in the tissues of bank voles (clethrionomys glareolus). for this purpose, the metallothioneine (mt) genes expression (a well known biomarker of exposure and response to various metals) was measured. the real-time pcr method was used for relative quantification of metallothionein i and metallothionein ii expressions in the livers, kidneys and testes of bank voles from six ...201729248947
stabilizing selection on microsatellite allele length at arginine vasopressin 1a receptor and oxytocin receptor loci.the loci arginine vasopressin receptor 1a (avpr1a) and oxytocin receptor (oxtr) have evolutionarily conserved roles in vertebrate social and sexual behaviour. allelic variation at a microsatellite locus in the 5' regulatory region of these genes is associated with fitness in the bank vole myodes glareolus given the low frequency of long and short alleles at these microsatellite loci in wild bank voles, we used breeding trials to determine whether selection acts against long and short alleles. fe ...201729237850
atypical creutzfeldt-jakob disease with prp-amyloid plaques in white matter: molecular characterization and transmission to bank voles show the m1 strain signature.amyloid plaques formed by abnormal prion protein (prpsc) aggregates occur with low frequency in creutzfeldt-jakob disease, but represent a pathological hallmark of three relatively rare disease histotypes, namely variant cjd, sporadic cjdmv2k (methionine/valine at prnp codon 129, prpsc type 2 and kuru-type amyloid plaques) and iatrogenic cjdmmik (mm at codon 129, prpsc of intermediate type and kuru plaques). according to recent studies, however, prp-amyloid plaques involving the subcortical and ...201729169405
elevated mitochondrial genome variation after 50 generations of radiation exposure in a wild rodent.currently, the effects of chronic, continuous low dose environmental irradiation on the mitochondrial genome of resident small mammals are unknown. using the bank vole (myodes glareolus) as a model system, we tested the hypothesis that approximately 50 generations of exposure to the chernobyl environment has significantly altered genetic diversity of the mitochondrial genome. using deep sequencing, we compared mitochondrial genomes from 131 individuals from reference sites with radioactive conta ...201729151870
genetic characterization of bank vole virus (bavv), a new paramyxovirus isolated from kidneys of bank voles in russia.a genome of bank vole virus (bavv), isolated from kidney tissues of bank voles (myodes glareolus) in russia in 1973, was sequenced. the genomic organization of bavv (3'-n-p/v/c-m-f-g-l-5', 16,992 nt in length; genbank accession number mf943130) is most similar to that of mossman virus (mov) and nariva virus (narpv), two ungrouped paramyxoviruses isolated from rodents in australia and trinidad, respectively. the proteins of bavv have the highest level of sequence identity (ranging from 23-28% for ...201729129019
the molecular identification of calodium hepaticum in the wild brown rat (rattus norvegicus) in poland.calodium hepaticum is a parasitic nematode found primarily in rodents but known to infect numerous other mammal species, and causing in humans the hepatic calodiasis. herein, we present the first finding of c. hepaticum in rattus norvegicus in poland. in this study, we have used the combined pepsin-hcl digestion and molecular techniques to detect c. hepaticum infection in the liver. the results confirm the usefulness of molecular approaches for investigating the biology and epidemiology of c. he ...201729035861
soluble polymorphic bank vole prion proteins induced by co-expression of quiescin sulfhydryl oxidase in e. coli and their aggregation behaviors.the infectious prion protein (prpsc or prion) is derived from its cellular form (prpc) through a conformational transition in animal and human prion diseases. studies have shown that the interspecies conversion of prpc to prpsc is largely swayed by species barriers, which is mainly deciphered by the sequence and conformation of the proteins among species. however, the bank vole prpc (bvprp) is highly susceptible to prpsc from different species. transgenic mice expressing bvprp with the polymorph ...201728978309
asparagine and glutamine ladders promote cross-species prion conversion.prion transmission between species is governed in part by primary sequence similarity between the infectious prion aggregate, prpsc, and the cellular prion protein of the host, prpc a puzzling feature of prion formation is that certain prpc sequences, such as that of bank vole, can be converted by a remarkably broad array of different mammalian prions, whereas others, such as rabbit, show robust resistance to cross-species prion conversion. to examine the structural determinants that confer susc ...201728931606
glareosin: a novel sexually dimorphic urinary lipocalin in the bank vole, myodes glareolus.the urine of bank voles (myodes glareolus) contains substantial quantities of a small protein that is expressed at much higher levels in males than females, and at higher levels in males in the breeding season. this protein was purified and completely sequenced at the protein level by mass spectrometry. leucine/isoleucine ambiguity was completely resolved by metabolic labelling, monitoring the incorporation of dietary deuterated leucine into specific sites in the protein. the predicted mass of t ...201728878040
comparative stylostome ultrastructure of hirsutiella zachvatkini (trombiculidae) and trombidium holosericeum (trombidiidae) larvae.stylostomes (feeding tubes) of hirsutiella zachvatkini (schluger) (trombiculidae), feeding on bank voles [myodes glareolus (schreber)], and of trombidium holosericeum (l.) (trombidiidae), feeding on larvae of stenodemini sp. (heteroptera, miridae), were studied by tem methods and on semi-thin sections. the stylostome of h. zachvatkini is a homogeneous structure of low electron density and without strict margins. it extends within the concave host epidermis, undergoing hyperplasia and hyperkerato ...201728852943
does signaling of estrogen-related receptors affect structure and function of bank vole leydig cells?to get a deeper insight into the function of estrogen-related receptors (errs) and dissect underlying mechanism in leydig cells, errs (type α, β and γ) were blocked or activated in testes of adult bank voles (myodes glareolus) which show seasonal changes in the intratesticular sex hormones level. both actively reproducing animals (long day conditions; ld) and those with regression of the reproductive system (short day conditions; sd) received intraperitoneal injections of selective errα antagoni ...201728820402
mechanical constraint from growing jaw facilitates mammalian dental diversity.much of the basic information about individual organ development comes from studies using model species. whereas conservation of gene regulatory networks across higher taxa supports generalizations made from a limited number of species, generality of mechanistic inferences remains to be tested in tissue culture systems. here, using mammalian tooth explants cultured in isolation, we investigate self-regulation of patterning by comparing developing molars of the mouse, the model species of mammali ...201728808032
age-related changes of physiological performance and survivorship of bank voles selected for high aerobic capacity.variation in lifespans is an intriguing phenomenon, but how metabolic rate influence this variation remains unclear. high aerobic capacity can result in health benefits, but also in increased oxidative damage and accelerated ageing. we tested these contradictory predictions using bank voles (myodes=clethrionomys glareolus) from lines selected for high swim-induced aerobic metabolism (a), which had about 50% higher maximum metabolic rate and a higher basal and routine metabolic rates, than those ...201728803134
the bruce effect revisited: is pregnancy termination in female rodents an adaptation to ensure breeding success after male turnover in low densities?pregnancy termination after encountering a strange male, the bruce effect, is regarded as a counterstrategy of female mammals towards anticipated infanticide. while confirmed in caged rodent pairs, no verification for the bruce effect existed from experimental field populations of small rodents. we suggest that the effect may be adaptive for breeding rodent females only under specific conditions related to populations with cyclically fluctuating densities. we investigated the occurrence of delay ...201728791488
temporal dynamics of the tick ixodes ricinus in northern europe: epidemiological implications.tick-borne pathogens pose an increasing threat to human and veterinary health across the northern hemisphere. while the seasonal activity of ticks is largely determined by climatic conditions, host-population dynamics are also likely to affect tick abundance. consequently, abundance fluctuations of rodents in northern europe are expected to be translated into tick dynamics, and can hence potentially affect the circulation of tick-borne pathogens. we quantified and explained the temporal dynamics ...201728359294
balancing selection maintains polymorphisms at neurogenetic loci in field experiments.most variation in behavior has a genetic basis, but the processes determining the level of diversity at behavioral loci are largely unknown for natural populations. expression of arginine vasopressin receptor 1a (avpr1a) and oxytocin receptor (oxtr) in specific regions of the brain regulates diverse social and reproductive behaviors in mammals, including humans. that these genes have important fitness consequences and that natural populations contain extensive diversity at these loci implies the ...201728325880
mercury in soil, earthworms and organs of voles myodes glareolus and shrew sorex araneus in the vicinity of an industrial complex in northwest russia (cherepovets).the characteristic properties of uptake and distribution of mercury in terrestrial ecosystems have received much lesser attention compared to aquatic particularly in russia. terrestrial ecosystems adjacent to large industrial manufactures-potential sources of mercury inflow into the environment frequently remain unstudied. this is the first report on mercury (hg) levels in the basic elements of terrestrial ecosystems situated close to a large metallurgical complex.mean values of mercury concentr ...201728197948
surviving winter: food, but not habitat structure, prevents crashes in cyclic vole populations.vole population cycles are a major force driving boreal ecosystem dynamics in northwestern eurasia. however, our understanding of the impact of winter on these cycles is increasingly uncertain, especially because climate change is affecting snow predictability, quality, and abundance. we examined the role of winter weather and snow conditions, the lack of suitable habitat structure during freeze-thaw periods, and the lack of sufficient food as potential causes for winter population crashes. we l ...201728070280
behavioural responses of ixodes ricinus nymphs to carbon dioxide and rodent odour.many haematophagous ectoparasites use carbon dioxide (co2 ) and host odour to detect and locate their hosts. the tick ixodes ricinus (linnaeus) (ixodida: ixodidae) walks only small distances and quests in vegetation until it encounters a host. the differential effects of co2 and host odour on the host-finding behaviour of i. ricinus have, however, never been clarified and hence represent the subject of this study. the effects of co2 and odour from bank voles on the activation and attraction of i ...201727966215
transmissibility of gerstmann-sträussler-scheinker syndrome in rodent models: new insights into the molecular underpinnings of prion infectivity.prion diseases, or transmissible spongiform encephalopathies, have revealed the bewildering phenomenon of transmissibility in neurodegenerative diseases. hence, the experimental transmissibility of prion-like neurodegenerative diseases via template directed misfolding has become the focus of intense research. gerstmann-sträussler-scheinker disease (gss) is an inherited prion disease associated with mutations in the prion protein gene. however, with the exception of a few gss cases with p102l mut ...201627892798
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