| a survey for yersinia pseudotuberculosis in migratory birds in coastal japan. | yersinia pseudotuberculosis was isolated from three specimens of two species of birds, the black-faced bunting (emberiza spodocephala) and pied wagtail (motacilla alba), of 528 specimens of birds examined from coastal regions in japan. the two isolated strains of y. pseudotuberculosis were identified as serovar 4b and serovar 3. this is the first isolation of y. pseudotuberculosis from birds in japan. yersinia enterocolitica was isolated from three specimens of the pied wagtail, one specimen of ... | 1989 | 2761013 |
| egg colour mimicry in the common cuckoo cuculus canorus as revealed by modelling host retinal function. | some parasite cuckoo species lay eggs that, to the human eye, appear to mimic the appearance of the eggs of their favourite hosts, which hinders discrimination and removal of their eggs by host species. hitherto, perception of cuckoo-host egg mimicry has been estimated based on human vision or spectrophotometry, which does not account for what the receivers' eye (i.e. hosts) actually discriminates. using a discrimination model approach that reproduces host retinal functioning, and museum egg col ... | 2008 | 18595836 |
| Community composition of aquatic birds in lakes of Bangalore, India. | Observations were made on the occurrence, abundance, richness, and diversity of waterbirds in 15 major lakes in Bangalore city during 2008 - 2009. During the study period 35 species of aquatic birds were recorded. The number of aquatic bird species recorded at various lakes ranged from 23 to 35. The percent abundance of waterbirds recorded in the study lakes ranged from 2.46 to 21.49 and itwas significantly different (p < 0.05). The diversity and species evenness of waterbirds in the lakes range ... | 2011 | 21888236 |
| unusual finding of trichobilharzia sp. in motacilla alba in the czech republic. | adult male worms of trichobilharzia sp. recovered from a pied wagtail (motacilla alba) in the czech republic were found to belong to a new species of the genus. the finding of trichobilharzia sp. in a passeriform bird in europe represents an important discovery, as only anseriform birds have thus far been reported as final hosts of the european trichobilharzia species. | 2006 | 16469179 |
| [photoperiodic conditions during molting of the indian pied wagtail (motacilla alba dukhunensis) and location of its winter habitats]. | the results of studying molting before the start of the mating season in indian pied wagtail yearlings taken from the nests in the lower ob' region and in the mid-urals and kept in captivity for a year are studied. reliable differences in the completeness of molting in northern birds as compared with it in mid-ural birds are revealed, as are requirements for the wintering photoperiod. we assume the existence of a latitudinal differentiation during this period: 20 degrees-30 degrees n for mid-ura ... | 2016 | 24459856 |
| the matching law applies to wagtails' foraging in the wild. | field data concerning the time budgets and foraging success of pied wagtails (motacilla alba yarrelli, gould) are reanalyzed. it is found that the data are well described by the generalized matching law, with a marked bias towards spending time on the territory. in this case matching is not the result of maximizing reward rate, but it remains possible that it results from an allocation of time that maximizes survival. | 1986 | 16812441 |
| bird predation selects for wing shape and coloration in a damselfly. | wing shape is related to flight performance, which is expected to be under selection for improving flight behaviours such as predator avoidance. moreover, wing conspicuousness, usually involved in sexual selection processes, is also relevant in terms of predation risk. in this study, we examined how predation by a passerine bird, the white wagtail motacilla alba, selects wing shape and wing colour patch size in males of the banded demoiselle calopteryx splendens. the wing colour patch is intra- ... | 2015 | 25693863 |
| ecology and phylogeny of birds foraging at outdoor restaurants in sweden. | birds frequently visit the outdoor serving areas of restaurants to feed on scraps of food and leftovers. although this feeding association between humans and birds is widespread and could have significant effects, both positive and negative, for all taxa involved, the authors know of no published studies that have investigated restaurant bird communities. to lay the foundation for future research, the authors conducted a basic study of birds at 80 outdoor restaurants in sweden, identifying which ... | 2015 | 26491395 |
| complete mitochondrial genome of motacilla alba and implications for motacillidae taxonomy. | motacilla alba is a species of small and passerine songbird in the family motacillidae, which is widely distributed. in this study, we determined the complete mitochondrial genome of m. alba. the result showed that the total length of the mitogenome was 16 826 bp and contained 2 ribosomal rna genes, 22 transfer rna genes, 13 protein-coding genes, and one control region. all the genes in m. alba were distributed on the h-strand, except for the nd6 subunit gene and eight trna genes which were enco ... | 2016 | 26641012 |
| focal bird species and risk assessment approach for nonagricultural grassland scenarios in central europe. | the european food safety authority (efsa) guideline on risk assessment identifies pesticide exposure scenarios for nontarget wildlife; however, this scheme is not applicable to nonagricultural grassland. for example, different habitats and human utilization on golf courses attract bird communities that differ from those found in agricultural fields with annual crop cycles. the present study determined focal bird species for amenity grasslands such as golf courses following the efsa guideline. ba ... | 2014 | 24889926 |
| q fever in domestic and wild birds. | the authors report on the results of several years' research into the role of domestic and wild birds in the epidemiology and epizootiology of q fever in czechoslovakia. they examined 572 blood specimens taken from domestic birds in an area of endemic q fever and found positive reactions to the complement-fixation test in hens, turkeys, ducks, geese, and pigeons, with hens showing the highest percentage of positive reactions. in addition, the susceptibility of hens to infection with rickettsia b ... | 1956 | 13383368 |
| [comparative study of the sensory system in gamasid mites rhinonyssus rhinolethrum, rh. subrhinolethrum and ptilonyssus motacillae (mesostigmata: gamasina: rhinonyssidae), parasites in the nasal cavity of birds]. | sensillae of the tarsal receptor complex, palpal organ, and body chaetom were examined by means of scanning electron microscopy in three endoparasitic gamasid mites: rhinonyssus rhinolethrum, rh. subrhinolethrum and ptilonyssus motacillae, the parasites of anser albifrons, anas crecca, and motacilla alba, respectively. in the tarsal sensory complex, the scale of reduction of the olfactory sensilla reflects the adaptation of gamasid mites to cavernous parasitism. the topography of this sensilla i ... | 2002 | 12481607 |
| extensive phenotypic diversification coexists with little genetic divergence and a lack of population structure in the white wagtail subspecies complex (motacilla alba). | geographically clustered phenotypes often demonstrate consistent patterns in molecular markers, particularly mitochondrial dna (mtdna) traditionally used in phylogeographic studies. however, distinct evolutionary trajectories among traits and markers can lead to their discordance. first, geographic structure in phenotypic traits and nuclear molecular markers can be co-aligned but inconsistent with mtdna (mito-nuclear discordance). alternatively, phenotypic variation can have little to do with pa ... | 2018 | 29873425 |
| breeding biology of two wagtail subspecies on ulleung island, korea: amur wagtails, motacilla alba leucopsis and black-backed wagtails, m. a. lugens. | there is much controversy over the species and subspecies status of the white wagtail complex, which is further compounded by interbreeding between two subspecies, the amur wagtail (motacilla alba leucopsis) and the black-backed wagtail (m. a. lugens). this study presents preliminary information on the breeding biology of both subspecies on ulleung island, korea, over two breeding seasons (2012-2013). mixed pairs of the two subspecies were common on this island, with almost 50% of all pairs bein ... | 2018 | 30460106 |
| high susceptibility of the laboratory-reared biting midges culicoides nubeculosus to haemoproteus infections, with review on culicoides species that transmit avian haemoproteids. | haemosporidian parasites belonging to haemoproteus cause avian diseases, however, vectors remain unidentified for the majority of described species. we used the laboratory-reared biting midges culicoides nubeculosus to determine if the sporogonic development of three widespread haemoproteus parasites completes in this insect. the midges were reared and fed on one common blackbird, white wagtail and thrush nightingale naturally infected with haemoproteus minutus, haemoproteus motacillae and haemo ... | 2019 | 30176948 |
| effects of assortative mate choice on the genomic and morphological structure of a hybrid zone between two bird subspecies. | phenotypic differentiation plays an important role in the formation and maintenance of reproductive barriers. in some cases, variation in a few key aspects of phenotype can promote and maintain divergence; hence, the identification of these traits and their associations with patterns of genomic divergence is crucial for understanding the patterns and processes of population differentiation. we studied hybridization between the alba and personata subspecies of the white wagtail (motacilla alba), ... | 2017 | 28987006 |
| redescription of monorcholepis dujardini (krabbe, 1869) and m. passerellae (webster, 1952) (cestoda: cyclophyllidea: aploparaksidae) in passerine birds from the holarctic region. | two species of avian tapeworms, monorcholepis dujardini (krabbe, 1869) and m. passerellae (webster, 1952), of the cyclophyllidean family aploparaksidae mayhew, 1925 (earlier included in the hymenolepididae) are redescribed. relative to congeners, the morphology of the strobila of both species shows strong similarities including a unique form of the cirrus. separation of these species, however, can be based on the number (40-53 and 25-31, respectively) and size (18-25 microm and 14-18 microm) of ... | 2007 | 17441439 |