Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| diester waxes containing 2-hydroxy fatty acids from the uropygial gland secretion of the white stork (ciconia ciconia). | the uropygial gland of the white stork secrets mono- and diester waxes as well as triglycerides, all of which contain unbranched medium chain fatty acids. n-decanol and n-dodecanol have been the only alcohols detected in both types of waxes. the diester waxes contain 2-hydroxy fatty acids. | 1976 | 994752 |
| [endemic poxvirus infection in white storks (ciconia ciconia) and black storks (ciconia nigra) in switzerland]. | thirty young white storks (ciconia ciconia) and black storks (ciconia nigra) from a stork restocking station in switzerland suffered from cutaneous, verrucous pox-efflorescences on legs, feet, beak and eyelids. the poxvirus was demonstrated ultrastructurally. as the endemic was in autumn, mosquitos may be a possible vector. it is uncertain, if the disease is connected with the previously imported storks from the federal republic of germany. | 1990 | 2160728 |
| hematology and blood chemistry of chicks of white and black storks (ciconia ciconia and ciconia nigra). | 1. the hematology and blood chemistry of 15-68-day-old chicks have been studied. 2. red cell numbers (1,900,000/mm3), hemoglobin content (11.5 g/dl) and hematocrit (37.5) were similar in both species of storks. 3. total numbers of leucocytes (63,000/mm3) were similar in both species, whilst differential leucocyte counts were not. 4. higher levels of plasma protein, got and cholesterol in hdl were found in white storks when compared with black storks but not differences were detected in plasma le ... | 1989 | 2573467 |
| the transport of plasma thyroxine in white storks (ciconia ciconia) and the association of high levels of plasma transthyretin (thyroxine-binding prealbumin) with moult. | antisera raised against domestic fowl transthyretin (thyroxine-binding prealbumin) and quail albumin were used to identify thyroxine-binding proteins in the plasma of white storks (ciconia ciconia) and to measure seasonal changes in these proteins. three plasma proteins were shown to bind thyroxine (t4). they were albumin, transthyretin and a protein with an electrophoretic mobility on non-denaturing polyacrylamide gel electrophoresis intermediate between albumin and transthyretin. there was no ... | 1988 | 3128623 |
| [hematocrit, blood glucose and blood urea in white storks (ciconia ciconia, l.)]. | 1986 | 3533502 | |
| contribution to knowledge of the comparative morphogenesis of the nasal apparatus in the white stork ciconia ciconia l. (morphogenesis of the nasal capsule, the epithelial nasal tube and the organ of jacobson in sauropsida xiii). | 1985 | 3988179 | |
| hemoglobin of the adult white stork (ciconia ciconia, ciconiiformes). the primary structure of alpha a- and beta-chains from the only present hemoglobin component. | the hemolysate obtained from erythrocytes of the adult white stork (ciconia ciconia) contains only one hemoglobin component, identified to be hba. the complete primary structures of alpha a- and beta-chains are presented. the minor hemoglobin component hbd with alpha d-chains usually present in adult avian species was not detected by the white stork. the sequence was determined by automatic edman degradation of tryptic peptides and in the case of beta-chains additionally of the c-terminal peptid ... | 1984 | 6500517 |
| cytotaxonomy of the ciconiiformes (aves), with karyotypes of eight species new to cytology. | somatic karyotypes of 13 species of ciconiiform birds, phoenicopterus ruber chilensis, phoeniconaias minor, cochlearius cochlearius, geronticus eremita, threskiornis molucca, t. spinicollis, balaeniceps rex, ciconia ciconia, c. nigra, euxenura maguari, xenorhynchus asiaticus, ephippiorhynchus senegalensis, and leptoptilos crumeniferus are presented. the chromosomes of eight of these species are described in detail for the first time. of special interest are a case of structural heterozygosity in ... | 1982 | 7151490 |
| [immunoprophylaxis against newcastle disease in white storks: vaccine selection and preliminary experiences]. | criteria for the selection of vaccines against newcastle disease are presented. questions related to safety and potency are considered. intramuscular vaccination of 23 young storks with an inactivated vaccine is described. all storks tolerated the vaccination without recognizable undesired side-effects. the young storks reacted with the production of serum antibodies three weeks post vaccination. no data is yet available on the duration of the persistence of humoral antibodies. the vaccinated ma ... | 1994 | 7940510 |
| first isolation of tandemly repeated dna sequences in new world vultures and phylogenetic implications. | a highly repeated dna sequence composed of closely related subunits that ranged from 171 to 176 base pairs has been cloned and characterized in the king vulture (sarcoramphus papa). related sequences were also isolated in the black vulture (coragyps atratus). this new family of avian repetitive dna elements is here termed the "haeiii family." genomic dnas from a number of avian species were probed with one of the king vulture restriction fragments. in the cathartids, the hybridization patterns s ... | 1996 | 8851796 |
| identification of the sex of oriental white stork, ciconia boyciana, by the polymerase chain reaction based on its sex chromosome-specific dna sequences. | southern blotting of hindiii-digested genomic dnas from the female and male oriental white stork (ciconia boyciana) with the ee0.6 probe cloned from the w chromosome of chicken (gallus domesticus) produced a 3.0-kb w chromosome-derived band specific to the female and a 3.5-kb z chromosome-derived band common to both sexes. these two genomic fragments were cloned and the counterpart sequences to that of ee0.6 in these fragments, xh0.6 and xh0.6rsm (xh0.6-related sequence in the male), respectivel ... | 1997 | 9248046 |
| hematological and plasma biochemical reference intervals in young white storks. | hematological and plasma chemistry parameters were measured in 129 juvenile white storks (ciconia ciconia), either wild or captive bred, april to june 1994. wild storks were members of a colony in the lozoya river valley, madrid, spain. red blood cells count, packed cell volume and hemoglobin increased significantly with age. white blood cells count, lymphocytes count and platelets decreased with age. total solids, total proteins, fibrinogen, albumin, alpha, beta, gamma-globulins and urea increa ... | 1997 | 9249684 |
| squamous cell carcinoma in an immature common stork (ciconia ciconia). | an immature common stork (ciconia ciconia) was referred from the wildlife recovering center to the department of surgery for evaluation. physical examination revealed a partially ulcerated, necrotic mass on the left surface of the upper beak. the mass was surgically removed and classified histologically as a squamous cell carcinoma. postsurgically, the bird recovered uneventfully and proceeded to mature normally. during this growth period, no tumor recurrence or metastasis was detected, and no l ... | 1998 | 9638634 |
| first report of thelazia sp. from a captive oriental white stork (ciconia boyciana) in japan. | nematodes of the genus thelazia were recovered from the cornea and inferior conjunctival sac of an immature oriental white stork (ciconia boyciana). the bird hatched and reared at the toyooka oriental white stork breeding center, hyogo prefecture, japan, but died of chlamydiosis. there were neither gross nor histopathologic ophthalmic lesions. the eye worm from a bird is believed to be first reported in japan. as regarding reintroduction plan for the oriental white stork, control measures for pr ... | 1999 | 10027175 |
| diet explains interpopulation variation of plasma carotenoids and skin pigmentation in nestling white storks. | carotenoids have a dietary origin in birds, but mechanisms by which they are absorbed in the gut, transported in the blood, metabolized at various sites, and deposited in the integument remain poorly understood. variation in both plasma carotenoid levels and external color may reflect different access to dietary carotenoids or individual physiological differences in the uptake and deposition of carotenoids. we compared total plasma carotenoid concentration in nestling white storks (ciconia cicon ... | 2008 | 10685911 |
| determination of the complete nucleotide sequence and haplotypes in the d-loop region of the mitochondrial genome in the oriental white stork, ciconia boyciana. | the complete nucleotide sequence of the mitochondrial genome of the oriental white stork, ciconia boyciana, has been determined from captive storks by a novel method incorporating long pcr and shotgun sequencing. 13 protein-coding genes, two ribosomal rna genes and 22 transfer rna genes were identified as in other vertebrate mitochondrial genomes. the position and direction of the nadh6 and trna-glu genes were the same as previously reported for avian mitochondrial genomes. a 71 bp direct repeat ... | 2000 | 10846618 |
| predicting the time to quasi-extinction for populations far below their carrying capacity. | populations threatened by extinction are often far below their carrying capacity. a population collapse or quasi-extinction is defined to occur when the population size reaches some given lower density. if this density is chosen to be large enough for the demographic stochasticity to be ignored compared to environmental stochasticity, then the logarithm of the population size may be modelled by a brownian motion until quasi-extinction occurs. the normal-gamma mixture of inverse gaussian distribu ... | 2000 | 10931759 |
| astaxanthin is the major carotenoid in tissues of white storks (ciconia ciconia) feeding on introduced crayfish (procambarus clarkii). | we studied the carotenoid pigments in plasma, skin and body fat of white storks (ciconia ciconia) from a colony in spain feeding mainly on the recently introduced red swamp crayfish (procambarus clarkii). in control colonies, where crayfish was absent, plasma was collected for comparison. our objective was to determine whether the astaxanthin contained in the crayfish reached the blood, accumulated in fat, and finally was deposited in the red-colored bill and legs. if that was true, the visual c ... | 2000 | 11007176 |
| giardiasis in a white stork in the netherlands. | giardia sp. was found in the white stork (ciconia ciconia) in the netherlands for the first time. the giardia sp. trophozoites that were found in the feces of a 6-wk-old white stork, were examined by light microscopy. the parasites closely resembled giardia ardeae that had been isolated by others from several species of wading birds belonging to the order ciconiiformes, sharing a deeply notched adhesive disk, a single caudal flagellum, and a single round median body. serologically, the parasites ... | 2000 | 11085441 |
| assessment of genotoxic damage by the comet assay in white storks (ciconia ciconia) after the doñana ecological disaster. | single cell gel electrophoresis, the so-called "comet" assay, was performed as a genotoxicity test in white storks sampled in an area heavily contaminated after the ecological disaster in south western spain. this disaster occurred as a consequence of a massive toxic spillage of acid waste rich in heavy metals that impacted on the doñana national park. the importance of this protected area as a breeding and wintering site for many endangered bird species makes this analysis of dna damage of spec ... | 2001 | 11320147 |
| intercontinental transmission of west nile virus by migrating white storks. | 2001 | 11485657 | |
| identification and analysis of a new hepadnavirus in white storks. | we identified, cloned, and functionally characterized a new avian hepadnavirus infecting storks (sthbv). sthbv has the largest dna genome of all avian hepadnaviruses and, based on sequence and phylogenetic analysis, is most closely related to, but distinct from, heron hepatitis b virus (hhbv). unique for sthbv among the other avian hepadnaviruses is a potential hnf1 binding site in the pres promoter. in common only with hhbv, sthbv has a myristylation signal on the s and not the pres protein, tw ... | 2001 | 11601923 |
| are non-migrant white storks (ciconia ciconia) able to survive a cold-induced fast? | northwestern european populations of white storks (ciconia ciconia) have been restored by settling young birds which, after having been maintained captive for 3 years, do not migrate when released. since they are still supplied with food, the question we address here is how settled white storks would cope with a fast resulting from a cold spell if food were no longer available. we therefore measured daily body mass loss, nitrogen excretion and daily energy expenditure under natural photoperiod a ... | 2001 | 11672686 |
| dna damage in birds after the mining waste spill in southwestern spain: a comet assay evaluation. | in april 1998, an ecological disaster resulting from a massive toxic spill of mining acid waste rich in heavy metals posed a serious threat to the doñana national park in southwestern spain. this especially important protected area is the nesting and breeding site for many endangered bird species; white storks (ciconia ciconia) and black kites (milvus migrans) are considered the more representative. the suitability of the comet assay as a biomarker for genotoxic analysis in environmental biomoni ... | 2001 | 11797841 |
| introduction of west nile virus in the middle east by migrating white storks. | west nile virus (wnv) was isolated in a flock of 1,200 migrating white storks that landed in eilat, a town in southern israel, on august 26, 1998. strong, hot westerly winds had forced the storks to fly under considerable physical stress before reaching the agricultural land surrounding the town. most of the flock were fledglings, <1 year old, which had hatched in europe. thirteen dead or dying storks were collected 2 days after arrival and submitted to the laboratory for examination. four wnv i ... | 2002 | 11971773 |
| the role of birds in the ecology of west nile virus in europe and africa. | surveys on wild birds conducted during the last two decades in europe, notably poland and the czech republic, to determine their infection rate with wn virus have revealed endemic foci of infection. some species of seropositive birds were nonmigrators while others were hatchlings of migrating species. persistently infected avian reservoirs are potential sources of viruses for mosquitoes that multiply in the temperate european zone in hot, wet summers. in the past, evidence for geographical circu ... | 2002 | 12082995 |
| [the helminth fauna of indigenous white storks (ciconia ciconia)]. | 120 carcasses of white storks originating from the federal countries saxonia-anhalt and brandenburg where examined between 1994 and 2000 for internal parasites. the established parasite spectrum consisted of 8 trematode (tylodelphis excavata, chaunocephalus ferox, cathemasia hians, echinostoma revolutum, echinoparyphium sp., monilifer spinulosus, ignavia ciconiae and brachylaimus sp.), 4 cestode (anomotaenia discoidea and 3 hymenolepidae species) and at least 3 nematode species (capillaria spp., ... | 2002 | 12481650 |
| isotopic identification of the sources of lead contamination for white storks (ciconia ciconia) in a marshland ecosystem (doñana, s.w. spain). | white storks (ciconia ciconia) fed in contaminated waters resulting from the aznacollar acid mining-sludge spillage into the r. guadiamar, which feeds the eastern flank of the guadalquivir marshes (doñana), s.w. spain. the sludge was rich in a range of toxic elements, and in organic pollutants such as the aromatic amines. storks did not exhibit elevated metals in their blood immediately following the accident, but chick blood collected the year following the accident showed genotoxic damage comp ... | 2002 | 12685473 |
| chaunocephalus ferox in free-living white storks in central spain. | ten out of 42 (23.8%) white storks (ciconia ciconia) admitted to two rehabilitation centers in central spain had lesions caused by the trematode chaunocephalus ferox in the small intestinal wall. fourteen of the examined birds were adults, five were subadults, and 23 were chicks of various ages. parasitation was 32% (n = 8) in chicks and 13% (n = 2) in adult birds, whereas no juvenile bird was affected. among dead birds, stork chicks affected by c. ferox lesions had a lower body weight (2196.1 g ... | 2003 | 12887215 |
| [sequence variation of mitochondrial cytochrome b gene and phylogenetic relationships among twelve species of charadriiformes]. | studies of the phylogenetic relationships of the charadriiformes have been largely based on conservative morphological characters. during the past 10 years, many studies on the evolutionary biology of birds adopted phylogenetic information obtained from mitochondrial dna, but few work on the charadriiformes has been reported to date. therefore, phylogenetic relationships and classification of the charadriiformes remains controversial. in this study, we try to shed light on these relationships vi ... | 2003 | 12924155 |
| [mallophaga in storks (ciconiidae) with special reference to mallophaga in white storks in the wrocław zoological garden]. | 1958 | 13604267 | |
| [a new strain of nematode skrjabinocara parvepapillata sp. n. from ciconia ciconia l. and ciconia nigra l]. | 1962 | 14467976 | |
| a 4 year follow-up analysis of genotoxic damage in birds of the doñana area (south west spain) in the wake of the 1998 mining waste spill. | a total of 330 white storks (ciconia ciconia) and 138 black kites (milvus migrans) were blood sampled during four consecutive years in an area heavily contaminated as a consequence of a massive spillage of toxic acid mining waste rich in heavy metals that impacted on the doñana national park (south western spain), in april 1998. the alkaline single cell gel electrophoresis (comet) assay was performed as a genotoxicity test, in order to assess whether the high level of dna damage first detected b ... | 2004 | 14681314 |
| migratory orientation of first-year white storks (ciconia ciconia): inherited information and social interactions. | we used satellite tracking to study the migratory orientation of juvenile white storks from the population in the kaliningrad region (russia) during their first autumn migration. two series of experiments were performed. in the first series of experiments, several groups of first-year storks were raised in an aviary, kept there until all free-living conspecifics had left the area and then released. these birds had to select their migratory route on the basis of the inherited directional informat ... | 2004 | 14766952 |
| adaptive allocation of stress-induced deformities on bird feathers. | physiological stress during ontogeny is known to cause abnormalities in keratin structures of vertebrates, but little is known about if and how organisms have evolved mechanisms to reduce the negative effects of these abnormalities. stress experienced during avian feather growth is known to lead to the formation of fault bars, and thereby to the weakening of feathers because of shortage and slimming of barbules. here we propose and test a new hypothesis (the 'fault bar allocation hypothesis') ac ... | 2004 | 15009263 |
| toxoplasma gondii antibodies in the white stork ciconia ciconia. | the prevalence of toxoplasma gondii in chicks of wild birds and captive individuals was studied in the poznań environs and in the poznań zoological garden in the years 2002-2003. bird blood was tested for t. gondii antibodies by an indirect fluorescent antibody test. t. gondii antibodies were detected from 5.8% of 205 analysed white stork chicks and 13.6% of 44 analysed adult storks in the zoo. because toxoplasmosis is one of the more common parasitic zoonoses worldwide, we briefly discuss the p ... | 2004 | 15298054 |
| sexual dimorphism of acoustic signals in the oriental white stork: non-invasive identification of sex in birds. | identification of the sex of birds is important for captive breeding of endangered species. in the oriental white stork (ciconia boyciana), an endangered species, both sexes produce an acoustic signal called "clatter" by rattling their mandibles together to generate sounds. we examined the structure of male and female clatter to determine whether clatter is sexually dimorphic. the acoustic structure of the clatter of the two sexes proved to be dimorphic with respect to the fundamental frequency; ... | 2004 | 15333993 |
| clinical pathology of nestling marabou storks in uganda. | packed cell volumes (pcv) and plasma chemistry parameters were measured in 20 nestling marabou storks (leptoptilos crumeniferus) in january 2003 that were a part of a colony located in the center of the city of kampala, uganda. there were no significant differences (p> or =0.05) in plasma chemistry values or pcv between sexes with the exception of globulin and total plasma protein values, which were higher in females. there were significant differences (p< or =0.05) in blood glucose, creatine ki ... | 2004 | 15465733 |
| influence of a mine tailing accident near doñana national park (spain) on heavy metals and arsenic accumulation in 14 species of waterfowl (1998 to 2000). | this article presents the impact on waterbirds in doñana national park (spain) of an accidental release of 5 million m3 acid waste produced by the processing of pyrite ore. heavy metals (zinc, copper, cadmium, and lead) and arsenic were measured in several soft tissues (liver, kidney, and muscle) taken from 14 waterfowl species collected between april 1998 and may 2000. the main source of copper and zinc found in the waterfowl species examined was the spill waste, whereas cadmium, lead, and arse ... | 2004 | 15499503 |
| the israeli strain is-98-st1 of west nile virus as viral model for west nile encephalitis in the old world. | west nile virus (wnv) recently became a major public health concern in north america, the middle east, and europe. in contrast with the investigations of the north-american isolates, the neurovirulence properties of middle-eastern strains of wnv have not been extensively characterized. israeli wnv strain is-98-st1 that has been isolated from a white stork in 1998, was found to be highly neuroinvasive in adult c57bl/6 mice. strain is-98-st1 infects primary neuronal cells from mouse cortex, causin ... | 2004 | 15550172 |
| enterotoxaemia involving beta2-toxigenic clostridium perfringens in a white stork (ciconia ciconia). | 2005 | 15937244 | |
| skeletal pathology in white storks (ciconia ciconia) associated with heavy metal contamination in southwestern spain. | in 1998, a mine tailings dyke in southwestern spain broke, flooding the agrio-guadiamar river system with acid tailings up to the borders of one of the largest breeding colonies of white storks in the western palearctic, dehesa de abajo. over the following years, a high proportion of nestlings developed leg defects, prompting this study. ten fledglings with leg deformities from the spill area were compared with 11 normal storks of the same year class from another region far from the spill. howev ... | 2005 | 16036861 |
| age-related variation in the adrenocortical response to stress in nestling white storks (ciconia ciconia) supports the developmental hypothesis. | the post-natal development of the adrenocortical response to stress was investigated in european white storks. sixty wild nestlings aged 24-59 days old were subjected to a standardized capture and restraint protocol, and the time-course pattern of the response to stress was assessed through determination of circulating corticosterone in blood samples collected at five fixed times during the 45-min period following capture. the time course of the response was best fit to a third-order function of ... | 2006 | 16624312 |
| relationships between t-cell-mediated immune response and pb, zn, cu, cd, and as concentrations in blood of nestling white storks (ciconia ciconia) and black kites (milvus migrans) from doñana (southwestern spain) after the aznalcóllar toxic spill. | in the aznalcóllar mining accident (april 1998), nearly six million cubic meters of toxic wastes were spilled in the surroundings of the doñana national park (southwestern spain). the present study focused on the likely effects of metal pollution on the immune system of nestling white storks (ciconia ciconia) and black kites (milvus migrans) sampled in the nearby area. using the phytohaemagglutinin skin test, we examined cell-mediated immune response (cmi) in relation to pb, zn, cu, cd, and as c ... | 2006 | 16629156 |
| disrupted bone metabolism in contaminant-exposed white storks (ciconia ciconia) in southwestern spain. | in 1998, the aznalcóllar mine tailings dyke in southwestern spain broke, flooding the agrio-guadiamar river system with acid tailings up to the borders of one of the largest breeding colonies of white storks in the western palearctic, dehesa de abajo. over the following years, a high proportion of nestlings developed leg defects not seen before the spill, prompting this study. nestlings with deformed legs had significantly lower plasma phosphorous (p) and higher ca:p ratios than non-deformed coh ... | 2007 | 16769163 |
| persistent organochlorine residues in livers of six species of ciconiiformes (aves) from spain. | liver samples of 42 birds belonging to 6 species of ciconiiformes (grey heron (n = 17), little egret (n = 12), cattle egret (n = 1), glossy ibis (n = 1), little bittern (n = 1), and white stork (n = 10)), collected from two different zones of spain (ebro delta and madrid) in 1992-1997, were analyzed for organochlorine pesticides and pcbs. sigmapcbs (sum of concentrations of individual congeners), p,p'-dde, hcb, gamma-hch, and heptachlor epoxide were the most prevalent residues detected in all sa ... | 2006 | 16785174 |
| climate and spatio-temporal variation in the population dynamics of a long distance migrant, the white stork. | 1. a central question in ecology is to separate the relative contribution of density dependence and stochastic influences to annual fluctuations in population size. here we estimate the deterministic and stochastic components of the dynamics of different european populations of white stork ciconia ciconia. we then examined whether annual changes in population size was related to the climate during the breeding period (the 'tap hypothesis' sensu saether, sutherland & engen (2004, advances in ecol ... | 2006 | 16903045 |
| evaluation of genotoxic effects of heavy metals and arsenic in wild nestling white storks (ciconia ciconia) and black kites (milvus migrans) from southwestern spain after a mining accident. | studies of birds from doñana (southwestern spain) after the aznalcóllar mining accident (april 1998) have reported high levels of genetic damage when compared to conspecifics from reference areas. however, potential relationships between dna damage and metal pollution have not yet been reported. the aim of the present study was to investigate the current levels of zn, pb, as, cu, and cd and to determine if they were associated with the genetic damage observed in free-living, nestling white stork ... | 2006 | 17022423 |
| adrenocortical response to stress and thyroid hormone status in free-living nestling white storks (ciconia ciconia) exposed to heavy metal and arsenic contamination. | endocrine parameters have proven useful in the detection of early or low-level responses to pollutants. although most of the studies on endocrine modulation have been focused on processes involving gonadal steroids, contaminants may target other parts of the endocrine system as well. in this study we examined the adrenocortical stress response and thyroid hormone status in free-living nestling white storks (ciconia ciconia) in relation to heavy metals (zinc, lead, copper, cadmium) and arsenic le ... | 2006 | 17035132 |
| [mallophaga (insecta) species occurring on storks (ciconia ciconia linnaeus, 1758)]. | this study was carried out in order to determine the presence of mallophaga species on storks in konya, turkey. for this purpose, 15 storks were inspected for chewing lice in march 2003. the lice collected from the storks were preserved in a vial containing 70% alcohol. they were cleared in lactophenol for a few days and mounted on slides in the faure-forte medium. thirteen storks were found to be infested with lice. in addition, one tick was found on a stork. a total of 1316 lice were collected ... | 2006 | 17160857 |
| plasma phenylacetate and 1-naphthyl acetate hydrolyzing activities of wild birds as possible non-invasive biomarkers of exposure to organophosphorus and carbamate insecticides. | organophosphorus and carbamate insecticides inhibit the carboxylesterases found in plasma. therefore, these carboxylesterases might be used as biomarkers of exposure to these insecticides. this work initiates the characterization of the phenylacetate (pa) and 1-nafthylacetate (na) hydrolyzing activities (paase and naase) in the plasma of 11 different wild bird species and aims to determine their suitability as biomarkers of exposure. paase activity values, expressed as mumol product/30min/ml pla ... | 2007 | 17174487 |
| house sparrows benefit from the conservation of white storks. | as with many farmland bird species, the house sparrow passer domesticus is declining in europe, mainly due to intensification of agriculture reducing nest sites and food supplies. during 2002-2005, we studied the population size and nest site characteristics of house sparrows breeding within white stork ciconia ciconia nests in a large area of agricultural landscape within western poland. to explain sparrow density within stork nests, we examined characteristics of white stork nests (position, a ... | 2007 | 17216183 |
| functional characterization of the single hemoglobin of the migratory bird ciconia ciconia. | hemolysate from white stork displayed a single hemoglobin component, thus resulting into two bands and two globin peaks in dissociating page and reversed phase-hplc, respectively. stripped hemoglobin showed an oxygen affinity higher than that of human hba, a small bohr effect, and a cooperative oxygen binding. a small decrease of oxygen affinity, of the same extent in all the ph range examined, was observed by addition of chloride, thus indicating an unusual chloride-independent bohr effect (del ... | 2007 | 17324599 |
| melatonin and thyroxine response to pollution in white stork nestlings (ciconia ciconia): aspects of rhythmicity and age. | there is growing evidence that ubiquitous environmental contaminants may interfere with vertebrate endocrine systems. the selected endocrine biomarkers are used to indicate the condition of free-ranging populations of wildlife, including avian species. the aim of this study was to determine the impact of environment quality on serum thyroxine (t4) and melatonin (mel) in white stork nestlings (ciconia ciconia) living in different locations: small villages in natural areas surrounded by forests an ... | 2007 | 17535774 |
| fractal bird nest distribution produces scale-free colony sizes. | the spatial distribution of organisms often differs across scales. for instance, colonial bird populations could be described, from large to small scale, as scattered clumps of otherwise regularly distributed breeding pairs. we analysed the distribution of nests of a large colonial population of white storks (ciconia ciconia) and found a fractal pattern in each of the 4 study years. moreover, we found that the often-observed, long-tailed frequency distribution of colony sizes was well described ... | 2007 | 17666378 |
| serologic evidence of west nile virus infections in wild birds captured in germany. | to assess the risk of acquiring a west nile virus (wnv) infection in germany, we investigated samples from migrating and from resident birds. because of their stay in or migration through wnv-endemic regions, these birds are at risk to become infected with wnv. blood samples from 3,399 birds, representing 87 bird species, were collected in germany in 2000 and in 2002-2005. overall, 53 birds belonging to 5 species had wnv-neutralizing antibodies. fifty-nine birds belonging to 9 species were react ... | 2007 | 17690413 |
| genetic origin and success of reintroduced white storks. | after their local extinction in 1954, white storks (ciconia ciconia) were reintroduced to sweden in 1989. the founder population for the reintroduced birds originated in north africa, rather than from the closest breeding population in northeastern europe (defined here as native). a number of wild storks have immigrated spontaneously, and a few others of native origin have been acquired for captive breeding. over the 17 years, 103 of the 241 breeding events by free storks have been by pairs in w ... | 2007 | 17883485 |
| a role for corticosterone and food restriction in the fledging of nestling white storks. | fledging is a critical period in the life of a bird, notably because at this stage under-development and lack of experience in searching for food may impair survival. the behavioral changes that accompany nest departure are therefore expected to be finely tuned to body condition and growth by endocrine processes. this study examines the possible involvement of corticosterone (cort) in the stimulation of fledging in white storks through measurement of the changes in its plasma levels in relation ... | 2008 | 18313056 |
| serologic survey of potential vertebrate hosts for west nile virus in poland. | a survey for antibodies to west nile virus (wnv; genus ,flavivirus) was carried out by plaque-re-duction neutralization microtesting in 78 horses, 20 domestic chickens, and 97 wild birds belonging to 10 species from different areas in poland. specific antibodies were detected in five juvenile (hatching-year) birds collected in 2006: three white storks (ciconia ciconia) in a wildlife rehabilitation center (5.4% of all examined storks; the antibody titers in each bird were 1:320, 1:160, and 1:20), ... | 2008 | 18433332 |
| haemorrhagic enteritis associated with herpesvirus in storks. | herpesvirus infection was diagnosed histologically and electron microscopically in white storks (ciconia ciconia) and abdim storks (ciconia abdimi). the consistent lesions of herpesvirus infection were haemorrhagic enteritis, with a slight mononuclear cellular infiltrate, dilatation of the crypts lined by a flat epithelium, necrotic foci in the spleen, and focal or scattered coagulative necrosis in the liver without cellular reaction. intranuclear inclusion bodies were observed in epithelial cel ... | 1998 | 18483992 |
| risk factors for seropositivity to h5 avian influenza virus in ostrich farms in the western cape province, south africa. | in a 2005 serological survey, carried out in response to an outbreak of h5n2 avian influenza (ai) in ostriches in the eastern cape province, 16.3% of ostrich farms in the western cape province of south africa were found to be seropositive to h5 ai virus. we subsequently carried out a questionnaire-based census survey on all available registered western cape ostrich farms that still existed at the end of 2005 (367 farms, of which 82 were seropositive), in order to identify risk factors associated ... | 2008 | 18486977 |
| the impact of element-element interactions on antioxidant enzymatic activity in the blood of white stork (ciconia ciconia) chicks. | the aim of this work was to determine interrelationships among macroelements na, k, ca, mg, and fe, microelements zn, cu, mn, and co, and toxic heavy metals pb and cd in the blood of white stork ciconia ciconia, during postnatal development, in different polish environments, and their impact on the activity of antioxidant enzymes. we considered the content of thiobarbituric acid-reactive substances (tbarss), i.e., malondialdehyde (mda), and activity of superoxide dismutase (sod), catalase (cat), ... | 2009 | 18600367 |
| nonlinear impact of climate on survival in a migratory white stork population. | 1. there is growing evidence that ongoing climate change affects populations and species. physiological limitation and phenotypic plasticity suggest nonlinear response of vital rates to climatic parameters, the intensity of environmental impact might be more pronounced while the frequency of extreme events increases. however, a poor understanding of these patterns presently hampers our predictive capabilities. 2. a recent climatic shift in the sahel, from droughty to less severe condition, offer ... | 2008 | 18624741 |
| assessing the impact of climate variation on survival in vertebrate populations. | the impact of the ongoing rapid climate change on natural systems is a major issue for human societies. an important challenge for ecologists is to identify the climatic factors that drive temporal variation in demographic parameters, and, ultimately, the dynamics of natural populations. the analysis of long-term monitoring data at the individual scale is often the only available approach to estimate reliably demographic parameters of vertebrate populations. we review statistical procedures used ... | 2008 | 18715402 |
| persistent viraemia of a cell-associated herpesvirus in white storks (ciconia ciconia). | heparinised blood samples from white storks were assayed for the presence of stork herpesvirus in peripheral leukocytes and neutralising antibodies in blood plasma against stork herpesvirus during a 3 year period. a total of 12 herpesvirus isolants were obtained. the presence of neutralising circulating antibodies does not preclude viraemia. most of the infectivity of the isolated viruses remained cell-associated in chicken embryo fibroblast and chick kidney cell cultures. | 1986 | 18766545 |
| herpesviruses and newcastle disease viruses in white storks (ciconia ciconia). | three herpesviruses were isolated from white storks (ciconia ciconia). all isolates reacted in cross-neutralisation tests with homologous antisera and with sera prepared against a herpesvirus from a black stork (ciconia nigra). these data indicate serologic relatedness of the herpesviruses from both stork species. antisera prepared against herpesviruses from the domestic chicken (viruses of marek's disease and infectious laryngotracheitis), turkey, duck and pigeon as well as from the blue-fronte ... | 1983 | 18766791 |
| the bird species of kumasir lake (kahramanmaras-turkey) and a view of environmental ethics on sustainable wetland management. | kumasir lake is located next to towns of donuklu and fatih, nine km west of kahramanmaras city center the region of east mediterranean, turkey this lake is of crucial importance from the point of native and immigrant birds. we located 17 birdspecies in this area during our observations carried out in the spring and autumn of 2005-2006. these were ciconia ciconia l., anas platyrhynchos l., accipiter nisus l., accipiter brevipes l., fulica atra l., columba palumbus l., merops apiaster l., upupa ep ... | 2008 | 18972701 |
| ecophysiological determinations of antioxidant enzymes and lipoperoxidation in the blood of white stork ciconia ciconia from poland. | the aim of this study was to investigate the activity of antioxidant enzymes in the blood of white stork ciconia ciconia chicks (aged 19-54 days) in poland in 2006. we took under consideration superoxide dismutase (sod), catalase (cat), ceruloplasmine (cp), glutathione peroxidase (gpx), glutathione reductase (gr) and the content of thiobarbituric acid-reactive substances (malondialdehyde) in polluted (copper manufacture), suburban areas, at the odra meadows, and at swamps near baltic sea in the ... | 2009 | 19019353 |
| cathaemasia hians (trematoda: cathaemasiidae) infecting black stork nestlings (ciconia nigra) from central spain. | the trematode cathaemasia hians is recorded for the first time in nestling black storks, and for the first time in black storks in spain. the parasite was found in the upper part of the oesophagus of black storks (ciconia nigra). presence of this parasite in three nestlings raises the possibility of completion of the parasite's life cycle in europe. in addition, a sub-adult bird recuperating from bone fractures was also found to be infected. c. hians is apparently absent from the more common whi ... | 2001 | 19184946 |
| seasonal variation in energy expenditure and body composition in captive white storks (ciconia ciconia). | north western european populations of white storks (ciconia ciconia) appear to have been saved from extinction by settling, i.e. stopping migration. settled storks exposed to winter conditions must cope with periods of potentially high energy demands that would otherwise be avoided by the migration process. doubly labeled water (dlw) was therefore used to examine the seasonal variation (summer vs winter) in daily energy expenditure (dee) and the body composition of adult and immature storks of b ... | 2010 | 19737621 |
| differences between sexes in digestive efficiency of the white stork ciconia ciconia under experimental conditions. | sex differences in digestive performance may be related to food contents, to body size as well as many other physiological traits. however, evidence for sex differences in the digestion of birds, especially in the case of predators, is scarce. therefore we studied digestive efficiency, and also body size, intestine length and food selection of the wild white stork (ciconia ciconia), under experimental conditions in the poznań zoo. altogether 29 individuals of this species were investigated (9 ma ... | 2009 | 19777964 |
| virological monitoring of white storks (ciconia ciconia) for avian influenza. | between 2003 and 2008, more than 600 white stork (ciconia ciconia) nestlings in the german federal state of brandenburg were ringed and examined for influenza a viruses. with the spread of highly pathogenic avian influenza virus (hpaiv) of subtype h5n1 among wild birds in germany in spring 2006, dead wild birds, including 88 white storks, were tested for infection with hpaiv. furthermore, fresh fecal samples were examined by rt-pcr to monitor the occurrence of hpaiv in adult storks. while the mo ... | 2009 | 20095160 |
| blood chemistry in white stork ciconia ciconia chicks varies by sex and age. | little is known on how blood biochemistry differs among avian chicks, especially in sexually monomorphic species. in this study we sampled blood chemistry of 342 white stork ciconia ciconia chicks from nests in western poland during four years (2005-2008). special attention was paid to the effect of chick age and sex on blood biochemistry. since white stork is a monomorphic species, the sex of chicks was established by a molecular technique. nine blood biochemical parameters were studied: total ... | 2010 | 20298797 |
| fungal pneumonia as a major cause of mortality in white stork (ciconia ciconia) chicks. | white stork (ciconia ciconia) chicks have previously been suggested to be particularly susceptible to environmental conditions such as climatic changes during their first 3 wk of life. however, limited data are available on causes of mortality in free-ranging birds prior to fledging in general. one hundred and one white stork chicks found dead in 2007 and 2008 were examined and the causes of death identified. of these, 44.6% had fungal granulomatous pneumonia resulting in obstruction and compres ... | 2010 | 20408405 |
| detection of low pathogenic avian influenza viruses in wild birds in castilla-la mancha (south central spain). | the iberian peninsula is located along the east atlantic and black sea/mediterranean flyways and is the third ranking european country as wintering quarter for wild migrating birds after turkey and rumania. for these reasons, spanish wetlands are of importance in aiv surveillance, and of great interest for the study of the epidemiology of lpaiv under mediterranean climate conditions. nevertheless, information on prevalence of lpaiv viruses in spain is still scarce and is restricted to two serolo ... | 2010 | 20605691 |
| hematologic and plasma biochemistry values in white storks (ciconia ciconia). | hematologic and plasma biochemistry parameters of the white stork (ciconia ciconia) were studied. blood samples were taken from a total of 80 adult white storks kept in captivity in hungarian zoos and bird repatriation stations, between 2002 and 2006. hematologic (packed cell volume, 46.3% +/- 5.3%; hemoglobin concentration, 127.8 +/- 20.4 g/l; red blood cell counts, 2.28 +/- 0.35 10(12)/l/l; white blood cell counts, 21.6 +/- 4.2 10(9)/l/ l; heterophils, 61.0% +/- 9.8% [13.1 +/- 3.2 x 10(9)/l]; ... | 2010 | 20722249 |
| mercury in white stork (ciconia ciconia) chick feathers from northeastern mediterranean areas in relation to age, brood size, and hatching order. | mercury (hg) levels in white stork (ciconia ciconia) feathers collected in the mid-1990s from five northeastern mediterranean (greece) areas varied, with mean ranges between 301 ng g(-1) dry weight (dw) (pinios river) and 1911 ng g(-1) dw (sperchios delta). a significant increase of hg levels in chick feathers with age (surrogated by bill size) was found in the evros and pinios river areas, a nonsignificant increase in the amvrakikos gulf and the epirus region, and a marginally significant decre ... | 2011 | 20865253 |
| molecular epidemiology and virulence assessment of aspergillus fumigatus isolates from white stork chicks and their environment. | aspergillus fumigatus is a common pathogen in poultry and captive wild birds and an emerging opportunistic fungal pathogen in immunocompromised humans. although invasive aspergillosis is frequently reported in free-ranging wild birds, the incidence and epidemiology of the disease in a natural setting is unknown. we recently reported endemic outbreaks of invasive aspergillosis at white stork nesting sites close to human habitation in germany with significant subsequent breeding losses. therefore, ... | 2010 | 20880638 |
| air-permeable hole-pattern and nose-droop control improve aerodynamic performance of primary feathers. | primary feathers of soaring land birds have evolved into highly specialized flight feathers characterized by morphological improvements affecting aerodynamic performance. the foremost feathers in the cascade have to bear high lift-loading with a strong bending during soaring flight. a challenge to the study of feather aerodynamics is to understand how the observed low drag and high lift values in the reynolds (re) regime from 1.0 to 2.0e4 can be achieved. computed micro-tomography images show th ... | 2011 | 20938776 |
| understanding soaring bird migration through interactions and decisions at the individual level. | many soaring bird species migrate southwards in autumn from their breeding grounds in europe and central asia towards their wintering grounds. our knowledge about interactions between migrating birds, thermal selection during migration and mechanisms that lead to flocking or convergent travel networks is still very limited. to start investigating these aspects we developed an individual-based simulation model that describes the local interactions between birds and their environment during their ... | 2011 | 21075120 |
| high seroprevalence of antibodies to toxoplasma gondii in wild animals from portugal. | we report an investigation of antibodies to toxoplasma gondii in 52 wild birds and 20 wild mammals from northern and central areas of portugal by using the modified agglutination test. the birds comprised 26 common buzzards (buteo buteo), five tawny owls (strix aluco), four white storks (ceconia ceconia), three eurasian eagle owls (bubo bubo), three northern goshawks (accipiter gentilis), two booted eagles (hieraaetus pennatus), two common barn owls (tyto alba), two eurasian sparrowhawks (accipi ... | 2010 | 21104273 |
| predominance of bde-209 and other higher brominated diphenyl ethers in eggs of white stork (ciconia ciconia) colonies from spain. | polybrominated diphenyl ethers (pbdes) are ubiquitous pollutants for which there is still a lack of knowledge about the environmental behavior and fate of the higher brominated congeners (octa- to deca-bdes). in this study, the pbde content and congener profiles in failed eggs from two colonies of white stork (ciconia ciconia) in spain were studied. the average total pbde concentration was 1.64ng/g (wet weight, w.w.) for the rural colony and 9.08ng/g (w.w.) for the urban colony. higher brominate ... | 2011 | 21193230 |
| chewing lice (phthiraptera) species on wild birds in cappadocia region, turkey. | objective: this study was performed on 70 injured wild birds belonging to 7 different species in the cappadocia region between 2005 and 2009. all birds were inspected for ectoparasites and 29 of 70 (41.4%) birds were found to be infested by at least one chewing louse species. methods: all lice were cleared in 10% koh, mounted in canada balsam on slides and identified under a light microscope. results: the lice were identified as laemobothrion maximum, craspedorrhynchus platystomus, degeeriella f ... | 2010 | 21391187 |
| genetic structure of the oriental white stork (ciconia boyciana): implications for a breeding colony in a non-breeding area. | the oriental white stork (ciconia boyciana) is a threatened species, and their numbers are still in decline due to habitat loss and poaching. china is a breeding and main wintering area for this animal and in recent years some individuals have been found breeding in wintering areas and at some stopover sites. these new breeding colonies are an exciting sign, however, little is understood of the genetic structure of this species. based on the analysis of a 463-bp mitochondrial dna (mtdna) control ... | 2008 | 21396074 |
| dechlorane plus and possible degradation products in white stork eggs from spain. | the occurrence of the emerging chlorinated flame retardant dechlorane plus (dp) and three of its possible degradation products was investigated in white stork eggs from two colonies in spain. the average dp concentrations were 401 pg/g wet weight (w.w.) for the urban/industrial colony and 105 pg/g w.w. for the rural colony. one possible degradation product, anti-[dp-1cl], was found in approximately 10% of the samples. no significant stereoisomer enrichments were detected in any colony based on t ... | 2011 | 21529947 |
| animals as an indicator of carbon sequestration and valuable landscapes. | possibilities of the assessment of a landscape with the use of succession development stages, monitored with the value of the mean individual biomass (mib) of carabid beetles and the occurrence of bird species are discussed on the basis of an example from poland. higher variability of the mib value in space signifies a greater biodiversity. apart from the variability of mib, it is suggested to adopt the occurrence of the following animals as indicators, (in the order of importance), representing ... | 2011 | 21738434 |
| isolation and characterization of microsatellite dna markers for the oriental white stork, ciconia boyciana. | following fiasco protocol and across-amplification approach, we present eleven microsatellite primers of the oriental white stork, ciconia boyciana in this article. all loci were polymorphic, except for locus cbo235, which possessed two alleles but was homozygous in all 23 individuals of c. boyciana used in this study. the number of the alleles per locus ranged from two to eight, and the observed heterozygosity (h(o)) and expected heterozygosity (h(e)) ranged from 0 to 0.857 and 0.222 to 0.851, ... | 2011 | 21801002 |
| [the susceptibility of proteus mirabilis strains isolated from white stork (ciconia ciconia)]. | proteus sp. rods are ubiquitous bacteria, widespread in the environment and classified also as opportunistic human pathogens. the aim of our study was to evaluate susceptibility of proteus mirabilis strains isolated from white stork (ciconia ciconia) regarding as his natural bacterial flora, compare and discuss their results with data obtained from scientific literature for clinical strains of the same species. susceptibility of 59 p. mirabilis strains was estimated for 27 antimicrobials using d ... | 2011 | 22184908 |
| seropositivity and risk factors associated with toxoplasma gondii infection in wild birds from spain. | toxoplasma gondii is a zoonotic intracellular protozoan parasite of worldwide distribution that infects many species of warm-blooded animals, including birds. to date, there is scant information about the seropositivity of t. gondii and the risk factors associated with t. gondii infection in wild bird populations. in the present study, t. gondii infection was evaluated on sera obtained from 1079 wild birds belonging to 56 species (including falconiformes (n = 610), strigiformes (n = 260), ciconi ... | 2011 | 22216311 |
| characterization of cholinesterases in plasma of three portuguese native bird species: application to biomonitoring. | over the last decades the inhibition of plasma cholinesterase (che) activity has been widely used as a biomarker to diagnose organophosphate and carbamate exposure. plasma che activity is a useful and non-invasive method to monitor bird exposure to anticholinesterase compounds; nonetheless several studies had shown that the che form(s) present in avian plasma may vary greatly among species. in order to support further biomonitoring studies and provide reference data for wildlife risk-assessment, ... | 2012 | 22470503 |
| developmental exposure to a toxic spill compromises long-term reproductive performance in a wild, long-lived bird: the white stork (ciconia ciconia). | exposure to environmental contaminants may result in reduced reproductive success and long-lasting population declines in vertebrates. emerging data from laboratory studies on model species suggest that certain life-stages, such as development, should be of special concern. however, detailed investigations of long-term consequences of developmental exposure to environmental chemicals on breeding performance are currently lacking in wild populations of long-lived vertebrates. here, we studied how ... | 2012 | 22529928 |
| isolation of herpesvirus and newcastle disease virus from white storks (ciconia ciconia) maintained at four rehabilitation centres in northern germany during 1983 to 2001 and failure to detect antibodies against avian influenza a viruses of subtypes h5 and h7 in these birds. | herpesvirus isolations from peripheral white blood cells of 253 white storks (ciconia ciconia) were obtained during a long-term study (1983 to 2001). the storks lived for a few months to 20 years at four rehabilitation centres. isolates were obtained from 83 of 253 storks. this herpesvirus is indigenous for storks and unrelated to any other avian herpesvirus. significantly more herpesvirus isolates were obtained during spring than in autumn samplings. the intervals between the first and last vir ... | 2012 | 22834553 |
| pollution-induced oxidative stress and biochemical parameter alterations in the blood of white stork nestlings ciconia ciconia from regions with different degrees of contamination in poland. | this paper aimed to illustrate the most reliable biomarkers to detect pollution-related oxidative stress in white stork nestlings in polluted (from copper manufacture), suburban and odra meadows (as a control area) areas . lipid peroxidation (thiobarbituric acid reactive substances content, tbars) and oxidative modified protein levels (stable 2,4-dinitrophenyl hydrazine derivates of the carbonyl groups) were used as indicators of the oxidative stress, as well as other selected biochemical parame ... | 2012 | 23143755 |
| dissemination of antimicrobial-resistant clones of salmonella enterica among domestic animals, wild animals, and humans. | non-typhoidal salmonellosis is an important zoonotic disease caused by salmonella enterica. this work focuses on the identification of salmonella enterica clonal strains which, presenting a wide distribution potential, express resistance determinants that compromise effectiveness of the antimicrobial therapy. the screening was performed on 506 salmonella enterica isolates from animals and humans, which were characterized by serovar and phage typing, genome macrorestriction and pulsed-field gel e ... | 2013 | 23360170 |
| first detection and genotyping of human-associated microsporidia in wild waterfowl of slovakia. | a total of 47 avian faecal samples of wild waterfowl (great cormorant - phalacrocorax carbo, great crested grebe - podiceps cristatus, white stork - ciconia ciconia) trapped in the eastern slovakia were screened for the presence of human pathogenic microsporidia by microscopy and real-time sybr green pcr method using species primers and sequenced. microscopic analysis showed presence in 32 samples (29 cormorants, 3 dippers). microsporidial dna (encephalitozoon cuniculi genotype i) was identified ... | 2013 | 23377906 |
| foraging habitat use of oriental white stork (ciconia boyciana) recently breeding in china. | the yellow river delta, a stopover site, has become one of the breeding sites of oriental white storks (ciconia boyciana) in china, with 28 breeding pairs. to gain insight into the characteristics of foraging habitat use during the breeding season, we surveyed the foraging habitats in 2009 and 2010. in 2009, using a quadrat sampling technique, we surveyed 74 quadrats in two breeding phases. fourteen variables were analyzed with dca. oriental white storks mainly foraged in the reed swamp of recov ... | 2013 | 23829216 |
| macroanatomic, light and scanning electron microscopic studies of the pecten oculi in the stork (ciconia ciconia). | this study was undertaken to investigate the pecten oculi of stork by using macroscopic, light and electron microscopic techniques. a total of 20 eyes that were obtained from 10 storks were used. the eyes were cleaned and isolated by dissection. after various procedures, four of the pecten oculi were examined by light microscope while the other four with an electron microscope. the remaining 12 eyes were assigned for macroscopic investigation. pecten oculi of the stork were determined as accordi ... | 2013 | 23836700 |
| complex phenological changes and their consequences in the breeding success of a migratory bird, the white stork ciconia ciconia. | 1. the timing of bird migration has shifted in response to climate change. however, few studies have linked the potential consequences of any phenological shift on individual fitness and even fewer have disentangled the role of plasticity and microevolution in the observed shifts. 2. the arrival date and breeding success of white storks (ciconia ciconia) have been recorded since the 1880 s in slovakia. we used data for two periods (1895-1913 and 1977-2007), which were considered, respectively, a ... | 2013 | 23855800 |
| characterization of plasma cholinesterase from the white stork (ciconia ciconia) and its in vitro inhibition by anticholinesterase pesticides. | blood plasma cholinesterase (che) activity is a sensitive biomarker of exposure to organophosphorus (op) and carbamate (cb) insecticides in vertebrates. several studies indicate that more than one che form may be present in blood of birds. in this study the predominant che activity (acetylcholinesterase - ache- or butyrylcholinesterase - bche-), the range of che activity as well as che age-dependent changes in non-exposed individuals of white stork (ciconia ciconia) have been established. the in ... | 2013 | 23962622 |
| [the correlations between population of oriental white stork and climate change in the poyang lake national nature reserve]. | this study analyzed the population dynamics of the oriental white stork (ciconia boyciana) wintering in the poyang lake national nature reserve (plnnr) from 1985 to 2011, to see if there was any relationship with climate change. testing of several climate variables-monthly average temperature, monthly average maximum and minimum temperature, as well as monthly precipitation-indicated that the population size of the oriental white stork in the plnnr was 1,340±178 ind., with significant linear inc ... | 2013 | 24415686 |