| detection of antibodies to alphaviruses and flaviviruses in some migratory birds of the danube delta. | data are reported on the presence of antibodies to some group a(alphavirus) b(flavivirus) arboviruses in 8 species of migratory birds (ardea cinerea, plegadis falcinellus, anas querquedula, anser albifrons, gavia arctica, fulica atra, larus minutes and and phalacrocorax corbo) of the danube delta. | 1978 | 676070 |
| natural infections of clinostomum complanatum (trematoda: clinostomatidae) in wild herons and egrets, tottori prefecture, japan. | nycticorax nycticorax, ardea cinerea, egretta garzetta, and egretta intermedia were naturally infected with clinostomum complanatum (trematoda: clinostomatidae) among fourteen wild herons, seven wild egrets and one wild bittern evaluated at the veterinary hospital of tottori university, tottori, japan. the latter three species of heron and egrets are reported for the first time as definitive hosts of this parasite in japan. | 1992 | 1512884 |
| [the occurrence of escherichia coli, aeromonas hydrophila, plesiomonas shigelloides and clostridium perfringens in the intestinal flora of gray herons (ardea cinerea)]. | the flora of the large intestine of 92 grey herons was examined for the frequency of aerobic and microaerobic growing bacteria. clostridium perfringens, aeromonas hydrophila, plesiomonas shigelloides and e. coli were isolated from 55%, 48%, 14% and 35% of the birds, respectively. it could be demonstrated that the findings of these bacteria in the intestinal flora are depending on the age of the birds. the percentage of carriers of clostridium perfringens, aeromonas hydrophila and plesiomonas shi ... | 1989 | 2548355 |
| isolation of a bedsonial agent in vellore, south india, from the blood of grey herons. | | 1969 | 4884785 |
| gryporhynchus nycticoracis yamaguti, 1956 (dilepididae; cestoda) and apharyngostrigea ardeolina vidyarthi, 1937 (strigeidae; trematoda) from ardea cinerea jouyi clark. | | 1967 | 5299651 |
| serological investigations concerning the presence of antibodies to arboviruses in wild birds. | serum samples from 8 species of migratory birds (ardea cinerea, plegadis falcinellus, anas querquedula, anser albifrons, gavia arctica, fulica atra, phalacrocorax carbo, larus minutus) were tested for the presence of hemagglutination-inhibiting (hai) antibodies to alpha- and flaviviruses. hai antibodies to alphaviruses (eastern equine encephalitis, western equine encephalitis, sindbis, middelburg, semliki forest) ranging in titer from 1/20 to 1/160 were detected in 46 serum samples; 22 serum sam ... | 1984 | 6710861 |
| the development of the head cavities in ardea cinerea l. | | 1953 | 13050280 |
| the development of the eye muscles in ardea cinerea l. | | 1953 | 13064971 |
| a new dilepidid cestode, mashonalepis dafyddi n. g., n.sp., from the gray heron, ardea cinerea 1. | | 1960 | 13800284 |
| investigation of outbreaks of highly pathogenic h5n1 avian influenza in waterfowl and wild birds in hong kong in late 2002. | outbreaks of highly pathogenic h5n1 avian influenza have occurred in hong kong in chickens and other gallinaceous poultry in 1997, 2001, twice in 2002 and 2003. high mortality rates were seen in gallinaceous birds but not in domestic or wild waterfowl or other wild birds until late 2002 when highly pathogenic h5n1 avian influenza occurred in waterfowl (geese, ducks and swans), captive greater flamingo (phoenicopterus ruber) and other wild birds (little egret egretta garzetta) at two waterfowl pa ... | 2004 | 15545029 |
| 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 |
| seasonal morphological variations in bird schistosomes. | the present work is a contribution to the systematics of bilhorziello and dendritobilharzio. wildfowl was killed in hunting seasons or found dead in champagne-ardenne region, france, and autopsied with focus on schistosomes. seven anas plotyrhynchos (mallards), one ardeo cinerea (grey heron) and two cygnus olor (mute swans) were parasitized by bilharziella. one c. olor was parasitized by dendritobilharzia. depending on season and hosts, various morphological forms of bilharziello suggesting seve ... | 2006 | 17007212 |
| skeletal deformities and mortality in grey herons (ardea cinerea) at besthorpe heronry, nottinghamshire. | dead and sick grey heron chicks with multiple fractures of the leg and wing bones and/or bone deformities have been reported at besthorpe nature reserve heronry in north nottinghamshire since 1996. forty-five grey heron carcases were examined, 35 from the besthorpe colony and 10 from other colonies where bone disease was not known to occur. on the basis of the results of radiological studies, postmortem examinations, peripheral quantitative computed tomography scanning and four-point bending tes ... | 2006 | 17041065 |
| [landscape influence on the grey herons colonies distribution]. | we analysed the spatial relationship between the location and the size of the 112 grey heron colonies existing in 1994 in the two refuge areas after their decline of the species in the 19th century in france: south brittany (loire-atlantique and morbihan), and eastern france (haute-saône, saône-et-loire, meurthe-et-moselle, vosges). we tested 35 variables describing the hydrographical network surrounding the colonies from a local to a regional scale using a geographic information system. the res ... | 2006 | 16545763 |
| possible chemical causes of skeletal deformities in grey heron nestlings (ardea cinerea) in north nottinghamshire, uk. | dead and deformed grey heron (ardea cinerea) chicks were reported at a large heronry in north nottinghamshire, uk between 1996 (when systematic visits to the heronry started) and 2002. many of the birds died for no obvious reason but deformities in others included multiple fractures of the tarsus and tibia and metacarpal bones (angel wings). this study aimed to investigate possible chemical causes of these deformities. analysis of eggs and nestling tissue for a range of metals showed no levels o ... | 2006 | 16545424 |
| nonlinear dynamical model and response of avian cranial kinesis. | all modern birds have kinetic skulls in which the upper bill can move relative to the braincase, but the biomechanics and motion dynamics of cranial kinesis in birds are poorly understood. in this paper, we model the dynamics of avian cranial kinesis, such as prokinesis and proximal rhynchokinesis in which the upper jaw pivots around the nasal-frontal (n-f) hinge. the purpose of this paper is to present to the biological community an approach that demonstrates the application of sophisticated pr ... | 2006 | 16242730 |
| brominated flame retardants and organochlorine pollutants in aquatic and terrestrial predatory birds of belgium: levels, patterns, tissue distribution and condition factors. | liver and muscle samples from 7 species of aquatic and terrestrial predatory birds from flanders (belgium) were analysed for polychlorinated biphenyls (pcbs), polybrominated diphenylethers (pbdes) and organochlorine pesticides (ocps). pcbs were the predominant compounds in our samples, which showed highest concentrations in the liver of barn owl (tyto alba) and sparrowhawk (accipiter nisus) (up to 1000 microg/g lipid weight). pbdes could be determined in most samples at lower concentrations than ... | 2006 | 16005130 |
| avian influenza in wild waterfowl and shorebirds in the donana national park: serological survey using the enzyme-linked immunosorbent assay. | the indirect elisa was used to detect antibodies to influenzavirus a in the sera of wildfowl from the donana national park. of the 712 birds examined, 44 (6.2%) were seropositive. positive birds belonged to 10 of the 13 species studied. infection rates varied widely: spoonbill (platalea leucorodia, 32.2%), mallard (anas platyrhynchos, 9.9%), gadwall (anas strepera, 8.6%), red-crested pochard (netta rufina, 8.1%), pochard (aythya ferina, 6.4%), shoveler (anas clypeata, 5%), great crested grebe (p ... | 1994 | 18671098 |
| evidence from nature: interspecies spread of heron hepatitis b viruses. | heron hepatitis b viruses (hhbvs) in three subspecies of free-living great blue herons (ardea herodias) from florida, usa, were identified and characterized. eight of 13 samples were positive in all assays used, whereas sera from egrets, which are also members of the family ardeidae, were negative in the same assays. comparative phylogenetic analysis of viral dna sequences from the pres/s region of previously reported and novel hhbv strains isolated from captive grey herons (germany) and free-ra ... | 2005 | 15831944 |
| first record of contracaecum spp. (nematoda: anisakidae) in fish-eating birds from zimbabwe. | endoparasites of fish-eating birds, phalacrocorax africanus, p. carbo, anhinga melanogaster and ardea cinerea collected from lake chivero near harare, zimbabwe, were investigated. adult contracaecum spp. were found in the gastrointestinal tract (prevalence 100 % in p. africanus, p. carbo and a. melanogaster; 25 % in a. cinerea). parasite intensity was 11-24 (mean 19) in p. africanus, 4-10 (mean 7) in p. carbo, 4-56 (mean 30) in a. melanogaster and 2 (mean 0.5) in a. cinerea. the cormorants fed m ... | 2004 | 15456162 |
| factors influencing liver pcb concentrations in sparrowhawks (accipiter nisus), kestrels (falco tinnunculus) and herons (ardea cinerea) in britain. | large scale temporal and spatial changes in the exposure of terrestrial vertebrates to pcbs have been monitored in the uk by measuring liver residues in sparrowhawks (accipiter nisus), kestrels (falco tinnunculus) and grey herons (ardea cinerea) from throughout the country. residues in the three species are typically characterised by large intra- and inter-specific variation. data for 306 sparrowhawks, 186 kestrels and 47 herons collected between 1992 and 1997 as part of a national predatory bir ... | 2004 | 15276272 |
| organochlorine contamination in bird's eggs from the danube delta. | in this study we report the levels of organochlorine compounds in eggs of aquatic birds from the danube delta, a major european wetland. the eggs were collected in 1997 and belonged to the following species: the mallard (anas platyrhynchos), the greylag goose (anser anser), the mute swan (cygnus olor), the coot (fulica atra), the glossy ibis (plegadis falcinellus), the spoonbill (platalea leucorodia), the little egret (egretta garzetta), the night heron (nycticorax nycticorax), the grey heron (a ... | 2000 | 15092913 |
| new primers for sex identification in the chinese egret and other ardeid species. | using the universal p2/p8 primers, we were able to obtain the gene segments of chromo-helicase-dna binding protein (chd)-z and chd-w from ten species of ardeid birds including chinese egret (egretta eulophotes), little egret (e. garzetta), eastern reef egret (e. sacra), great egret (ardea alba), grey heron (a. cinerea), chinese pond-heron (ardeola bacchus), cattle egret (bubulcus ibis), black-crowned night-heron (nycticorax nycticorax), cinnamon bittern (ixobrychus cinnamomeus) and yellow bitter ... | 2011 | 21429119 |
| accumulation of nutrients in soils affected by perennial colonies of piscivorous birds with reference to biogeochemical cycles of elements. | the accumulation of selected n, k, and p forms in soils within three perennial colonies of black cormorant (phalacrocorax carbo sinensis) and grey heron (ardea cinerea) located in northern and eastern poland were investigated. soil samples were collected beneath the nests from the most representative for each colony plots. control samples were taken outside the colonies within sites adjacent to the nesting areas but not affected by bird excrement. from each genetic horizon (20 horizons) in soil ... | 2003 | 12738297 |
| pcbs, teqs and plasma retinol in grey heron (ardea cinerea) hatchlings from two rookeries in norway. | fish-eating birds are particularly subject to accumulation of persistent organic pollutants, and polychlorinated biphenyls (pcbs) have been shown to constitute a major hazard for this group of birds. grey heron (ardea cinerea) hatchlings from two rookeries were applied as sentinel species to study pcb burdens in coastal ecosystems in mid norway and north norway, and plasma retinol and dioxin-equivalencies (sigmateq) were applied to assess toxic effects of the pcb-burdens. the results show that g ... | 2001 | 11459154 |
| effects of bis(tributyltin)oxide on antipredator behavior in threespine stickleback gasterosteus aculeatus l. | antipredator behavior was used as a parameter to detect effects caused by exposure to the organotin compound bis(tributyltin)oxide (tbto). three groups of threespine sticklebacks (gasterosteus aculeatus l.) were exposed to 3, 9 and 27 ppb tbto, respectively. a fourth control group was given the same treatment as the other three groups, but no tbto. antipredator behavior of the fish was evoked using a dummy heron (ardea cinerea) bill. tbto exposure caused significant changes in the spatial positi ... | 2001 | 11459153 |
| the young's modulus of feather keratin | the flexural stiffness of the rachis varies along the length of a primary feather, between primaries and between species; the possible contribution of variations in the longitudinal young's modulus of feather keratin to this was assessed. tensile tests on compact keratin from eight species of birds belonging to different orders showed similar moduli (mean e=2.50 gpa) in all species apart from the grey heron (e=1.78 gpa). no significant differences were seen in the modulus of keratin from primari ... | 1995 | 9318836 |
| pcr for detection of clostridium botulinum type c in avian and environmental samples. | a pcr was developed and applied for the detection of clostridium botulinum type c in 18 avian and environmental samples collected during an outbreak of avian botulism, and the results were compared with those obtained by conventional methodologies based on the mouse bioassay. pcr and mouse bioassay results compared well (100%) after the enrichment of samples, but pcr results directly indicated the presence of this microorganism in six samples, while only one of these contained the type c botulin ... | 1996 | 8815101 |
| isolation and characterization of a hepatitis b virus endemic in herons. | a new hepadnavirus (designated heron hepatitis b virus [hhbv]) has been isolated; this virus is endemic in grey herons (ardea cinerea) in germany and closely related to duck hepatitis b virus (dhbv) by morphology of viral particles and size of the genome and of the major viral envelope and core proteins. despite its striking similarities to dhbv, hhbv cannot be transmitted to ducks by infection or by transfection with cloned viral dna. after the viral genome was cloned and sequenced, a comparati ... | 1988 | 3418788 |
| a note on eggshell porosity, nest humidity and the effects of dde in the grey heron (ardea cinerea). | water vapour conductance (gh2o) was determined for 25 grey heron ardea cinerea eggs in the laboratory, and in nests during natural incubation at two scottish colonies. the mean gh2o of eggs measured in the nest which successfully hatched was 9.0 mgh2o/mmhg/day and the mean water vapour pressure gradient between egg and nest (delta ph2o), measured using "calibrated" duck eggs, averaged at 31 mmhg (4.13 kpa). based on eggshell porosity results, from the eggs which hatched, such a gradient would re ... | 1986 | 2877800 |
| disseminated avian mycobacteriosis in a free-living grey heron (ardea cinerea). | wild birds share with humans the capacity for moving fast over large distances. during migratory movements, birds carry pathogens that can be transmitted between species. one of these concerning pathogens is mycobacterium spp. a necropsy was performed in a grey heron (ardea cinerea) that had been medically treated for a polyarthritic process. grossly, firm white-yellowish nodules of various size, resembling granulomas, were observed in right carpal joint, both patellar joints, neck musculature, ... | 2013 | 24283143 |
| the life cycle of pygidiopsis ardeae køie, 1990 (digenea, heterophyidae). | ocellate cercariae, consistent with the description of cercaria angularis honer, 1961, developing in rediae in hydrobia ulvae (pennant) and hydrobia ventrosa (montagu) (prosobranchia, hydrobiidae) from denmark, were shown to be larvae of pygidiopsis ardeae køie, 1990 (heterophyidae, pygidiopsinae). euryhaline fishes such as the sticklebacks gasterosteus aculeatus linnaeus and pungitius pungitius (linnaeus), and the common goby pomatoschistus microps (krøyer) are second intermediate hosts in dani ... | 1990 | 2380862 |
| characterization of infectious and defective cloned avian hepadnavirus genomes. | the infectivity in vivo, replication competence in vitro, and expression of viral genes of several molecularly cloned duck hepatitis b virus (dhbv) genomes were investigated. in addition, replication competence, core protein expression, and secretion of viral proteins were investigated for a grey heron hepatitis b virus genome. except two, all dhbv isolates tested induced a systemic infection in pekin ducks when injected as cloned viral dna into the liver. after transfection of chicken hepatoma ... | 1991 | 1926780 |
| [discovery of natural foci of newcastle disease virus in the ussr]. | in examination of colonial birds in the volga delta in the astrakhan region (188 bioassays from 229 birds) and in the komandorskie islands of the kamchatka region (244 bioassays from 208 birds) in 1974, 15 strains of newcastle disease virus (ndv) were isolated (8 strains from 7 birds and 7 strains from 12 birds, respectively). the strains were isolated from egretta alba and ardea cinerea, and phalacracorax carbo in the astrakhan region and from lunda cirrhata and uria aalge in the komandorskie i ... | 1977 | 906443 |
| [preliminary note on the circulation of some human respiratory viruses by wild birds]. | with a view to detecting infections and carriage of human respiratory viruses in wild birds, 349 serum samples collected from 21 bird species -- sedentary ones and birds with large or limited migration areas -- were investigated. the following antigens were used: influenza virus a/hong kong 1/68 (h3n2)), a2 england 42/73 (h3n2), a2 victoria 3/75 (h3n2), a/new jersey 8/76 (hswn1), b/hong kong 5/72; parainfluenza virus type i sendai and type ii, coronavirus oc/43. an elevated incidence of antibodi ... | 1978 | 228619 |
| habitat use by the grey heron (ardea cinerea) in eastern france. | we analyzed the spatial relationship between the location and the size of the 69 grey heron colonies existing in 1994 in refuge areas in eastern france after recolonisation following the decline of the species in the 19(th) century. we used five variables describing the hydrographical network, which are known to play a part in the location of the colonies in this area. the results showed that the distribution of the breeding colonies was not governed by the same elements of the hydrographical ne ... | 2007 | 17637443 |
| pcb levels and accumulation patterns in waterbird eggs and in their prey at lake kerkini, a north-eastern mediterranean wetland of international importance. | seven "target" pcb levels were determined and compared in waterbird eggs, in their prey, and in water at lake kerkini, northern greece, to investigate pcb bioaccumulation patterns and to define the best bioindicator of target pcbs for this area. pcbs were analysed from eggs of phalacrocorax carbo, podiceps cristatus, ardea cinerea, egretta garzetta, and nycticorax nycticorax and from prey types alburnus alburnus, rutilus rutilus, lepomis gibbosus. carassius auratus, and rana sp. pcbs analysed we ... | 2007 | 17549546 |
| assessment of dna damage in ardea cinerea and ciconia ciconia: a 5-year study in portuguese birds retrieved for rehabilitation. | over the past decades, the presence of micronucleated blood cells has been used to detect genotoxic effects of xenobiotics in fish, amphibians and birds. this study assessed the frequency of micronuclei (mn) and other nuclear abnormalities in erythrocytes of individuals of ardea cinerea and ciconia ciconia retrieved for rehabilitation in order to evaluate the influence of age, temporal and spatial factors on the occurrence of dna damage in portuguese wild birds. blood smears from 65 birds with d ... | 2017 | 27833047 |
| influence of landscape features on the location of grey heron ardea cinerea colonies in poland. | we analysed hydrographic and habitat factors influencing the location of 207 colonies of the grey heron ardea cinerea in poland. we compared areas of particular habitats in three buffers around colonies (0-1, 0-10, 0-20km) among eight regions differing in their proportions of studied habitats. we found the highest inter-region dissimilarities in areas covered by water bodies (all scales) and pastures (0-1km). we recognized some indicator habitats characteristic of the majority (water bodies, pas ... | 2017 | 27793483 |
| ddt exposure of frogs: a case study from limpopo province, south africa. | amphibians are globally under pressure with environmental contaminants contributing to this. despite caution aired more than 80 years ago of threats posed to amphibians by ddt spraying for disease vector control, no data have been published on concentrations or effects of ddt contamination in frogs from areas where ddt is actively sprayed to control the insect vectors of malaria. in this study, we sampled fat bodies of xenopus laevis and xenopus muelleri naturally occurring in an area where indo ... | 2016 | 27317939 |
| heavy metal concentrations in diet and livers of black-crowned night heron nycticorax nycticorax and grey heron ardea cinerea chicks from pyeongtaek, korea. | this study presents concentrations of iron, manganese, zinc, copper, lead and cadmium in diet and livers of black-crowned night heron nycticorax nycticorax and grey heron ardea cinerea chicks from pyeongtaek, gyeonggi-do, korea. heavy metal concentrations of heron chicks were not related to concentrations in the diet. copper concentrations were significantly greater in the diet of black-crowned night herons (geometric mean = 13.6 wet microg/g) than grey herons (7.45 wet microg/g), other metal co ... | 2007 | 17410427 |
| trace element residues in eggshells of grey heron (ardea cinerea) and black-crowned night heron (nycticorax nycticorax) from nallihan bird paradise, ankara-turkey. | concentrations of four trace elements (cd, ni, cu and pb) were determined in eggshells of grey heron (ardea cinerea) and black-crowned night herons (nycticorax nycticorax) from nallihan bird paradise, which is located in the northern part of sariyar dam reservoir, turkey. results indicated that, within the same area, these ardeid species differed in the levels of cd, cu and pb in their eggshells (generally grey heron > night heron), possibly because females may have foraged in different habitats ... | 2007 | 17364239 |
| evaluation of population-level ecological risks of dioxin-like polychlorinated biphenyl exposure to fish-eating birds in tokyo bay and its vicinity. | population-level assessments of the ecological risks of dioxin-like polychlorinated biphenyl (pcb) exposure to fish-eating birds in tokyo bay and its vicinity were performed to judge the need for risk management measures to protect aquatic wildlife from dioxin-like pcb contamination. egg mortality risk and changes in the population growth rate (lambda) in relation to the contamination levels of dioxin-like pcbs in eggs of gray heron (ardea cinerea), great cormorant (phalacrocorax carbo), osprey ... | 2007 | 17283596 |
| the component helminth community in six sympatric species of ardeidae. | we studied the helminth communities in 6 sympatric species of ardeidae (ixobrychus minutus (linnaeus, 1766), nycticorax nycticorax (linnaeus, 1758), bubulcus ibis (linnaeus, 1758), egretta garzetta (linnaeus, 1766), ardea cinerea (linnaeus, 1758), and ardea purpurea (linnaeus, 1766)) from "la albufera de valencia," spain. the survey revealed 13 species of helminth parasites: 5 digeneans, 2 cestodes, and 6 nematodes. the component helminth communities of the ardeidae examined are depauperate and ... | 2005 | 17089743 |
| the use of feathers to monitor heavy metal contamination in herons, korea. | this study measured concentrations of iron, manganese, zinc, copper, lead, and cadmium in environmental substrates (water and sediment) as well as in the diet and feathers of black-crowned night heron nycticorax nycticorax and grey heron ardea cinerea chicks from pyeongtaek heronry, gyeonggi-do, korea. zinc and cadmium concentrations in sediment were relatively high, but lead was low. in the diet, only copper concentrations were higher in black-crowned night herons than in grey herons. cadmium c ... | 2007 | 17657458 |
| heavy metal distribution in chicks of two heron species from korea. | this study presents concentrations of iron, manganese, zinc, copper, lead, and cadmium in tissues of black-crowned night heron (nycticorax nycticorax) (n = 8) and grey heron (ardea cinerea) (n = 9) chicks from pyeongtaek heronry, gyeonggi-do, korea, 2001. iron (respectively, 45.8 +/- 24.0 microg/wet g, 155 +/- 123 microg/wet g), zinc (38.3 +/- 5.34 microg/wet g, 50.9 +/- 14.0 microg/wet g), and copper (9.93 +/- 2.26 microg/wet g, 30.2 +/- 12.9 microg/wet g) concentrations in feathers, manganese ... | 2008 | 17957401 |
| effect of the environmental quality and food chain on trace element concentrations in heron and egret chicks at pyeongtaek colony, korea. | trace element concentrations in the diet can affect the levels in birds. heron and egret chicks have been recommended as useful biological indicators for monitoring trace element contamination in the aquatic ecosystem. iron, zinc, manganese, copper, lead and cadmium concentrations were measured in the livers and stomach contents of grey heron (ardea cinerea), intermediate egret (egretta intermedia), little egret (egretta garzetta) and black-crowned night heron (nycticorax nycticorax) chicks from ... | 2014 | 25103117 |
| focal bird species and risk assessment approach for nonagricultural grassland scenarios in central europe. | the european food safety authority (efsa) guideline on risk assessment identifies pesticide exposure scenarios for nontarget wildlife; however, this scheme is not applicable to nonagricultural grassland. for example, different habitats and human utilization on golf courses attract bird communities that differ from those found in agricultural fields with annual crop cycles. the present study determined focal bird species for amenity grasslands such as golf courses following the efsa guideline. ba ... | 2014 | 24889926 |
| predatory bird species show different patterns of hydroxylated polychlorinated biphenyls (ho-pcbs) and polychlorinated biphenyls (pcbs). | hydroxylated metabolites of polychlorinated biphenyls (ho-pcbs) have previously been associated with endocrine disrupting effects. since metabolic capacity may differ among species, we investigated the levels and profiles of ho-pcbs and pcbs in livers of four predatory bird species from belgium. maximum concentrations for sum ho-pcbs were found in the common buzzard (buteo buteo) up to 13 700 pg/g wet weight (ww). the most prominent ho-pcb congener in all bird species was 4-ho-cb 187 (up to 6420 ... | 2008 | 18522135 |
| the epidemiology of the highly pathogenic h5n1 avian influenza in mute swan (cygnus olor) and other anatidae in the dombes region (france), 2006. | in february 2006, a highly pathogenic avian influenza (hpai) h5n1 virus was isolated from common pochards (aythia ferina) in the dombes region of france, an important migrating and wintering waterfowl area. thereafter, hpai h5n1 virus was isolated from 39 swab pools collected from dead waterfowl found in the dombes, but only from three pooled samples collected outside of this area but located on the same migration flyway. a single turkey farm was infected in the dombes. the epizootic lasted 2 mo ... | 2008 | 18957637 |
| the fish fauna of anambra river basin, nigeria: species abundance and morphometry. | the fish yields of most nigeria inland waters are generally on the decline for causes that may range from inadequate management of the fisheries to degradation of the water bodies. sustainable exploitation requires knowledge of the ichthyofaunal composition in the water bodies. we did a survey of fish species in anambra river basin for 22 months. fish samples were collected using four different gears -hook and line of size 13, caste nets, gill nets, and cages of mesh sizes of 50 mm, 75 mm, and 1 ... | 2009 | 19637699 |
| the relationship between perfluorinated chemical levels in the feathers and livers of birds from different trophic levels. | although feathers have been used successfully for monitoring heavy metals and organic pollutants, there are currently no data available on the use of feathers as indicators of perfluorinated chemical (pfc) exposure in birds. also, no study has evaluated pfc levels in birds with different diets from different habitats. in the current study we investigated the pfc exposure of five different bird species from the same geographic region in belgium, using both feathers and liver tissue. the highest m ... | 2009 | 19716165 |
| first description of the adult stage of clinostomum cutaneum paperna, 1964 (digenea: clinostomidae) from grey herons ardea cinerea l. and a redescription of the metacercaria from the nile tilapia oreochromis niloticus niloticus (l.) in kenya. | the combined use of morphological and molecular studies allowed for the first time the recognition and description of the adult stage of clinostomum cutaneum paperna, 1964 from the grey heron ardea cinerea l. in kenya. a redescription of the metacercaria that infect nile tilapia oreochromis niloticus niloticus (l.) from the same aquatic environment is also presented. c. cutaneum differs from all other species of clinostomum leidy, 1856 in the shape of its uterus. sequencing the rrna confirmed th ... | 2010 | 20401577 |
| halogenated pollutants in terrestrial and aquatic bird eggs: converging patterns of pollutant profiles, and impacts and risks from high levels. | we investigated the presence, levels, relationships, and risks of hchs, ddts, chlordanes, mirex, pcbs, and brominated flame retardants (bfrs) in terrestrial and aquatic bird eggs from an area in south africa where ddt is used for malaria control. we found one of the highest σddt levels reported this century; 13,000 ng/g wm (wet mass) in grey heron eggs which exceeds critical levels for reproductive success (3000 ng/g wm) calculated for brown pelicans, with a no-effect level estimated at 500 ng/g ... | 2013 | 23850145 |
| characterization and evolution of mhc class ii b genes in ardeid birds. | major histocompatibility complex (mhc) is a multi-gene family that is very suitable to investigate a wide range of open questions in evolutionary ecology. in this study, we characterized two expressed mhc class ii b genes (dab1 and dab2) in the grey heron (aves: ardea cinerea). we further developed the primer pairs to amplify and sequence two mhc class ii b loci in ten ardeid birds. phylogenetic analysis revealed that different parts of the genes showed different evolutionary patterns. the exon ... | 2011 | 21590337 |
| 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 |
| occurrence of the subcutaneous mite, hypodectes propus (acarina: hypoderatidae), in the grey heron, ardea cinerea (aves: ciconiiformes) a new host record in japan. | an adult male grey heron, ardea cinerea (aves: ciconiiformes), was rescued in mikunigaoka 590-0021, sakai, osaka, japan, and euthanized because of severe injury to both legs. at necropsy, a large number of deutonymphs (hypopi) of the hypoderatid mite, hypodectes propus (acarina: hypoderatidae), were found in the subcutis and in the fasciae of the adipose tissue in the pectoral muscle and abdominal regions. the mites were 1.26 mm in length and 0.35 mm in width on average. the present hypopi were ... | 2012 | 23272371 |
| composition, structure and pattern of helminth assemblages associated with central european herons (ardeidae). | helminths parasitizing the ardeid birds are poorly understood, and the majority of studies are limited to checklists and records of novel host-parasite interactions. here we analyzed the prevalence, intensity and diversity of the helminth component communities associated with an extensive cohort of the five most common czech herons (ardea cinerea, ardea alba, nycticorax nycticorax, botaurus stellaris and ixobrychus minutus) collected in the years 1962-2013. comparison with ukrainian datasets sup ... | 2015 | 25449288 |
| trace element accumulations in 13 avian species collected from the kanto area, japan. | in the present study, concentrations of 13 elements (li, cr, mn, cu, zn, as, se, rb, sr, mo, ag, cd, hg) were measured in the tissues of the livers, the kidneys, pectoral muscles, lungs and brains of 13 avian species collected from the kanto area of japan. the difference in hepatic heavy metal levels of the grey herons from the two sites was compared. metal levels in the sediment of the tama river estuary, situated in the haneda area, were also measured. these results revealed that heavy metal p ... | 2007 | 17229456 |
| hepatitis virus infections in poultry. | viral hepatitis in poultry is a complex disease syndrome caused by several viruses belonging to different families including avian hepatitis e virus (hev), duck hepatitis b virus (dhbv), duck hepatitis a virus (dhav-1, -2, -3), duck hepatitis virus types 2 and 3, fowl adenoviruses (fadv), and turkey hepatitis virus (thv). while these hepatitis viruses share the same target organ, the liver, they each possess unique clinical and biological features. in this article, we aim to review the common an ... | 2016 | 27610716 |
| redescription of babesia ardeae toumanoff, 1940, a parasite of ardeidae, including molecular characterization. | among the actual 16 identified and thought to be valid avian piroplasm species, certain parasites are only known from their original description with no subsequent report. babesia ardeae toumanoff, 1940 is one of them. it was described from a single sacrificed gray heron (ardea cinerea) from vietnam and had never been reported since this date despite inhabiting a very common avian host. the present study reports the accidental rediscovery of b. ardeae from an injured wild gray heron rescued in s ... | 2017 | 28160075 |
| surface topography of two trematodes parasites infecting grey heron ardea cinerea jouyi (aves, ciconiiformes) in qena, egypt. | apharyngostrigea ardeolina and echinoparyphium recurvatum are two important digenean parasites that were recovered from small intestine of grey heron with an infection rate (16.2%) and (8.8%) respectively. the surface topography of two species was redescribed by both light and scanning electron microscopy. using sem studies showed that the body surface of two trematodes were covered by contact receptors, several types of sensory tegumental papillae which may have useful function in orientation a ... | 2015 | 26012229 |
| prevalence of mycoplasma gallisepticum and mycoplasma synoviae in commercial poultry, racing pigeons and wild birds in belgium. | mycoplasma gallisepticum is the most important pathogenic avian mycoplasma species and causes chronic respiratory disease in poultry. in addition, the prevalence of mycoplasma synoviae is of increasing concern in several eu member states. we investigated the prevalence of m. gallisepticum in commercial poultry (5220 layers, 1224 broilers and 1020 meat turkeys), 56 racing pigeons and 890 wild birds (order anseriformes, galliformes, pelecaniformes, accipitriformes, gruiformes, charadriiformes, col ... | 2016 | 26814376 |
| first survey of the occurrence of duck enteritis virus (dev) in free-ranging polish water birds. | duck plague (dp) caused by anatid herpesvirus 1, also called duck enteritis virus (dev), presents one of the most important concerns in mass waterfowl production. apart from geese and ducks, free-ranging water birds are the most notorious infection carriers. the epidemiology of dev in western europe remains unknown. therefore, it was reasonable to conduct a study on its occurrence using modern but simple real-time loop-mediated isothermal amplification (lamp). analysis of 132 field isolates show ... | 2014 | 24327092 |
| morphology and molecules reveal the alien posthodiplostomum centrarchi hoffman, 1958 as the third species of posthodiplostomum dubois, 1936 (digenea: diplostomidae) in europe. | metacercariae of two species of posthodiplostomum dubois, 1936 (digenea: diplostomidae) were subjected to morphological and molecular studies: p. brevicaudatum (von nordmann, 1832) from gasterosteus aculeatus (l.) (gasterosteiformes: gasterosteidae), bulgaria (morphology, cox1 and its1-5.8s-its2) and perca fluviatilis l. (perciformes: percidae), czech republic (morphology, cox1, its1-5.8s-its2 and 28s); and p. centrarchi hoffman, 1958 from lepomis gibbosus (l.) (perciformes: centrarchidae), bulg ... | 2017 | 28062983 |
| metal pollution in biotic and abiotic samples of the büyük menderes river, turkey. | the büyük menderes river (bmr) is one of the largest rivers in turkey. this river irrigates efficient farmlands and includes tributaries of other rivers and streams and many populated towns within its limits in the ege region. both the estuary and işıklı lake serve as a sanctuary for various waterbirds. therefore, the bmr plays a critical role both for the inhabitants and for the ecosystem organisms in its environs. in the present study, we analyzed levels of metals including iron, barium, zinc, ... | 2017 | 26971518 |
| anatomical study of the musculus deltoideus and musculus flexor carpi ulnaris in 3 species of wild birds. | given the limited information regarding the anatomy of the thoracic limb in european avian species, we decided to investigate the related muscles in the grey heron (ardea cinerea), in the eurasian buzzard (buteo buteo), and in the common kestrel (falco tinnunculus). therefore we performed a stratigraphic dissection of the wing in 3 subjects. the pars major and minor of the musculus deltoideus, despite being roughly in line with those reported by other authors in other species, displayed unique f ... | 2017 | 26681506 |
| maximum penalized likelihood estimation in semiparametric mark-recapture-recovery models. | we discuss the semiparametric modeling of mark-recapture-recovery data where the temporal and/or individual variation of model parameters is explained via covariates. typically, in such analyses a fixed (or mixed) effects parametric model is specified for the relationship between the model parameters and the covariates of interest. in this paper, we discuss the modeling of the relationship via the use of penalized splines, to allow for considerably more flexible functional forms. corresponding m ... | 2016 | 26289495 |
| tissue distribution of heavy metals in heron and egret chicks from pyeongtaek, korea. | iron, zinc, manganese, lead and cadmium were measured in the liver, kidney and bone of grey heron (ardea cinerea), intermediate egret (egretta intermedia), little egret (egretta garzetta) and black-crowned night herons (nycticorax nycticorax) from korea. iron, zinc, manganese, lead and cadmium concentrations had species- and tissue- specific accumulation. lead concentrations in all tissues of black-crowned night heron and cadmium in kidneys of intermediate egret chicks were relatively higher tha ... | 2015 | 25504523 |
| comparison of trace element concentrations in grey heron and black-crowned night heron chicks. | cadmium (cd), lead (pb), manganese (mn), zinc (zn), and iron (fe) concentrations were measured in the prey and liver of grey heron (ardea cinerea) and black-crowned night heron (nycticorax nycticorax) chicks (24-26 days after hatching) at the pyeongtaek colony, korea in 2001 (n = 10, respectively) and 2008 (n = 11 and n = 10). cadmium and pb concentrations in livers of grey heron (cd geomean 0.06, pb 3.90 μg/g dw) and black-crowned night heron (cd 0.20, pb 4.24 μg/g dw) chicks were increased wit ... | 2015 | 25410946 |
| concentrations of cd, pb, mn and zn in feathers and diet in heron chicks in korea. | the feathers and diet items of grey heron (ardea cinerea) and black-crowned night-heron (nycticorax nycticorax) chicks were collected at the pyeongtaek colony, korea in 2002 and 2008, and cd, pb, mn and zn concentrations were measured. cd and zn concentrations were higher in both species in 2008 than 2002 and were higher in grey herons than black-crowned night-herons in 2002. in 2008, cd concentrations were higher in black-crowned night-herons than grey herons; zn concentrations did not differ b ... | 2015 | 25398268 |
| environmental and biological monitoring of persistent organic pollutants in waterbirds by non-invasive versus invasive sampling. | three main groups of persistent organic pollutants (pops); namely organochlorine pesticides (ocps), polychlorinated biphenyls (pcbs) and polybrominated diphenylethers (pbdes) were quantified in water and sediment samples, as well as in various invasive and non-invasive samples from waterbirds in the büyük menderes river (bmr). liver and muscle tissues, blood, and preen gland oil samples of yellow-legged gull (larus michahellis) and euroasian coot (fulica atra) were collected both from the origin ... | 2014 | 24503014 |
| assessment of trace metals in four bird species from korea. | in birds, heavy metal concentrations are influenced by diet intake, migratory pattern, and residence time. in the present study, heavy metal concentrations (in microgram per gram dry weight) were measured in livers of four bird species from korea. iron concentrations were greater in eurasian woodcocks (scolopax rusticola) than in grey herons (ardea cinerea), little egrets (egretta garzetta), and schrenck's bitterns (ixobrychus eurhythmus). copper concentrations in grey herons were significantly ... | 2013 | 23430066 |
| 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 |
| size specific predation by herons and its effect on the sex-ratio of natural populations of the mosquito fish gambusia affinis baird and girard. | sex-ratios of gambusia affinis populations in freshwater marshes in the camargue (rhône delta), are highly biased in favour of males, whereas the sex-ratios in ditches are close to unity. studies of the diet of free living birds and experimental studies on prey size selection in captivity show that the abnormal sex-ratios in marshes can be attributed to differential heron predation. ditches are relatively free from predation. mature female gambusia are larger, and have an energy content 5-25 tim ... | 1982 | 28311103 |
| porrocaecum parvum n. sp. and p. reticulatum (linstow, 1899) (nematoda: ascaridoidea) from birds in china. | porrocaecum parvum n. sp. is described from the grey-faced buzzard butastur indicus (gmelin) (accipitriformes: accipitridae) in china. the new species differs from its congeners in having well-developed cervical alae, small interlabia and very short intestinal caecum (0.34 mm long, representing 11.9% of oesophageal length) and in the number and arrangement of the caudal papillae (29 pairs in total, arranged as follows: 21 pairs precloacal, single double pair paracloacal and seven pairs postcloac ... | 2015 | 26358073 |
| a conserved residue, tyrosine (y) 84, in h5n1 influenza a virus ns1 regulates ifn signaling responses to enhance viral infection. | the non-structural protein, ns1, is a virulence factor encoded by influenza a viruses (iavs). in this report, we provide evidence that the conserved residue, tyrosine (y) 84, in a conserved putative sh2-binding domain in a/duck/hubei/2004/l-1 [h5n1] ns1 is critical for limiting an interferon (ifn) response to infection. a phenylalanine (f) substitution of this y84 residue abolishes ns1-mediated downregulation of ifn-inducible stat phosphorylation, and surface ifnar1 expression. recombinant iav ( ... | 2017 | 28498306 |
| novel reassortant clade 2.3.4.4 avian influenza a (h5n8) virus in a grey heron in south korea in 2017. | we report the identification of a novel reassortant clade 2.3.4.4 h5n8 virus from a dead grey heron in korea in 2017. outbreaks of clade 2.3.4.4 h5 hpaivs have been reported worldwide, and they have evolved into multiple genotypes among wild birds. phylogenetic analysis indicated that this virus likely originated from qinghai lake and western siberia and further evolved through reassortment with eurasian lpai during the 2016 fall migration of wild birds. enhanced surveillance and comparative gen ... | 2017 | 28900762 |
| the heron that laid the golden egg: metals and metalloids in ibis, darter, cormorant, heron, and egret eggs from the vaal river catchment, south africa. | metal pollution issues are afforded the highest priority in developing countries. only one previous study has addressed metals in african bird eggs. we determined the concentration of metals and metalloids in bird eggs from four sites in the vaal river catchment (vrc) of south africa to provide data on the current situation. we analysed 16 pools of 77 heron, ibis, darter, egret, and cormorant eggs for 18 metals and metalloids using icp-ms. we found high concentrations of gold (au), uranium (u), ... | 2016 | 27230424 |
| lead and cadmium contaminations in feathers of heron and egret chicks. | in birds, concentrations of heavy metal contaminants were associated with their diet and environmental quality. this study presents concentrations of lead and cadmium in feathers and the relationship between concentrations in the feather and stomach content of three species of heron and egret chicks. cadmium concentrations were higher in the little egret (geomean 0.75 μg/g dry weight) and black-crowned night heron (geomean 0.88 μg/g dry weight) chicks than in grey heron chicks (geomean 0.48 μg/g ... | 2014 | 24407960 |
| antimicrobial resistant and extended-spectrum β-lactamase producing escherichia coli in common wild bird species in switzerland. | a total of 294 fecal swabs from 294 wild birds in switzerland were cultivated for antimicrobial resistant (amr) escherichia coli. samples were also subcultivated to detect e. coli with extended-spectrum β-lactamases (esbl), carbapenemases, and plasmid-mediated aminoglycoside or colistin resistance, respectively. samples from 17 (5.8%) of the birds contained 19 amr e. coli, whereof 26.3% were multidrug resistant. five (1.7%) esbl-producing e. coli were detected. the isolates harbored blactx-m-1 ( ... | 2019 | 31006991 |
| inter-species and inter-colony differences in elemental concentrations in eggshells of sympatrically nesting great cormorants phalacrocorax carbo and grey herons ardea cinerea. | we compared the concentrations of 17 heavy metals and essential elements in post-hatching eggshells of two waterbirds, the obligate piscivorous great cormorant phalacrocorax carbo (gcm) and the more omnivorous grey heron ardea cinerea (ghr), breeding sympatrically in eight mixed colonies in poland. we found significant inter-species and inter-colony differences in the levels of most of the elements. ghr had significantly higher concentrations of al, which can be explained by its very low stomach ... | 2019 | 30484052 |
| spatio-temporal variability of ichthyophagous bird assemblage around western mediterranean open-sea cage fish farms. | ichthyophagous birds aggregate at cage fish farms attracted by caged and associated wild fish. spatio-temporal variability of such birds was studied for a year through seasonal visual counts at eight farms in the western mediterranean. correlation with farm and location descriptors was assessed. considerable spatio-temporal variability in fish-eating bird density and assemblage structure was observed among farms and seasons. bird density increased from autumn to winter, with the great cormorant ... | 2018 | 29910028 |
| molecular characterization of babesia peircei and babesia ugwidiensis provides insight into the evolution and host specificity of avian piroplasmids. | there are 16 recognized species of avian-infecting babesia spp. (piroplasmida: babesiidae). while the classification of piroplasmids has been historically based on morphological differences, geographic isolation and presumed host and/or vector specificities, recent studies employing gene sequence analysis have provided insight into their phylogenetic relationships and host distribution and specificity. in this study, we analyzed the sequences of the 18s rrna gene and its-1 and its-2 regions of t ... | 2017 | 28913165 |
| the long term response of birds to climate change: new results from a cold stage avifauna in northern england. | the early mis 3 (55-40 kyr bp associated with middle palaeolithic archaeology) bird remains from pin hole, creswell crags, derbyshire, england are analysed in the context of the new dating of the site's stratigraphy. the analysis is restricted to the material from the early mis 3 level of the cave because the upper fauna is now known to include holocene material as well as that from the late glacial. the results of the analysis confirm the presence of the taxa, possibly unexpected for a late ple ... | 2015 | 25992609 |
| mercury distribution along the food chain of a wetland ecosystem at sanjiang plain, northeast china. | concentrations of total mercury (t-hg) and methylmercury (mehg) in a wetland food chain were determined at majuan island of the sanjiang plain in china. four tissues (muscle, liver, kidney and brain) of three waterbird species (great cormorant, grey heron and great egret), muscle tissues of fish (grass carp, crucian carp and longnose gudgeon), insects (predacious diving beetle), aquatic plants (ditch reed) and soil were analyzed. the mean concentrations of t-hg were 0.392 ± 0.237 mg/kg for tissu ... | 2017 | 27999881 |
| completion of the life cycle of tylodelphys mashonense (sudarikov, 1971) (digenea: diplostomidae) with dna barcodes and rdna sequences. | the life cycle of tylodelphys mashonense (digenea: diplostomidae), whose metacercariae occur in the cranial cavity of the widely cultivated catfish clarias gariepinus, was resolved by the application of molecular markers. both coi barcodes and its sequences obtained from diplostomid-like cercariae infecting bulinus spp. from mindu dam, morogoro, matched those acquired from metacercariae from the catfish c. gariepinus, and those from adult t. mashonense from the grey heron ardea cinerea and the w ... | 2015 | 26122993 |
| a new wirefruit of the gray heron (ardea cinerea l.) lemdana urbaini n. sp. | | 1949 | 15399455 |
| evidence of low-habitat contamination using feathers of three heron species as a biomonitor of inorganic elemental pollution. | the concentration of 12 elements (as, cd, co, cr, cu, fe, hg, mn, ni, pb, se, and zn) has been investigated in the feathers of three species of ardeidae, namely the grey heron ardea cinerea, the little egret egretta garzetta, and the cattle egret bubulcus ibis, all breeding at a colony located in the southern padana plain (nw italy). this study is a first step for an evaluation of possible direct effects of these elements on chicks' survival and growth rate. fe, zn, cu, and mn were in the range ... | 2020 | 33114248 |
| skull of the grey heron (ardea cinerea): detailed investigation of the orbital region. | the skull of the grey heron (ardea cinerea) was examined with an emphasis on describing the orbital region. in the young (circa sixteen to seventeen days old) heron, the frontal bone (os frontale) and nasal bone (os nasale) comprised separate paired bones, connected by sutures (sutura interfrontalis, sutura internasalis and sutura frontonasalis plana). in adult animals, the relationship between these bones was different: the left and right frontal bone and the left and right nasal bone had grown ... | 2017 | 28940616 |