| [anatomical and structural study of the eyeball of the common buzzard (buteo buteo buteo)]. | | 1979 | 159641 |
| [autoradiographic analysis of the primary visual projections of a diurnal predator (buteo buteo l.)]. | radioautographic analysis of the optic system of a common buzzard (buteo buteo l.) show hypothalamic (meier's areas 1, 2 and 3), thalamic (nuclei lateralis anterior, geniculatus lateralis ventralis, dorsolateralis anterior), pretactal (nuclei geniculatus lateralis pretectalis--or kuhlenbeck's geniculatus lateralis dorsalis--superficialis synencephali, griseus tectalis and area pretectalis), tegmental (nucleus ectomammillaris) and tectal visual projections. a general survey of common buzzard opti ... | 1977 | 405128 |
| leucocytozoon-like infection in parakeets, budgerigars and a common buzzard. | the gross and histological lesions of a protozoan infection, possibly caused by leucocytozoon, in parakeets (genera neophema and cyanoramphus), budgerigars (melopsittacus undulatus) and a wild buzzard (buteo buteo) are described. the infection appears not to have been identified before in budgerigars in great britain, and in its chronic form resulted in vomiting and wasting. the possible identity of the parasite and the epidemiological factors are considered. | 1991 | 1926686 |
| use of recombinant vaccinia-rabies glycoprotein virus for oral vaccination of wildlife against rabies: innocuity to several non-target bait consuming species. | the pathogenicity of a vaccinia recombinant virus expressing the rabies glycoprotein (vvtggrab) was tested in several wild animal species which could compete with the natural rabies host, the red fox (vulpes vulpes) in consuming vaccine baits in europe. the following species were included in this study: wild boar (sus scrofa), eurasian badger (meles meles), wood mouse (apodemus sylvaticus), yellow-necked mouse (apodemus flavicollis), bank vole (clethrionomys glareolus), common vole (microtus arv ... | 1989 | 2681844 |
| [characterization of campylobacter spp. from wild birds]. | bacteria of the genus campylobacter were isolated from 28 rooks (corvus frugilegus), 1 red kite (milvus milvus), 1 lapwing (vanellus vanellus), 1 coot (fulica atra), 1 common moorhen (gallinula chloropus) and 1 northern mallard (anas platyrhynchos). altogether, c. jejuni biovar 1, was isolated 19x, c. jejuni biovar 2 8x and c. coli 5x. among c. jejuni biovar 1 and 2 there were 5 isolates tolerating a content of 1.5% nacl in the medium. h2s proof of 3 c. jejuni biovar 2 and 1 c. coli isolates res ... | 1989 | 2930449 |
| the role of birds as definitive hosts and intermediate hosts of heteroxenous coccidians. | sarcocystis-like oocysts-sporocysts were found in four species of owls (asio otus, bubo bubo, strix aluco, and tyto alba) and in five species of predatory birds (accipiter gentilis, accipiter nisus, buteo buteo, circus aeruginosus, falco tinnunculus). in addition, the muscles of 15 of 41 (36.5%) pheasants (phasianus colchicus) and one of two jays (garrulus glandarius) were found to harbor three types of sarcocystis. three of 15 (20%) infected pheasants had type i cystozoites (6-8 x 2 microns) in ... | 1984 | 6439858 |
| isolation of a mycoplasma sp. from three buzzards (buteo spp.). | mycoplasma spp. were isolated from the respiratory tissues of three buzzards. bird i, a rough-legged buzzard (buteo lagopus), showed airsacculitis, catarrhal-fibrinous pneumonia, and catarrhal tracheitis. bird ii, a common buzzard (buteo buteo), revealed mycotic airsacculitis, bronchitis and pneumonia. bird iii was a healthy rough-legged buzzard. all isolates metabolized glucose but not arginine and were serologically identical by immunofluorescence and growth-inhibition tests. no serological cr ... | 1982 | 7049150 |
| lead poisoning of raptors in france and elsewhere. | although lead poisoning, through the ingestion of gunshot embedded in prey, is known to have been a significant mortality factor for several raptor species in the united states (haliaeetus leucocephalus and gymnogyps californianus), very little published information is available concerning raptors in europe. this paper presents the results of liver lead analysis from 222 raptors collected throughout france and reviews other published and unpublished european information. of the 11 diurnal and 6 ... | 1993 | 7682502 |
| safety study of the sag2 rabies virus mutant in several non-target species with a view to its future use for the immunization of foxes in europe. | the safety of the sag2 virus, a low virulence mutant of the sad strain, was investigated in ten species of mammals and seven species of birds liable to consume vaccine baits. these species are the western hedgehog (erinaceus europaeus), the meadow vole (microtus arvalis), the bank vole (clethrionomys glareolus), the water vole (arvicola terrestris), the field mouse (apodemus flavicollis or a. sylvaticus), the norway rat (rattus norvegicus), the european badger (meles meles), the domestic ferret ... | 1996 | 9014291 |
| field evidence of secondary poisoning of foxes (vulpes vulpes) and buzzards (buteo buteo) by bromadiolone, a 4-year survey. | this paper presents the result of a 4 year survey in france (1991-1994) based on the activity of a wildlife disease surveillance network (sagir). the purpose of this study was to evaluate the detrimental effects of anticoagulant (ac) rodenticides in non-target wild animals. ac poisoning accounted for a very limited number of the identified causes of death (1-3%) in most species. predators (mainly foxes and buzzards) were potentially exposed to anticoagulant compounds (especially bromadiolone) vi ... | 1997 | 9353908 |
| embryonic and neonatal mortality from salmonellosis in captive bred raptors. | in a captive breeding center near rome (italy), cases of embryonic and neonatal death were recorded during the breeding seasons in the european eagle owl (bubo bubo), peregrine falcon (falco peregrinus), buzzard (buteo buteo), and lanner falcon. (falco biarmicus). salmonella havana and s. virchow were isolated. three pulli, clinically infected with s. havana, were successfully treated with enrofloxacin. from two groups of healthy 3- to 4-wk-old eagle owls, salmonella sp. group 61 (61:r:-) and s. ... | 1998 | 9476227 |
| polygranulomatosis in a common buzzard (buteo buteo) due to escherichia coli (hjärre's disease). | | 2001 | 11808667 |
| trypanosoma avium of raptors (falconiformes): phylogeny and identification of vectors. | avian trypanosomes are widespread parasites of birds, the transmission of which remains mostly unclear, with various blood-sucking insects mentioned as possible vectors. a search for vectors of trypanosomes of sparrowhawk (accipiter nisus), buzzard (buteo buteo), lesser-spotted eagle (aquila pomarina) and kestrel (falco tinnunculus) was performed in czech and slovak republics. black flies (eusimulium spp.), hippoboscid flies (ornithomyia avicularia), mosquitoes (culex pipiens pipiens) and biting ... | 2002 | 12358422 |
| [experimental infection of buteo buteo l. with leptospira grippotyphosa]. | | 1958 | 13573442 |
| experimental infection of the buzzard (buteo buteo l.) and the kestrel (falco tinnunculus l.) with tick-borne encephalitis virus. | | 1963 | 13973673 |
| trypanosoma avium: experimental transmission from black flies to canaries. | trypanosomes identified as trypanosoma avium were found in the ornithophilic black flies ( eusimulium latipes) attacking buzzard nestlings ( buteo buteo). parasites formed plugs and rosettes in the hindgut of the vector and were attached on the cuticular lining of the black fly anterior intestine (ileum) by hemidesmosome-like plaques. hindgut stages from infected black flies were experimentally transmitted into canaries ( serinus canaria) by ingestion of vectors and by contamination of host conj ... | 2004 | 14652745 |
| helminths isolated from the digestive tract of diurnal raptors in catalonia, spain. | the prevalence of parasitic helminths in the digestive tract of 119 diurnal raptors (falconiformes), which had died in a wildlife rehabilitation centre in catalonia, was studied. the birds belonged to 13 species, with 100 of them (84 per cent) being kestrels (falco tinnunculus), buzzards (buteo buteo), sparrowhawks (accipiter nisus) and goshawks (accipiter gentilis). ninety-five of the birds (79.8 per cent) were infected with helminths. nematodes were the most frequently found helminth (75.6 per ... | 2004 | 14725424 |
| the effects of isoflurane anaesthesia on some doppler-derived cardiac parameters in the common buzzard (buteo buteo). | in order to gain an initial overview of the influence of anaesthesia on the results of doppler-derived blood flow measurements in raptors, the heart rate as well as three different sample volumes of pulsed-wave spectral doppler-derived flow velocity (diastolic flow across the left and right atrioventricular valve, systolic flow across the aortic valve) were determined in 10 common buzzards (buteo buteo). measurements were taken once in conscious and once in anaesthetized birds. anaesthesia was s ... | 2003 | 14550740 |
| sex determination in the common buzzard (buteo buteo) by means of endoscopy and dna analysis. | | 2003 | 14535388 |
| newcastle disease virus and chlamydia psittaci in free-living raptors from eastern germany. | organ samples from free-living raptors from the federal states of berlin and brandenburg in eastern germany were tested for newcastle disease virus (ndv; n = 331) and chlamydia psittaci (n = 39) by polymerase chain reaction (pcr). in 18 individuals ndv nucleic acids were detected. these samples originated from barn owls (tyto alba; n = 15, 28%), tawny owl (strix aluco; n = 1, 5%), common buzzard (buteo buteo, n = 1, 1%), and european kestrel (falco tinnunculus; n = 1, 4%). in 29 (74%) of 39 samp ... | 2003 | 12685068 |
| plasma b-esterase activities in european raptors. | b-esterases are serine hydrolases composed of cholinesterases, including acetylcholinesterase (ache) and butyrylcholinesterase (bche), and carboxylesterase (cbe). these esterases, found in blood plasma, are inhibited by organophosphorus (op) and carbamate (cb) insecticides and can be used as nondestructive biomarkers of exposure to anticholinesterase insecticides. furthermore, b-esterases are involved in detoxification of these insecticides. in order to establish the level of these enzymes and t ... | 2005 | 15827224 |
| persistent organochlorine contaminants in eggs of northern goshawk and eurasian buzzard from northeastern spain: temporal trends related to changes in the diet. | persistent organochlorine compounds (pesticides and polychlorinated biphenyls) were determined in 24 northern goshawk (accipiter gentilis) and eight eurasian buzzard (buteo buteo) samples of eggs collected between 1988 and 1999 in la segarra (northeast spain), in order to evaluate the changes in exposure and detrimental effects during this period. in the study area, both species exhibited similar levels of contamination, which may be related to their similar diet, mainly based on european rabbit ... | 2003 | 12547524 |
| antibodies to adenoviruses in free-living common buzzards from germany. | one hundred sixty-seven plasma samples of free-living birds of prey from berlin and brandenburg state (germany) were tested for antibodies against avian adenovirus (fav, group i) using agar gel precipitation test. antibodies to fav were detected in seven (4%) of 167 total samples. the positive samples originated only from common buzzards (buteo buteo; seven [12%] of 59). this serologic survey provides evidence of natural exposure of free-living common buzzards from eastern germany to adenoviruse ... | 2002 | 12238387 |
| morphometry of the heart of budgerigars (melopsittacus undulatus), alisterus parrots (alisterus s scapularis) and common buzzards (buteo buteo). | in order to establish data and reference values for the thickness of the myocardium and the length of the left and the right ventricle of the avian heart, the hearts of 14 budgerigars (melopsittacus undulatus), five alisterus parrots (alisterus s scapularis) (also known as australian king parrot) and 10 common buzzards (buteo buteo) of both sexes were examined according to a standard protocol. in order to compare the results of birds of different sizes all data were related to the size of the bi ... | 2002 | 12027596 |
| [occurrence of parasites in indigenous birds of prey and owls]. | in the present paper a general overview on parasites in birds of prey and owls is given. this part is followed by a study investigating the prevalences and species of parasites in free-ranging birds of prey and owls in berlin and brandenburg state, germany. over a one year period, 84 birds of prey and owls of the following species were examined for the presence of endo- and ectoparasites: common buzzard (buteo buteo) (n = 32), kestrel (falco tinnunculus) (n = 20), sparrowhawk (accipiter nisus) ( ... | 2002 | 11852683 |
| ultrasonographic and computed tomographic examinations of the avian eye: physiologic appearance, pathologic findings, and comparative biometric measurement. | ultrasonography (us) and computed tomography (ct) were performed after routine ophthalmologic and ophthalmoscopic examinations in 190 eyes of six various diurnal (common buzzard [buteo buteo l., 1758], n = 20; common kestrel [tinnunculus tinnunculus l., 1758], n = 20) and nocturnal raptor species (barn owl [tyto alba l., 1758], n = 22; tawny owl [strix aluco l., 1758], n = 8; long-eared owl [asio otus l., 1758], n = 5; horned owl [bubo bubo l., 1758], n = 1); and domestic pigeons (columba livia, ... | 2006 | 17009515 |
| electrocardiogram reference values for the buzzard in spain. | electrocardiographic reference values were established on apparently healthy buzzards (buteo buteo) in lugo (spain) from march 1997 to june 1999. all birds were anesthetized with isofluorane and placed in dorsal recumbence. the standard and augmented unipolar limb leads electrocardiograms were recorded in 65 buzzards. the wave forms were analyzed in lead ii at 50 mm/sec and at 1 cm = 1 mv to determine p, pr, qrs, t and qt durations and p, qrs and t amplitudes. the polarity of each wave form was ... | 2001 | 11763731 |
| aliphatic hydrocarbons in birds of prey from galicia (nw spain). | eleven aliphatic hydrocarbons, unresolved over resolved ratio (u/r), carbon preference index (cpi), pristane/c17 ratio, and totals were determined in six classes of tissues (heart, liver, intestine, muscle, lung, and kidney) of 10 buzzards (buteo buteo), 10 barn owls (tyto alba), and five tawny owls (strix aluco) from galicia (nw spain). among individuals detected at quantifiable levels, in general, c18 was found to be the most abundant. total aliphatic hydrocarbons were detected in 77% tissue s ... | 2001 | 11534951 |
| seroepizootiology of selected infectious disease agents in free-living birds of prey in germany. | four hundred forty-eight blood plasma samples from free-living birds of prey from berlin and the brandenburg area in eastern germany were tested for antibodies against newcastle disease virus (ndv), falcon herpesvirus (fhv), owl herpesvirus (ohv), and chlamydia psittaci. antibodies to ndv were detected in 6 (2%) of 346 tested diurnal birds of prey, whereas none of the owls (n = 55) was positive. the positive samples originated from two common buzzards (buteo buteo), three ospreys (pandion haliac ... | 2001 | 11272489 |
| strigea falconispalumbi in eurasian buzzards from germany. | eighty-three free-living eurasian buzzards (buteo buteo) from three different areas in germany were examined for adult stages and the metacercaria of the trematode strigea falconispalumbi. prevalences of adult parasites in the small intestine was 36% (berlin/brandenburg), 28% (lower saxony) and 3% (baden-württemberg). metacercaria in the connective tissue of the neck were found in 58%, 55%, and 10% of birds from the respective areas. significant differences in the prevalence of s. falconispalumb ... | 2000 | 10941745 |
| prevalence of haematozoa in birds of prey in catalonia, north-east spain. | blood samples from birds of prey, 95 strigiformes and 190 falconiformes, were examined for the presence of haematozoan parasites. the birds had been admitted to a raptor recovery centre in catalonia, north-east spain. parasites were counted in positive smears. a second blood sample was obtained from 99 birds at least seven days after their arrival at the centre. haematozoa were detected in all seven species of strigiformes and in nine of 19 species of falconiformes. the overall prevalences in th ... | 1999 | 10399244 |
| plasmodium spp. in raptors on the eurasian-african migration route. | examination of blood smears obtained from raptors trapped while on migration at eilat, israel, demonstrated plasmodium infection in accipiter brevipes and buteo buteo. the following species are described, from a. brevipes: plasmodium alloelongatum n. sp., p. accipiteris n. sp. and from b. buteo: p. buteonis n. sp. and plasmodium sp. for which we lack sufficient data for adequate species description. overall prevalence of infection with plasmodium spp. was very low: among 38 examined a. brevipes ... | 2007 | 18225420 |
| [treatment of a mandibular fracture in a common buzzard (buteo buteo l., 1758)]. | a common buzzard with an old dislocated unilateral mandibular fracture causing apathy, inappetence and reduction of body weight was presented for surgical treatment (reduction of fracture, intramedullary pinning with a kirschner wire). postoperatively the wild bird recovered rapidly and could eat without assistance after four days. evaluation of the raptor six weeks p.op. revealed normal occlusion and fracture healing. therefore, it was decided to release the bird into wildlife. | 1996 | 8767186 |
| [parasites of austrian birds of prey (falconiformes)]. | during the examination of 158 birds of prey -- buteo buteo (85), falco tinnunculus (30), accipiter gentilis (19), accipiter nisus (18), circus aeruginosus (2), circus pygargus (1), pandion haliaetus (1), pernis apivorus (1), falco subbuteo (1) and faeces samples of falco tinnunculus 4 protozoan species, 1 trematode species, 2 cestode species, 13 nematode species, 2 acanthocephalan species and 5 mallophaga species could be detected. in the buzzard, kestrel and goshawk a new species of capillaria ... | 1980 | 7212374 |
| 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 |
| occurrence of leucocytozoon and haemoproteus (apicomplexa, haemosporina) in falconiformes and strigiformes of italy. | blood smears from falconiformes (91 birds of 10 species) and strigiformes (23 birds of 5 species) captured in italy, were examined for haematozoa. leucocytozoon were found in falco tinnuculus, buteo buteo, circus cyaneus, circus pygargus, accipiter nisus from falconiformes and in strix aluco, from strigiformes. haemoproteus were found in falco tinnuculus and strix aluco; this latter species harbored mixed infections leucocytozoon-haemoproteus. prevalences were 20.80% in falconiformes and 21.74% ... | 1984 | 6431891 |
| bacteriological study of the feathers and lice of captive common buzzards (buteo buteo). | we have investigated the external and internal bacterial flora associated with several species of lice parasites of captive common buzzards (buteo buteo) and studied the bacterial flora on the host feathers. the bacterial flora inside the ectoparasites was significatively different from that of their surface. bacteria of genus staphylococcus, especially s. aureus, predominated, being more abundant on lice surface. bacillus was another gram-positive bacteria frequently isolated, although it was m ... | 1994 | 18671081 |
| a unilateral extra digit in a wild common buzzard (buteo buteo). | a unilateral vestigial extra digit on the tibio-tarsal joint of a yearling wild (free-living common buzzard (buteo buteo) is described. | 1989 | 18679848 |
| isolation of mycoplasmas from a buzzard, falcons and vultures. | thirteen mycoplasmas were isolated from a peregrine falcon (falco peregrinus), two saker falcons (falco cherrug), a buzzard (buteo buteo), a black vulture (aegypius monachus), and two griffon vultures (gypsfuhus). six of them could be identified: mycoplasma gallinarum (three isolates), m. columborale (two isolates) and m. anatis (one isolate). the remaining seven isolates did not react with antisera against the known avian mycoplasma species in the indirect immunofluorescence and growth inhibiti ... | 1990 | 18679987 |
| 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 physiologic electroretinogram of the raptor bird--clinical and theoretical aspects]. | a method of electroretinography applicable to birds is described in this paper by the example of common buzzard (buteo buteo l.). electroretinograms (erg) under dark and bright adaptation as well as flicker ergs were recorded from 15 common buzzards, and normograms were established. methodological reliability was verified by a tenfold test on one animal. the results are compared with erg findings from dog and are discussed with reference to behaviour physiology and clinical diagnosis. | 1989 | 2774815 |
| the role of birds in dissemination of francisella tularensis: first direct molecular evidence for bird-to-human transmission. | during a recent large tularemia outbreak in bulgaria we found several cases that were remote from the main focus. one case had an unusual mode of transmission. a hunter acquired tularemia through a nail scratch from a buzzard (buteo buteo) and consequently developed a typical ulceroglandular form of the disease. the diagnosis was confirmed by serological methods and successful cultivation. comparative strain typing was performed by high-resolution multi-locus variable-number tandem repeat analys ... | 2010 | 19664305 |
| [the life cycle of frenkelia. 1. the identity of isospore buteonis from common buzzards and a frenkelia species (f. clethrionomyobuteonis spec. n.) from red-backed mice]. | | 1975 | 810130 |
| mlst and a genetic study of antibiotic resistance and virulence factors in vana-containing enterococcus from buzzards (buteo buteo). | to analyse the occurrence of faecal carriage of vancomycin-resistant enterococci (vre) in buteo buteo and to study the associated resistance and virulence genes. | 2010 | 20141591 |
| [ornithosis in the mouse buzzard (buteo buteo)]. | | 1977 | 588230 |
| accuracy and reproducibility of the tonovet rebound tonometer in birds of prey. | to examine the accuracy and reproducibility of intraocular pressure (iop) measurements obtained by the tonovet rebound tonometer. animals studied freshly enucleated healthy eyes of 44 free-ranging birds of prey out of the species haliaeetus albicilla, accipiter gentilis, accipiter nisus, buteo buteo, falco tinnunculus, strix aluco, asio otus and tyto alba euthanized because of unrelated health problems. | 2010 | 20840094 |
| first reported incursion of highly pathogenic notifiable avian influenza a h5n1 viruses from clade 2.3.2 into european poultry. | this study reports the first incursion into european poultry of h5n1 highly pathogenic notifiable avian influenza a (hpnai) viruses from clade 2.3.2 that affected domestic poultry and wild birds in romania and bulgaria, respectively. previous occurrences in europe of hpnai h5n1 in these avian populations have involved exclusively viruses from clade 2.2. this represents the most westerly spread of clade 2.3.2 viruses, which have shown an apparently expanding range of geographical dispersal since ... | 2010 | 21054819 |
| experiments on direct and secondary poisoning by fluoroacetamide (1081) in wildlife and domestic carnivores. | fluoroacetamide (1081 or f.a.a) is used in israel for field rodent control. experiments on direct and secondary, short and long term poisoning caused by 1081 were carried out. mongoose (herpestes ichneumon), hyena (hyaena hyaena), cats and dogs were susceptible. barn owls (tyto alba), buzzards (buteo buteo) and black kites (milvus m. migrans) were markedly resistant. barn owls tolerated total direct poisoning ranging from 6.8 to 10.9, and a final dose ranging from 0.8 to 2.0 mg/kg. in secondary ... | 1979 | 480523 |
| environmental exposure and distribution of lead in four species of raptors in southeastern spain. | the purpose of this study was to monitor exposure to lead in four species of raptors in southeastern spain (murcia region). samples of liver, kidney, brain, blood, and bone from two species of diurnal raptors (european kestrel (falco tinnunculus) and european buzzard (buteo buteo)) and two species of nocturnal raptors (eagle owl (bubo bubo) and little owl (athene noctua)) were obtained during 1994. relationships were found between size and age of the birds, the nearness to areas of human activit ... | 1997 | 9216874 |
| mesopredator release by an emergent superpredator: a natural experiment of predation in a three level guild. | intraguild predation (igp) is widespread but it is often neglected that guilds commonly include many layers of dominance within. this could obscure the effects of igp making unclear whether the intermediate or the bottom mesopredator will bear higher costs from the emergence of a new top predator. | 2010 | 21151912 |
| avian polymavirus in wild birds: genome analysis of isolates from falconiformes and psittaciformes. | avian polyomavirus (apv) infections have been reported to cause fatal disease in a wide range of psittacine species. here we demonstrate apv infections in buzzards (buteo buteo) and in a falcon (falco tinnunculus) found dead in germany, and in lovebirds (agapornis pullaria) with fatal disease, wild-caught in moçambique. apv infection in buzzards was determined by pcr amplification of parts of the viral genome followed by southern blot hybridisation. the genomes of the isolates obtained from the ... | 1998 | 9739329 |
| organochlorine pesticides and polychlorinated biphenyls in common buzzard (buteo buteo) from sicily (italy). | in the present study, we investigated the concentrations and distribution of organochlorine pesticides (ocs) and polychlorinated biphenyls (pcbs) in intestine, liver, and muscle samples of 11 common buzzards (buteo buteo) from sicily used as bioindicator for monitoring pollution in environment. all samples of common buzzards were collected at the "recovery center of wild fauna" of palermo, through the zooprophilactic institute. quantitative determination of ocs and pcbs in the samples examined h ... | 2011 | 21739282 |
| contribution to the problem of cyst-producing coccidians. | the problem of life cycles of cyst-producing coccidians, mainly those of the genus sarcocystis, from carnivorous birds has been discussed. oocysts of the "sarcocystic" type have been recovered from 9 species of birds of prey and owls from czechoslovakia. the course of experimental infection in a group of birds consisting of the species tyto alba, asio otus, strix aluco, buteo buteo has been described. we inoculated these birds with cystic stages of the genus sarcocystis obtained from white labor ... | 1978 | 416999 |
| nutritional condition and serum biochemistry for free-living swainson's hawks wintering in central argentina. | we assessed the nutritional condition and established reference values for serum chemistry parameters in a long distance migrant bird of prey, the swainson's hawk (buteo swainsoni), wintering in central argentina. we analyzed serum concentration of urea, uric acid, cholesterol, and triglycerides and assessed age and sex related differences in these parameters. a body condition index was obtained from the resultant residuals of the regression of body mass and a morphometric measure. no statistica ... | 2004 | 15123177 |
| helminth fauna of falconiform and strigiform birds of prey in galicia, northwest spain. | this is a survey of the helminth fauna of 285 individuals of 14 species of birds of prey (falconiformes and strigiformes) from galicia (northwest spain), namely buteo buteo, accipiter nisus, a. gentilis, milvus migrans, m. milvus, pernis apivorus, circus pygargus, falco tinnunculus, f. peregrinus, f. subbuteo, tyto alba, strix aluco, asio otus and athene noctua. a total of 15 helminth species were detected, namely 8 nematodes ( eucoleus dispar, capillaria tenuissima, synhimantus laticeps, microt ... | 2004 | 14714181 |
| competitive interactions among raptors in boreal forests. | we examined inter-specific interactions among goshawks ( accipiter gentilis), common buzzards (buteo buteo) and honey buzzards (pernis apivorus) in western finland in 1983-1996. because goshawks are among the largest birds of prey species in boreal forests they may take over the nest of smaller and less-competitive forest-dwelling raptors when searching for suitable places for breeding. accordingly, more than half of newly established goshawk territories were found on the territories previously ... | 2004 | 15375689 |
| lead in feathers and delta-aminolevulinic acid dehydratase activity in three raptor species from an unpolluted mediterranean forest (southeastern spain). | this paper presents the levels of lead found in the feathers of adult and blood of nestlings of booted eagle (hieraaetus pennatus), european buzzard ( buteo buteo), and goshawk (accipiter gentilis) sampled in the 1999 and 2000 breeding seasons in a mediterranean forest of the province of murcia (southeastern spain) located far from potential sources of metal contamination. levels of delta-aminolevulinic acid dehydratase activity (delta-alad) in blood were also measured in the nestlings. lead con ... | 2004 | 15386153 |
| heavy metal contamination in little owl (athene noctua) and common buzzard (buteo buteo) from northern italy. | in this study, two raptor species, the common buzzard (buteo buteo) and the little owl (athene noctua), were investigated for lead and cadmium concentrations, using liver, kidneys, pectoral muscle, sternum bone, and feathers. all the collected birds died at the centro recupero rapaci of lega italiana protezione uccelli in sala baganza (parma, italy). they arrived alive at the centro between november 1998 and november 1999 but died or were put to death as a consequence of injuries or other ailmen ... | 2005 | 15482841 |
| salmonella isolates from wild birds and mammals in the basque country (spain). | the authors investigated the prevalence of salmonella spp. in 205 wild birds and mammals belonging to 45 species during the years 2001 and 2002 in the basque country (spain). salmonella was isolated from 16 (7.8%) animals. the prevalence was 8.5% (7/82) in birds, and 7.2% (9/123) in mammals. nine serotypes, all of them belonging to the species salmonella enterica, were identified: two isolates of typhimurium (from 1/3 griffon vultures [gyps fulvus], and 1/5 sparrowhawks [accipiter nisus]); one o ... | 2004 | 15861885 |
| levels and distribution of polybrominated diphenyl ethers in various tissues of birds of prey. | in the present study, concentrations and tissue distribution of polybrominated diphenyl ethers (pbdes; iupac # 28, 47, 99, 100, 153, 154, 183, and 209) were examined in brain, adipose tissue, liver, muscle, and serum of birds of prey. median sigmapbde levels (bde 28-183) in the tissues of sparrowhawks ranged from 360 to 1900 ng/g lipid weight (lw), which was in general one order of magnitude higher than in the tissues of common buzzards (26-130 ng/g lw). there were no differences in pbde congene ... | 2006 | 16530311 |
| evidence for cryptic speciation of leucocytozoon spp. (haemosporida, leucocytozoidae) in diurnal raptors. | species of leucocytozoon (haemosporida, leucocytozoidae) traditionally have been described based on morphological characters of their blood stages and host cells, with limited information on their avian host specificity. based on the current taxonomy, leucocytozoon toddi is the sole valid species of leucocytozoids parasitizing falconiform birds. using a nested polymerase chain reaction protocol, we determined the prevalence of leucocytozoon infection in 5 species of diurnal raptors from californ ... | 2006 | 16729697 |
| role of birds of prey as carriers and spreaders of cryptococcus neoformans and other zoonotic yeasts. | in the last 20 years, cases of human cryptococcosis, have increased in immunocompromised patients. in several instances, the cases have been associated with the exposure of the patients to bird droppings. in order to investigate birds of prey as potential carriers and spreaders of cryptococcus neoformans and other yeasts of importance in human infections, 182 swab samples were collected from the cloacae of several species of birds of prey (group i) and 32 faecal samples from aviaries in which th ... | 2006 | 16966165 |
| host-specific exposure and fatal neurologic disease in wild raptors from highly pathogenic avian influenza virus h5n1 during the 2006 outbreak in germany. | raptors may contract highly pathogenic avian influenza virus h5n1 by hunting or scavenging infected prey. however, natural h5n1 infection in raptors is rarely reported. therefore, we tested raptors found dead during an h5n1 outbreak in wild waterbirds in mecklenburg-western pomerania, germany, in 2006 for h5n1-associated disease. we tested 624 raptors of nine species-common buzzard (385), eurasian sparrowhawk (111), common kestrel (38), undetermined species of buzzard (36), white-tailed sea eagl ... | 2015 | 25879698 |
| spread of influenza virus a (h5n1) clade 2.3.2.1 to bulgaria in common buzzards. | on march 15, 2010, a highly pathogenic avian influenza virus was isolated from the carcass of a common buzzard (buteo buteo) in bulgaria. phylogenetic analyses of the virus showed a close genetic relationship with influenza virus a (h5n1) clade 2.3.2.1 viruses isolated from wild birds in the tyva republic and mongolia during 2009-2010. designated a/common buzzard/bulgaria/38wb/2010, this strain was highly pathogenic in chickens but had low pathogenicity in mice and ferrets and no molecular marke ... | 2012 | 23017273 |
| plasma phenylacetate and 1-naphthyl acetate hydrolyzing activities of wild birds as possible non-invasive biomarkers of exposure to organophosphorus and carbamate insecticides. | organophosphorus and carbamate insecticides inhibit the carboxylesterases found in plasma. therefore, these carboxylesterases might be used as biomarkers of exposure to these insecticides. this work initiates the characterization of the phenylacetate (pa) and 1-nafthylacetate (na) hydrolyzing activities (paase and naase) in the plasma of 11 different wild bird species and aims to determine their suitability as biomarkers of exposure. paase activity values, expressed as mumol product/30min/ml pla ... | 2007 | 17174487 |
| evaluation of the usefulness of bird feathers as a non-destructive biomonitoring tool for organic pollutants: a comparative and meta-analytical approach. | in this study, we investigated whether bird feathers can be used as a non-destructive biomonitor for organic pollutants. we analysed the outermost tail feathers of 8 terrestrial and aquatic bird species from belgium (8 species, n=108) for polychlorinated biphenyls (pcbs), polybrominated diphenyl ethers (pbdes) and organochlorine pesticides (ocps). every compound class could be quantified in one single tail feather of the birds under study (sum pcbs ranging from 5.5 to 510 ng/g feather, sum pbdes ... | 2007 | 17198730 |
| distribution of polychlorinated biphenyls and polybrominated diphenyl ethers in birds of prey from switzerland. | polychlorinated biphenyls (pcbs) and the structurally related polybrominated diphenyl ethers (pbdes) have been associated with chronic neurotoxicity involving reduced motor activity and impaired attentiveness. such neurobehavioral effects indicate that the central nervous system may represent an important target organ for the action of these persistent contaminants in wildlife. as a consequence, the brain of different terrestrial and aquatic birds collected in switzerland was analysed for pcbs a ... | 2007 | 17307228 |
| biomagnification of pbdes in three small terrestrial food chains. | eight polybrominated diphenyl ethers (pbde) congeners (iupac nos. 28, 47, 99, 100, 153, 154, 183, and 209) were measured in passerines (great tits--parus major), wood mice (apodemus sylvaticus), and bank voles (clethrionomys glareolus). these data were combined with previously obtained data on pbdes in common buzzards (buteo buteo), sparrowhawks (accipiter nisus), and red fox (vulpes vulpes). this enabled estimation of the biomagnification potential of pbdes in the following three terrestrial fo ... | 2007 | 17310700 |
| epornitic of avian pox in common buzzards (buteo buteo): virus isolation and molecular biological characterization. | six common buzzards from a bird rescue centre showed wart-like lesions on their toes. the lesions consisted of multiple crusty and proliferative nodules surrounded by skin swelling. histologically, epithelial cell hypertrophy and hyperplasia with ballooning degeneration and large intracytoplasmic inclusion bodies consistent with avipoxvirus infection were seen. the virus was isolated in embryonated chicken eggs. positive chorioallantoic membranes and samples of skin lesions were submitted for po ... | 2007 | 17479378 |
| topography and arterial supply of the thyroid and the parathyroid glands in selected species of falconiformes. | birds of two suborders, accipitres and falcones were the subjects of the study. the thyroids were always located asymmetrically. in accipitridae the larger left gland was usually situated significantly more cranially than the right one. in common kestrel, the size of bilateral thyroids was similar while their mutual relationships were individually variable. the location of the parathyroid glands in common kestrel was relatively constant. seven topographical patterns of the location of the parath ... | 2007 | 17617099 |
| heavy metal (cd, pb, zn) and metalloid (as) content in raptor species from galicia (nw spain). | as top consumers in food chains, birds of prey forage over large geographical areas and so might be expected to accumulate environmental contaminants which are distributed in the environment. these wild animals can offer opportunities to detect and assess the toxicological effects of different inorganic elements on terrestrial ecosystems. in this study, different raptor species, both diurnal and nocturnal, were investigated for heavy metal (pb, cd and zn) and as concentrations in liver samples, ... | 2008 | 17617459 |
| prevalence of toxoplasma gondii in raptors from france. | little is known about the prevalence or importance of toxoplasma gondii infections in raptors. sera from eurasian buzzards (buteo buteo, n=14), tawny owls (strix aluco, n=12), barn owls (tyto alba, n=18), eurasian sparrowhawk (accipiter nisus, n=1), and common kestrels (falco tinnunculus, n=8) were examined for agglutinating antibodies using the modified agglutination test at 1:25 dilution. antibodies were not detected in common kestrels and the eurasian sparrowhawk but were detected in 11 euras ... | 2008 | 18263835 |
| species-specific polymerase chain reactions for the detection of mycoplasma buteonis, mycoplasma falconis, mycoplasma gypis, and mycoplasma corogypsi in captive birds of prey. | mycoplasmas are pathogens of different avian species, but the role of mycoplasma in raptors is not yet completely determined. as mycoplasma isolation and identification present several difficulties, species-specific polymerase chain reactions (pcrs) for the detection of mycoplasmas found in birds of prey (mycoplasma buteonis, mycoplasma corogypsi, mycoplasma falconis, and mycoplasma gypis) were established. the specificity of the pcr methods were investigated using known avian mycoplasma referen ... | 2008 | 18459303 |
| incidence of toxoplasma gondii in populations of wild birds in the czech republic. | the protozoan parasite toxoplasma gondii was isolated from 193 individuals of 25 wild avian species, in a survey between 1981 and 90 in which 5880 individuals, comprising 76 species, were examined. the incidence of t. gondii was 18% in rooks (corvus frugilegus), 12% in mallards (anas platyrhynchos), 8% in common buzzards (buteo buteo), 2% in pheasants (phasianus colchicus) and 0.5% in house sparrows (passer domesticus) and differed significantly in these species (x(2) test, p<0.001). in rooks, t ... | 1992 | 18670984 |
| comparison of holding power of three different pin designs for external skeletal fixation in avian bone: a study in common buzzard (buteo buteo). | (1) to evaluate resistance to axial extraction of 3 pin designs in avian humerus and tibiotarsus; (2) to assess the effect of pin location within the bone on holding power; and (3) to assess the influence of thread pitch on holding power. | 2008 | 19134093 |
| detection of escherichia coli harbouring extended-spectrum {beta}-lactamases of the ctx-m classes in faecal samples of common buzzards (buteo buteo). | | 2010 | 19892834 |
| new records of digenean flukes (trematoda) in birds in poland. | eleven new records of digenean species are reported in birds in poland, i.e. tylodelphys immer found in gavia stellata, strigea vanderbrokae in pernis apivorus, echinostoma academica in numenius arquata, echinochasmus euryporus in buteo buteo, patagifer parvispinosus and petasiger grandivesicularis in tachybaptus ruficollis, notocotyloides petasatus in calidris alpina, plagiorchis arcuatus in corvus cornix, leyogonimus polyoon in gallinula chloropus and fulica atra, lyperosomum alaudae in sylvia ... | 2010 | 20450011 |
| high seroprevalence of antibodies to toxoplasma gondii in wild animals from portugal. | we report an investigation of antibodies to toxoplasma gondii in 52 wild birds and 20 wild mammals from northern and central areas of portugal by using the modified agglutination test. the birds comprised 26 common buzzards (buteo buteo), five tawny owls (strix aluco), four white storks (ceconia ceconia), three eurasian eagle owls (bubo bubo), three northern goshawks (accipiter gentilis), two booted eagles (hieraaetus pennatus), two common barn owls (tyto alba), two eurasian sparrowhawks (accipi ... | 2010 | 21104273 |
| the morphology of the pecten oculi in the common buzzard (buteo buteo). | objective the pecten oculi are an intraocular, vascular, and pigmented structure peculiar to the avian eye. in this study, we investigated the pecten oculi of the common buzzard (buteo buteo) using stereomicroscopy and light and scanning electron microscopy (sem). procedures twenty eyes from 10 adult buzzards were studied. specimens from each buzzard were preserved in 10% buffered formalin and observed stereomicroscopically before being embedded in paraffin, sectioned, and stained with three s ... | 2011 | 22050894 |
| holding power of three different pin designs in the femur and ulna of the common buzzard (buteo buteo). | external skeletal fixation is generally considered the best stabilization technique for immobilizing avian long bone fractures, but one of its major complications is the failure of bone-fixation pin interface or the loss of holding power. consequently, this study is aimed at elucidating which pin design offers more pull-out strength in certain bones of the common buzzard (buteo buteo). to achieve this objective, three pin designs (a smooth design and two negative profile threaded designs, with d ... | 2011 | 22204047 |
| concentrations of retinol, 3,4-didehydroretinol, and retinyl esters in plasma of free-ranging birds of prey. | this study investigated vitamin a compounds in the plasma of healthy free-ranging central european raptors with different feeding strategies. plasma samples of nestlings of white-tailed sea eagle [white-tailed sea eagle (wtse), haliaeetus albicilla) (n = 32), osprey (pandion haliaetus) (n = 39), northern goshawk (accipiter gentilis) (n = 25), common buzzard (buteo buteo) (n = 31), and honey buzzard (pernis apivorus) (n = 18) and adults of wtse (n = 10), osprey (n = 31), and northern goshawk (n = ... | 2011 | 21895779 |
| reference intervals for intraocular pressure measured by rebound tonometry in ten raptor species and factors affecting the intraocular pressure. | intraocular pressure (iop) was measured with the tonovet rebound tonometer in 10 raptor species, and possible factors affecting iop were investigated. a complete ophthalmic examination was performed, and iop was assessed in 2 positions, upright and dorsal recumbency, in 237 birds belonging to the families accipitridae, falconidae, strigidae, and tytonidae. mean iop values of healthy eyes were calculated for each species, and differences between families, species, age, sex, left and right eye, as ... | 2011 | 22216716 |
| first detection of borrelia burgdorferi-antibodies in free-living birds of prey from eastern westphalia, germany. | borrelia (b.) burgdorferi sensu lato, the causative agent of lyme disease, is the most important arthropod-borne zoonosis-pathogen in the northern hemisphere. besides small mammals, birds, primarily passeriformes and sea birds, play an important role in the transmission, distribution and maintenance of this disease. previous studies on birds have focused mainly on the detection of borrelia-infected ticks. however, the presence or absence of an infected tick cannot be taken as an indicator of the ... | 2013 | 23823746 |
| lead and arsenic in bones of birds of prey from spain. | the bones (humerus and/or femur) of 229 birds of prey from 11 species were analyzed for pb and as to evaluate their exposure to pb shot. the species with the highest mean pb levels were red kite (milvus milvus) and eurasian griffon (gyps fulvus), and the species with the lowest levels were eurasian buzzard (buteo buteo) and booted eagle (hieraaetus pennatus). red kite also had the highest mean as level, an element present in small amounts in pb shot. elevated bone pb concentrations (>10 microg/g ... | 2003 | 12860107 |
| territorial occupancy dynamics in a forest raptor community. | a markovian modeling approach was used to explore territorial interactions among three forest raptors coexisting in a forested natural area in southeast spain: the booted eagle (hieraaetus pennatus), the common buzzard (buteo buteo) and the northern goshawk (accipiter gentilis). using field data collected over a period of 12 years, 11 annual transition matrices were built, considering four occupancy states for each territory. the model describes transitional processes (colonization, abandonment, ... | 2010 | 21136084 |
| chewing lice (phthiraptera) species on wild birds in cappadocia region, turkey. | objective: this study was performed on 70 injured wild birds belonging to 7 different species in the cappadocia region between 2005 and 2009. all birds were inspected for ectoparasites and 29 of 70 (41.4%) birds were found to be infested by at least one chewing louse species. methods: all lice were cleared in 10% koh, mounted in canada balsam on slides and identified under a light microscope. results: the lice were identified as laemobothrion maximum, craspedorrhynchus platystomus, degeeriella f ... | 2010 | 21391187 |
| [morphological studies in different avian species on artefacts induced by euthanasia with t 61 " or pentobarbital (narcoren)]. | in mammals (e. g. macaques, dogs, cats, rats, sheep) as well as in men (suicides) euthanasia performed by intravenous injection of t 61 leads to serious lesions in lung, kidney or/and liver (endothelial damage, hyperemia, oedema, necrosis). this is caused by the solvent dimethylformamide (dmf). in this study, in contrast, in different species of birds (e. g. blackbird, carrion crow, kestrel, common buzzard, homer pigeon, common wood pigeon, mallard duck) and various modes of applications and dos ... | 2013 | 22372321 |
| prevalence of chlamydia psittaci and other chlamydia species in wild birds in poland. | avian chlamydiosis is a zoonotic disease occurring in humans, poultry, and exotic birds. it has been suggested that some wild bird species play an important role as reservoirs for chlamydia, especially chlamydia psittaci. whereas c. psittaci is the predominant chlamydial agent in birds, in the present study we have determined the prevalence of different species of chlamydia among selected wild bird species in poland using a rapid and sensitive real-time pcr method. in total, 369 free-living bird ... | 2015 | 26501593 |
| occurrence of giardia and cryptosporidium in wild birds in galicia (northwest spain). | faecal samples were obtained from 433 wild birds being treated in wildlife recovery centres in galicia (northwest spain), between february 2007 and september 2009. the birds belonged to 64 species representing 17 different orders. giardia cysts and cryptosporidium oocysts were detected by an immunofluorescence antibody test and identified at the molecular level by established pcr-sequencing methods. the overall prevalence of giardia was 2·1% and that of cryptosporidium, 8·3%. to our knowledge, t ... | 2015 | 25669618 |
| wild birds as biological indicators of environmental pollution: antimicrobial resistance patterns of escherichia coli and enterococci isolated from common buzzards (buteo buteo). | a total of 36 escherichia coli and 31 enterococci isolates were recovered from 42 common buzzard faecal samples. the e. coli isolates showed high levels of resistance to streptomycin and tetracycline. the following resistance genes were detected: bla(tem) (20 of 22 ampicillin-resistant isolates), tet(a) and/or tet(b) (16 of 27 tetracycline-resistant isolates), aada1 (eight of 27 streptomycin-resistant isolates), cmla (three of 15 chloramphenicol-resistant isolates), aac(3)-ii with/without aac(3) ... | 2012 | 22403140 |
| 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 ... | 2017 | 27890632 |
| permanent genetic resources added to molecular ecology resources database 1 february 2012 - 31 march 2012. | this article documents the addition of 171 microsatellite marker loci and 27 pairs of single nucleotide polymorphism (snp) sequencing primers to the molecular ecology resources database. loci were developed for the following species: bombus pauloensis, cephalorhynchus heavisidii, cercospora sojina, harpyhaliaetus coronatus, hordeum vulgare, lachnolaimus maximus, oceanodroma monteiroi, puccinia striiformis f. sp. tritici, rhea americana, salmo salar, salmo trutta, schistocephalus solidus, sousa p ... | 2012 | 22642264 |
| genetic characterization of oropharyngeal trichomonad isolates from wild birds indicates that genotype is associated with host species, diet and presence of pathognomonic lesions. | oropharyngeal trichomonad isolates of wild birds from spain were studied. a total of 1688 samples (1214 of predator birds and 474 of prey species) from wildlife recovery centres and scientific bird-ringing campaigns were analysed from 2011 to 2013. the overall infection prevalence was 20.3% (11.4% in predator birds and 43.3% in prey species). pathognomonic lesions were present in 26% of the infected birds (57.3% in predator birds and 4.9% in prey species). the most commonly parasitized species w ... | 2014 | 25262786 |
| temporal trends in mercury concentrations in raptor flight feathers stored in an environmental specimen bank in galicia (nw spain) between 2000 and 2013. | temporal trends in hg concentrations were investigated in primary flight feathers from 319 specimens of three birds of prey: p7 in the northern goshawk (accipiter gentilis), p6 in the common buzzard (buteo buteo) and p5 in the tawny owl (strix aluco). the samples were stored in a regional environmental specimen bank and belonged to specimens which died between 2000 and 2013 in galicia (nw spain). we would expect to see a decline in hg concentrations across the study period, as data of atmospheri ... | 2017 | 27995410 |
| intraguild predation and competition impacts on a subordinate predator. | intraguild (ig) predation and interspecific competition may affect the settlement and success of species in their habitats. using data on forest-dwelling hawks from finland, we addressed the impact of an ig predator, the northern goshawk accipiter gentilis (goshawk), on the breeding of an ig prey, the common buzzard buteo buteo. we hypothesized that the subordinate common buzzard avoids breeding in the proximity of goshawks and that interspecific competitors, mainly strix owls, may also disturb ... | 2016 | 26841931 |
| intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance. | intraguild predation (igp) is a commonly recognized mechanism influencing the community structure of predators, but the complex interactions are notoriously difficult to disentangle. the mesopredator suppression hypothesis predicts that a superpredator may either simultaneously repress two mesopredators, restrain the dominant one and thereby release the subdominant mesopredator, or elicit different responses by both mesopredators. we show the outcome arising from such conditions in a three-level ... | 2016 | 26781959 |
| habitat effects on the breeding performance of three forest-dwelling hawks. | habitat loss causes population declines, but the mechanisms are rarely known. in the european boreal zone, loss of old forest due to intensive forestry is suspected to cause declines in forest-dwelling raptors by reducing their breeding performance. we studied the boreal breeding habitat and habitat-associated breeding performance of the northern goshawk (accipiter gentilis), common buzzard (buteo buteo) and european honey buzzard (pernis apivorus). we combined long-term finnish bird-of-prey dat ... | 2015 | 26422684 |
| observations on the right ovary of birds of prey: a histological and immunohistochemical study. | in most avian species, only the left ovary and oviduct are developed in the adult bird. right ovaries and oviducts usually do not mature further after hatching and remain only rudimentary. however, occurrence of a functional right ovary is frequently found in several species of birds of prey. in this study, we investigated the occurrence of the right ovaries and their morphology in these bird species. four examined wild bird species possessed a right ovary: long-eared owl, common buzzard, sparro ... | 2015 | 24895012 |
| lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. | structural elements for breeding such as nests are key resources for the conservation of bird populations. this is especially true when structural elements require a specific and restricted habitat, or if the construction of nests is costly in time and energy. the availability of nesting-platforms is influenced by nest creation and persistence. in a mediterranean forest in southeastern spain, nesting-platforms are the only structural element for three forest-dwelling raptor species: booted eagle ... | 2014 | 24717935 |
| molecular identification of traces from the white-tailed sea eagle. | over the preceeding decades, after periods of dramatic decline and extinction in many parts of europe, the white-tailed sea eagle (haliaeetus albicilla) has re-colonized traditional breeding areas. however, this large apex predator remains threatened, not only by the bioaccumulation of environmental pollutants, but also by targeted poisoning and poaching. in connection with a forensic case, a novel pcr assay was developed for the sensitive and specific detection of sea eagle dna traces in questi ... | 2013 | 22926772 |