| the effect of diet quality on gut anatomy in british voles (microtinae). | three species of british voles, the bank vole clethrionomys glareolus, the field vole microtus agrestis and the water vole arvicola terrestris were maintained on diets of seed and plant leaf material to investigate changes in gut anatomy. c. glareolus and m. agrestis showed significant changes in most regions of the gut; they developed longer and heavier tracts when on a high-fibre diet. this response may be important in enabling these animals to withstand seasonal changes in diet quality. | 1993 | 8408846 |
| the os coxae of a digging form of the northern water vole, arvicola terrestris (rodentia, arvicolidae). | data on the morphology, relative growth and sexual dimorphism of the os coxae of a digging form of the northern water vole arvicola terrestris (a.t. monticola) are given. two hundred ninety-nine specimens (146 males and 153 females) caught in the aran valley (spanish pyrenees) were analyzed. the specimens were distributed into six classes of relative age, according to the skull morphology, kind of coat, moulting state, weight and sexual state. the morphological features of the os coxae in these ... | 1991 | 1759723 |
| [verification of the color genotype based on morphological analysis of fur pigmentation of brown and black water voles arvicola terrestris l]. | qualitative and quantitative analysis of fur pigmentation in brown and black water voles (arvicola terrestris l.) was performed. morphology of pigment granules, their distribution along the hair layers and histology of hair bulbs were studied. morphological data and the results of the analysis of segregation in the progeny, when brown voles were self-crossed and crossed with black ones, led to conclusion that fur colour of water voles is mediated by genes from the agouti series, precisely, black ... | 1991 | 1761214 |
| [the postnatal ontogenetic characteristics of adrenal function in female water voles arvicola terrestris with different fur colors]. | studies have been made of the effect of colour mutation on the development of the adrenals in female aquatic voles. colour mutation in homozygote results in retarded growth rate of the whole body and the adrenals, as well as in postnatal changes in the dynamics of corticosteron content in the blood. obviously, the effect of colour mutation on plasma concentrations of corticosteron is realised mainly via extra-adrenal mechanisms since no differences were found in corticosteron production by the a ... | 2014 | 2560307 |
| [functional characteristics of the adrenals in the ontogeny of male water voles arvicola terrestris with various fur colorings]. | studies have been made of the effect of colour mutations on the adrenal function in growing male voles. in postnatal life, the level of 11-oxycorticosteroids in the blood exhibited similar changes in brown (wild phenotype) and black (mutant) voles. the highest level was found in 1-2-month animals; a decrease took place to the 6th month which was followed by a secondary increase at the age of 8 months. corticosteron production in vitro is the highest in brown males 5-month. in black voles, after ... | 2014 | 2556872 |
| the effects of increased dietary cellulose on the anatomy, physiology and behaviour of captive water voles, arvicola terrestris (l.) (rodentia: microtinae). | 1. wild water voles and captives on high fibre diets had significantly longer and heavier digestive tracts (especially the caecum) than captives fed a low fibre diet. 2. increasing dietary cellulose increased food intake, faecal output and metabolic rate, and decreased digestibility. some but not all added cellulose was digested. 3. the passage of food through the digestive tract was significantly faster on the diet with added cellulose. 4. coprophagy included eating directly from the anus and e ... | 1989 | 2575948 |
| [ultrastructural organization of the inner medullary zone of the kidney of the water vole arvicola terrestris]. | papillary component ultrastructure and acid mucopolysaccharide distribution have been investigated in the kidney of the water vole a. terrestris. structural differences between the descending and ascending parts of the henle's loop are rather small, cell cytoplasm of these segments being poor in organells. unusual ultrastructure of the collecting duct epithelium with high level of cytoplasmic organization (elongated thin mitochondria, fairly developed golgi complex, numerous phagosomes and pinoc ... | 2006 | 159594 |
| idiogram and trisomy of the water vole (arvicola terrestris l.), a favourable animal for cytogenetic research. | | 1968 | 5719039 |
| scavenging of rodent carcasses following simulated mortality due to field applications of anticoagulant rodenticide. | worldwide, agricultural uses of anticoagulant rodenticides (ars) cause poisonings of non-target wildlife as observed in france where bromadiolone is used to control water vole outbreaks. following bromadiolone field application, a part of the vole population may die aboveground of the treated plots and thus, can represent an important risk of secondary poisoning for scavengers. in this study, water voles were trapped in a non-treated area and their carcasses were placed aboveground in plots loca ... | 2014 | 25147048 |
| cis-bromadiolone diastereoisomer is not involved in bromadiolone red kite (milvus milvus) poisoning. | anticoagulant rodenticides (ars) are widely used pesticides to control rodent populations. bromadiolone, a second generation anticoagulant rodenticide (sgars), is authorized in france to control the population of water voles (arvicola scherman). the persistence of sgars in rodents is responsible for secondary exposure or poisoning of predators and scavengers, and is of ecological concern for the conservation of endangered species. commercial formulations are a mixture of two diastereoisomers of ... | 2017 | 28605859 |
| acute poisoning of red kites (milvus milvus) in france: data from the sagir network. | red kites (milvus milvus) are avian scavengers limited to europe, and they currently are listed as an endangered species worldwide. accidental poisoning is often listed as one of the threats to red kites throughout their range of distribution. the purpose of this article is to investigate the suspected poisoning cases reported to the french wildlife disease surveillance system. dead animals are submitted to a local veterinary laboratory for necropsy and when poisoning is suspected, samples are s ... | 2008 | 18436673 |
| consequences of organ choice in describing bacterial pathogen assemblages in a rodent population. | high-throughput sequencing technologies now allow for rapid cost-effective surveys of multiple pathogens in many host species including rodents, but it is currently unclear if the organ chosen for screening influences the number and identity of bacteria detected. we used 16s rrna amplicon sequencing to identify bacterial pathogens in the heart, liver, lungs, kidneys and spleen of 13 water voles (arvicola terrestris) collected in franche-comté, france. we asked if bacterial pathogen assemblages w ... | 2017 | 28847331 |
| intestinal parasites of small mammals from grand teton national park. | a study of the prevalence and identity of giardia spp. in small mammals of grand teton national park was undertaken. all 90 montane voles examined were positive for giardia, as were 4 pocket gophers, 1 water shrew, 4 water voles, and 2 meadow voles. how and why these findings contrast with the findings of others are discussed. | 1988 | 3282051 |
| the evolutionary radiation of arvicolinae rodents (voles and lemmings): relative contribution of nuclear and mitochondrial dna phylogenies. | mitochondrial and nuclear genes have generally been employed for different purposes in molecular systematics, the former to resolve relationships within recently evolved groups and the latter to investigate phylogenies at a deeper level. in the case of rapid and recent evolutionary radiations, mitochondrial genes like cytochrome b (cyb) are often inefficient for resolving phylogenetic relationships. one of the best examples is illustrated by arvicolinae rodents (rodentia; muridae), the most impr ... | 2006 | 17029633 |
| rats as potential reservoirs for neglected zoonotic bartonella species in flanders, belgium. | bartonella spp. are vector-borne pathogens transmitted to humans via blood-sucking arthropods. rodents such as the black rat (rattus rattus) and norway rat (r. norvegicus) are thought to be the main reservoirs. an infection with rodent-associated bartonella spp. may cause severe symptoms in humans such as endocarditis and neuroretinitis. the current knowledge of bartonella prevalence in rats from western europe is scarce. | 2020 | 32381113 |
| identification of potential chemosignals in the european water vole arvicola terrestris. | the water vole arvicola terrestris is endemic to europe where its outbreak generates severe economic losses for farmers. our project aimed at characterising putative chemical signals used by this species, to develop new sustainable methods for population control that could also be used for this species protection in great britain. the water vole, as well as other rodents, uses specific urination sites as territorial and sex pheromone markers, still unidentified. lateral scent glands and urine sa ... | 2019 | 31804568 |
| predictive modelling in paleoenvironmental reconstruction: the micromammals of manot cave, israel. | this paper describes the micromammalian remains and paleoenvironment of the upper paleolithic sequence of manot cave (46-34 ka), southern levant. micromammal remains were identified from ahmarian (46-42 ka), levantine aurignacian (38-34 ka) and post-levantine aurignacian (34-33 ka) layers. to identify taphonomic agents, molar digestion was modelled for seven local raptor species, and model predictions were compared with observed digestion scores in the manot cave material. raptor species differe ... | 2019 | 31623862 |
| absence of hantavirus in water voles and eurasian beavers in britain. | hantaviruses are rna viruses (order bunyavirales, family hantaviridae) found in rodent, bat and insectivore reservoir-hosts and have been reported as an emerging significant zoonotic risk in europe. as part of two native semiaquatic rodent restoration projects, tissue and urine samples were tested for hantavirus from water voles (arvicola amphibius) (n=26, in 2015) and eurasian beavers (castor fiber) (n=20, covering 2010-2015) using a pan-hantavirus nested real-time pcr test. kidney and lung sam ... | 2019 | 30792326 |
| seasonal variation of mastophorus muris (nematoda: spirurida) in the water vole arvicola amphibius from southern sweden. | this study focused on the spirurid nematode mastophorus muris in water voles (arvicola amphibius) trapped in three regions in southern sweden during spring and fall 2013. the collection of water voles formed part of a larger project (emiro) on the cestode echinococcus multilocularis in rodents. the voles' stomach contents were examined for the presence of m. muris. prevalence, mean abundance and mean intensity of infection were calculated. a generalized linear model model was used to examine the ... | 2018 | 30369337 |
| a finding of the red squirrel (rodentia, sciuridae, sciurus vulgaris linnaeus, 1758) and forest dormouse (rodentia, gliridae, dryomys nitedula linnaeus, 1778) in the pleistocene of the southern urals. | the study deals with a new sample of the mammalian fossils from the pleistocene deposits of the ignatievskaya cave in southern urals (54°53' n, 57°46' e). among the rodent fossils, the teeth of red squirrel (sciurus vulgaris) and forest dormouse (dryomys nitedula) have been identified. the enamel differentiation quotient (sdq) of the water vole teeth matches the arvicola terrestris species from locations of the end of middle and late pleistocene (oxygen isotope stages, ois 6 and ois 5-2, respect ... | 2018 | 30171471 |
| rodents helminth parasites in different region of iran. | climate condition is expected to have significant in rodents' diversity and in the seasonal pattern of diseases carried by different rodents. in an effort to aid in the study of the biodiversity of parasites of rodents in different climate zoon we examined climate patterns in the parasite assemblages of different rodents from mar 2015 to feb 2016. | 2020 | 30069212 |
| three-dimensional geometric morphometric analysis of the humerus: comparative postweaning ontogeny between fossorial and semiaquatic water voles (arvicola). | different types of locomotion in phylogenetically close rodent species can lead to significantly different growth patterns of certain skeletal structures. in the present study, we compared the allometric and phenotypic trajectories of the humerus in semiaquatic (arvicola sapidus) and fossorial (arvicola scherman) water vole taxa, using three-dimensional geometric morphometrics, to investigate the relationships between functional and ontogenetic differences. results revealed shared humerus traits ... | 2020 | 33037838 |
| spatial and temporal dynamics and molecular evolution of tula orthohantavirus in german vole populations. | tula orthohantavirus (tulv) is a rodent-borne hantavirus with broad geographical distribution in europe. its major reservoir is the common vole (microtus arvalis), but tulv has also been detected in closely related vole species. given the large distributional range and high amplitude population dynamics of common voles, this host-pathogen complex presents an ideal system to study the complex mechanisms of pathogen transmission in a wild rodent reservoir. we investigated the dynamics of tulv prev ... | 2021 | 34208398 |
| reproduction and mortality rates in ecologically distinct species of murid rodents. | the trade-off between reproduction and somatic maintenance is one of the most studied concepts of modern evolutionary ecology. this theory predicts a negative relationship between maximum species longevity and total reproductive output. however, studies performed on natural animal populations have found contradictory results, probably due to the unlikelihood of wild animals gaining both maximum longevity and maximum potential fecundity. a comparison of the mortality rates and reproductive output ... | 2019 | 30415296 |
| farmers' perceptions and knowledge of natural enemies as providers of biological control in cider apple orchards. | while the importance of biological control for crop production is widely acknowledged, research on how farmers perceive on-farm natural enemies remains scarce. this paper examines cider-apple farmers' perceptions and knowledge of the concept of biological control and the specific organisms underpinning its provision (i.e. natural enemies) in the cider-apple orchards of asturias (n spain). although these orchards host a high diversity of natural enemies, certain pests continue to be a problem, e. ... | 2020 | 32392141 |
| spatio-temporal trends in richness and persistence of bacterial communities in decline-phase water vole populations. | understanding the driving forces that control vole population dynamics requires identifying bacterial parasites hosted by the voles and describing their dynamics at the community level. to this end, we used high-throughput dna sequencing to identify bacterial parasites in cyclic populations of montane water voles that exhibited a population outbreak and decline in 2014-2018. an unexpectedly large number of 155 operational taxonomic units (otus) representing at least 13 genera in 11 families was ... | 2020 | 32528097 |
| water vole management - could anticoagulant rodenticides stereochemistry mitigate the ecotoxicity issues associated to their use? | cyclic water vole population explosions can be controlled in some european countries with anticoagulant rodenticides leading sometimes to wildlife poisonings due to the toxin's tissue persistence. here, we analyzed the pharmacokinetics of rodenticide residues in voles and we explored potential ways of improving the mass application of these agents based on the concept of stereoisomers. we demonstrated the dramatic persistence of bromadiolone in vole tissues with a hepatic half-life of about 10 t ... | 2020 | 33130091 |
| do bromadiolone treatments to control grassland water voles (arvicola scherman) affect small mustelid abundance? | the use of pesticides can affect non-target species by causing population declines through indirect intoxication. small mustelids (sms; weasels, mustela nivalis l.; stoats, mustela erminea l.) consume water voles (wvs, arvicola scherman s.) and can be exposed to bromadiolone, an anticoagulant rodenticide used in some countries to reduce wv damage to grasslands. here, we investigated whether bromadiolone affected sm abundance. | 2019 | 30175431 |
| parthenogenesis in the water vole, microtus amphibius. | | 1920 | 17103917 |
| [massive multiplications of the water vole and their relation to solar activity]. | | 2006 | 5630338 |
| the respiratory properties of the blood of two diving rodents, the beaver and the water vole. | | 1968 | 5693326 |
| individual variability of the weight of the water vole in a natural population. | | 1974 | 4279445 |
| [the prognosis for the opisthorchiasis situation in an area influenced by hydraulic engineering works]. | basing on the materials of many years observation, literature and their own data, the authors consider expert prognostication methodology in regard to opisthorchiasis in hydro construction regions as exemplified by the shidertinsk focus and irtysh-karaganda canal. analysis of prognostication signs and alterations connected with them showed that relatively satisfactory situation concerning opisthorchiasis for 10-year period of channel exploitation was provided by measures aiming at water bodies p ... | 2009 | 2534150 |
| [morphophysiological and reproductive changes in the water vole (arvicola terretris l.) caused by helminth infections]. | | 1996 | 8963225 |
| variable social rank of white-spotted male water voles: the effect of the presence of females. | | 2017 | 12577628 |
| reconstruction and prognosis of water vole population dynamics on the basis of tularemia morbidity among novosibirsk oblast residents. | | 2017 | 12705132 |
| biodiversity in urban habitat patches. | we examined the biodiversity of urban habitats in birmingham (england) using a combination of field surveys of plants and carabid beetles, genetic studies of four species of butterflies, modelling the anthropochorous nature of the floral communities and spatially explicit modelling of selected mammal species. the aim of the project was to: (i) understand the ecological characteristics of the biota of cities model, (ii) examine the effects of habitat fragment size and connectivity upon the ecolog ... | 2006 | 16297440 |
| integrating coalescent and ecological niche modeling in comparative phylogeography. | understanding the factors that contribute to the formation of population genetic structure is a central goal of phylogeographic research, but achieving this goal can be complicated by the stochastic variance inherent to genetic processes. statistical approaches to testing phylogeographic hypotheses accommodate this stochasticity by evaluating competing models of putative historical population structure, often by simulating null distributions of the expected variance. the effectiveness of these t ... | 2007 | 17542851 |
| are water vole resistant to anticoagulant rodenticides following field treatments? | the anti-vitamin ks (avks) are widely used to control rodent populations. they inhibit vitamin k regeneration by the vitamin k epoxide reductase (vkor) and cause a fatal hemorrhagic syndrome. because of repeated use, some populations of commensal rodents have expressed resistance to these compounds. in franche-comté (france), the water vole exhibits cyclic population outbreaks. a second generation avk, bromadiolone, has been used for the last 20 years to control vole populations. the aim of this ... | 2011 | 21630005 |
| selection maintains mhc diversity through a natural population bottleneck. | a perceived consequence of a population bottleneck is the erosion of genetic diversity and concomitant reduction in individual fitness and evolutionary potential. although reduced genetic variation associated with demographic perturbation has been amply demonstrated for neutral molecular markers, the effective management of genetic resources in natural populations is hindered by a lack of understanding of how adaptive genetic variation will respond to population fluctuations, given these are aff ... | 2012 | 22323362 |
| [factors of stress in a local population of water vole]. | physiological mechanisms of stress have a multiple influence on the implementation of the adaptive capacity of individuals. from this perspective, analysis of factors determining the stress level of animals in changing environment acquires important ecological and evolutionary significance. in the paper the results are presented of long-term studies carried out at a site of irrigative channel being populated by water voles every year. the results show that high stress level of males is observed ... | 2013 | 22567968 |
| [protein content in urine of male and female water vole (arvicola amphibious) at the period of spring growth and sexual maturation]. | the study was carried out on the captive bread water voles arvicola amphibious kept in vivarium. at the first decade of january, march, and june, the body length and anogenital distance were measured, the body mass was determined, and urine was collected for determination of its protein content. the obtained results have shown that the protein content depends on sex of the animals and is connected with the reproductive status of males and their dimension-weight characteristics. the urinary prote ... | 2013 | 23401970 |
| hierarchical spatial segregation of two mediterranean vole species: the role of patch-network structure and matrix composition. | according to ecological theory, the coexistence of competitors in patchy environments may be facilitated by hierarchical spatial segregation along axes of environmental variation, but empirical evidence is limited. cabrera and water voles show a metapopulation-like structure in mediterranean farmland, where they are known to segregate along space, habitat, and time axes within habitat patches. here, we assess whether segregation also occurs among and within landscapes, and how this is influenced ... | 2016 | 27167226 |