a study of the ciliar tracheal epithelium on passerine birds and small mammals subjected to air pollution: ultrastructural study.a study was made of the ciliar tracheal epithelium on passerine birds and small mammals subjected to nox, so2 emissions and particulates from a coal-fired power plant. the results were compared to those of a non-polluted area, very similar in vegetation, relief, and climatology. we studied carduelis carduelis (goldfinch), emberiza cia (rock bunting), parus major (great tit), turdus merula (blackbird), and apodemus sylvaticus (wood mouse). all animals were captured in the wild. we also used goldf ...19948024317
effects of air pollution on passerine birds and small mammals.the effects produced by emissions from coal-fired power plants, including mainly so2, nox and particulates, on natural populations and caged specimens of birds and small mammals were studied. the field-captured species used to evaluate these effects were passerine birds: parus major (coal tit) and emberiza cia (rock bunting), and the rodent apodemus sylvaticus (wood mouse). in parallel to this study on animals captured in the field, we used other animals, mus musculus (house mouse) and carduelis ...19938466292
[contribution to the knowledge of the virulence of toxoplasma gondii for carduelis carduelis l]. 195914446847
isolation of different serovars of salmonella enterica from wild birds in great britain between 1995 and 2003.postmortem examinations were carried out on the carcases of 779 wild birds. salmonellosis was a common cause of death in greenfinches (carduelis chloris), house sparrows (passer domesticus) and chaffinches (fringilla coelebs), and was also responsible for the deaths of other birds such as goldfinches (carduelis carduelis), feral pigeons and different species of gulls. most cases of salmonellosis in finches occurred between january and march, whereas salmonellosis in house sparrows tended to occu ...200616782854
mycobacterium genavense and avian polyomavirus co-infection in a european goldfinch (carduelis carduelis).systemic mycobacteriosis associated with avian polyomavirus infection was diagnosed histologically in an 8-year-old, captive european goldfinch with a history of nervous signs. severe mycobacterial lesions were observed in the central nervous system, lungs, cervical air sacs and adrenal glands, without involvement of the gastrointestinal tract. in addition to mycobacteriosis, intranuclear inclusions, typical of polyomavirus, were identified in the adrenal glands. polymerase chain reaction assays ...200717899468
spontaneous toxoplasmosis in canaries (serinus canaria) and other small passerine cage outbreak of spontaneous toxoplasma gondii infection on an italian bird-farm is described. small passerine birds (serinus canaria, carduelis chloris, carduelis carduelis, carduelis spinus, carduelis cannabina, pyrrhula pyrrhula) showed clinical signs consisting of anorexia, prostration, weight loss, diarrhoea and dyspnoea accompanied by a high mortality rate. clinical, pathological, biological and serological investigations were performed. characteristic lesions and toxoplasma gondii specimens ...198618766519
avian mycobacteriosis in companion birds: 20-year survey.the causative agents of avian mycobacteriosis in pet birds are rarely identified. the aim of this study is to add information about the etiology of avian mycobacteriosis. the identification of mycobacterium species in 27 cases of avian mycobacteriosis in pet birds was investigated by polymerase chain reaction (pcr) and sequencing of a rrna hypervariable region. avian mycobacteriosis appeared to be an infrequent diagnosis. interestingly, a few cases of avian mycobacteriosis were recorded in very ...200918789612
genotyping of cryptosporidium spp. from free-living wild birds from wild and domestic birds, cryptosporidiosis is often associated with infections by cryptosporidium galli, cryptosporidium baileyi and cryptosporidium meleagridis. in addition to these species, a number of avian cryptosporidium species yet to be fully characterized are commonly found among exotic and wild avian isolates. the present study aimed to detect and identify samples of cryptosporidium spp. from free-living wild birds, in order to contribute to the knowledge of the variability of this p ...201021035268
encephalitozoon hellem infection in aviary passerine and psittacine birds in spain.a european goldfinch (carduelis carduelis), a canary (serinus canaria), and a lovebird (agapornis roseicollis) captive-bred at three different private aviaries in spain were submitted for necropsy with a history of weakness and ruffled feathers, weight loss associated with glossitis, and respiratory disease, respectively. microscopically, enterocytes in the jejunum and ileum contained colonies of gram- and stamp-positive, oval to elliptical microorganisms within parasitophorous vacuoles in the a ...201626921040
feather mites (acari, astigmata) from azorean passerines (aves, passeriformes): lower species richness compared to european mainland.ten passerine species were examined on three islands of the azores (north atlantic) during 2013 and 2014 in order to identify their feather mite assemblages. we recorded 19 feather mite species belonging to four families of the superfamily analgoidea (analgidae, proctophyllodidae, psoroptoididae and trouessartiidae). a high prevalence of feather mite species was recorded on the majority of the examined host species. only three passerine species (sylvia atricapilla, regulus regulus and serinus ca ...201525665827
a test for a shift in the boundary of the geographical range of a predicted impact of climate change is a poleward shift in the boundaries of species ranges. existing methods for identifying such a boundary shift based on changes in the observed pattern of occupancy within a grid of cells are sensitive to changes in the overall rate of sightings and their latitudinal distribution that are unconnected to a boundary shift. a formal test for a boundary shift is described that allows for such changes. the test is applied to detect northward shifts in the north ...201424522628
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
the species status of the corsican finch carduelis corsicana assessed by three genetic markers with different rates of evolution.citril finches carduelis c. citrinella and corsican finches carduelis c. corsicana represent two closely related forms, endemic to european mountains and some mediterranean islands. their taxonomic status has recently been disputed based on the results from mitochondrial genes. we show that the use of different genetic markers may lead to different results in these two putative species. using the mitochondrial atp8+6 we found a clear difference between c. c. citrinella and c. c. corsicana (3.2%) ...200919249374
concurrent calicivirus and isospora lacazei infections in goldfinches (carduelis carduelis). 19948171798
concurrent papovavirus-like and atoxoplasma infections in a goldfinch (carduelis carduelis).a young goldfinch submitted for necropsy was found to have pale yellow enlarged liver diffusely spotted by petechial haemorrhages. histologically, hepatitis associated with the presence of karyomegalic cells was the main finding observed. electron microscopy revealed the presence of papovavirus-like particles in the karyomegalic nuclei. moreover, numerous atoxoplasma were observed by electron microscopy in the cytoplasm of mononuclear cells infiltrating the liver.199118680070
an experimental study of feeding, vigilance and predator avoidance in a single an aviary experiment with captive goldfinches (carduelis carduelis l.) vigilance and foraging behaviour were recorded before and after the appearance of a predator. when foraging, individual goldfinches had a low head jerk rate during the first minute, but each scan was of relatively expanded duration; the scanning rate increased with a shorter duration of each scan up to the time the predator, a merlin (falco columbarius), appeared. thereafter the birds showed a low head jerk rate, which ret ...198728312255
flock size and habitat-dependent food and energy intake of foraging goldfinches.during the breeding season goldfinches (carduelis carduelis l.) feed on milky ripe seeds of about 20 food plants. individual goldfinches joining a flock reduce the time spent vigilant with increasing flock size. therefore birds feeding in flocks get an increased intake of kernels per time unit. this was measured for five different food plants (dactylis glomerata (gramineae), knautia arvensis (dipsacaceae), senecio vulgaris, taraxacum officinale, tragopogon pratensis (compositae)). in large-sized ...198628312098
unravelling the drastic range retraction of an emblematic songbird of north africa: potential threats to afro-palearctic migratory birds.understanding how culture may influence biodiversity is fundamental to ensure effective conservation, especially when the practice is local but the implications are global. despite that, little effort has been devoted to documenting cases of culturally-related biodiversity loss. here, we investigate the cultural domestication of the european goldfinch (carduelis carduelis) in western maghreb (morocco, algeria and tunisia) and the effects of long-term poaching of wild populations (1990-2016) on r ...201728439077
characterization of plasmodium relictum, a cosmopolitan agent of avian malaria.microscopic research has shown that plasmodium relictum is the most common agent of avian malaria. recent molecular studies confirmed this conclusion and identified several mtdna lineages, suggesting the existence of significant intra-species genetic variation or cryptic speciation. most identified lineages have a broad range of hosts and geographical distribution. here, a rare new lineage of p. relictum was reported and information about biological characters of different lineages of this patho ...201829720195
an outbreak of trichomonosis in european greenfinches chloris chloris and european goldfinches carduelis carduelis wintering in northern france.avian trichomonosis is a common and widespread disease, traditionally affecting columbids and raptors, and recently emerging among finch populations mainly in europe. across europe, finch trichomonosis is caused by a single clonal strain of trichomonas gallinae and negatively impacts finch populations. here, we report an outbreak of finch trichomonosis in the wintering populations of chloris chloris (european greenfinch) and carduelis carduelis (european goldfinch) from the boulonnais, in northe ...201930957740
investigation of systemic isosporosis outbreaks in an aviary of greenfinch (carduelis chloris) and goldfinch (carduelis carduelis) and a possible link with local wild sparrows (passer domesticus).an outbreak of systemic isosporosis caused mortalities in greenfinches (carduelis chloris) and goldfinches (carduelis carduelis) kept in an aviary in the western suburbs of melbourne. the following year, a further outbreak in the same aviary occurred in a different flock of goldfinches. at the time of the second outbreak, dead and sick common sparrows (passer domesticus) discovered near the aviary were also found to have systemic isosporosis.202032430906
detection and characterization of the isospora lunaris infection from different finch hosts in southern iran.this study was conducted to investigate the isosporoid protozoan infections in finch types. fecal samples were collected from marketed domestic java sparrows (lonchura oryzivora), colored and white zebra finch (taeniopygia guttata), and european goldfinch (carduelis carduelis) in southern iran. the coccidial oocysts were recovered and investigated according to the morphological features and the ribosomal gene markers. additionally, a challenge infection was conducted with 5 × 104 and 5 × 103 spo ...202033179153
spatio-temporal dynamics and aetiology of proliferative leg skin lesions in wild british finches.proliferative leg skin lesions have been described in wild finches in europe although there have been no large-scale studies of their aetiology or epizootiology to date. firstly, disease surveillance, utilising public reporting of observations of live wild finches was conducted in great britain (gb) and showed proliferative leg skin lesions in chaffinches (fringilla coelebs) to be widespread. seasonal variation was observed, with a peak during the winter months. secondly, pathological investigat ...201830305642
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