| an experimental transmission of woodchuck hepatitis virus to young chinese marmots. | fourteen young chinese marmots (marmota bobak sibirica radde) were randomly allocated to two groups of seven each. they were injected intrahepatically with a standard woodchuck hepatitis virus challenge pool or a negative pool, prepared from sera of woodchucks with and without woodchuck hepatitis virus infection, respectively. marmot no. 2 in the experimental group experienced an episode of seroconversion from woodchuck hepatitis surface antigen to anti-woodchuck hepatitis antibody. woodchuck he ... | 1988 | 3356418 |
| establishing a new animal model for hepadnaviral infection: susceptibility of chinese marmota-species to woodchuck hepatitis virus infection. | hepatitis b virus infection (hbv) is a major medical problem in china. the lack of a suitable infection model in china is recognized as an obstacle for research on hbv in china. chinese marmota-species is phylogenetically closely related to marmota monax, thus, it might be suitable to serve as an animal model for hbv infection. therefore, we attempted to prove the claim about the existence of woodchuck hepatitis virus (whv)-like viruses in chinese marmota-species and to determine the susceptibil ... | 2010 | 21084496 |
| using the ground squirrel (marmota bobak) as an animal model to assess monkeypox drug efficacy. | in experiments to study the sensitivity of ground squirrels (marmota bobak) to monkeypox virus (mpxv) at intranasal challenge, expressed pox-like clinical symptoms (hyperthermia, lymphadenitis, skin rash all over the body and mucous membranes and others) were observed 7-9 days post-infection. the 50% infective dose (id50 ) of mpxv for these marmots determined by the presence of clinical signs of the disease was 2.2 log10 pfu. some diseased marmots (about 40%) died 13-22 days post-infection, and ... | 2017 | 25944444 |
| [development of the disease in marmot at the intranasal infection with the monkeypox virus]. | in experimental study the sensitivity of the marmota bobak species to the monkeypox virus (mpxv) with the intranasal (i/n) infection was tested. it was demonstrated that 50% of the infective dose (id50) of the mpxv on external clinical signs of the disease was 2.2 ig plaque forming units (pfu). the percentage of the marmot mortality is slightly dependent on the infecting dose of the mpxv, therefore it is not possible to correctly determine the value of 50 % fatal dose (fd50) for these animals. t ... | 2015 | 27024916 |
| [wild mammals of the grand duchy of lithuania in the works of jean-emmanuel gilibert]. | among the many topics of lively scientific work that jean emmanuel gilibert (1741-1814) conducted in grodno and vilnius, an important place is occupied by his observations of wild mammals. royal patronage and care from antoni tyzenhauz, treasurer of the grand duchy of lithuania and the governor of grodno, allowed gilibert to keep and observe wild fauna captured by royal services in royal forests, including białowieża primeval forest. such was an origin of a female bison kept by gilibert in grodn ... | 2015 | 26445747 |
| [aberrations of the alarm call of the steppe marmot, marmota bobak (rodentia, sciuridae)]. | aberrations, or deviations from the normal type of alarm call have been studied in the steppe marmot. one regular and several rare aberrations have been identified. the regular aberration manifests itself in all six populations studied, from the kharkov region in the west to the eastern border of the orenburg region in the east, with its frequency in the populations varying in different years from 10 to 66%. rare aberrations occur sporadically and not in all populations. | 2016 | 19198078 |
| a mathematical model of the temperature conditions of mammalian burrows as exemplified by the burrow of the marmot marmota bobak müll., 1776. | | 2016 | 16358579 |
| cold war spy satellite images reveal long-term declines of a philopatric keystone species in response to cropland expansion. | agricultural expansion drives biodiversity loss globally, but impact assessments are biased towards recent time periods. this can lead to a gross underestimation of species declines in response to habitat loss, especially when species declines are gradual and occur over long time periods. using cold war spy satellite images (corona), we show that a grassland keystone species, the bobak marmot (marmota bobak), continues to respond to agricultural expansion that happened more than 50 years ago. al ... | 2020 | 32429811 |
| ornithodoros (ornithodoros) huajianensis sp. nov. (acari, argasidae), a new tick species from the mongolian marmot (marmota bobak sibirica), gansu province in china. | a new argasid species, belonging to the subgenus ornithodoros, namely, ornithodoros (ornithodoros) huajianensis was described for the first time based on the females, males and nymphs. the morphological features of each stage in the life cycle are unique, making identification easy, but are similar to other species of the subgenus ornithodoros. the new species was diagnosed by the broad rectangular tongue and triangular tongue-shaped posterior lip in the male genital apron, a shallow camerostome ... | 2019 | 31194100 |