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Genetic Diversity of the Amur Tiger (Panthera tigris altaica): Are There Differences between the 20th and the Early 21st Centuries? DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2023; 512:311-316. [PMID: 38087019 PMCID: PMC10716067 DOI: 10.1134/s001249662370059x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 12/18/2023]
Abstract
Polymorphism of nine microsatellite loci in the Sikhote-Alin tiger population was analyzed in the modern and recent historical periods, using blood, excrement, and museum bone samples. Tests for excess heterozygosity to determine whether the population went through a period of low abundance and a low value of the Garza-Williamson coefficient indicated that such events were highly probable to occur in both recent and earlier history. The mean effective population size Ne of a current sample was 34.4 (95% confidence interval 17-106.8). This fact is of great interest in the contest of conservation and restoration of endangered large cat species.
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Spatial Ecology of Siberian Forest Reindeer (Rangifer tarandus valentinae Flerov, 1932) of Kuznetsk Alatau. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2023; 508:76-80. [PMID: 37186051 DOI: 10.1134/s0012496622700193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 05/17/2023]
Abstract
For the first time, information is provided on the size of the home range of Siberian forest reindeer (Rangifer tarandus valentinae) of the Altai-Sayan population of Kuznetsk Alatau, the minimum distance that the deer passes per day, their changes, and changes of habitats during the annual cycle. Possible reasons for the cyclical use of the habitat by forest reindeer are discussed.
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Changes in Serum Amyloid A Level in Domestic Cats during Pregnancy. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2022; 507:269-271. [PMID: 36781523 DOI: 10.1134/s0012496622060138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 02/15/2023]
Abstract
Reproduction of endangered species in captivity is an urgent problem for the conservation and restoration of biodiversity. For mammals, including felids, assessing and monitoring of pregnancy progression is fundamental for successful breeding. For the first time, changes in the concentrations of serum amyloid A (SAA), the main protein of the acute phase of inflammation in felines, were assessed during pregnancy in a domestic cat. It was found that changes in SAA concentrations in pregnant females are consistent: an increase to the middle of pregnancy (day 30) and a decrease to day 60. After parturition, the SAA concentrations in the blood of domestic cats increase. The litter size significantly affected the dynamic of SAA concentrations during the experiment, in particular, after parturition, the increase in its level was significantly higher in the females that gave birth to larger litters (from four to seven kittens).
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The Dynamics of the Attendance of Mineral Licks by Reindeer in the Mountainous Part of Kuznetsky Alatau Reserve. BIOL BULL+ 2022. [DOI: 10.1134/s1062359021140193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Restoration of the Amur Tiger (Panthera tigris altaica) Population in the Northwest of Its Distribution Area. BIOL BULL+ 2021. [DOI: 10.1134/s1062359021080239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Observations of intraspecific killing, cannibalism, and aggressive behavior among polar bears (Ursus maritimus) in the eastern Barents Sea and the Kara Sea. Polar Biol 2020. [DOI: 10.1007/s00300-020-02771-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Genetic Specificity of the Siberian Forest Reindeer (Rangifer tarandus valentinae Flerov, 1932) of the Kuznetsk Alatau. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2020; 494:255-259. [PMID: 33083885 DOI: 10.1134/s0012496620050105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 11/23/2022]
Abstract
This is the first study to show the genetic identity of the Altai-Sayan population of the forest reindeer of the Kuznetsk Alatau (Rangifer tarandus valentinae). The population is characterized by the existence of unique mitochondrial lines, the absence of signs of introgression of domestic rein deer mtDNA, as well as a low level of genetic diversity. In the sample studied, only two nucleotide substitutions (both of them transitions) were revealed, the nucleotide diversity (0.0015 ± 0.00136) was almost ten times lower than in most populations of wild reindeer in Russia and was comparable only with that of some wild reindeer populations of Norway and Svalbard. The haplotype diversity (h) was also relatively low (0.615 ± 0.102).
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Parasitic Community of Fleas (Siphonaptera) of Small and Medium Predators (Mammalia, Carnivora) of Southwestern Primorskii Krai. CONTEMP PROBL ECOL+ 2020. [DOI: 10.1134/s1995425520020080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Effect of the Number of Mating Partners and Sperm Quality on Reproductive Success in the Domestic Cat (Felis catus). BIOL BULL+ 2019. [DOI: 10.1134/s1062359018070063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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A New Analytical Approach to the Study of the Spatial Structure of the Amur Leopard (Panthera pardus orientalis) Population. RUSS J ECOL+ 2019. [DOI: 10.1134/s1067413618060061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Isotopic Composition of Blood of Polar Bears (Ursus maritimus) of the Kara-Barents Sea Population. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2018; 480:93-96. [PMID: 30009348 DOI: 10.1134/s0012496618030055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Indexed: 06/08/2023]
Abstract
The data on the content of carbon and nitrogen isotopes in the blood samples of polar bears obtained in the present study confirm that polar bears in the Taimyr region (and the Kara-Barents sea population in general) are partly dependent on the resources of terrestrial origin. However the "terrestrial carbon" evidently reaches bears' tissues indirectly, via marine food webs utilizing organic carbon brought into the polar basin by Siberian rivers.
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The effect of ambient temperature on glucocorticoid level in the Amur tiger (Panthera tigris altaica). RUSS J ECOL+ 2017. [DOI: 10.1134/s1067413617030079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Plasma corticosterone concentrations in European robins during spring and autumn migration. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2017; 473:61-63. [PMID: 28508203 DOI: 10.1134/s0012496617020089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Indexed: 06/07/2023]
Abstract
To estimate differences in hormonal mechanisms of regulation of spring and autumn migration in European robins Erithacus rubecula, the plasma corticosterone (CORT) concentrations were compared in birds caught during both migratory seasons. A total of 414 blood samples were analyzed. It was found that the baseline and stress-induced CORT concentrations in free-living robins during spring migration were practically twice as high as during autumn passage. Our results demonstrate that autumn and spring migrations are independent stages of the avian annual cycle. Probably, the increase in the CORT concentrations in spring can be considered to be physiological preparation for the breeding season.
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Metabolism of prostaglandin F2alpha in Eurasian lynx (Lynx lynx) and Asian leopard cat (Prionailurus bengalensis euptilura). Reprod Domest Anim 2017; 52 Suppl 2:45-51. [DOI: 10.1111/rda.12894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Movement of a female polar bear (Ursus maritimus) in the Kara Sea during the summer sea-ice break-up. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2017; 472:17-20. [PMID: 28429262 DOI: 10.1134/s0012496617010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Indexed: 06/07/2023]
Abstract
The polar bear movement trajectory in relation to onset date of the sea-ice break-up was studied in the coastal zone of the Taimyr Peninsula, eastern part of the Kara Sea, using as an example a female polar bear tagged by a radio collar with an Argos satellite transmitter. Analysis of the long-term pattern of ice melting and tracking, by means of satellite telemetry, of the female polar bear who followed the ice-edge outgoing in the north-eastern direction (in summer 2012) suggests that direction of the polar bear movement depends precisely on the direction of the sea-ice cover break-up.
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Genome resource banking in the family Felidae. Vavilovskii Zhurnal Genet Selektsii 2017; 21:561-568. [DOI: 10.18699/10.18699/vj17.27-o] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023] Open
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20
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Occurrence Pattern of Influenza A Virus, Coxiella burnetii, Toxoplasma gondii, and Trichinella sp. in the Pallas Cat and Domestic Cat and Their Potential Prey Under Arid Climate Conditions. ARID ECOSYSTEMS 2016. [DOI: 10.1134/s2079096116040089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Seasonal changes in blood cells and biochemical parameters in the Mongolian hamster (Allocricetulus curtatus). BIOL BULL+ 2016. [DOI: 10.1134/s1062359016040087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Seasonal Changes in Blood Cells and Biochemical Parameters in the Mongolian Hamster (Allocricetulus curtatus). IZVESTIIA AKADEMII NAUK. SERIIA BIOLOGICHESKAIA 2016:405-411. [PMID: 30251793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
It was shown previously that the Mongolian hamster (Allocricetulus curtatus) is a mammalian species with irregular short hibernation. The purpose of the present study was to determine how this status affects seasonal changes in the biochemical and hematological parameters in A. curtatus males under a natural temperature and light regime. It was found that a reduction in circulating white blood cells, specifically lymphocytes, neutrophils, eosinophils, basophils, and monocytes, occurred in-winter. and bilirubin levels increased in spring. These characteristics make Mongolian hamsters closer to the true hibernating species. At the same time, the character of seasonal changes in the number of red blood cells, glucose, total protein, creatinine, and albumin is closer to species with torpor.
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Home range structure and space use of a female Amur leopard, Panthera pardus orientalis (Carnivora, Felidae). BIOL BULL+ 2015. [DOI: 10.1134/s1062359015090095] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Movements of polar bear females (Ursus maritimus) during an ice-free period in the fall of 2011 on Alexandra Land Island (Franz Josef Land Archipelago) using satellite telemetry. BIOL BULL+ 2015. [DOI: 10.1134/s1062359015080087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Vocal activity of the red deer and the acoustic structure of its rutting calls in the Russian Far East. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2015; 462:144-147. [PMID: 26164336 DOI: 10.1134/s0012496615030114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Indexed: 06/04/2023]
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26
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Genome resource banking in the family Felidae. Vavilovskii Zhurnal Genet Selektsii 2015. [DOI: 10.18699/vj17.27-o] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Noninvasive estimation of the hypothalamic-pituitary-adrenal system activity in the Far East leopard. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2014; 456:165-8. [PMID: 24985506 DOI: 10.1134/s0012496614030120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Indexed: 11/23/2022]
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29
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Evaluation of polar bear movement patterns in relation to sea ice drift. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2014; 456:191-4. [PMID: 24985513 DOI: 10.1134/s0012496614030090] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Indexed: 11/23/2022]
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30
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Seropositivity for different pathogens in polar bears (Ursus maritimus) from Barents Sea Islands. BIOL BULL+ 2013. [DOI: 10.1134/s1062359013090082] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Spatially explicit capture-recapture method (SECR, SPACECAP): A new approach to determination of the Amur tiger (Panthera tigris altaica) population density by means of camera-traps. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2013; 453:365-368. [PMID: 24385172 DOI: 10.1134/s0012496613060033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Indexed: 06/03/2023]
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32
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Individual identification of Amur leopards (Panthera pardus orientalis) using molecular-genetic methods and the population size estimation. BIOL BULL+ 2013. [DOI: 10.1134/s106235901302012x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Ecological and physiological characteristics of seasonal biology of the mongolian hamster, Allocricetulus curtatus allan 1940 (Cricetinae, Rodentia). RUSS J ECOL+ 2013. [DOI: 10.1134/s1067413613010050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Seasonal changes in reproductive characteristics of teratospermic and normospermic domestic cats (Felis silvestrisvar.catus). ZOOLOGICHESKY ZHURNAL 2013. [DOI: 10.7868/s0044513413100061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Hibernation in the Eversman hamster (Allocricetulus eversmanni Brandt, 1859) from the Saratov Trans-Volga region. BIOL BULL+ 2012. [DOI: 10.1134/s1062359012100111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Prevalence of seropositivity to pathogens in small carnivores in adjacent areas of Lazovskii Reserve. BIOL BULL+ 2012; 39:708-713. [PMID: 32214774 PMCID: PMC7088077 DOI: 10.1134/s1062359012080067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Indexed: 11/22/2022]
Abstract
The prevalence of infectious diseases in wild and feral carnivores is poorly known in Primorsky Krai, where rare species such as the Amur tiger and the Far East leopard roam. In this study we evaluated the prevalence of seropositivity in feral (cats, dogs) and wild (raccoon dog, badger, American mink, Far Eastern wild cat) carnivores to various pathogens: distemper virus, parvovirus, feline immunodeficiency and feline leukemia virus, feline coronavirus, Toxoplasma gondii, Mycoplasma sp., and Chlamydia sp. It was shown that seropositivity occurred significantly more frequent in feral animals than in wild ones. The highest percentage of seropositive animals was observed in feral dogs. It is these diseases that can be dangerous for the Amur tiger and the Far East leopard, thus affecting their populations.
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Seasonal peculiarities of female hormonal response of females to conspecific chemical signals of the male in two species of the genus Phodopus. BIOL BULL+ 2012. [DOI: 10.1134/s1062359012030089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Maternal behavior of the Eurasian lynx Lynx lynx L. during the early postnatal ontogeny of its cubs. BIOL BULL+ 2012. [DOI: 10.1134/s1062359012010025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Application of satellite collars to the study of home range and activity of the Amur tiger (Panthera tigris altaica). BIOL BULL+ 2011. [DOI: 10.1134/s1062359011080073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Activity of the hypothalamo-pituitary-adrenals axis in the Siberian tiger (Panthera tigris altaica) in captivity and in the wild, and its dynamics throughout the year. BIOL BULL+ 2011. [DOI: 10.1134/s1062359011030095] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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[Activity of the hypothalamo-pituitary-adrenals axis in the Siberian tiger (Panthera tigris altaica) in captivity and in the wild, and their dynamics throughout the year]. IZVESTIIA AKADEMII NAUK. SERIIA BIOLOGICHESKAIA 2011:358-363. [PMID: 21790001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A noninvasive evaluation method of hypothalamo-pituitary-adrenals axis (HPA) activity in the Siberian tiger was verified. Comparison of the activity level of HPA in Siberian tigers in the wild and in captivity, and their alterations over the year was carried out. Significant seasonal deviations between activity levels of HPA in tigers in captivity were not found. In the wild, this level was significantly higher, reaching the maximum from November to January, which can be related with an unfavorable influence on tigers in low temperatures and deep snow cover.
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Noninvasive assessment of stress in bank voles (Myodes glareolus, Cricetidae, Rodentia) by means of enzyme-linked immunosorbent assay (ELISA). BIOL BULL+ 2011. [DOI: 10.1134/s1062359010090098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Seasonal changes of steroid levels in blood plasma of three phodopus species (Mammalia, Cricetinae). BIOL BULL+ 2010. [DOI: 10.1134/s1062359010060154] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Comparative metabolism of gestagens and estrogens in the four lynx species, the Eurasian (Lynx lynx), the Iberian (L. pardinus), the Canada lynx (L. canadensis) and the bobcat (L. rufus). Gen Comp Endocrinol 2010; 167:287-96. [PMID: 20346945 DOI: 10.1016/j.ygcen.2010.03.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Revised: 02/16/2010] [Accepted: 03/20/2010] [Indexed: 11/20/2022]
Abstract
With the increasing prevalence of faecal hormone metabolite analysis, it is important to develop a better understanding of the dynamics of faecal metabolite composition. The aim of this study was to compare the quantitative faecal gestagen and estrogen metabolite composition in the four lynx species: Eurasian lynx, Iberian lynx, Canada lynx and bobcats. Comparative HPLC immunograms were generated from faecal samples collected before, during, and after pregnancy from individual females of each lynx species. Gestagens and estrogens revealed three similar classes of immunoreactive faecal metabolites: (1) polar metabolites which were enzyme-hydrolysable and thus may be designated as conjugates, (2) non-hydrolysable polar metabolites, and (3) non-polar metabolites or free steroids. For both hormones, strong similarities in the HPLC immunograms across species suggests that steroid metabolism is relatively conserved among Lynx species. Gestagens were primarily excreted as polar conjugates or unknown metabolites, whereas estrogen metabolism revealed a huge proportion (approximately 50%) consisting of 17beta-estradiol and estrone. These results are consistent with patterns of steroid metabolism in other felid species. Only two minor species-specific patterns emerged. In bobcats, we observed an exceptionally high proportion of gestagen conjugates, and in Iberian lynx, there was an exceptionally high proportion of estrone. The comparison of HPLC immunograms within individuals revealed that intra-individual variations in steroid metabolite composition are considerably high. However, changes in metabolite composition did not correlate with specific reproductive stages; rather, they seemed to occur at random. We assume that these differences may reflect changes in liver metabolism and/or qualitative and quantitative variations in gut bacteria composition, resulting in differences in faecal metabolite composition.
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Noninvasive individual identification of the Amur tiger (Panthera tigris altaica) by molecular-genetic methods. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2009; 429:518-522. [PMID: 20170062 DOI: 10.1134/s0012496609060118] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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47
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Non Cat-Like Ovarian Cycle in the Eurasian and the Iberian Lynx - Ultrasonographical and Endocrinological Analysis. Reprod Domest Anim 2009; 44 Suppl 2:87-91. [DOI: 10.1111/j.1439-0531.2009.01380.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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48
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Approaches to pregnancy diagnosis in the sable (Martes zibellina, Mustelidae, Carnivora) by noninvasive methods: Postimplantation period. BIOL BULL+ 2008. [DOI: 10.1134/s1062359008060083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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49
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Comparative analysis of the effect of predator odor on morphological and physiological parameters of adult male Campbell hamsters (Phodopus campbelli) and dwarf hamsters (Phodopus sungorus). RUSS J ECOL+ 2007. [DOI: 10.1134/s1067413607060082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hormonal response to a synthetic analog of adrenocorticotropic hormone in lynx pups (Lynx lynx L.). DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2007; 416:341-4. [PMID: 18047013 DOI: 10.1134/s0012496607050055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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