| [the isolation of the herpes virus from the white crane and a study of its properties]. | isolation of a virus agent from sick white cranes in national oka preserve is described. the results of virological and serological studies on specimens from the sick birds permitted a conclusion that the infection in the cranes could be induced by avian herpes virus. | 1993 | 8073746 |
| <i>alloionema</i> <i>californicum</i> n. sp. (nematoda: alloionematidae): a new alloionematid from usa. | a new species of the family alloionematidae was isolated from a rotten winged gourd at white crane garden, san francisco, usa, sampled by christopher nelson in november 2010, and a live culture is deposited in félix lab strain database (http://www.justbio.com/worms/index.php), ibens, paris, france. specimens from the culture have been examined. both morphologically and molecularly, the nematode described herein as alloionema californicum n. sp. differs from the other alloionematid species, a. ap ... | 2016 | 27988776 |
| [non-invasive method of sex identification of crane chicks by the dna from capillary vessels of alantois]. | the non-invasive method of determining the sex of chicks after hatching based on the dna isolated from capillary vessels of allantois of the egg-shell membranes was demonstrated on four crane species (gruinae, aves), which were bred in the crane breeding centre of the oka nature reserve in 2009-2012. using the ee0.6 molecular marker of sex, the gender of 26 siberian (grus leucogeranus), 15 red-crowned (g. japonensis), 4 common (g. grus) and 1 demoiselle (anthropoides virgo) crane chicks was iden ... | 2014 | 25507804 |
| [non-invasive method of sex identification of crane chicks by the dna from capillary vessels of alantois]. | the non-invasive method of determining the sex of chicks after hatching based on the dna isolated from capillary vessels of allantois of the egg-shell membranes was demonstrated on four crane species (gruinae, aves), which were bred in the crane breeding centre of the oka nature reserve in 2009-2012. using the ee0.6 molecular marker of sex, the gender of 26 siberian (grus leucogeranus), 15 red-crowned (g. japonensis), 4 common (g. grus) and 1 demoiselle (anthropoides virgo) crane chicks was iden ... | 2014 | 25434206 |
| testing the utility of mitochondrial cytochrome oxidase subunit 1 sequences for phylogenetic estimates of relationships between crane (grus) species. | morphology and biogeography are widely used in animal taxonomy. recent study has suggested that a dna-based identification system, using a 648-bp portion of the mitochondrial gene cytochrome oxidase subunit 1 (co1), also known as the barcoding gene, can aid in the resolution of inferences concerning phylogenetic relationships and for identification of species. however, the effectiveness of dna barcoding for identifying crane species is unknown. we amplified and sequenced 894-bp dna fragments of ... | 2011 | 22194213 |
| genetic differentiation in a captive population of the endangered siberian crane (grus leucogeranus pall.). | dna fingerprinting, followed by multivariate analysis of data, was used to characterize genetic heterogeneity in captive populations of the endangered siberian and sandhill cranes. the genetic structure revealed reflected the natural population and species distributions. the relevant groups differed not only from each other, but also from interspecies and inter-population hybrids bred in captivity. in this study we have tested an approach to the analysis of population structure based on individu ... | 1994 | 7808418 |
| [offspring sex ratio in the captive population of siberian crane (grus leucogeranus pallas)]. | the sex ratio of siberian crane chicks (grus leucogeranus pallas) from the captive population ofthe oka crane breeding center was analyzed with the use of molecular sex marker ee0.6 in 2009-2014. we determined the sex of 84 birds bred from 12 dams by means of artificial insemination and natural breeding. the total primary sex ratio was 40:44, and the secondary sex ratio was 36:39 with a minor predominance of females. the mortality rate of embryos was the same for both sexes. the primary and seco ... | 2015 | 27055304 |
| hydrological modelling for siberian crane grus leucogeranus stopover sites in northeast china. | habitat loss is one of the key factors underlying the decline of many waterbird species, including siberian crane (grus leucogeranus), a threatened species worldwide. wetlands are the primary stopover for many waterbirds and restoration of these wetlands involves both hydrological restoration and water resource management. to protect the stopover sites of siberian cranes, we collected siberian crane stopover numbers, meteorological and hydrological data, and remote sensing data from 2008 to 2011 ... | 2015 | 25874552 |
| [genetic diversity and relatedness in different generations of the siberian crane (grus leucogeranus pallas) captive population]. | eight variable microsatellite loci were analyzed in terms of studying the genetic structure of different generations of a captive population of a rare endemic russian species, the siberian crane (grus leucogeranus pallas). it was shown that the founding population of natural origin (15 birds) is characterized by high genetic diversity (n(a) = 6.625, h(o) = 0.767, h(e) = 0.731) and a lack of relatedness (r = -0.079). in the total sample of descendents of the founders (122 individuals from generat ... | 2014 | 25739288 |
| [genetic passportization and identification of siberian cranes (grus leucogeranus pallas) in captivity]. | the genetic diversity of the founders of an artificial population of the siberian crane grus leucogeranus pallas (rare species of cranes) was characterized using 10 microsatellite loci. it was established that the allelic diversity (on average, 5.9 alleles per locus) and genic (h(o) = 0.739) diversity of the siberian crane is rather high and comparable with the estimations for natural populations of different crane species. genetic passportization of the birds (119 individuals) from the register ... | 2016 | 25731031 |
| population sizes and group characteristics of siberian crane (leuco-geranus leucogeranus) and hooded crane (grus monacha) in poyang lake wetland. | both the siberian crane (leucogeranus leucogeranus) and hooded crane (grus monacha) have limited population sizes and are considered endangered by domestic chinese and international agencies. to document the current size of their respective populations and characterize their groups, between october 2012 and april 2013 we undertook fieldwork at four nature reserve areas within the poyang lake wetlands. we divided poyanghu national nature reserve (pyh) into the wucheng (pwc) and hengfeng areas (ph ... | 2014 | 25297076 |
| diet shift and its impact on foraging behavior of siberian crane (grus leucogeranus) in poyang lake. | the study of habitat selection and diet has a long history in ecology. this is often used to assess the functional roles of wetland in biodiversity conservation. shifting habitat and diet may be one of the survival strategies during extremely adverse conditions. therefore, sudden changes in habitat selection may indicate the deterioration of the habitat quality, and management interventions are necessary. siberian crane (grus leucogeranus) became critically endangered due to loss of habitat, and ... | 2013 | 23823943 |
| [foraging habitat selection of siberian crane (grus leucogeranus) during autumn migration period in the momoge nature reserve]. | in autumn of 2008 and 2009, we studied the foraging habitat selection of siberian crane (grus leucogeranus) in the momoge nature reserve of jilin province. using the resource selection index, resource selection functions, and the chi-squared test, we found that the siberian crane exhibited selectivity in their preferred foraging environments in relation to the distance to human disturbances, vegetation density, coverage and height, foraging vegetation density and water level. interestingly, this ... | 2013 | 23775991 |
| [population and distribution of the siberian crane (grus leucogeranus) wintering in the poyang lakes over the past decade]. | using simultaneous land surveys, we monitored the population size and spatial distribution of wintering siberian cranes at 64 lakes around poyang lake between 1998 and 2010. the results showed that 46 lakes were inhabited by wintering cranes, and in 25 of those, the number of wintering cranes accounted for more than 1% of the siberian cranes' global population. the lakes where over 40.0% of the global population, e.g. 1 280 individuals, included dachahu lake in jiujiang region, and banghu lake a ... | 2012 | 22855441 |
| genetic diversity in siberian crane (grus leucogeranus) based on mitochondrial dna d-loop polymorphism. | | 2016 | 15508586 |
| [assessment of population differentiation using dna fingerprinting and modified wright's fst-statistics]. | using our results and literature data on multilocus dna fingerprinting, we propose a method of obtaining unbiased estimates of the between--population genetic similarity index and a measure of population subdivision based on modified wright's fst-statistics. on the basis of multiple comparison t2 hotelling's test and holmes' procedure, the fst-statistics was applied to assess differentiation of four (pacific and atlantic) subpopulations of humpback whale megaptera novaeangliae, six populations o ... | 2003 | 12669419 |
| [atp content in cryopreserved sperm of siberian white cranes grus leucogeranus (aves: gruiformes)]. | atp contents were studied in the native and cryoconserved sperm of siberian white cranes grus leucogeranus using bioluminescence analysis. the atp content in freshly obtained spermatozoa was 12.7 nmol/10(8) cells. no atp was found in the seminal plasma. in the process of freezing-thawing, the atp concentration in the spermatozoa decreased by 30%. the differences in the dynamics of atp content during cryoconservation of sperm of white cranes and other birds and mammals are discussed. | 2016 | 12071062 |
| [production of interspecies hybrid of cranes by artificial insemination with frozen semen]. | studies of artificial insemination of cranes and cryoconservation of their semen have been carried out in the nursery of rare species at the oka biosphere reserve for many years. the criterion of successful cryoconservation of the semen is the obtaining of fertilized eggs after artificial insemination by the thawed semen. an experiment is described on artificial insemination of females of the white-naped crane grus vipio by the frozen-thawed semen of the siberian white crane g. leucogeranus afte ... | 2016 | 11963553 |
| health promotion attitudes and strategies in older adults. | the purpose of this study was to describe older adults' attitudes and beliefs regarding wellness, self-care, and participation in health promotion activities. six focus groups were conducted with 45 men and women aged 62 to 91. the white crane model of healthy lives for older adults was developed based on the focus group themes. being healthy incorporates multiple components, including functional independence, self-care and management of illness, positive outlook, and personal growth and social ... | 2002 | 11942718 |
| dna fingerprinting in captive population of the endangered siberian crane (grus leucogeranus). | dna fingerprinting was used to estimate genetic diversity within the endangered siberian crane (grus leucogeranus) captive population consisting of several dozens of founders originating from the two wild populations of eastern and western siberia. similarity and difference among captive individuals were demonstrated by the unweighted pair-group (upgma) clustering procedure. quantitative characteristics of the eastern and western captive population groups such as average percentage differences ( ... | 1995 | 8582369 |
| white crane senior health center spreads its wings. | | 1986 | 10277018 |
| [potential habitat and priority protection area of cranes with climate change in the great xing'an mountains, china]. | to clarify the impacts of climate change on the potential distribution of six crane species in the great xing'an mountains region, and promote the effective protection of these species, we selected key environmental variables such as climate, topography, and vegetation type based on pearson correlation and jackknife analysis, and modeled the potential distribution of six crane species in the great xing'an mountains using maxent with the current and the future climate change scenarios (rcp4.5 and ... | 2019 | 31418249 |
| drivers of a habitat shift by critically endangered siberian cranes: evidence from long-term data. | many waterbird populations have become increasingly dependent on agricultural habitats for feeding. while habitat destruction has been proposed as a key reason forcing waterbirds to move from natural habitats to agricultural habitats, few have used long-term data to test this hypothesis. the siberian crane (leucogeranus leucogeranus) is an iucn critically endangered species. about 98% of its global population winters at poyang lake, china. recently, many cranes shifted from feeding in natural we ... | 2020 | 33144948 |
| the far east taiga forest: unrecognized inhospitable terrain for migrating arctic-nesting waterbirds? | the degree of inhospitable terrain encountered by migrating birds can dramatically affect migration strategies and their evolution as well as influence the way we develop our contemporary flyway conservation responses to protect them. we used telemetry data from 44 tagged individuals of four large-bodied, arctic breeding waterbird species (two geese, a swan and one crane species) to show for the first time that these birds fly non-stop over the far east taiga forest, despite their differing ecol ... | 2018 | 29479493 |
| [long sperm storage in the siberian crane (grus leucogeranus pallas): analysis of paternity and relatednessunder artificial insemination]. | using ten microsatellite loci, paternity analysis has been conducted for 71 individuals of the siberiancrane (grus leucogeranus pallas) obtained under artificial insemination in oka crane breeding center in2001–2014. the fathers of 39 chicks were the sires whose sperm was used for insemination directly before fertilizedegg laying. paternity of 23 fertilizations belonged to the sires whose sperm was used in the beginning ormiddle of insemination cycle. nine cases of fertilization resulted from na ... | 2018 | 30272410 |