nematodes of the family heligmonellidae (trichostrongyloidea) collected from rodents of the ryukyu archipelago and taiwan. | six species of the family heligmonellidae (nematoda: trichostrongyloidea), including 3 new species, are recorded from rodents of the subfamily murinae in the ryukyu archipelago and taiwan. heligmonoides ikeharai n. sp. from tokudaia osimensis muenninki on mt. yonaha, okinawa island, is characterized by extremely long spicules and hypertrophied ridges in the prevulval region. heligmonoides taiwanensis n. sp. from apodemus draco on mt. alishan, taiwan, is distinguished from other members of the ge ... | 1990 | 2380855 |
genetic diversity of hantaviruses isolated in china and characterization of novel hantaviruses isolated from niviventer confucianus and rattus rattus. | the antigenic and genetic properties of 46 hantaviruses from china, 13 from patients, 23 from rodents, and 10 from unknown hosts, were compared with those of other hantaviruses. the viruses were classified as either hantaan (htn) or seoul (seo) viruses. a phylogenetic analysis of the partial m (300 bp) and s (around 485 bp) genomes of htn viruses identified nine distinct genetic subtypes, one consisting of isolates from korea. the seo viruses were divided into five genetic subtypes, although the ... | 2000 | 11118357 |
borrelia sinica sp. nov., a lyme disease-related borrelia species isolated in china. | a survey was performed for lyme disease borrelia in the southern part of china, in zhejiang, sichuan and anhui provinces, along the yangtze river valley, in may of 1997 and 1998. twenty isolates from ixodes granulatus, ixodes ovatus, apodemus agrarius and niviventer confucianus were obtained. these isolates were characterized by rflp of the 5s-23s rdna intergenic spacer, sequence analysis of the intergenic spacer, 16s rdna and flagellin gene, dna-dna hybridization analysis, sds-page and western ... | 2001 | 11594614 |
[preliminary investigation on reservoir hosts of borrelia burgdorferi in china]. | from 1987 to 1997, the reservoir hosts of borrelia burdorferi(b.b.) were investigated in 16 provinces, municipalities and autonomous regions of china. seroepidemiological findings indicated that cattle, sheep, dogs and rats from forest areas had a high antibody titer for b.b. (b31) with positive rates of 18.18%-32.61%, 17.12%-61.21%, 38.50-60.00% and 41.18%-86.05% respectively. using bsk medium, 20 strains of b.b. were isolated from apodemus agrarius, clethrionomys rufocanus, eutamias sibiricus, ... | 1999 | 12712735 |
chromosomal polymorphisms due to heterochromatin growth and pericentric inversions in white-bellied rat, niviventer confucianus, from china. | different cytogenetic techniques were used to analyze the chromosomes of white-bellied rat, niviventer confucianus from mt. tai and jinan, shandong province and ningshan, shaanxi province of china. shandong populations have 2n = 46 chromosomes with 4 metacentric, 2 subtelocentric, 16 telocentric pairs of autosomes and the submetacentric x and telocentric y. the chromosomal arm number (nf) of the two populations was 56. shaanxi population has 2n = 46 chromosomes with 4 metacentric, 1 submetacentr ... | 2003 | 12830986 |
[diversity of ectoparasites on niviventer confucianus in the surrounding areas of erhai lake]. | to understand the species diversity of ectoparasites on niviventer confucianus in the surrounding areas of erhai lake. | 2009 | 19852368 |
[ectoparasites of niviventer confucianus in the surrounding areas of erhai lake in yunnan, china]. | | 2009 | 19957613 |
detection of bartonella species in small mammals from zhejiang province, china. | to estimate the prevalence of bartonella in small mammals of different species, during different seasons, and at different study sites, and to provide baseline data for the risk assessment of human bartonella infection, we captured small mammals using snap traps in zhejiang province, china. bartonella species were detected in small-mammal samples by polymerase chain reaction and positive amplicons were sequenced. bartonella dna was detected in 47% (90/192) of apodemus agrarius, 31% (14/45) of ra ... | 2010 | 20090031 |
a new species of chigger mite (acari: trombiculidae) from rodents in southwest china. | this paper describes a new species of chigger mite (acari: trombiculidae), gahrliepia cangshanensis n. sp., from rodents in southwest china. the specimens were collected from yunnan red-backed voles, eothenomys miletus (thomas, 1914), and a chinese white-bellied rat, niviventer confucianus (milne-edwards, 1871) in yunnan province. the new species is unique mainly in its number of dorsal setae (n=21), and it has the following features: ft (formula of palpotarsus)=4b (b=branched), fp (formula of p ... | 2014 | 24623884 |
[the natural foci of the tsutsugamushi disease in the suburbs of hang zhou city]. | in 1986, investigating tsutsugamushi disease in the suburbs of hangzhou, we isolated rickettsia tsutsugamushi from leptotrombidium gaohuense and its reservoir hosts, rattus confucianus and rattus fulvescens, which were collected in yang shan wu village, linan county. it proved there was a natural focus of tsutsugamushi disease in the suburbs of hang zhou. which is located at 30 degrees 35'. north latitude, and main forest of the east tianmu mountain, covered by wide and needle leaves, with more ... | 1990 | 2115400 |
differentiation in seed hoarding among three sympatric rodent species in a warm temperate forest. | although seed hoarding by rodents has been extensively studied, differentiation in seed-hoarding behaviors among sympatric rodent species has not been well investigated. using semi-natural enclosures, we demonstrated that three sympatric rodent species showed clear differentiation in food selection, scatter versus larder hoarding behaviors and eating behaviors when offered seeds of four plant species from a warm temperate forest in northern china. the large field mouse apodemus peninsulae prefer ... | 2008 | 21396061 |
genetic analysis of a hantavirus strain carried by niviventer confucianus in yunnan province, china. | hantavirus genome sequences were recovered from lung tissues of chinese white-bellied rats (niviventer confucianus) captured in yunnan province, china. pairwise comparison of the nucleotide and deduced amino acid sequences of the entire s and partial m and l segments indicated that the newly discovered virus strain, which was designated as strain yn509, was very different from other rodent-borne hantaviruses. phylogenetic analysis showed that the new strain fit into a clade containing da bie sha ... | 2010 | 20600393 |
[studies on natural foci of tsutsugamushi disease of the autumn-winter type in jiangsu]. | before 1986, tsutsugamushi disease was known only prevalent in south to zhejiang province in our country, belonged to the summer type and leptotrombidium (l.) deliense was regarded as the main vector. in october 1986, the authors found this disease in nanjing and carried out a series of studies in 1986-1992. the results were as follows: tsutsugamushi disease was epidemic in nanjing and north of jiangsu (including: dongtai, haian, rudong, jinhu, hanjiang, jiangdu); belonged to the autumn-winter t ... | 1994 | 8082137 |
rodent-borne orthohantaviruses in vietnam, madagascar and japan. | hantaviruses are harbored by multiple small mammal species in asia, europe, africa, and the americas. to ascertain the geographic distribution and virus-host relationships of rodent-borne hantaviruses in japan, vietnam, myanmar, and madagascar, rnalaterâ„¢-preserved lung tissues of 981 rodents representing 40 species, collected in 2011-2017, were analyzed for hantavirus rna by rt-pcr. our data showed hantaan orthohantavirus da bie shan strain in the chinese white-bellied rat (niviventer confucianu ... | 2021 | 34372549 |
characterization of the l genome segment of an orthohantavirus isolated from niviventer confucianus. | we sequenced and analyzed the l segment of the rna genome of hantaan virus (htnv) strain nc167. this segment is 6,533 nucleotides in length and contains a single open reading frame (orf) of 6,456 nucleotides in the antigenome sense that encodes the viral rna-dependent rna polymerase, which is 2,153 amino acids long with a predicted molecular mass of 246 kda. the 5' terminus of the viral rna was found to contain the expected sequences that are conserved in orthohantaviruses. according to the phyl ... | 2019 | 30350033 |
divergent selection along elevational gradients promotes genetic and phenotypic disparities among small mammal populations. | species distributed along mountain slopes, facing contrasting habitats in short geographic scale, are of particular interest to test how ecologically based divergent selection promotes phenotypic and genetic disparities as well as to assess isolation-by-environment mechanisms. here, we conduct the first broad comparative study of phenotypic variation along elevational gradients, integrating a large array of ecological predictors and disentangling population genetic driver processes. the skull fo ... | 2019 | 31380035 |
context-dependent responses of food-hoarding to competitors in apodemus peninsulae: implications for coexistence among asymmetrical species. | superior species may have distinct advantages over subordinates within asymmetrical interactions among sympatric animals. however, exactly how the subordinate species coexists with superior species is unknown. in the forests west of beijing city, intense asymmetrical interactions of food competition exist among granivorous rodents (e.g. apodemus peninsulae, niviventer confucianus, sciurotamias davidianus and tscherskia triton) that have broadly overlapping habitats and diets but have varied body ... | 2020 | 31773891 |
[investigation and genetic identification on babesia infection in rodents in some areas of fujian province]. | to explore the status of babesia infection in rodents and the genetic characteristics of babesia spp. in fujian province. | 2017 | 30134086 |
bartonella species detected in rodents from eastern china. | bartonella are vector borne gram-negative facultative intracellular bacteria. bartonella species are associated with rodents and their flea parasites worldwide. the genetic variation and distribution of bartonella species in rodents are not clear in china. we investigated the presence and genetic diversity of bartonella species in rodents from eastern china. we captured rodents from 2015 to 2016 in jiaonan county, shandong province, and detected bartonella species in the spleen of rodents by pcr ... | 2019 | 31355717 |
niviventer confucianus sacer (rodentia, muridae) is a distinct species based on molecular, karyotyping, and morphological evidence. | niviventer confucianus sacer thomas, 1908, which has been regarded as a subspecies of n. confucianus, was found to be a distinct species from n. confucianus based on molecular, karyotyping, and morphological characteristics in this study. niviventer c. sacer was found to belong to a distinct phylogenetic clade in phylogenetic tree constructed using the mitochondrial gene cytb, it clustered with n. bukit (bonhote, 1903) from vietnam and n. confucianus (milne-edwards, 1871) from yunnan, but showed ... | 2020 | 32879614 |
does scatter-hoarding of seeds benefit cache owners or pilferers? | the scatter-hoarding behavior of granivorous rodents plays an important role in seed dispersal and seedling regeneration of trees, as well as the evolution of several well-known mutualisms between trees and rodents in forest ecosystems. because it is difficult to identify seed hoarders and pilferers under field conditions by traditional methods, the full costs incurred and benefits accrued by scatter-hoarding have not been fully evaluated in most systems. by using infrared radiation camera track ... | 2017 | 28688134 |
hoarding without reward: rodent responses to repeated episodes of complete cache loss. | for food-hoarding strategies to be maintained in a population, the benefits of hoarding must outweigh the costs. if rewards are too low to offset the costs of hoarding, hoarders might be expected to abandon hoarding and/or shift to an alternative storing strategy (e.g., increase food consumption). however the ability to adjust to such circumstances requires that animals anticipate long-term rewards and adjust storing strategies to modify future outcomes. to test this, we subjected three sympatri ... | 2014 | 24752190 |
[seasonal variations of wild apricot seed dispersal and hoarding by rodents in rehabilitated land]. | rodents feed with and disperse plant seeds, which may thereby affect the seed spatiotemporal distribution, germination, and seedling establishment, and eventually play an important role in the restoration of deforested area. taking the state-owned yugong forest farm in jiyuan of henan, china as study site, the tagged seeds of wild apricot (prunus armeniaca) were artificially released in rehabilitated land in the spring, summer, and autumn 2008, aimed to investigate their dispersal and hoarding b ... | 2010 | 20707107 |
diversity and distribution of host animal species of hantavirus and risk to human health in jiuhua mountain area, china. | to investigate the diversity and the distribution of host animal species of hantavirus and the effect on human health in jiuhua mountain area, china. | 2014 | 25374018 |
detection of kobe-type babesia microti associated with japanese human babesiosis in field rodents in central taiwan and southeastern mainland china. | field rodent surveys for babesia infection were performed from 2002 to 2005 in the vicinities of human babesiosis occurrences in taiwan and mainland china. babesia microti was identified by microscopical examination and/or pcr in 1 rattus coxinga and 1 crocidura horsfieldii in central taiwan and in 13 niviventer confucianus and 1 apodemus agrarius in zhejiang and fujian provinces of southeastern china. of 15 b. microti samples detected by pcr, all except 1 were shown to be the kobe-type, the aet ... | 2008 | 18413002 |
[predation and dispersal of lithocarpus glaber seeds by rodents in tiantong national forest park, zhejiang province]. | this paper studied the predation and dispersal of lithocarps glaber seeds by rodents in the tiantong national forest park (29 degrees 48'n, 121 degrees 47'e) of ningbo city, zhejiang province. five seeds release transects (three in evergreen broad-leaved forest, one in pinus messoniana forest, and one in shrub), and two seeds release states (covered/uncovered and tagged/untagged) were set up. iron snare traps were baited to determine the effects of rodents on seeds disappearance. the results sho ... | 2006 | 16724742 |
[investigation of rodents and ixodes for lyme disease and four strains of borrelia burgdorferi first isolated from ixodes granulatus supino, rattus confucianus and r. norvegicus in fujian province]. | with bsk ii medium, 4 strains of borrelia burgdorferi was isolated from ixodes granulatus supino, rattus confucianus and r, novregicus, which ixodes and ruttus all captured from forest areas in northern of fujian province where have found lyme cases. these isolated strains were identified by institute of epidemiology and microbiology, chinese academy of preventive medicine. | 1992 | 1301268 |
neighborhood effects on the tannin-related foraging decisions of two rodent species under semi-natural conditions. | neighborhood effects on seed predation and dispersal processes are usually seed-characteristic-dependent; however, how seeds with certain characteristics affect the foraging behavior of rodents in relation to other seeds nearby is unclear. because large differences in seed characteristics between neighboring seeds may lead to significant differences in rodent foraging preferences, we hypothesized that neighborhood effects were more likely to be detected when paired seeds differed in seed charact ... | 2020 | 32645258 |
integrative taxonomic approach of trypanosomes in the blood of rodents and soricids in asian countries, with the description of three new species. | trypanosoma lewisi (kinetoplastea: trypanosomatida: trypanosomatidae) with a cosmopolitan distribution is the type species of the subgenus herpetosoma, which includes ca. 50 nominal species isolated mainly from rodents. since members of herpetosoma in different host species have an almost identical morphology of bloodstream forms, these trypanosomes are referred to as 't. lewisi-like', and the molecular genetic characterization of each species is necessary to verify their taxonomy. in the presen ... | 2019 | 30353232 |
comparison of food hoarding of two sympatric rodent species under interspecific competition. | competition can greatly affect the food hoarding strategies of rodents and the fate of seeds hoarded. in order to understand the influence of interspecific competition on food caching behavior of sympatric rodents, we investigated food hoarding patterns of two sympatric rodent species, buff-breasted rat (rattus flavipectus) and chinese white-bellied rat (niviventor confucianus), and compared their responses and adjustment in hoarding behavior under interspecific competition. the results showed t ... | 2013 | 23124017 |
cross-species transmission in the speciation of the currently known murinae-associated hantaviruses. | to gain more insight into the phylogeny of dabieshan virus (dbsv), carried by niviventer confucianus and other murinae-associated hantaviruses, genome sequences of novel variants of dbsv were recovered from niviventer rats trapped in the mountainous areas of wenzhou, china. genetic analyses show that all known genetic variants of dbsv, including the ones identified in this study, are distinct from other murinae-associated hantaviruses. dbsv variants show geographic clustering and high intraspeci ... | 2012 | 22855492 |
epidemiological survey of angiostrongylus cantonensis in the west-central region of guangdong province, china. | the study was to understand the angiostrongylus cantonensis infectious situation of rodent definitive host, snail intermediate host, and local residents in the west-central region of guangdong province in china. the snails achatina fulica and pomacea canaliculata collected from the survey place were digested with artificial gastric juice, and the third-stage larvae of a. cantonensis in the snails were examined under microscope. the heart and lung of rats captured from the survey place were taken ... | 2011 | 21301874 |