| [ecology of ixodid ticks from small mammals in the leningrad oblast]. | collections from rodents conducted over a period of 11 years in natural nidi of tularemia in the leningrad region include the ticks of ixodes persulcatus, i. ricinus, i. trianguliceps and i. apronophorus. the redbacked vole is the main host of i. trianguliceps larvae. the larvae of this species have two peaks of abundance, in june and september. larvae and other developmental phases of i. apronophorus were most abundant on water vole in june. larvae of i. persulcatus and i. ricinus feed on small ... | 1977 | 143642 |
| [polymorphism of the fur pigmentation genes and the hormonal adaptation system in the water vole (arvicola terrestris)]. | postnatal ontogenesis of hormonal system of hypophysis - adrenal glands and hormonal reaction under stress conditions were examined in adult water mouse, which had polymorphic fur color genes. black females (genotype aa), opposite to brown ones, (genotype aa, aa) had changed postnatal ontogenesis of adrenal glands function and they had not hormonal reaction to the two days water deprivation. | 1991 | 1955614 |
| use of recombinant vaccinia-rabies glycoprotein virus for oral vaccination of wildlife against rabies: innocuity to several non-target bait consuming species. | the pathogenicity of a vaccinia recombinant virus expressing the rabies glycoprotein (vvtggrab) was tested in several wild animal species which could compete with the natural rabies host, the red fox (vulpes vulpes) in consuming vaccine baits in europe. the following species were included in this study: wild boar (sus scrofa), eurasian badger (meles meles), wood mouse (apodemus sylvaticus), yellow-necked mouse (apodemus flavicollis), bank vole (clethrionomys glareolus), common vole (microtus arv ... | 1989 | 2681844 |
| corrections in the names of rodent coccidia (apicomplexa, coccidiasina). | the following new taxonomic combinations are introduced for coccidia whose names were previously given erroneously: dorisa bengalensis (bandyopadhyay & ray, 1982) n. comb. from the indian palm squirrel funambulus pennanti in india; eimeria sicistae from the intestine of the birch mouse sicista tianschanica in the ussr; e. hydrochaeri carini, 1937 emend. from the capybara hydrochaerus hydrochaerus in south america; frenkelia sp. (doby, jeannes & rault 1965) from the brain of the water vole arvico ... | 1987 | 3123645 |
| small rodents and other mammals associated with mountain meadows as reservoirs of giardia spp. and campylobacter spp. | sixty-five percent (469 of 722) of the fecal samples collected from small rodents in the central washington cascade mountains were positive for giardia spp. trapping studies showed that microtines of the genus microtus were heavily infected with the parasite. morphologically the cysts and trophozoites were of the giardia duodenalis type. small-rodent populations appear to maintain their infection throughout the year. our data suggest that there is no difference in the percentage of positive anim ... | 1987 | 3310881 |
| volume and ion regulating renal functions in the big gerbil (rhombomys opimus l.) and the water vole (arvicola terrestris l.). | 1. after iso-osmotic salt loading (1% nacl, 1.25% kcl, 0.75% mgcl2 solutions, each load making up 5% body weight) the water voles excreted 66.2% sodium, 84.4% potassium, 18.8% magnesium over a 4 hr period. the big gerbil excreted 20%, 58.9% and 7.1% respectively over the same period. the volume of the water excreted was greater in the case of the water vole. 2. there were no considerable changes in plasma ion concentration in rodents of the species studied after salt loading. 3. the gerbils and ... | 1982 | 6126297 |
| prevalence of pneumocystis carinii delanoë & delanoë, 1912 in rodents in denmark. | pneumocystis carinii has been found in 17 of 90 (19%) wild living trapped brown rats (rattus norvegicus). the positive brown rats originated from about 25% of the trapping localities examined. among brown rats of two breeding stocks, h and s, pneumocysts were found in 43.5% of the h rats, but in none of the s rats. by keeping brown h rats on a low protein diet for 8 weeks, it was possible to augment the prevalence to 53.8%. pneumocystis carinii has furthermore been found in one of eight (12.5%) ... | 1980 | 6965782 |
| safety study of the sag2 rabies virus mutant in several non-target species with a view to its future use for the immunization of foxes in europe. | the safety of the sag2 virus, a low virulence mutant of the sad strain, was investigated in ten species of mammals and seven species of birds liable to consume vaccine baits. these species are the western hedgehog (erinaceus europaeus), the meadow vole (microtus arvalis), the bank vole (clethrionomys glareolus), the water vole (arvicola terrestris), the field mouse (apodemus flavicollis or a. sylvaticus), the norway rat (rattus norvegicus), the european badger (meles meles), the domestic ferret ... | 1996 | 9014291 |
| [the distribution of leptospirae in the icterohaemorrhagiae serogroup]. | the capacity of leptospiras to get acclimated in the organism of unusual hosts has been studied. cultures of icterohaemorrhagiae from musquashes, house mice and field voles have been isolated of leptospirosis sources under intensive epizootics among rats. a possibility to reproduce leptospira carrying by the cultures of leptospirae of serogroup icterohaemorrhagiae in musquashes and water voles has been shown. one can conclude that under icterohemorrhagic leptospirosis musquashes and water voles ... | 1997 | 9221063 |
| investigations of pneumocystosis among humans and rodents in lithuania. | pneumocystosis (pneumocystis carinii pneumonia) is a parasitic disease which in lithuania used to be diagnosed only with the use of pathohistological methods. the aim of our study was to determine prevalence of p. carinii antibodies among children and women, using immunochemical method (elisa) and to find out which groups of patients have higher antibody titres. we also addressed the question of infection with p. carinii among rodents. after investigating 9 species of rodents it was found that m ... | 1997 | 9259608 |
| [infestation of water voles (arvicola terrestris) with metacestodes of echinococcus multilocularis in the canton freiburg (switzerland)]. | the results of an investigation on echinococcus multilocularis-metacestodes in european water voles (arvicola terrestris) are shown. the investigation materials were 28 water voles captured in schermann-traps on a meadow in the canton of fribourg and subsequently maintained in laboratory cages. the animals were patho-anatomically and histo-pathologically examined, a part of them additionally with an e. multilocularis-specific direct immunofluorescence-assay and/or a polymerase-chain-reaction. ra ... | 1997 | 9381111 |
| [genetic-physiologic mother-fetus relationships and their effect on the adaptive traits of the offspring]. | using our own data and literature, we present analysis of genetic-physiological mechanisms providing for stable reproduction of mammals. using multiparous species (such as minks, mice, water voles), we demonstrate that embryonic and early postnatal mortality of the offspring makes a significant contribution to stabilization of the actual fertility rate at a level optimal for the species. studies of phenogenetics of fertility of inbred mice and their hybrids have demonstrated the definitive role ... | 1998 | 9884996 |
| the response of water voles, arvicola terrestris, to the odours of predators. | we investigated the response of water voles to the odours of predators in outdoor enclosures. water voles were given access to two food cages, one containing the odour of a predator and the other containing no odour, and were videotaped for 22 h. sheep odour was also used as a control for novel odour. the predators were american mink, mustela vison, and brown rat, rattus norvegicus. there was no difference in the voles' response to sheep odour and no odour. the voles entered the treatment cages ... | 1999 | 10328797 |
| water vole (arvicola terrestris scherman) density as risk factor for human alveolar echinococcosis. | concern is growing in europe about alveolar echinococcosis (ae) with the increase in grassland rodent and red fox populations, intermediate and definitive hosts for echinococcus multilocularis, respectively. the objective of this study was to assess the influence of rodent densities on human ae distribution. spatial poisson regression analyses were performed with geomorphologic features, landscape composition, climatic characteristics, and water vole density as independent variables. the outcome ... | 1999 | 10548289 |
| leptospira erinacei auriti in a water vole, arvicola amphibius. | | 1964 | 14204096 |
| natural infection of the water vole arvicola terrestris with toxoplasma gondii, on the jura plateau, eastern france. | | 2004 | 15324474 |
| epidemiology of alveolar echinococcosis in southern cantal, auvergne region, france. | alveolar echinococcosis (ae) is a helminth zoonosis which is encountered only in the northern hemisphere. in central france, the auvergne region represents the most western and southern extension of this helminthiasis. in 1999, a human case of ae was diagnosed in the southern part of the cantal department, where ae was supposed absent, and an epidemiological survey was subsequently carried out. the transmission of the zoonosis in the sylvatic and peridomestic definitive hosts was studied, as wel ... | 2004 | 15469627 |
| 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 |
| cluster of capillaria hepatica infections in non-commensal rodents from the canton of geneva, switzerland. | we trapped 664 rodents belonging to five non-commensal species in the canton of geneva, switzerland, and found a significant cluster of capillaria hepatica infections in three species in rural and urbanized areas of the northern part of the canton. c. hepatica infections were discovered in the yellow-necked mouse apodemus flavicollis (n=99) with an overall prevalence (op) of 7.0% and a clustered prevalence (cp) of 20%, in the bank vole clethrionomys glareolus (n=58, op 5.2%; cp 19%), and in the ... | 2005 | 15924224 |
| genetic structure of the cyclic fossorial water vole (arvicola terrestris): landscape and demographic influences. | genetic structure can be strongly affected by landscape features and variation through time and space of demographic parameters such as population size and migration rate. the fossorial water vole (arvicola terrestris) is a cyclic species characterized by large demographic fluctuations over short periods of time. the outbreaks do not occur everywhere at the same time but spread as a wave at a regional scale. this leads to a pattern of large areas (i.e. some hundreds of km2), each with different ... | 2005 | 16029484 |
| influence of geographical scale on the detection of density dependence in the host-parasite system, arvicola terrestris and taenia taeniaeformis. | infection by the cestode taenia taeniaeformis was investigated within numerous cyclic populations of the fossorial water vole arvicola terrestris sampled during 4 years in franche-comté (france). the relative influence of different rodent demographic parameters on the presence of this cestode was assessed by considering (1) the demographic phase of the cycle; (2) density at the local geographical scale (<0.1 km2); (3) mean density at a larger scale (>10 km2). the local scale corresponded to the ... | 2006 | 16329763 |
| investigating the evolutionary history of the pacific northwest mesic forest ecosystem: hypothesis testing within a comparative phylogeographic framework. | we examine the evolution of mesic forest ecosystems in the pacific northwest of north america using a statistical phylogeography approach in four animal and two plant lineages. three a priori hypotheses, which explain the disjunction in the mesic forest ecosystem with either recent dispersal or ancient vicariance, are tested with phylogenetic and coalescent methods. we find strong support in three amphibian lineages (ascaphus spp., and dicampton spp., and plethodon vandykei and p. idahoensis) fo ... | 2005 | 16331838 |
| isolation and characterization of a mhc class ii drb locus in the european water vole (arvicola terrestris). | in so-called model species, such as human and mouse, genes of the major histocompatibility complex (mhc) are characterized by extremely high levels of polymorphism, and it is considered that such diversity is maintained by balancing selection. ;there is now a recognized need to expand studies into nonmodel species to examine whether high mhc diversity is mirrored in natural populations, and to determine the ecological, ethological, and evolutionary processes that underpin balancing selection. to ... | 2006 | 16738936 |
| emmonsia crescens infection in a british water vole (arvicola terrestris). | emmonsia crescens, a dimorphic fungus of the order onygenales, is primarily a pathogen of lower animals and rarely humans. inhaled conidia of e. crescens fail to germinate in the lungs, and instead simply enlarge in lung tissue to become giant adiaspores. we present here the case of fatal emmonsia crescens infection in a wild-caught british water vole (arvicola terrestris). histopathological examination of the animal, which died in captivity, revealed a multifocally extensive granulomatous react ... | 2006 | 16772233 |
| migration and recovery of the genetic diversity during the increasing density phase in cyclic vole populations. | in cyclic populations, high genetic diversity is currently reported despite the periodic low numbers experienced by the populations during the low phases. here, we report spatio-temporal monitoring at a very fine scale of cyclic populations of the fossorial water vole (arvicola terrestris) during the increasing density phase. this phase marks the transition from a patchy structure (demes) during low density to a continuous population in high density. we found that the genetic diversity was effec ... | 2006 | 16842435 |
| [bromadiolone poisoning in foxes]. | bromadiolone is an anticoagulant rodenticide that inhibits the reactivation of vitamin k1 by the enzyme vitamin k1-epoxide reductase. the present case report originated from the application of bromadiolone against water voles (arvicola terrestris) in northeastern switzerland. at least 40 foxes (vulpes vulpes) were found dead after the inappropriate use of a bait that contained 0.02 % bromadiolone. anticoagulant rodenticide poisoning was suspected on the basis of the postmortem examination and su ... | 2006 | 16933704 |
| linking demography and host dispersal to trichuris arvicolae distribution in a cyclic vole species. | spatial structure in the distribution of pathogen infection can influence both epidemiology and host-parasite coevolutionary processes. it may result from the spatial heterogeneity of intrinsic and extrinsic factors, or from the local population dynamics of hosts and parasites. in this study, we investigated the effects of landscape, host dispersal and demography (population abundance and phase of the fluctuation) on the distribution of a gastro-intestinal nematode trichuris arvicolae in the fos ... | 2007 | 17350018 |
| identification of sperm antigens as a first step towards the generation of a contraceptive vaccine to decrease fossorial water vole arvicola terrestris scherman proliferations. | immunocontraceptive strategies have proved to be efficient in controlling fertility of various mammalian species. in the present study we have made the first steps towards the identification of arvicola terrestris sperm antigens that could be used as targets in the development of a contraceptive vaccine to limit the proliferations of this pest rodent. rabbit-raised polyclonal antisera directed against complete a. terrestris spermatozoa were used to identify and characterize on 2d-gels coupled wi ... | 2007 | 17645936 |
| echinococcus multilocularis in belgium: prevalence in red foxes (vulpes vulpes) and in different species of potential intermediate hosts. | echinococcus multilocularis causes a rare but potentially lethal zoonotic infection in humans. this tapeworm is known to be endemic in foxes in several countries of western and central europe. in western europe, the common vole (microtus arvalis) and the water vole (arvicola terrestris) are considered to be the most important intermediate host species of this cestode whereas the red fox is by far the most important final host. the purpose of this study was to provide data on the prevalences in w ... | 2008 | 18164551 |
| multiple parasites mediate balancing selection at two mhc class ii genes in the fossorial water vole: insights from multivariate analyses and population genetics. | we investigated the factors mediating selection acting on two mhc class ii genes (dqa and drb) in water vole (arvicola scherman) natural populations in the french jura mountains. population genetics showed significant homogeneity in allelic frequencies at the dqa1 locus as opposed to neutral markers (nine microsatellites), indicating balancing selection acting on this gene. moreover, almost exhaustive screening for parasites, including gastrointestinal helminths, brain coccidia and antibodies ag ... | 2008 | 18624885 |
| serological evidence of viruses naturally associated with the montane water vole (arvicola scherman) in eastern france. | we surveyed 12 populations of the montane water vole (arvicola scherman), previously known as the fossorial form of the water vole a. terrestris, in eastern france for antibodies (immunoglobulin g) to puumala virus (puuv), lymphocytic choriomeningitis virus (lcmv), and cowpox virus (cpxv). antibodies to puuv were found in 9 (5.5%) of 164 voles from 7 populations, antibodies to lcmv were found in 13 (26.0%) of 50 voles from 2 populations, and antibodies to cpxv were found in 66 (41.8%) of 158 vol ... | 2008 | 18752422 |
| major histocompatibility complex (mhc) heterozygote superiority to natural multi-parasite infections in the water vole (arvicola terrestris). | the fundamental role of the major histocompatibility complex (mhc) in immune recognition has led to a general consensus that the characteristically high levels of functional polymorphism at mhc genes is maintained by balancing selection operating through host-parasite coevolution. however, the actual mechanism by which selection operates is unclear. two hypotheses have been proposed: overdominance (or heterozygote superiority) and negative frequency-dependent selection. evidence for these hypoth ... | 2009 | 19129114 |
| [semi-aquatic animals as a source of water contamination with cryptosporidium and giardia]. | cryptosporidium and giardia spp. are parasitic protozoa localized in the alimentary tract of many animal species and humans. each of these parasite species produces very resistant invasive forms (cysts and oocysts) excreted to the environment with feces of infected hosts. water contaminated with cysts/oocysts constitutes one of the main transmission routes and is responsible for the majority of infections in humans. cryptosporidium and giardia spp. were found in many different species of animals ... | 2008 | 19338222 |
| do rabbits eat voles? apparent competition, habitat heterogeneity and large-scale coexistence under mink predation. | habitat heterogeneity is predicted to profoundly influence the dynamics of indirect interspecific interactions; however, despite potentially significant consequences for multi-species persistence, this remains almost completely unexplored in large-scale natural landscapes. moreover, how spatial habitat heterogeneity affects the persistence of interacting invasive and native species is also poorly understood. here we show how the persistence of a native prey (water vole, arvicola terrestris) is d ... | 2009 | 19708968 |
| the celtic fringe of britain: insights from small mammal phylogeography. | recent genetic studies have challenged the traditional view that the ancestors of british celtic people spread from central europe during the iron age and have suggested a much earlier origin for them as part of the human recolonization of britain at the end of the last glaciation. here we propose that small mammals provide an analogue to help resolve this controversy. previous studies have shown that common shrews (sorex araneus) with particular chromosomal characteristics and water voles (arvi ... | 2009 | 19793757 |
| extraintestinal helminths of the common vole (microtus arvalis) and the water vole (arvicola terrestris) in western austria (vorarlberg). | between september and december 2004, a total of 411 voles (318 common voles and 93 water voles) were caught in the austrian province of vorarlberg (lustenau, hohenems, and dornbirn) and were examined by macroscopy, microscopy, and molecular biological analysis to determine the presence and extent of medically important extraintestinal helminths. the following extraintestinal helminth species were detected: taenia taeniaeformis (liver), calodium hepaticum (liver), and echinococcus multilocularis ... | 2010 | 20148339 |
| detection of toxoplasma gondii, neospora caninum, and encephalitozoon cuniculi in the brains of common voles (microtus arvalis) and water voles (arvicola terrestris) by gene amplification techniques in western austria (vorarlberg). | knowledge about the protozoan parasite fauna in voles (arvicolinae) in austria is rather limited, although some of these pathogens play an important role in human medicine and cause zoonoses (e.g., toxoplasma gondii and encephalitozoon cuniculi). others are of relevance in veterinary medicine and have a negative economic impact (e.g., neospora caninum). two hundred sixty-eight common voles (microtus arvalis) and 86 water voles (arvicola terrestris) from the most western austrian province, vorarl ... | 2010 | 20480373 |
| age, season and spatio-temporal factors affecting the prevalence of echinococcus multilocularis and taenia taeniaeformis in arvicola terrestris. | taenia taeniaeformis and the related zoonotic cestode echinococcus multilocularis both infect the water vole arvicola terrestris. we investigated the effect of age, spatio-temporal and season-related factors on the prevalence of these parasites in their shared intermediate host. the absolute age of the voles was calculated based on their eye lens weights, and we included the mean day temperature and mean precipitation experienced by each individual as independent factors. | 2011 | 21247427 |
| [the postnatal ontogeny of gonadal endocrine function in the water vole arvicola terrestris with differing coat colors]. | | 2001 | 2193473 |
| birds and bornaviruses. | in 2008, avian bornaviruses (abv) were identified as the cause of proventricular dilatation disease (pdd). pdd is a significant condition of captive parrots first identified in the late 1970s. abv infection has subsequently been shown to be widespread in wild waterfowl across the united states and canada where the virus infects 10-20% of some populations of ducks, geese and swans. in most cases birds appear to be healthy and unaffected by the presence of the virus; however, infection can also re ... | 2012 | 23253163 |
| [hantaviruses in germany: threat for zoo, pet, companion and farm animals?]. | hantaviruses are so-called "emerging" and "re-emerging" viruses because of the new and sudden nature of their appearance. human infections can lead to two distinct disease patterns, the haemorrhagic fever with renal syndrome and the hantavirus cardiopulmonary syndrome. all known human pathogenic hantaviruses are transmitted through rodent hosts. there are three rodent-associated hantaviruses in germany. the bank vole-associated puumala virus (puuv) is responsible for most of the human hantavirus ... | 2014 | 24511827 |
| high genetic structuring of tula hantavirus. | tula virus (tulv) is a vole-associated hantavirus with low or no pathogenicity to humans. in the present study, 686 common voles (microtus arvalis), 249 field voles (microtus agrestis) and 30 water voles (arvicola spec.) were collected at 79 sites in germany, luxembourg and france and screened by rt-pcr and tulv-igg elisa. tulv-specific rna and/or antibodies were detected at 43 of the sites, demonstrating a geographically widespread distribution of the virus in the studied area. the tulv prevale ... | 2016 | 26831932 |
| tula virus infections in the eurasian water vole in central europe. | recent reports of novel hantaviruses in shrews and moles and the detection of rodent-borne hantaviruses in different rodent species raise important questions about their host range and specificity, evolution, and host adaptation. tula virus (tulv), a european hantavirus, is believed to be slightly or non-pathogenic in humans and was initially detected in the common vole microtus arvalis, the east european vole m. levis (formerly rossiaemeridionalis), and subsequently in other microtus species. h ... | 2012 | 22225425 |
| [the morphological variability coordinated with the population cycle of the widely distributed (the water vole arvicola terrestris l.) and mountain (the big-eared vole alticola macrotis radde) vole species]. | this paper presents an analysis of variation of skull size and shape in the course of population cycles of two ecologically different vole species: water vole and high-mountain vole. we have found consistent changes of the direction, rate, and balance of morphogenesis during population cycles. we discuss the role of intra-populational factors and inter-populational variation during the territorial expansion of the species. | 2016 | 10780114 |
| the role of neighborhood relations in maintenance of the spatial-ethological structure of local settlements as exemplified by the water vole (arvicola amphibius). | adult males of the water vole have been found experimentally to recognize their neighbors and react to them differently depending on the degree of spatial proximity in nature. most tensions (estimated by the number of aggressive acts in the encounters) were observed between distant neighbors (from neighboring settlements), which did not belong to the same groups with established hierarchy and a relatively reduced aggression. these are probably perceived as the most likely competitors (because of ... | 2016 | 27595823 |
| the colonization history of british water vole (arvicola amphibius (linnaeus, 1758)): origins and development of the celtic fringe. | the terminal pleistocene and early holocene, a period from 15 000 to 18 000 before present (bp), was critical in establishing the current holarctic fauna, with temperate-climate species largely replacing cold-adapted ones at mid-latitudes. however, the timing and nature of this process remain unclear for many taxa, a point that impacts on current and future management strategies. here, we use an ancient dna dataset to test more directly postglacial histories of the water vole (arvicola amphibius ... | 2016 | 27122559 |
| influence of reproductive status: home range size in water voles (arvicola amphibius). | the relationship between home range and reproductive status of water voles (arvicola amphibius) was studied by radio-tracking on an island off the coast of northern norway in 2006-2009. the aim was to test assumptions about the species' social structure relative to other microtines. juveniles used fairly small ranges (about 400 m²), with no difference between males and females. subadults, overwintered voles in april, had ranges similar to juveniles. reproductively active males (mean 2774.0 m²) i ... | 2016 | 27115881 |
| the presence of strange males' odor induces behavioral responses and elevated levels of low molecular weight proteins excreted in the urine of mature water vole males (arvicola amphibius l). | we hypothesized that low molecular weight urinary proteins play a role in male-male chemical communication in the water vole, arvicola ampibius l. we studied the effect of placing soiled litter from strange males into the cage of another sexually mature male on the intensity of its digging and scattering, urination on the litter, and alteration in the levels of low molecular weight proteins (15-25 kda) excreted in the urine before and after 4 days of exposure as determined by chip electrophoresi ... | 2016 | 26994612 |
| genome-wide comparative chromosome maps of arvicola amphibius, dicrostonyx torquatus, and myodes rutilus. | the subfamily arvicolinae consists of a great number of species with highly diversified karyotypes. in spite of the wide use of arvicolines in biological and medicine studies, the data on their karyotype structures are limited. here, we made a set of painting probes from flow-sorted chromosomes of a male palearctic collared lemming (dicrostonyx torquatus, dto). together with the sets of painting probes made previously from the field vole (microtus agrestis, mag) and golden hamster (mesocricetus ... | 2016 | 26611440 |
| leptospirosis acquisition following the reintroduction of wildlife. | potential risks posed to domestic animals and human beings by zoonotic diseases in reintroduced animals can reduce the acceptability of reintroductions. the authors investigated the role of endangered water voles, arvicola amphibius, as a host for leptospirosis, a waterborne zoonosis affecting a range of mammals. based on samples from 112 individuals from across the uk, a 6.2 per cent exposure rate was found (7 animals were microscopic agglutination test (mat) positive for serum antibodies), wit ... | 2015 | 26483277 |
| [correlations of reproductive parameters of water vole females (arvicola amphibius) with morphometric and hormonal characteristics]. | fluctuations in water vole population size depend on abiotic and intra-population factors affecting the physiological condition of females. the relationship between variability in reproductive success and morpho-physiological characteristics of female during pregnancy is studied quite poorly. in standard vivarium conditions, the morphometric and hormonal characteristics of female were assessed at different stages of pregnancy (first trimester--days 4-7, second trimester--days 8-14, third semeste ... | 2015 | 26027386 |
| differential sex-dependent postimplantation embryo mortality of the water vole (arvicola amphibius). | | 2014 | 24659290 |
| [dynamics of morphophysiological characteristics in female water voles (arvicola amphibius l.) during pregnancy]. | pregnancy and lactation need increased energy consumption and are accompanied by morphological and physiological changes of various maternal organs and systems. in water voles, connection of female interior characteristics has been poorly studied. under standard vivarium conditions, we evaluated morphophysiological parameters of non-reproducing females and of females at the early (1-7 days), intermediate (8-14 days), and late (15-21 days) stages of pregnancy. there were established effect of the ... | 2014 | 24459863 |
| effects of seasonal, ontogenetic, and genetic factors on lifespan of male and female progeny of arvicola amphibius. | the water vole (arvicola amphibius) in the forest-steppe of west siberia is known to have wide fluctuations in abundance. these fluctuations are accompanied by changes in birth and death rates, sex-age structure of the population, and individual morphophysiological and behavioral characteristics of the animals. survival of the animals depends on season, phase of population cycle, and sex. based on the data of long-term captive breeding of water voles, the maximal lifespan of males was found to b ... | 2013 | 23802009 |
| effective control of non-native american mink by strategic trapping in a river catchment in mainland britain. | the introduction of american mink (neovison vison; hereafter mink) into europe has had severe impacts on many native wildlife species, including the water vole (arvicola amphibius) in mainland britain. although trapping has been widely used to attempt to control mink, managers have little direct evidence of its effect on mink density or distribution, particularly where immigration of mink from nearby areas is inevitable. such evidence is needed to justify the use of lethal methods in conservatio ... | 2013 | 23761940 |
| genetic variability and structure of the water vole arvicola amphibius across four metapopulations in northern norway. | water vole arvicola amphibius populations have recently experienced severe decline in several european countries as a consequence of both reduction in suitable habitat and the establishment of the alien predator american mink neovison vison. we used dna microsatellite markers to describe the genetic structure of 14 island populations of water vole off the coast of northern norway. we looked at intra- and inter-population levels of genetic variation and examined the effect of distance among pairs ... | 2013 | 23610623 |
| multi-scale processes in metapopulations: contributions of stage structure, rescue effect, and correlated extinctions. | metapopulations function and persist through a combination of processes acting at a variety of spatial scales. although the contributions of stage structure, spatially correlated processes, and the rescue effect to metapopulation dynamics have been investigated in isolation, there is no empirical demonstration of all of these processes shaping dynamics in a single system. dispersal and settlement differ according to the life stage involved; therefore, stage-specific population size may outperfor ... | 2012 | 23236917 |
| the repelling effect of plant secondary metabolites on water voles, arvicola amphibius. | water voles (arvicola amphibius linnaeus 1758) are abundant in most parts of germany and other european countries. they are known to cause serious damage in fruit and horticulture as well as in agriculture. currently available repellents, scaring devices and household remedies are mostly inefficient. tests were conducted to establish whether water voles can be repelled using plant secondary metabolites. these compounds are produced by many plant species as part of their defence against herbivore ... | 2013 | 23225271 |
| the ability to accumulate fat reserves during pregnancy inherited in the maternal line increases the viability and reproductive potential of daughters: an example of water voles arvicola amphibius. | | 2016 | 22945535 |
| measuring animal welfare within a reintroduction: an assessment of different indices of stress in water voles arvicola amphibius. | reintroductions are an increasingly common conservation restoration tool; however, little attention has hitherto been given to different methods for monitoring the stress encountered by reintroduced individuals. we compared ten potential measures of stress within four different categories (neuroendocrine, cell function, body condition and immune system function) as proxies for animal welfare in water voles being reintroduced to the upper thames region, oxfordshire, uk. captive-bred voles were as ... | 2012 | 22815923 |
| [thermal neutral point and basal metabolism of the water vole (arvicola amphibius)]. | | 1968 | 4238162 |
| heterogeneous road networks have no apparent effect on the genetic structure of small mammal populations. | roads are widely recognized to represent a barrier to individual movements and, conversely, verges can act as potential corridors for the dispersal of many small mammals. both barrier and corridor effects should generate a clear spatial pattern in genetic structure. nevertheless, the effect of roads on the genetic structure of small mammal populations still remains unclear. in this study, we examine the barrier effect that different road types (4-lane highway, 2-lane roads and single-lane unpave ... | 2016 | 27219505 |
| influence of land mosaic composition and structure on patchy populations: the case of the water vole (arvicola sapidus) in mediterranean farmland. | the ability of patchy populations to persist in human-dominated landscapes is often assessed using focal patch approaches, in which the local occurrence or abundance of a species is related to the properties of individual patches and the surrounding landscape context. however, useful additional insights could probably be gained through broader, mosaic-level approaches, whereby whole land mosaics with contrasting patch-network and matrix characteristics are the units of investigation. in this stu ... | 2013 | 23875014 |
| prisoners in their habitat? generalist dispersal by habitat specialists: a case study in southern water vole (arvicola sapidus). | habitat specialists inhabiting scarce and scattered habitat patches pose interesting questions related to dispersal such as how specialized terrestrial mammals do to colonize distant patches crossing hostile matrices. we assess dispersal patterns of the southern water vole (arvicola sapidus), a habitat specialist whose habitat patches are distributed through less than 2% of the study area (overall 600 km²) and whose populations form a dynamic metapopulational network. we predict that individuals ... | 2011 | 21931775 |
| structure, organization and nucleotide diversity of the mitochondrial control region and cytochrome b of southern water vole (arvicola sapidus). | the southern water vole (arvicola sapidus miller, 1908) is an endangered rodent whose conservation guidelines should preserve the current genetic variability. we analyze the structure and organization of the mitochondrial control region (cr) in a. sapidus. the cr of this species is characterized by a low guanine-cytosine content, the absence of any repetitive motif within the two hypervariable regions, and the presence of the two extended termination-associated sequences and conserved sequence b ... | 2010 | 20334495 |
| phylogeography of southern water vole (arvicola sapidus): evidence for refugia within the iberian glacial refugium? | the role of southern european peninsulas as glacial refugia for temperate species has been widely established, but phylogeographic patterns within refugia are being only recently addressed. here we describe the phylogeographic patterns for southern water vole (arvicola sapidus) in its whole distribution across iberia and france. control region and cytochrome b sequences were obtained for 228 samples from 130 localities across iberia and france. eighty-five haplotypes were found in total yielding ... | 2009 | 19674304 |
| negative relationships between cellular immune response, mhc class ii heterozygosity and secondary sexual trait in the montane water vole. | heterogeneities in immune responsiveness may affect key epidemiological parameters and the dynamics of pathogens. the roles of immunogenetics in these variations remain poorly explored. we analysed the influence of major histocompatibility complex (mhc) genes and epigamic traits on the response to phytohaemagglutinin in males from cyclic populations of the montane water vole (arvicola scherman). besides, we tested the relevance of lateral scent glands as honest signals of male quality. our resul ... | 2010 | 25567924 |
| stress and demographic decline: a potential effect mediated by impairment of reproduction and immune function in cyclic vole populations. | the stress response is initially adaptive, operating to maintain homeostasis. however, chronic long-term exposure to stressors may have detrimental effects. we proposed that chronic stress may be a major factor in demographic vole cycles, inducing decline in high-density populations. we monitored four populations of the fossorial water vole arvicola scherman, which undergo pluriannual demographic cycles in the jura mountains (france). sampling was conducted during the high densities and the decl ... | 2013 | 18040973 |
| [the environmental bases and mechanism for natural opisthorchiasis focus pulsation in the combined focus of opisthorchiasis and tularemia]. | a cyclic change in the epizootic activity of a tularemia activity underlies the mechanism of natural opisthorchiasis focus pulsation in the combined focus of opisthorchiasis and tularemia in the ecosystem of the konda river. this is due to mass breeding and depression in the water vole (arvicola terrestris) population. the mass breeding is predetermined by high population reproduction constants. the rodents' potential fecundity occurs with the high capacity of lands, which is caused by the hydro ... | 2015 | 26152031 |
| unintentional wildlife poisoning and proposals for sustainable management of rodents. | in europe, bromadiolone, an anticoagulant rodenticide authorized for plant protection, may be applied intensively in fields to control rodents. the high level of poisoning of wildlife that follows such treatments over large areas has been frequently reported. in france, bromadiolone has been used to control water voles (arvicola terrestris) since the 1980s. both regulation and practices of rodent control have evolved during the last 15 years to restrict the quantity of poisoned bait used by farm ... | 2014 | 24405288 |
| [early embryonic mortality in water vole (arvicola terrestris l.)]. | a morphological study of forty-eight 3-4-day embryos from eight females of the water vole (arvicola terrestris l.) was conducted. the data obtained demonstrated that early embryonic losses in the water vole can be 30-35%, and the main cause of these losses is anomalies of oogenesis. | 2013 | 23035586 |
| a synaptonemal complex-derived mechanism for meiotic segregation precedes the evolutionary loss of homology between sex chromosomes in arvicolid mammals. | synapsis and reciprocal recombination between sex chromosomes are restricted to the pseudoautosomal region. in some animal species, sex chromosomes do not present this region, although they utilize alternative mechanisms that ensure meiotic pairing and segregation. the subfamily arvicolinae (rodentia, cricetidae) includes numerous species with achiasmate sex chromosomes. in order to know whether the mechanism involved in achiasmate segregation is an ancient feature in arvicolid species, we have ... | 2012 | 22552439 |
| [correlation between urine malondialdehyde level and males reproductive success in the water vole (arvicola terrestris l.)]. | the study was conducted in water vole (arvicola terrestris l.) reared and bred in captivity. during the breeding season, voles were caged in heterosexual pairs for two weeks. if mating did not occur, new pairs were formed with unfamiliar partners. in the end of the breeding season, the individual male's reproductive characteristics were summarized, and the level of malondialdehyde (mda) in their urine was assessed. as indicated by urine mda concentration, the intensity of lipid peroxidation in m ... | 2010 | 21473111 |
| determination of bromadiolone residues in fox faeces by lc/esi-ms in relationship with toxicological data and clinical signs after repeated exposure. | in many countries, the fox (vulpes vulpes), predator of small mammals, is particularly affected by anticoagulant rodenticides such as bromadiolone due to secondary poisoning. nevertheless, to date, no method of exposure monitoring is applicable in the field over large areas, and no toxicological data are available concerning sensitivity of foxes to bromadiolone. the aim of this work was to compare excretion kinetics of bromadiolone in fox faeces with clinical and haemostatic effects after repeat ... | 2010 | 20692656 |
| estimating the value of non-use benefits from small changes in the provision of ecosystem services. | the unit of trade in ecosystem services is usually the use of a proportion of the parcels of land associated with a given service. valuing small changes in the provision of an ecosystem service presents obstacles, particularly when the service provides non-use benefits, as is the case with conservation of most plants and animals. quantifying non-use values requires stated-preference valuations. stated-preference valuations can provide estimates of the public's willingness to pay for a broad cons ... | 2010 | 20560999 |
| [physical state of mother at the period of pregnancy and sexual maturation of descendants-sons of the water vole (arvicola terrestris l.)]. | the role of characteristics of the maternal medium (the mother's physical state at periods of pregnancy and lactation, calendar terms of birth, the number of pups, and the ratio of sexes in the litter) has been elucidated in regulation of growth and the sexual maturation of the water vole male pups. the anogenital distance was used as an indirect supravital evaluation of the mass of testicles. the physical state of females was estimated by a change of the body mass at the period of pregnancy or ... | 2010 | 20432709 |
| captive housing during water vole (arvicola terrestris) reintroduction: does short-term social stress impact on animal welfare? | animals captive bred for reintroduction are often housed under conditions which are not representative of their preferred social structure for at least part of the reintroduction process. specifically, this is most likely to occur during the final stages of the release programme, whilst being housed during transportation to the release site. the degree of social stress experienced by individuals during this time may negatively impact upon their immunocompetence. | 2010 | 20352093 |
| spatio-temporal variation in the strength and mode of selection acting on major histocompatibility complex diversity in water vole (arvicola terrestris) metapopulations. | patterns of spatio-temporal genetic variation at a class ii major histocompatibility complex (mhc) locus and multiple microsatellite loci were analysed within and between three water vole metapopulations in scotland, uk. comparisons of mhc and microsatellite spatial genetic differentiation, based on standardised tests between two demographically asynchronous zones within a metapopulation, suggested that spatial mhc variation was affected by balancing selection, directional selection and random g ... | 2009 | 19140966 |
| kinetics of bromadiolone in rodent populations and implications for predators after field control of the water vole, arvicola terrestris. | we document the kinetics of bromadiolone in two rodent populations after a field control of water voles, and their implications for predator exposure. water voles and common voles were trapped aboveground and underground from 1 to 135 days after bromadiolone treatment in the field. livers, digestive tracts, and rests of the body were analyzed separately. our results indicate that 99.6% of the water voles trapped underground and 41% of the common voles trapped aboveground contain bromadiolone res ... | 2008 | 18954894 |
| [effect of mother's physical condition during pregnancy and lactation on postnatal growth and reproductive success of offspring in water vole arvicola terrestris l]. | postnatal growth, life span, and probability of reproduction in the adult state depended on the mother's physical condition during pregnancy and lactation in water vole. the white fat weight in the female abdominal cavity was shown to significantly increase in pregnancy and to decrease in late lactation. as an indicators for nutritional state of females, their body weight difference after parturition (or in late lactation) and expected from the regression equation relating individual body weight ... | 2008 | 18669294 |
| effects of forage availability on growth and maturation rates in water voles. | 1. in populations of small mammals, food supplementation typically results in higher population densities, body weights, growth rates and reproductive rates. however, few studies have demonstrated a relationship between forage levels and demographic rates in wild populations in the absence of supplementation. 2. we examined the association of levels of available forage with individual growth rates and time to sexual maturity in eight re-introduced and three naturally occurring populations of wat ... | 2008 | 18624743 |
| density-related changes in selection pattern for major histocompatibility complex genes in fluctuating populations of voles. | host-pathogen interactions are of particular interest in studies of the interplay between population dynamics and natural selection. the major histocompatibility complex (mhc) genes of demographically fluctuating species are highly suitable markers for such studies, because they are involved in initiating the immune response against pathogens and display a high level of adaptive genetic variation. we investigated whether two mhc class ii genes (dqa1, drb) were subjected to contemporary selection ... | 2007 | 17956550 |
| sexual maturation of daughters depends on the mother's body condition during pregnancy: an example of the water vole arvicola terrestris l. | | 2016 | 17515043 |
| numerical response of a helminth community in the course of a multi-annual abundance cycle of the water vole (arvicola terrestris). | the impact of parasitism on population dynamics is determined in part by the numerical responses of parasites during population fluctuations of their hosts. vole populations fluctuate in multi-annual cycles allowing such responses to be studied over successive phases of population growth, abundance and decline. we investigate how a helminth community (5 nematode and 7 cestode species) evolved over a full 6-year water vole (arvicola terrestris) population cycle. brillouin and individual parasite ... | 2007 | 17234045 |
| widespread gene flow and high genetic variability in populations of water voles arvicola terrestris in patchy habitats. | theory predicts that the impact of gene flow on the genetic structure of populations in patchy habitats depends on its scale and the demographic attributes of demes (e.g. local colony sizes and timing of reproduction), but empirical evidence is scarce. we inferred the impact of gene flow on genetic structure among populations of water voles arvicola terrestris that differed in average colony sizes, population turnover and degree of patchiness. colonies typically consisted of few reproducing adul ... | 2006 | 16629803 |
| prevalence of anomalies in the appendicular skeleton of a fossorial rodent population. | the prevalence of macroscopic bone anomalies in the appendicular skeleton of wild rodents and, particularly, fossorial species is not well known. we examined 8,257 bones corresponding to 564 collection specimens (249 males and 315 females) of a fossorial form of water vole (arvicola terrestris monticola). animals were obtained monthly from july 1983 to december 1984 in the aran valley (pyrenees). most macroscopic anomalies were healed fractures or exostoses. the prevalence of anomalies was not s ... | 2005 | 16456161 |
| [influence of the phase of the number and demographic structure of the water vole population on its infection by helminthes]. | in this work we have analyzed results of the long-term investigations of the helminthes distribution in the various demography groups of the water vole population (arvicola terrestris l.) in north baraba (novosibirsk region). the data on the dominant parasites of these rodents: trematodes notocotylus noyeri (joyeux, 1922), cestodes limnolepis transfuga spassky et merkuscheva, 1967, nematodes capillaria wioletti ruchljadeva, 1950, longistriata minuta (dujarden, 1845) and heligmosomum costellatum ... | 2007 | 16316057 |
| phylogeographic structure and postglacial evolutionary history of water voles (arvicola terrestris) in the united kingdom. | the phylogeographic pattern of mitochondrial dna variation in water voles (arvicola terrestris) from 57 localities across the united kingdom and representative samples from spain, france, switzerland and finland was determined from sequence variation in the central portion of the control region. twenty-seven different haplotypes were resolved which formed two distinct phylogenetic clades. this major division separated haplotypes found in scotland from those found in england and wales. nested cla ... | 2005 | 15813782 |
| [parasite fauna of the water vole (arvicola terrestris) and its nests in the south of western siberia]. | fauna of parasitic and free-living arthropods associated the water vole arvicola terestris and its nests in various landscape zones and subzones of the south of western siberia has been studied. total abundance of gamasid mites and ticks (gamasoidea, ixodidae), fleas and nidicolous arthropods in nests is high, and the set of nidicolous and parasite species is quite diverse, but everywhere the parasite fauna is characterized by a small amount of species reaching a high abundance: laelaps muris on ... | 2013 | 15069877 |
| parentage assignment detects frequent and large-scale dispersal in water voles. | estimating the rate and scale of dispersal is essential for predicting the dynamics of fragmented populations, yet empirical estimates are typically imprecise and often negatively biased. we maximized detection of dispersal events between small, subdivided populations of water voles (arvicola terrestris) using a novel method that combined direct capture-mark-recapture with microsatellite genotyping to identify parents and offspring in different populations and hence infer dispersal. we validated ... | 2003 | 12803643 |
| morphogenetic response of the water vole (arvicola terrestris l.) to atypical environmental conditions. | | 2016 | 11013847 |
| the relationship between coat color variation and population dynamics in the water vole (arvicola terrestris l.). | | 2016 | 10944724 |
| [effect of prenatal stress on the hypothalamo-hypophyseal-adrenal system activity and fat metabolism in the male water vole arvicola terrestris]. | the hpa axis function and the fat metabolism were studied in adult male water voles born to intact mothers and mothers deprived of food on the 15th and 18th days of their pregnancy. the hpa response to emotional stress was relatively low in experimental males in winter. the hormonal response to a 24-hrs food deprivation diminished in experimental group only in february. the blood level of free fatty acids was increased in experimental group as compared to the control one. the short maternal food ... | 1999 | 10643607 |
| agouti locus may influence reproduction under food deprivation in the water vole (arvicola terrestris). | the effect of 16-hr food deprivation on day 3 and again on day 5 of pregnancy on the fecundity of female water voles homozygous (ae/ae) or heterozygous (a/ae) for, an allele at the agouti (a) locus, non agouti extreme (ae) was studied. 63 a/ae females (mated to ae/ae males) produced 115 food-deprived and 115 control pregnancies, and 52 ae/ae females (mated to a/ae males) produced 55 food-deprived and 57 control pregnancies. regardless of the experimental group, pregnant ae/ae females weighed les ... | 1999 | 10194864 |
| isolation and characterization of highly polymorphic microsatellites in the water vole, arvicola terrestris. | | 1998 | 9734085 |
| [effect of population stress on the frequency of white-spotted water voles (arvicola terrestris l.)]. | | 1998 | 9541809 |
| [reproductive success after hibernation of the female water vole (arvicola terrestris l.) of the different constitution types]. | | 1997 | 9376809 |
| [genetic-ecology monitoring of cycling populations of water voles (arvicola terrestris l.) in the south of western siberia]. | long-term studies on the role of the structural and functional organization of a population in reproduction control showed that the optimum level of reproduction is maintained via a complex of ethological, physiological, and genetic mechanisms. the coat color genes have a pleiotropic effect on the reproductive capacity of females and the potential for social dominance in males. the relative reproductive success of brown water voles is greater when the population size increases, whereas dark-brow ... | 1997 | 9378306 |
| effects of food deprivation in early pregnancy on the development of ovaries and adrenals in female progeny of the water vole (arvicola terrestris). | the effects of maternal food deprivation for 16 hr on day 3 and again on day 5 of pregnancy on the development of adrenals and ovaries in the female offspring during postnatal life (8, 21, 30 and 60 days after birth) were examined. experimental and control groups consisted of 6-15 animals. on day 8, the daughters of the deprived mothers had lower body weight than the control animals. later, the differences between the groups disappeared. maternal food deprivation alters the prepubertal dynamics ... | 1997 | 9080677 |
| [reproduction of the water voles (arvicola terrestris) polymorphic for the aguti locus]. | reproduction of three coat-color genotypes:brown, aa (homozygotes for the wild type agouti allele); melanic, aeae (homozygotes for the autosomal recessive extreme nonagouti allele); and black-brown, aae (heterozygotes)-in the water vole was investigated under laboratory conditions. nine possible kinds of crosses were identified. the aae and aeae females had higher fertility than brown aa females, while males of all three group displayed similar fertility. aa and aeae females started breeding ear ... | 1996 | 8964483 |