[trematodes of birds from lower silesia. iii. urotocus rossitensis (mühling, 1898)--new for poland species of trematode parasitism in passeriform birds].during the studies on trematode fauna of birds from lower silesia, the rare species--urotocus rossitensis (mühling, 1898)--was found. it parasitized in the bursa fabricii of sylvia borin, erithacus rubecula and turdus philomelos, and in the cloaca of turdus merula. all these birds are new hosts for u. rossitensis which was recorded for the first time in poland. it is worth mentioning that the localization of this trematode in the cloaca of t. merula is nontypical, since the parasite has underdev ...19911844788
the ecology of whataroa virus, an alphavirus, in south westland, new zealand.the findings of a survey on the ecology of an alphavirus over the years 1964-9 are reviewed. evidence is presented to show that wild birds constitute a vertebrate reservoir of the virus and that mosquitoes, primarily culiseta tonnoiri and culex pervigilans, which are both endemic new zealand species, are responsible for summer transmission.serological evidence of infection was obtained in all years and evidence is presented to indicate that the virus is enzootic rather than being reintroduced ea ...19734149068
[bird trematodes of lower silesia. iv. specimens from the genus mosesia (pleurogenidae, trematoda)--new element of parasitic-fauna passeriform birds from lower silesia].illustrated descriptions of mosesia pavlovskii, m. sittae and m. microsoma have been presented. these species have been described for the first time in poland, and two of them--m. sittae and m. microsoma--have not been know in europe until now. motacilla flava, turdus philomelos and t. merula are new hosts of these trematodes. m. sittae has been recognized as an autochthonous species--completing its life cycle in the climatic conditions of lower silesia. as for the other two species, the author ...19938346659
an avian reservoir (turdus merula) of the lyme borreliosis spirochetes.the reservoir competence of passerine birds for the lyme borreliosis spirochetes was studied in an enzootic focus in switzerland. skin aspirates and skin biopsies were used to isolate borrelia spirochetes from turdus species. b. burgdorferi sensu lato was isolated and/or pcr-detected in bsk medium containing skin biopsy or skin aspirate from 5 blackbirds (t. merula) and one song thrush (t. philomelos). seven isolates were obtained from 3 different blackbirds. either b. garinii or borrelia from t ...19989638881
borrelia burgdorferi sensu lato infection in passerine birds from the mazurian lake region (northeastern poland).the aim of the present study was to evaluate a potential role of different passerine birds species in mazurian lake region (northeast poland) in the spread of borrelia burgdorferi sensu lato, the spirochaete that causes lyme disease. a total number of 1254 birds (representing 42 species) were captured during the 3-year study period. blood samples were collected from birds and analyzed with a nested polymerase chain reaction technique in order to detect fragments of the pathogen dna. positive res ...200414681070
no detection of avian influenza a viruses of the subtypes h5 and h7 and isolation of lentogenic avian paramyxovirus serotype 1 in passerine birds during stopover in the year 2001 on the island helgoland (north sea).a total of 543 migrating passerines were captured during their stopover on the island of helgoland (north sea) in spring and autumn 2001. they were sampled for the detection of avian influenza a viruses (aiv) subtypes h5 and h7, and for avian paramyxoviruses serotype 1 (apmv-1). the goal of the study was to examine the role of migrating birds as potential vectors for these zoonotic viral diseases. for virus detection samples were taken from a) short-distance migrants such as chaffinches (fringil ...200516425631
role of birds in thuringia, germany, in the natural cycle of borrelia burgdorferi sensu lato, the lyme disease spirochaete.three hundred and twenty-two birds belonging to 35 species were live-captured in reifenstein, middle germany, from march to october 2004, to investigate their role as hosts of borrelia burgdorferi sensu lato and its vector ticks. a total of 141 ixodes ricinus ticks collected from 53 birds belonging to eight species was investigated for the prevalence of b. burgdorferi by a pcr-rflp analysis of the ospa gene. three of these bird species, the blackbird (turdus merula), the song thrush (t. philomel ...200616530003
ticks (ixodidae) from passerine birds in the carpathian region.birds have been found to be a reservoir host of borrelia. in order to assess the situation in slovakia ticks were collected from a total of 3057 mist-netted, ringed and released passerine birds in two locations at 500 m (in 2001) and 1000 m (in 2003) above sea level in the bukovské vrchy hills, part of the carpathian region in the north-east of slovakia. a total of 75 birds of 16 species were infested with subadult ticks of ixodes ricinus species (prevalence of parasitization 5%). sixty-two larv ...200617186172
blackbirds and song thrushes constitute a key reservoir of borrelia garinii, the causative agent of borreliosis in central europe.blackbirds (turdus merula) and song thrushes (turdus philomelos) were found to carry 95% of all spirochete-infected tick larvae among 40 bird species captured in central europe. more than 90% of the infections were typed as borrelia garinii and borrelia valaisiana. we conclude that thrushes are key players in the maintenance of these spirochete species in this region of central europe.200818156328
differential role of passerine birds in distribution of borrelia spirochetes, based on data from ticks collected from birds during the postbreeding migration period in central europe.borrelia spirochetes in bird-feeding ticks were studied in the czech republic. during the postbreeding period (july to september 2005), 1,080 passerine birds infested by 2,240 ixodes ricinus subadult ticks were examined. borrelia garinii was detected in 22.2% of the ticks, borrelia valaisiana was detected in 12.8% of the ticks, borrelia afzelii was detected in 1.6% of the ticks, and borrelia burgdorferi sensu stricto was detected in 0.3% of the ticks. after analysis of infections in which the bl ...200919060160
insect ectoparasites from wild passerine birds in the czech republic.wild passerine birds (passeriformes) from northeastern part of the czech republic were examined for ectoparasites. three species of louse-flies of the genus ornithomya (diptera: hippoboscidae), two species of fleas of the genera ceratophyllus and dasypsyllus (siphonaptera: ceratophyllidae), and 15 species of chewing lice belonging to the genera myrsidea, menacanthus (phthiraptera: menoponidae), brueelia, penenirmus, philopterus (phthiraptera: philopteridae) were found on 82 birds of 23 species. ...200819202768
polymerase chain reaction-restriction fragment length polymorphism authentication of raw meats from game birds.polymerase chain reaction-restriction fragment length polymorphism (pcr-rflp) analysis has been applied to the identification of meats from quail (coturnix coturnix), pheasant (phasianus colchicus), red-legged partridge (alectoris rufa), guinea fowl (numida meleagris), capercaillie (tetrao urogallus), eurasian woodcock (scolopax rusticola), woodpigeon (columba palumbus), and song thrush (turdus philomelos). pcr amplification was performed using a set of primers flanking a conserved region of app ...200819202803
campylobacter jejuni colonization in wild birds: results from an infection experiment.campylobacter jejuni is a common cause of bacterial gastroenteritis in most parts of the world. the bacterium has a broad host range and has been isolated from many animals and environments. to investigate shedding patterns and putative effects on an avian host, we developed a colonization model in which a wild bird species, the european robin erithacus rubecula, was inoculated orally with c. jejuni from either a human patient or from another wild bird species, the song thrush turdus philomelos. ...201020140204
novel taqman real-time polymerase chain reaction assay for verifying the authenticity of meat and commercial meat products from game birds.species-specific real-time polymerase chain reaction (pcr) assays using taqman probes have been developed for verifying the labeling of meat and commercial meat products from game birds, including quail, pheasant, partridge, guinea fowl, pigeon, eurasian woodcock and song thrush. the method combines the use of species-specific primers and taqman probes that amplify small fragments (amplicons <150 base pairs) of the mitochondrial 12s rrna gene, and an endogenous control primer pair that amplifies ...201020169483
polymerase chain reaction assay for verifying the labeling of meat and commercial meat products from game birds targeting specific sequences from the mitochondrial d-loop region.a pcr assay was developed for the identification of meats and commercial meat products from quail (coturnix coturnix), pheasant (phasianus colchicus), partridge (alectoris spp.), guinea fowl (numida meleagris), pigeon (columba spp.), eurasian woodcock (scolopax rusticola), and song thrush (turdus philomelos) based on oligonucleotide primers targeting specific sequences from the mitochondrial d-loop region. the primers designed generated specific fragments of 96, 100, 104, 106, 147, 127, and 154 ...201020371856
detection of babesia sp. eu1 and members of spotted fever group rickettsiae in ticks collected from migratory birds at curonian spit, north-western reveal the prevalence of spotted fever group (sfg) rickettsiae and babesia sp. in ixodes ricinus (l.) ticks from migratory birds, 236 specimens represented 8 species of passeriformes and were collected at curonian spit in kaliningrad enclave of north-western russia. the ticks (total 126) being detached from four bird species, turdus philomelos, fringilla coelebs, parus major, and sturnus vulgaris, were investigated by pcr using the primers rp cs.877p/rp cs.1258n for the detection of rickettsi ...201120553110
synanthropic birds influence the distribution of borrelia species: analysis of ixodes ricinus ticks feeding on passerine birds.ixodes ricinus ticks collected from 835 birds and from vegetation in the czech republic were analyzed. host-seeking ticks (n = 427) were infected predominantly by borrelia afzelii (25%). ticks (n = 1,012) from songbirds (passeriformes) were infected commonly by borrelia garinii (12.1%) and borrelia valaisiana (13.4%). juveniles of synanthropic birds, eurasian blackbirds (turdus merula) and song thrushes (turdus philomelos), were major reservoir hosts of b. garinii.201021148704
tick infestation in birds and prevalence of pathogens in ticks collected from different places in germany.the importance of ticks and tick-borne pathogens for human and animal health has been increasing over the past decades. for their transportation and dissemination, birds may play a more important role than wingless hosts. in this study, tick infestation of birds in germany was examined. eight hundred ninety-two captured birds were infested with ticks and belonged to 48 different species, of which blackbirds (turdus merula) and song thrushes (turdus philomelos) were most strongly infested. ground ...201627048511
temporal variation in sindbis virus antibody prevalence in bird hosts in an endemic area in sweden.sindbis virus (sinv) is a mosquito-borne bird virus that occasionally causes human disease in fennoscandia, suggested to have cyclic 7-year intervals between outbreaks. reliable data on human infections in sweden is however lacking. here we investigated the sinv antibody prevalence among birds in a swedish area endemic to sinv to scrutinize if a cyclic variation in antibody prevalence is present in the natural host of sinv. serum from birds were sampled in the summers of 2002-2004 and 2009 in th ...201627579607
the complete sequence of a west nile virus lineage 2 strain detected in a hyalomma marginatum marginatum tick collected from a song thrush (turdus philomelos) in eastern romania in 2013 revealed closest genetic relationship to strain volgograd this study the first complete sequence of the west nile virus (wnv) lineage 2 strain currently circulating in romania was determined. the virus was detected in a hyalomma marginatum marginatum tick collected from a juvenile song thrush (turdus philomelos) in the romanian danube delta close to the city of tulcea, end of august 2013. our finding emphasizes the role of ticks in introduction and maintenance of wnv infections. sequence analyses revealed close genetic relationship of the romanian w ...201425279973
patterns of tick infestation and their borrelia burgdorferi s.l. infection in wild birds in portugal.wild birds may act as reservoirs for zoonotic pathogens and may be mechanical carriers of pathogen infected vector ticks through long distances during migration. the aim of this study was to assess tick infestation patterns in birds in portugal and the prevalence of tick infection by borrelia burgdorferi s.l. using pcr techniques. seven tick species were collected from birds including haemaphysalis punctata, hyalomma spp., ixodes acuminatus, ixodes arboricola, ixodes frontalis, ixodes ricinus an ...201526159798
characterization through multilocus sequence analysis of borrelia turdi isolates from portugal.borrelia turdi is a spirochete from the borrelia burgdorferi complex, first reported in japan, that has been increasingly detected in europe. this genospecies is mostly associated with avian hosts and their ornithophilic ticks such as ixodes frontalis. in this study, we isolated b. turdi from five i. frontalis feeding on turdus merula, turdus philomelos, parus major and troglodytes troglodytes, and one ixodes ricinus feeding on a t. merula in portugal. these isolates were genetically characteris ...201626311126
which forest bird species are the main hosts of the tick, ixodes ricinus, the vector of borrelia burgdorferi sensu lato, during the breeding season?wild birds are important hosts for vector-borne pathogens, especially those borne by ticks. however, few studies have been conducted on the role of different bird species within a community as hosts of vector-borne pathogens. this study addressed individual and species factors that could explain the burden of ixodes ricinus on forest birds during the reproductive periods of both vectors and hosts. the goal was to identify which bird species contribute the most to the tick population at the commu ...201222732161
evidence of genotypes 1 and 3 of avian hepatitis e virus in wild birds.although the presence of four genotypes of avian hepatitis e virus (hev) in chickens has been demonstrated, its natural host range is still barely known. in this study, swab samples from 626 wild birds originating from 62 bird species were investigated for hev detection by molecular methods. the aim was to explore the cross-species infection of avian hev and to compare the genetic diversity between strains infecting chicken and wild birds. in total, 8 positive samples from 4 different bird speci ...201727890632
septicemic salmonellosis caused by salmonella hessarek in wintering and migrating song thrushes (turdus philomelos) in spain.we investigated two mortality events in wintering and migrating song thrushes (turdus philomelos) in catalonia, northeastern spain in 2009 and 2010. both episodes occurred in late february to mid-march during the spring migration. salmonellosis produced by the serotype salmonella enterica subsp. enterica serotype hessarek (s. hessarek) was identified as the cause of death in both episodes. poor body condition, marked splenomegaly, and microscopic disseminated intravascular coagulation with numer ...201222247379
the seroprevalence of avipoxvirus and its association with avian malaria (plasmodium spp.) infection in introduced passerine birds in the southern regions of the north island of new zealand.blood samples were collected from 65 free-ranging birds from six species in the southern north island of new zealand. sera from the birds were tested for the presence of avipoxvirus (apv) antibodies by enzyme-linked immunosorbent assay (elisa), and blood cells from 55 birds were also tested for plasmodium spp. by pcr. forty-five birds (69.2%) tested seropositive to apv. song thrushes (turdus philomelos) presented the highest seroprevalence at 100% (4/4), followed by eurasian blackbirds (turdus m ...201323678738
test of magnetic sensitivity in seven species of european birds using a cardiac nociceptive conditioning attempt was made to show magnetic sensitivity in seven species of european birds captured during their migration. the test was done on the following species: streptopelia turtur (n=8), streptopelia decaocto (n=2), corvus monedula (n=6); one individual of the following: corvus corone c., turdus philomelos, turdus viscivorus, anas penelope. most of the individuals were first subjected to conditioning to a light stimulus. they were then subjected to differential nociceptive conditioning to 100 p ...197724896432
usutu virus in migratory song thrushes, spain. 023764143
investigations on infection status with h5 and h7 avian influenza virus in short-distance and long-distance migrant birds in 2001.the role of migrating birds as potential vectors for avian influenza virus (aiv) was investigated. we captured 543 migrating passerines during their stopover on the island of helgoland (north sea) in spring and autumn 2001. these birds were sampled for avian influenza a viruses (aiv), specifically the subtypes h5 and h7. for virus detection, samples were taken from 1) short-distance migrants, such as chaffinches (fringilla coelebs; n = 131) and song thrushes (turdus philomelos; n = 169); and 2) ...200717494601
where in europe should we look for sources of the cutaneous trematode collyriclum faba infections in migrating birds?cutaneous cysts with trematodes of collyriclum faba have been found in birds during their spring and post-breeding migrations in the czech republic. during spring migrations, c. faba was found in one dunnock prunella modularis, two european robins erithacus rubecula, three common nightingales luscinia megarhynchos, one song thrush turdus philomelos and one great reed warbler acrocephalus arundinaceus. during post-breeding migration, the same parasite was found in one garden warbler sylvia borin, ...200617125543
[nematoda of blackbird (turdus merula l.) and mavis (turdus philomelos br.) from the wroclaw region. i. faunistic studies]. 1979524890
[nematoda of blackbird (turdus merula l.) and mavis (turdus philomelos br.) from the wroclaw district. ii. ecological study]. 1979516737
predator-prey relationships in a changing environment: the case of the sparrowhawk and its avian prey community in a rural area.1. changes in community composition are expected to entail cascading effects at different trophic levels within a food web. however, empirical evidence on the impact of changes in prey communities on the population dynamics of generalist predators, and on the extent of possible feedback processes, remains scarce. 2. we analysed the dynamics of a generalist predator, the european sparrowhawk accipiter nisus l., in a rural area of northern denmark. over a 20-year period, the diet of the predator h ...200919558613
the potential of isolation source to predict colonization in avian hosts: a case study in campylobacter jejuni strains from three bird species.campylobacter jejuni is the primary cause of bacterial gastroenteritis worldwide, infecting humans mostly through consumption of contaminated poultry. c. jejuni is common in the gut of wild birds, and shows distinct strain-specific association to particular bird species. this contrasts with farm animals, in which several genotypes co-exist. it is unclear if the barriers restricting transmission between host species of such specialist strains are related to environmental factors such as contact b ...201829651281
sindbis virus infection in resident birds, migratory birds, and humans, finland.sindbis virus (sinv), a mosquito-borne virus that causes rash and arthritis, has been causing outbreaks in humans every seventh year in northern europe. to gain a better understanding of sinv epidemiology in finland, we searched for sinv antibodies in 621 resident grouse, whose population declines have coincided with human sinv outbreaks, and in 836 migratory birds. we used hemagglutination-inhibition and neutralization tests for the bird samples and enzyme immunoassays and hemagglutination-inhi ...200818258075
lens fiber organization in four avian species: a scanning electron microscopic study.the three-dimensional organization of the eye lenses of the chicken, the canary, the song-thrush and the kestrel was studied using light and scanning electron microscopy. the lenses of birds are characterized by the presence of two distinct compartments: the annular pad and the main lens body, separated by a cavum lenticuli. the annular pad fibers had a hexagonal circumference all contained a round nucleus and except for the canary were smooth-surfaced and lacking anchoring devices. in the canar ...19854012767
structural and proteomic analyses of vitelline membrane proteins of blackbird (turdus merula) and song thrush (turdus philomelos).in this study, we aimed to perform structural and proteomic analysis of the vitelline membrane (vm) of two species birds belonging to the family turdidae: blackbird (turdus merula) and song thrush (turdus philomelos). we performed structural analyses using scanning electron microscopy. the vm proteins were identified and compared to the best-known chicken vm proteins. according to our results, vm of both species has a typical three-layered structure: the outer layer, inner layer, and the continu ...202033168893
the modelling of avian visual perception predicts behavioural rejection responses to foreign egg do birds tell the colours of their own and foreign eggs apart? we demonstrate that perceptual modelling of avian visual discrimination can predict behavioural rejection responses to foreign eggs in the nest of wild birds. we use a photoreceptor noise-limited colour opponent model of visual perception to evaluate its accuracy as a predictor of behavioural rates of experimental egg discrimination in the song thrush turdus philomelos. the visual modelling of experimental and natural eggshell co ...200818593669
not all songbirds calibrate their magnetic compass from twilight cues: a telemetry study.migratory birds are able to use the sun and associated polarised light patterns, stellar cues and the geomagnetic field for orientation. no general agreement has been reached regarding the hierarchy of orientation cues. recent data from naturally migrating north american catharus thrushes suggests that they calibrate geomagnetic information daily from twilight cues. similar results have been shown in caged birds in a few studies but not confirmed in others. we report that free-flying european mi ...201121753048
molecular characterization of vana-containing enterococcus from migratory birds: song thrush (turdus philomelos).vancomycin-resistant enterococci (vre) were detected in two faecal samples (1.3%) of song thrush in portugal. vana isolates showed high level vancomycin/teicoplanin resistance, as well as resistance to ciprofloxacin, quinupristin-dalfopristin and cloranfenicol. thrush can be a reservoir of vre and transmit these resistant bacteria to other animals including humans.201224031923
haemoproteus minutus is highly virulent for australasian and south american parrots.haemoproteus and plasmodium species are widespread avian blood parasites. several plasmodium species are known for their high virulence and have caused significant declines in naïve bird populations. the impact of closely related haemoproteus parasites is largely unknown. recently we reported a lethal disease in two parrot aviaries caused by haemoproteus parasites.201930654841
different competence as a lyme borreliosis causative agent reservoir found in two thrush species: the blackbird (turdus merula) and the song thrush (turdus philomelos).passerine birds are significantly involved in the dissemination of borreliella spp. bacteria (formerly borrelia burgdorferi sensu lato complex), the causative agent of most common and important tick-spread disease lyme borreliosis. among several dozen investigated passerine bird species, thrushes (turdidae) have been reported as a relatively good pathogen reservoirs and disseminators. the principal aim of the study was to identify the differences in borreliella spp. reservoir competence between ...201930615582
absence of extended-spectrum-beta-lactamase-producing escherichia coli isolates in migratory birds: song thrush (turdus philomelos). 201020392707
[turdus merula l. as a proper host of capillaria ovopunctata (nematoda, capillariidae)].biometrical analysis of four morphometric characters of male and female specimens of capillaria ovopunctata parasitizing in sturnus vulgaris, erithacus rubecula, turdus philomelos and turdus merula, i.e. length of body, oesophagus, number of stichocytes or length of spicula and vulvar appendage respectively was carried out. it has been proved, that characters of females c. ovopunctata parasitizing in t. merula significantly differ from those of the nematodes found in other hosts. the present and ...19911822042
the influence of wind conditions in europe on the advance in timing of the spring migration of the song thrush (turdus philomelos) in the south-east baltic region.some of the factors that could influence changes in phenology of the song thrush (turdus philomelos) during spring migration have been analyzed in relation to the timing of their return to the south-east baltic region over the last 40 years. these include wind direction and velocity, temperature and precipitation in the wintering areas and along the migratory route. in march, a significant correlation was found between the timing of passage in the baltic region and both the air temperatures in w ...200717262220
central european parasitic flatworms of the cyclocoelidae stossich, 1902 (trematoda: plagiorchiida): molecular and comparative morphological analysis suggests the reclassification of cyclocoelum obscurum (leidy, 1887) into the harrahium witenberg, 1926.cyclocoelidae stossich, 1902 are medium-sized to large digenean bird parasites. although these parasites bear few visible autapomorphic signs, and their diagnostic characters are unstable in response to the pressure applied during preparation, the numerous hitherto suggested re-classifications within the family have not been supported by any molecular analysis. we analyse here cyclocoelids found during the extensive examination of central european birds performed from 1962 to 2016, provide compa ...201727831461
keypeck conditioning with reinforcements in two different locations in thrush, tit and sparrow species.twenty-one individuals each of the species great tits (parus major), blue tits (parus caeruleus), marsh tits (parus palustris), blackbirds (turdus merula), songthrushes (turdus philomelos), tree sparrows (passer montanus) and house sparrows (passer domesticus) were conditioned to a keypeck response by means of food reinforcement. the site where the reward was given was then changed. the number of reinforcements were then counted until the keypeck response followed immediately (within 10 seconds) ...198524896449
local extinctions and recolonisations of passerine bird populations in small woods.this paper considers, for eight species of woodland bird, the factors that influenced both local extinctions and recolonisations in 145 woods over 3 years. in all species, probability of local extinction was inversely related to population size; most local extinctions occurred in woods containing one to three breeding pairs. however, considerable variation in extinction probabilities occurred between species and between years. in addition, the suitability of habitat within a wood (more extinctio ...199628307734
deadly outbreak of iron storage disease (isd) in italian birds of the family turdidae.a widespread deadly outbreak occurred in captive birds belonging to the family turdidae in italy. the present study was performed on 46 dead birds coming from 3 small decoy-bird breeders in central italy. only turdus pilaris, turdus iliacus, turdus philomelos and turdus merula were affected. no other species of bird held by these breeders died. a change of diet before the hunting season was reported from all breeders. full necropsy of the animals and histological investigations of representative ...201424920545
museum egg collections as stores of long-term phenological collections hold large amounts of data on collecting dates and localities of eggs collected over the past 150 years. egg collections hold the longest available time series for a wide range of bird species on a large spatial scale. using data for two british species i investigate whether egg collection data can be used in phenological research. a method is presented allowing laying dates to be estimated from collecting dates. problems and biases in the data are highlighted. both the dipper ...200111769322
effects of food shortage and oversupply on energy utilization, histology, and function of the gut in nestling song thrushes (turdus philomelos).we measured food intake, digestive efficiency, body mass increments, resting metabolic rate (rmr), carcass fat content, size and histological structure of the gut, and the rate of intestinal brush border uptake of l-proline in song thrush (turdus philomelos) nestlings subjected to food shortage or food surplus under laboratory conditions. we assigned nestlings between 3 and 7 d of age to one of the following treatments: (1) food restriction, which resulted in a slowed growth at the rate found in ...200611009395
radioactivity measurements on migrating birds (turdus philomelos) captured in the comunidad valenciana (spain).the radionuclides 137cs, 134cs and 90sr have been measured in edible tissues and bones of migratory birds (song-thrushes, turdus philomelos) from central and northern europe and captured in the comunidad valenciana, spain in the 1994 autumn-winter season. eight years after the chernobyl accident, extensive agricultural lands in europe are still contaminated and this study shows that there was a transfer of radioactive isotopes to the captured migratory song-thrushes. the whole-body dose commitme ...19989514036
radiocesium concentration in migratory birds wintering in spain after the chernobyl accident.levels of 137cs and 134cs resulting from the chernobyl nuclear accident were studied in 195 birds that winter in two regions of spain. only five of the 12 species examined were contaminated. the average values for 137cs vary between 1.6 and 41 bq kg-1 fresh. in particular, the contamination for song-thrushes (turdus philomelos) are compared between the regions of extremadura and valencia, 350 km east of extremadura at the same latitude. the results show that the contamination of birds wintering ...19883198396
now you see it, now you don't: flushing hosts prior to experimentation can predict their responses to brood parasitism.brood parasitic birds lay their eggs in other birds' nests, leaving hosts to raise their offspring. to understand parasite-host coevolutionary arms races, many studies have examined host responses to experimentally introduced eggs. however, attending parents often need to be flushed from their nests to add experimental eggs. if these birds witness parasitism events, they may recognize and reject foreign eggs more readily than parents who did not. we found that, after being flushed, female blackb ...201525762433
eggshell colour does not predict measures of maternal investment in eggs of turdus thrushes.the striking diversity of avian eggshell colour has long fascinated biologists. recently, it has been proposed that the blue-green colour of some eggs may function as a post-mating sexually selected signal of female phenotypic quality to their mates to induce higher allocation of paternal care. it has been suggested that maternally deposited yolk carotenoids may be the specific aspect of reproductive quality that the female is signalling via eggshell colour. we use the known properties of the th ...200818401571
molecular characterization and distribution of haemoproteus minutus (haemosporida, haemoproteidae): a pathogenic avian parasite.recently, the lineage hturdus2 of haemoproteus minutus (haemosporida, haemoproteidae) was reported to cause mortality in captive parrots. this parasite lineage is widespread and prevalent in the blackbird turdus merula throughout its entire distribution range. species identity of other closely related lineages recently reported in dead parrots remains unclear, but will be important to determine for a better understanding of the epidemiology of haemoproteosis. using polymerase chain reaction (pcr ...201323557683
egg arrangement in avian clutches covaries with the rejection of foreign birds, the colour, maculation, shape, and size of their eggs play critical roles in discrimination of foreign eggs in the clutch. so far, however, no study has examined the role of egg arrangement within a clutch on host rejection responses. we predicted that individual females which maintain consistent egg arrangements within their clutch would be better able to detect and reject foreign eggs than females without a consistent egg arrangement (i.e. whose eggs change positions more often acros ...201323443406
anaplasmataceae closely related to ehrlichia chaffeensis and neorickettsia helminthoeca from birds in central europe, hungary.increasing amount of data attest that (in the context of vector-borne infections) birds are not only important as hosts of blood-sucking arthropod vectors, but also as reservoirs of vector-borne pathogens. from 2015 to 2019 cadavers of 100 birds (from 45 species, nine orders) were collected in hungary, and their organs were screened for dna from a broad range of vector-borne bacteria with pcr and sequencing. molecular analyses revealed the presence of anaplasmataceae, and sequencing identified b ...202032318980
haemosporidioses in wild eurasian blackbirds (turdus merula) and song thrushes (t. philomelos): an in situ hybridization study with emphasis on exo-erythrocytic parasite burden.passerine birds are frequently infected with diverse haemosporidian parasites. while infections are traditionally considered benign in wild birds, recent studies demonstrated mortalities of passerine species due to exo-erythrocytic development of the parasites, which can damage organs in affected hosts. however, exo-erythrocytic development remains insufficiently investigated for most haemosporidian species and thus little is known about the virulence of tissue stages in wild passerine birds. th ...202032050970
infrared thermography provides insight into the thermal properties of bird nests.thermal properties of nests have been investigated using a variety of techniques. infrared (ir) thermography has the advantage of being a non-invasive technique allowing the integrity of the nest wall to be retained during measurement. this study investigated the insulative properties of nests of the eurasian bullfinch (pyrrhula pyrrhula), the common blackbird (turdus merula) and the song thrush (turdus philomelos) using ir thermography. nests were inverted over a heat source and the temperature ...201830143304
effects of introducing threatened falcons into vineyards on abundance of passeriformes and bird damage to grapes.agricultural landscapes are becoming an important focus of animal conservation, although initiatives to conserve predators to date have rarely provided economic benefits to agricultural producers. we examined whether introduction to vineyards of the new zealand falcon (falco novaeseelandiae), a species listed as threatened by the new zealand department of conservation, affected the abundance of 4 species of passeriformes that are considered vineyard pests or affected the amount of economic loss ...201222010952
a host-race difference in begging calls of nestling cuckoos cuculus canorus develops through experience and increases host provisioning.the structure of common cuckoo nestling begging calls differs between the two host-races parasitizing reed warblers (reed warbler-cuckoos) and dunnocks (dunnock-cuckoos; longer syllable duration, lower peak and maximum frequency, narrower bandwidth). cross-fostering experiments demonstrated that this difference is not genetically fixed but develops through experience. when newly hatched reed warbler-cuckoos were transferred to dunnock nests, they developed begging calls more like those of dunnoc ...200616928637
presence and diversity of mixed avian plasmodium spp. infections in introduced birds whose distribution overlapped with threatened new zealand endemic birds.aims: to determine the presence of infection and co-infection of plasmodium lineages in introduced birds at translocation sites for the north island saddleback (philesturnus rufusater), to investigate their role as plasmodium spp. reservoirs.methods: blood samples were collected from introduced bird species, with a special focus on blackbirds (turdus merula) and song thrushes (turdus philomelos), at six locations in the north island of new zealand that were the origin, or translocation sites, fo ...202031645214
trace element concentrations in migratory game bird meat: contribution to reference intakes through a probabilistic assessment.the aim of this study was to determine co, cr, cu, fe, and zn content in migratory game bird meat and its contribution to dri through a probabilistic assessment. a total of 89 wild birds of three species, woodpigeon (columba palumbus) (n = 25), common turtledove (streptopelia turtur) (n = 19), and thrush (turdus philomelos) (n = 45), were analyzed. concentrations ranged between the following values: fe: 35.6-39.6 mg/kg ww; cu: 2.3-4.0 mg/kg ww; zn: 11.0-18.6 mg/kg ww; and cr: 43-51 μg/kg ww. co ...202031873918
first serological evidence of west nile virus infection in wild birds in northern algeria.while the epidemiology of flaviviruses has been extensively studied in most of the mediterranean basin, little is known about the current situation in algeria. in order to detect the circulation of west nile (wnv) and usutu viruses (usuv) in kabylia, 165 sera were collected from two wild birds species, namely the long distance migrant turdus philomelos (song thrush) (n = 92) and the resident passer domesticus (house sparrow) (n = 73). a total of 154 sera were first analyzed by commercial competi ...202031945717
parasites in space and time: a case study of haemosporidian spatiotemporal prevalence in urban birds.prevalence responses to anthropic factors differ across hosts and parasite species. we here analyzed the spatiotemporal variation of avian haemosporidian prevalence in bird assemblages of the mooswald forest (i.e., urban greenspace; freiburg, germany), in response to local environmental features (e.g., water sources, human presence (visited)/absence (unvisited)) and bird-level traits (e.g., body condition, age, sex) in 2 years. we used a nested pcr protocol (mitochondrial (mt)dna cytochrome b (c ...201930673588
ticks (acari: ixodida) on birds (aves) migrating through the polish baltic coast.seasonal bird (aves) migration between breeding and wintering areas, often located on different continents, can facilitate the spreading of tick species (acari: ixodida) and of tick-borne pathogens. the aim of the study was to analyse the occurrence of ticks dispersed by birds migrating along the polish baltic coast during spring and autumn migration. field research was conducted at the bird ringing station in wicie, located on the middle of the polish baltic coast, in 2011 and 2012 during sprin ...201930771037
meat quality and lipid fatty acid profile from wild thrush (turdus philomelos), woodcock (scolopax rusticola) and starling (sturnus vulgaris): a preliminary comparative study.the present study aimed to evaluate the nutritional proximate composition, some qualitative traits and fatty acid profile of meat from wild thrush, woodcock and starling hunted in southern italy in 2017 and 2018.202032487110
emerging helminthiases of song thrush (turdus philomelos) in central europe.turdus philomelos is a common western palearctic thrush species of forests and agricultural landscapes, where it relies on the presence of hedgerows, patches of trees, and shrubs. in the present study, we address long-term changes in component communities of trematodes in t. philomelos across the timespan of over half a century. based on our preliminary observations, we hypothesized that component communities of trematodes in t. philomelos in the study area are more diverse and species-rich comp ...202033029718
parasitofauna survey of song thrushes (turdus philomelos) from the eastern part of spain.thrushes (turdus spp.) are migratory passerine birds found in northern europe during the summer months and in southern europe and north of africa during the winter. they constitute an important small game bird group very appreciated by spanish hunters. between october 2013 and february 2014, 90 adult song thrushes were collected for their exam. after necropsies, three species of helminths were macroscopically recovered from 15 birds (16.7%): morishitium sp. (16.7%), splendidofilaria mavis (6.7%) ...202032777533
habitat-related differences in song structure and complexity in a songbird with a large repertoire.urbanisation has been shown to influence many aspects of animal vocal communication. much attention has been paid to anthropogenic noise, which is often described as one of the most challenging disturbances for urban dwellers. while a large body of literature describes associations between vocal behavior of avian populations and background noise level, most of these studies were conducted on species with relatively simple songs and small repertoire sizes. this study focuses on the song thrush, t ...201931533798
massive infection of a song thrush by mesocestoides sp. (cestoda) tetrathyridia that genetically match acephalic metacestodes causing lethal peritoneal larval cestodiasis in domesticated mammals.peritoneal larval cestodiasis induced by mesocestoides vaillant, 1863 (cyclophyllidea: mesocestoididae) is a common cause of severe infections in domestic dogs and cats, reported also from other mammals and less frequently from birds. however, there is a limited knowledge on the taxonomy of causative agents of this disease.201931088533
redescription of porrocaecum semiteres (zeder, 1800) (nematoda: ascaridida) from the song thrush turdus philomelos (passeriformes: turdidae).porrocaecum semiteres (zeder, 1800) (ascaridida: ascaridoidea) occurs frequently in various birds in europe. however, the knowledge of the morphology of this species remains insufficient.201930637558
microfilariae in birds in the czech republic, including a note on adult nematodes eufilaria delicata in a song thrush turdus philomelos.blood samples of more than 1,100 passerineform birds of 40 species were investigated for the occurrence of microfilariae. in the year 2005, 3 out of 677 birds of 31 species (prevalence 0.4%) were infected with microfilariae during the post-nesting period. during the pre-nesting period in the year 2007, 11 out of 438 birds of 31 species were infected with microfilariae (prevalence 2.5%). both the pre-nesting and post-nesting examinations were conducted at the same location in the northeastern par ...201121400118
long-term changes in migration timing of song thrush turdus philomelos at the southern baltic coast in response to temperatures on route and at breeding grounds.climate warming causes the advancement of spring arrival of many migrant birds breeding in europe, but the effects on their autumn migration are less known. we aimed to determine any changes in the timing of song thrush captured during spring and autumn migrations at the polish baltic coast from 1975 to 2014, and if these were related to long-term changes of temperature at their breeding grounds and migration routes. the timing of spring migration at hel ringing station in 1975-2014 did not show ...201829804234
effects of forest structure on the interaction between avian hosts, dipteran vectors and haemosporidian parasites.forest habitats are important biodiversity refuges for a wide variety of bird species. parasitism may modulate host species presence and abundance, and parasite effects can change according to forest management practices. such processes are not well studied in vector-borne avian haemosporidians. we analyzed the effects of forest management on bird-dipteran-haemosporidian interactions, using seven common bird species in managed and unmanaged beech forest habitats in northeastern germany. we assum ...202032814584
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