| [comparison of thermogenic character of liver and muscle in chinese bulbul pycnonotus sinensis between summer and winter]. | acclimatization to winter conditions is an essential prerequisite for survival of small passerines. seasonal changes in a bird's physiology and behavior are considered to be part of an adaptive strategy for survival and reproductive success. changes in photoperiod, ambient temperature and food availability trigger seasonal acclimatization in physiology and behavior of many birds. in the present study, seasonal adjustments in several physiological, hormonal, and biochemical markers were examined ... | 2010 | 20672422 |
| [avian diversity and bird strike risk at fuyang airport]. | from june 2008 to january 2010, a survey of avian communities was conducted in five habitats (grassland, farmland, town, wetland, and woodland) at fuyang airport and its surrounding areas, with the diversity indices in different seasons and different habitats analyzed. a total of 122 avian species belonging to 15 orders and 40 families were recorded. at fuyang airport, the avian species number was significantly higher in summer and autumn than in winter and spring, the avian density was the high ... | 2011 | 22007473 |
| brominated flame retardants in three terrestrial passerine birds from south china: geographical pattern and implication for potential sources. | polybrominated diphenyl ethers (pbdes), decabromodiphenyl ethane (dbdpe), polybrominated biphenyls (pbbs) and pentabromotoluene (pbt) were investigated in light-vented bulbul (lvb), long-tailed shrike (lts) and oriental magpie-robin (omr) collected from seven sampling sites in south china. ∑pbdes, dbdpe, pbb 153, and pbt levels ranged from 35 to 15,000, no detected (nd)-130, nd-6800, and nd-6.8 ng/g lipid weight, respectively. positive correlations were found between δ(15)n values and brominated ... | 2011 | 22243889 |
| high-throughput avian molecular sexing by sybr green-based real-time pcr combined with melting curve analysis. | combination of chd (chromo-helicase-dna binding protein)-specific polymerase chain reaction (pcr) with electrophoresis (pcr/electrophoresis) is the most common avian molecular sexing technique but it is lab-intensive and gel-required. gender determination often fails when the difference in length between the pcr products of chd-z and chd-w genes is too short to be resolved. | 2008 | 18269737 |
| contaminants of legacy and emerging concern in terrestrial passerines from a nature reserve in south china: residue levels and inter-species differences in the accumulation. | knowledge is limited about the bioaccumulation of persistent halogenated compounds (phcs) in terrestrial wildlife. several phcs, including dichlorodiphenyltrichloroethane (ddt) and its metabolites (designated as ddts), polychlorinated biphenyls (pcbs), polybrominated diphenyl ethers (pbdes), decabromodiphenylethane (dbdpe) and 1,2-bis(2,4,6-tribromophenoxy) ethane (btbpe), and stable isotopes (δ(15)n and δ(13)c) were analyzed in the muscle of four terrestrial passerines, parus major, copsychus s ... | 2015 | 25841212 |
| accumulation of dechlorane plus flame retardant in terrestrial passerines from a nature reserve in south china: the influences of biological and chemical variables. | although a number of studies have addressed the bioaccumulation of dechlorane plus (dp) flame retardant in wildlife, few data are available on terrestrial organisms. this study examined the presence of dp isomers in the muscle tissue of seven terrestrial resident passerine species, i.e., the great tit (parus major), the oriental magpie-robin (copsychus saularis), the red-whiskered bulbul (pycnonotus jocosus), the light-vented bulbul (pycnonotus sinensis), the streak-breasted scimitar babbler (po ... | 2015 | 25666277 |
| species- and tissue-specific accumulation of dechlorane plus in three terrestrial passerine bird species from the pearl river delta, south china. | little data is available on the bioaccumulation of dechlorane plus (dp) in terrestrial organisms. three terrestrial passerine bird species, light-vented bulbul, long-tailed shrike, and oriental magpie-robin, were collected from rural and urban sites in the pearl river delta to analyze for the presence of dp and its dechlorinated products in muscle and liver tissues. the relationships between trophic level and concentration and isomeric composition of dp in birds were also investigated based on s ... | 2012 | 22727895 |
| effect of frugivorous birds on the establishment of a naturally regenerating population of chinese yew in ex situ conservation. | the chinese yew (taxus chinensis) is catalogued as an endangered species in china because of the small size and senescent status of most populations. its lack of natural regeneration is the most important reason for its endangered status. we investigated the regeneration of an ex-situ conservation population, which was introduced into the nanjing botanical garden memorial sun yat-sen in the 1950s, and evaluated the role of frugivorous birds on the establishment of this regenerating population. t ... | 2008 | 21396068 |
| generalist passerine pollination of a winter-flowering fruit tree in central china. | winter-flowering plants outside the tropics may experience a shortage of pollinator service, given that insect activity is largely limited by low temperature. birds can be alternative pollinators for these plants, but experimental evidence for the pollination role of birds in winter-flowering plants is scarce. | 2012 | 22112440 |
| temperature and photoperiod as environmental cues affect body mass and thermoregulation in chinese bulbuls, pycnonotus sinensis. | seasonal changes in temperature and photoperiod are important environmental cues used by small birds to adjust their body mass (mb) and thermogenesis. however, the relative importance of these cues with respect to seasonal adjustments in mb and thermogenesis is difficult to distinguish. in particular, the effects of temperature and photoperiod on energy metabolism and thermoregulation are not well known in many passerines. to address this problem, we measured the effects of temperature and photo ... | 2017 | 28082615 |
| dispersal of invasive phytolacca americana seeds by birds in an urban garden in china. | although seed dispersal is a key process determining the regeneration and spread of invasive plant populations, few studies have explicitly addressed the link between dispersal vector behavior and seedling recruitment to gain insight into the invasion process within an urban garden context. we evaluated the role of bird vectors in the dispersal of pokeweed (phytolacca americana), a north american herb that is invasive in urban gardens in china. fruiting p. americana attracted both generalist and ... | 2017 | 27265341 |
| effect of food restriction on the energy metabolism of the chinese bulbul (pycnonotus sinensis). | food resources play an important role in the regulation of animals' physiology and behavior. we investigated the effect of short-term food restriction on metabolic thermogenesis of chinese bulbuls (pycnonotus sinensis) by measuring changes in body mass, body fat, basic metabolic rate (bmr), and organ mass of wild-caught chinese bulbuls from wenzhou, china. short-term food restriction induced a significant decrease in body mass and body fat but body mass returned to normal levels soon after food ... | 2015 | 25855226 |
| pcbs and ddts in light-vented bulbuls from guangdong province, south china: levels, geographical pattern and risk assessment. | thirty-two light-vented bulbuls (pycnonotus sinensis) were collected from six sampling sites in guangdong province, south china to investigate the geographical variation on the occurrence of polychlorinated biphenyls (pcbs), dichlorodiphenyltrichloroethane and its metabolites (ddts). concentrations of pcbs and ddts in the pectoral muscle of light-vented bulbul ranged from 140 to 73,000 ng/g lipid weight (lw) and 12 to 4600 ng/g lw, respectively. pcb concentrations were significantly higher in bi ... | 2014 | 24907616 |
| seasonal phenotypic flexibility of body mass, organ masses, and tissue oxidative capacity and their relationship to resting metabolic rate in chinese bulbuls. | survival of small birds in fluctuating environments is facilitated by seasonal metabolic and morphological flexibility. chinese bulbuls pycnonotus sinensis show winter increases in resting metabolic rate (rmr), nutritional organ masses, and liver and muscle cellular aerobic capacity relative to summer. in this study, we build on these findings from previous studies by measuring seasonal adjustments in body mass (mb), rmr, nutritional and exercise organ masses, and several physiological, biochemi ... | 2014 | 24769707 |
| complete mitochondrial genome of a light-vented bulbul subspecies, pycnonotus sinensis hainanus (passeriformes: pycnonotidae). | in this study, we present the complete mitochondrial genome of p. s. hainanus, which is spread over hainan island, southern china and northern vietnam, containing 13 protein-coding genes (pcgs), 22 transfer rna (trna) genes, 2 ribosomal rna genes (srrna and lrrna) and 2 extensive heteroplasmic control regions. all protein-coding, rrna genes have more than 99.0% nucleotide sequence similarity with the previously reported individual of p. s. formosae, except for cox3 and crs. notably, we found tha ... | 2016 | 24617482 |
| effects of temperature acclimation on body mass and energy budget in the chinese bulbul pycnonotus sinensis. | chinese bulbuls (pycnonotus sinensis) are small passerine birds that inhabit areas of central, southern and eastern china. previous observations suggest that free-living individuals of this species may change their food intake in response to seasonal changes in ambient temperature. in the present study, we randomly assigned chinese bulbuls to either a 30℃ or 10℃ group, and measured their body mass (bm), body temperature, gross energy intake (gei), digestible energy intake (dei), and the length a ... | 2014 | 24470452 |
| species-specific accumulation of halogenated flame retardants in eggs of terrestrial birds from an ecological station in the pearl river delta, south china. | little information is available on the bioaccumulation of halogenated flame retardants (hfrs) in terrestrial ecosystem. eggs of light-vented bulbul, yellow-bellied prinia, plain prinia, and dark green white-eye were collected from an ecological station in the pearl river delta, south china to investigate the occurrence of polybrominated diphenyl ethers (pbdes) and several alternative hfrs, including decabromodiphenyl ethane (dbdpe), dechlorane plus (dp), hexabromobenzene (hbb), pentabromoethylbe ... | 2014 | 24206837 |
| an empirical comparison of character-based and coalescent-based approaches to species delimitation in a young avian complex. | the process of discovering species is a fundamental responsibility of systematics. recently, there has been a growing interest in coalescent-based methods of species delimitation aimed at objectively identifying species early in the divergence process. however, few empirical studies have compared these new methods with character-based approaches for discovering species. in this study, we applied both a character-based and a coalescent-based approaches to delimit species in a closely related avia ... | 2013 | 24073650 |
| [breeding ecology of chinese bulbul in the urban environment of hangzhou, china]. | the chinese bulbul, pycnonotus sinensis, is one of the most abundant and widely distributed birds of south china, settling even in dense urban areas. from march-july 2012, we surveyed the chinese bulbul in the urban environment of hangzhou, china, to gain a clearer perspective on their breeding ecology. totally, 117 nests were found, mainly on the trees of osmanthus fragrans (84.6%, n=117) in residential areas,street tree strips, and green belt. our results include several noteworthy observation ... | 2013 | 23775993 |
| recent northward range expansion promotes song evolution in a passerine bird, the light-vented bulbul. | in common with human speech, song is culturally inherited in oscine passerine birds ('songbirds'). intraspecific divergence in birdsong, such as development of local dialects, might be an important early step in the speciation process. it is therefore vital to understand how songs diverge, especially in founding populations. the northward expansion of the light-vented bulbul pycnonotus sinensis (j. f. gmelin, 1789) into north china in the last 30 years provides an excellent opportunity to study ... | 2013 | 23438018 |
| lineages differentiation and population structure of the light-vented bulbul pycnonotus sinensis in china based on mitochondrial dna and microsatellite analysis. | the light-vented bulbul pycnonotus sinensis is a small resident passerine that is found widely in central and south china, north vietnam, and some east asian islands, including hainan, taiwan and the ryukyu islands. its subspecies status has been under considerable debate. a total of 10 subspecies have been proposed, but only 4 are widely recognized, including 1 continental taxon, p. s. sinensis, and 3 insular subspecies: p. s. hainanus, p. s. formosae and p. s. orii. two mitochondrial dna genes ... | 2011 | 22182330 |
| arsenic concentrations and speciation in wild birds from an abandoned realgar mine in china. | birds are at a higher level in the food chain; however, the potential bioaccumulation and biotransformation of arsenic (as) in birds in as mines has rarely been studied. in this study, four passerine bird species (tree sparrow [passer montanus], light-vented bulbul [pycnonotus sinensis], garrulax canorus [leucodioptron canorus], and magpie [pica pica]) were collected from an abandoned as mine in china. the highest recorded as concentrations were 4.95 mg/kg and 51.65 mg/kg in muscles and feathers ... | 2018 | 29175405 |
| nest site selection for five common birds and their coexistence in an urban habitat. | many species of birds gradually adapt to urbanization and colonize cities successfully. however, their nest site selection and competitive relationship in an urban community remain little known. understanding the impact of urbanization on birds and the competitive relationship has important implications for the conservation and management of wildlife in urban ecosystems. here, we undertook a systematic study to quantify nests in all species of birds in an urbanizing area of nanchang, china. a to ... | 2019 | 31302540 |
| [effects of temperature and photoperiod on body mass, energy budget and digestive tract morphology in pycnonotus sinensis.] | temperature and photoperiod are proximate environmental factors that have an important influence on the morphological, physiological and behavioral adjustments animals performance du-ring seasonal acclimatization. in this study, the effects of temperature and photoperiod on phenotypic flexibility in body mass, energy budget and digestive tract morphology in the chinese bulbul (pycnonotus sinensis) were examined, and the relationship between energy budget and digestive tract morphology was analyz ... | 2016 | 29737705 |