| feather mites of the genus proterothrix gaud (astigmata: proctophyllodidae) from parrotbills (passeriformes: paradoxornithidae) in china. | three new species of the feather mite genus proterothrix (proctophyllodidae: pterodectinae) are reported from parrotbills (passeriformes: paradoxornithidae) in china. we describe proterothrix paradoxornis n. sp. from paradoxornis webbianus (type host) and par. alphonsianus, p. longicaula n. sp. from par. gularis, and p. sarahbushae n. sp. from par. verreauxi (type host) and par. alphonsianus. these are the first records of mites of the pterodectinae from the paradoxornithidae. within proterothri ... | 2009 | 19281277 |
| characterization of the transcriptome of an ecologically important avian species, the vinous-throated parrotbill paradoxornis webbianus bulomachus (paradoxornithidae; aves). | adaptive divergence driven by environmental heterogeneity has long been a fascinating topic in ecology and evolutionary biology. the study of the genetic basis of adaptive divergence has, however, been greatly hampered by a lack of genomic information. the recent development of transcriptome sequencing provides an unprecedented opportunity to generate large amounts of genomic data for detailed investigations of the genetics of adaptive divergence in non-model organisms. herein, we used the illum ... | 2012 | 22530590 |
| whole-genome sequences of low-virulence strain cb3 and mild strain cb7 of chlamydia psittaci. | avian chlamydia psittaci is an obligate intracellular zoonotic pathogen especially dispersed from birds, and it is known to cause pericarditis, pneumonia, lateral nasal adenitis, peritonitis, hepatitis, splenitis, and other diseases. generalized infections result in fever, anorexia, lethargy, and diarrhea, depending on the chlamydial genotype and the affected bird species. although many complete genomes of c. psittaci have been sequenced, we report here the genomes of two strains isolated from t ... | 2014 | 24903864 |
| perfluoroalkyl acids in the egg yolk of birds from lake shihwa, korea. | concentrations of perfluoroalkyl acids (pfas) were measured in egg yolks of three species of birds, the little egret (egretta garzetta), little ringed plover (charadrius dubius), and parrot bill (paradoxornis webbiana), collected in and around lake shihwa, korea, which receives wastewaters from an adjacent industrial complex. mean concentrations of perfluorooctanesulfonate (pfos) ranged from 185 to 314 ng/g ww and were similar to those reported for bird eggs from other urban areas. long-chain pe ... | 2008 | 18754515 |
| toward a resolution of a taxonomic enigma: first genetic analyses of paradoxornis webbianus and paradoxornis alphonsianus (aves: paradoxornithidae) from china and italy. | paradoxornis webbianus and paradoxornis alphonsianus naturally occur in south-east asia. due to a recent introduction, a mixed population currently occurs in northern italy. a preliminary phylogeographic analysis using samples from italy and china found little genetic differentiation between the two taxa and revealed the existence of two molecular lineages, sympatric in some part of china, that do not correspond to the morphological classification. possible taxonomic changes and preliminary infe ... | 2010 | 20884363 |
| the complete mitochondrial genome of the fulvous parrotbill paradoxornis fulvifrons (passeriformes: muscicapidae). | the complete mitochondrial genome of the fulvous parrotbill (paradoxornis fulvifrons) has been determined from illumina sequencing data. the circular genome is 17 059 bp long, comprising 37 genes (13 protein-coding genes/pcgs, 22 trna genes and two rrna genes) and a putative control region. except for cox1 with gtg as its start codon, all pcgs are initiated with the atr (ata/atg) codons. one pcg (cox1) is terminated with agg, three pcgs (cox3, nd2 and nd4) with the incomplete stop codon t--/ta-, ... | 2017 | 26710310 |
| climate niche differentiation between two passerines despite ongoing gene flow. | niche evolution underpins the generation and maintenance of biological diversity, but niche conservatism, in which niches remain little changed over time in closely related taxa, and the role of ecology in niche evolution are continually debated. to test whether climate niches are conserved in two closely related passerines in east asia - the vinous-throated (paradoxornis webbianus) and ashy-throated (p. alphonsianus) parrotbills - we established their potential allopatric and sympatric regions ... | 2015 | 25582865 |
| the complete mitochondrial genome of paradoxornis webbianus (passeriformes, muscicapidae). | the complete sequences of the mitochondrial dna genome from paradoxornis webbianus was determined using the polymerase chain reaction method. the genome (16,960 bp in length) contained 37 genes (13 protein-coding genes, 2 rrna genes and 22 trna genes), a control region (d-loop) and a non-coding region at two different locations of mitogenome, which is similar to the typical mtdna of vertebrates. all the protein-coding genes in p. webbianus were distributed on the h-strand, except for the nd6 sub ... | 2015 | 24409865 |
| trophic niche width increases with bill-size variation in a generalist passerine: a test of niche variation hypothesis. | the niche variation hypothesis (nvh) predicts that populations with wider niches are phenotypically more variable than populations with narrower niches, which is frequently used to explain diversifying processes such as ecological release. however, not all empirical evidence supports the nvh. furthermore, a relationship between population phenotypic variation and niche width can be caused by sexual selection or environmental gradients, which should be carefully considered along with competition ... | 2014 | 24107232 |
| incomplete lineage sorting or secondary admixture: disentangling historical divergence from recent gene flow in the vinous-throated parrotbill (paradoxornis webbianus). | although pleistocene glaciations had a major impact on the population genetic patterns of many species in north america and europe, it remains unclear how these climatic fluctuations contributed to species diversification in east asia. one reason for this is the difficulty of distinguishing genetic admixture following secondary contact from incomplete lineage sorting, both of which can generate similar patterns of genetic variation. using a combination of multilocus analyses and coalescent simul ... | 2012 | 23095021 |
| the consequences of winter flock demography for genetic structure and inbreeding risk in vinous-throated parrotbills, paradoxornis webbianus. | the adaptive significance of flocking behaviour has been intensively studied, especially among birds, but the demography and genetic structure of winter flocks is poorly understood, despite their importance for many biological processes. for three successive winters, we studied the demography and genetic structure of winter flocks in a small passerine, the vinous-throated parrotbill paradoxornis webbianus. our objectives were to determine the match between observed demography and the genetic str ... | 2010 | 19812618 |
| fine-scale genetic structure and its consequence in breeding aggregations of a passerine bird. | the pattern of fine-scale genetic structure in a population may reflect current biological processes of the species, such as natal dispersal, the breeding system and demography. we investigated the spatial distribution of nests and fine-scale genetic structure during two breeding seasons in a population of a weakly territorial, flock-living passerine bird, the vinous-throated parrotbill, paradoxornis webbianus. nest distribution was clustered. there were two peaks of egg laying within each breed ... | 2009 | 19486292 |
| responses of cuckoo hosts to alarm signals of different nest intruders in non-nesting areas. | the "call for help" hypothesis proposes that alarm calls produced by a bird can transmit warning information to both conspecific and interspecific neighbors. neighbors who are attracted by social transmission might benefit from knowing about the presence of danger or by gaining information about the presence of predators or brood parasites nearby. brood parasite hosts can distinguish threats from different intruders and exhibit varied responses correspondingly. however, most previous studies hav ... | 2020 | 32212428 |
| standing genetic variation as the predominant source for adaptation of a songbird. | what kind of genetic variation contributes the most to adaptation is a fundamental question in evolutionary biology. by resequencing genomes of 80 individuals, we inferred the origin of genomic variants associated with a complex adaptive syndrome involving multiple quantitative traits, namely, adaptation between high and low altitudes, in the vinous-throated parrotbill (sinosuthora webbiana) in taiwan. by comparing these variants with those in the asian mainland population, we revealed standing ... | 2019 | 30659151 |