| [discovery of two sub-types of hantanvirus in anhui mountain areas]. | to investigate the existence of hemorrhagic fever with renal syndrome (hfrs) foci in high mountains and forest areas. | 2002 | 12482368 |
| 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 |
| rodent borne diseases and their fleas in menoufia governorate, egypt. | a preliminary survey of domestic rodent borne diseases and their fleas was carried out in ten centers of menofiya (quesna, shebeen el-kom, berka el-saabe, el-bagour, el-shohada, tala, menoff, searth el-lian, ashmon and el-sadat) governorate, egypt. rodent index (number of rodent / trap) and percentage frequency of different rodent species were recorded in spring (2009). the main species was norway rat, rattus norvegicus, the grey-bellied rat, r. rattus alexandrinus, the white- bellied rat, r. ra ... | 2010 | 20503591 |
| phylogeography of the large white-bellied rat niviventer excelsior suggests the influence of pleistocene glaciations in the hengduan mountains. | the hengduan mountains, situated in the southeastern tibetan plateau, have undergone dramatic geological and climatic changes over the pleistocene epoch. several studies have revealed that the mountains served as a refugium during the ice age. the large white-bellied rat niviventer excelsior is a rodent endemic to the hengduan mountains, which makes it an appropriate species for investigating the influence of glacial movements on the genetic structure of mammals. in this study, we sequenced the ... | 2010 | 20528155 |
| 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 |
| infestation rate of tick, mite and lice among rodent species in menoufia governorate, egypt. | a preliminary survey of domestic rodent species and their ectoparasites tick, mite and lice was carried out in ten centers of menoufia (quesna, shebeen el-kom, berka el-saabe, el-bagour, el-shohada, tala, menoff, searth el-lian, ashmon and el-sadat) governorate. frequency of rodent species and ectoparasites indices (tick, mite and lice) were recorded in spring (2009). the main species of rodent was norway rat, rattus norvegicus, the grey-bellied rat, rattus rattus alexandrinus, the white-bellied ... | 2010 | 21246950 |
| 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 |
| the current status of fleas according to environmental changes in some governorates in egypt. | a preliminary survey of domestic rodent and their fleas was carried out in different environmental governorates (ismailia, dakahlia, el-fayoum, north sinai and matrouh), egypt. flea index (number of flea/rodent) and percentage frequency of different flea species were recorded in spring (2009- 2010). the main rodent species found were the norway rat, rattus norvegicus, the grey-bellied rat, rattus rattus alexandrinus, the white- bellied rat, rattus rattus frugivorus, the house mouse, mus musculus ... | 2011 | 21634253 |
| field studies on dominant rodents and the efficacy of certain insecticides to their fleas in dakahlia governorate, egypt. | a preliminary survey of domestic rodent and the efficacy of bendiocarb, diazinon and pirimiphos-methyl insecticides to their fleas were carried out in dakahlia governorates (aga, meet-ghamr, el-senbellawen, temi el-amded, beni-abed, dekernes, nabarow, talkha, menia el-nasr and el-kordy). rodent index (number of rodent/trap) and percentage frequency of drodent species were recorded from october 2010 to may 2011. the main rodent species found were the norway rat, rattus norvegicus, the grey-bellie ... | 2011 | 21980770 |
| 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 |
| 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 |
| phylogenetic relationships in the niviventer-chiromyscus complex (rodentia, muridae) inferred from molecular data, with description of a new species. | based on molecular data for mitochondrial (cyt b, coi) and nuclear (irbp, ghr) genes, and morphological examinations of museum specimens, we examined diversity, species boundaries, and relationships within and between the murine genera chiromyscus and niviventer. phylogenetic patterns recovered demonstrate that niviventer sensu lato is not monophyletic but instead includes chiromyscuschiropus, the only previously recognized species of chiropus. to maintain the genera niviventer and chiropus as m ... | 2014 | 25493050 |
| orientia tsutsugamushi infection in rodents in anhui province of china. | we conducted an investigation of orientia tsutsugamushi infection among rodents in non-endemic areas in anhui province. fifty-six (56) rodents including 44 apodemus agrarius and 12 niviventer niviventer were trapped and captured in autumn in the fields of three counties in anhui province. dna samples were amplified and sequenced for the 56kda protein gene of orientia tsutsugamushi. the overall infection rate in the rodents was 23.2%(13/56). the rate of detection of o. tsutsugamushi in apodemus a ... | 2017 | 29037778 |
| 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 |
| identification of novel rosavirus species that infects diverse rodent species and causes multisystemic dissemination in mouse model. | while novel picornaviruses are being discovered in rodents, their host range and pathogenicity are largely unknown. we identified two novel picornaviruses, rosavirus b from the street rat, norway rat, and rosavirus c from five different wild rat species (chestnut spiny rat, greater bandicoot rat, indochinese forest rat, roof rat and coxing's white-bellied rat) in china. analysis of 13 complete genome sequences showed that "rosavirus b" and "rosavirus c" represent two potentially novel picornavir ... | 2016 | 27737017 |
| 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 |
| the complete mitochondrial genome of the large white-bellied rat, niviventer excelsior (rodentia: muridae). | the first complete mitochondrial genome of the large white-bellied rat (niviventer excelsior) was sequenced and annotated in order to provide a source of phylogenetic characters including an assessment of gene order arrangement. the mitochondrial genome sequence (16,298 bp) of n. excelsior contains 13 protein-coding, 2 rrna and 22 trna genes as well as 1 typical control region (d-loop), which are shared by other mammalian mitochondrial genomes. the codon usage also followed the typical vertebrat ... | 2012 | 22775427 |
| multi-locus phylogeny using topotype specimens sheds light on the systematics of niviventer (rodentia, muridae) in china. | niviventer is a genus of white-bellied rats that are among the most common rodents in the indo-sundaic region. the taxonomy of the genus has undergone extensive revisions and remains controversial. the current phylogeny is unresolved and was developed primarily on the basis of mitochondrial genes. identification is extremely difficult, and a large number of genbank sequences seem to be problematic. we extensively sampled specimens of niviventer in china and neighboring northern vietnam, includin ... | 2016 | 27905886 |
| orthohantaviruses infections in humans and rodents in baoji, china. | in recent years, hemorrhagic fever with renal syndrome (hfrs) incidence has been becoming a severe public health problem again due to its significant increase in shaanxi province, china. baoji, located in the guanzhong plain in the central part of shaanxi province, has been severely affected by hfrs since its first emergence in 1955. to better understand the epidemiology of orthohantaviruses infection in humans and the causative agents carried by the rodents, the long-term incidence patterns wer ... | 2020 | 33075097 |
| 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 |
| 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, rnalater™-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 |