| seasonal study of the adrenal gland of some indian avian species. | adrenal glands of eight indian species of birds, namely columba livia, passer domesticus, corvus splendens, acridotheres tristis, acridotheres ginginianus, milvus migrans, francolinus pondicerianus and bubulcus ibis were examined during the sexually active and inactive phases of their annual reproductive cycles. excepting a ginginianus and m. migrans, among members of either sex of the remaining six species the weight of the adrenal gland increases during the period of sexual activity. histologi ... | 1976 | 135472 |
| seasonal changes in a population of menacanthus eurysternus (mallophaga, amblycera) on the common myna acridotheres tristis. | seasonal variations in a population of an amblyceran louse, menacanthus eurysternus, infesting the common myna have been studied. incidence of infestation, lice, index, and population structure of this species have been recorded in different months of the year; reasons for the population fluctuations are discussed. | 1990 | 2074132 |
| hematological changes produced by lindane (gamma-hch) in six species of birds. | hematological changes were studied after oral administration of lindane (gamma-hexachlorocyclohexane) at 5 mg/kg body weight twice in 1 week in 6 species of agriculturally important birds: house sparrow, baya weaver bird, common myna, rose-ringed parakeet, blue rock pigeon and domestic duck. lindane induced anemia in the birds as judged by reduced rbc count, hematocrit and hemoglobin content with corresponding changes in mcv, mch and mchc. bleeding and clotting time were markedly prolonged. sple ... | 1986 | 2424143 |
| influence of splanchnic nerve on reserpine action in avian adrenal medulla. | reserpine at three doses (0.05, 0.2, and 0.8 mg/100 g body wt) has been injected intraperitoneally to seven unilaterally splanchnic denervated avian species, in order to ascertain the neural regulation of its action in avian adrenal medulla. the adrenomedullary catecholamines (ca) were estimated at 24 hr after reserpine injection. the findings revealed that reserpine at high doses caused 66-92% depletion of total ca from both the innervated and the denervated glands in all the species investigat ... | 1989 | 2707578 |
| distribution of mallophaga on the body of acridotheres tristis (aves). | 4 species of mallophaga (2 amblycera, menacanthus eurysternus and myrsidea sp., and 2 ischnocera, brueelia chayanh and sturnidoecus affinis) coexist on the body of common myna, acridotheres tristis. the distribution of eggs, nymphs and adults of these species on the body of host is discussed. the patterns of distribution coincides with their morphological adaptations. | 1989 | 2729646 |
| glycaemic response to prolactin in a wild bird, the common myna (acridotheres tristis). | | 1985 | 4076468 |
| a comparative study of the peroxidases from thyroid glands of pigeon (columba livia domestica) and common myna (acridotheres tristis). | | 1971 | 4400978 |
| role of thyroid in tissue respiration of birds. | thyroidectomy after 1 week, 1 month, and 13 months significantly depressed and low level of l-t4 significantly elevated the oxygen uptake of the liver and skeletal muscle of spotted munia and common myna. a higher dose of l-t4 had no effect on the rate of respiration. a reexamination of the published results on submammalian vertebrates together with those presented here suggests that an uniform pattern of response of skeletal muscle emerges if the values from thyroidectomized animals are compare ... | 1983 | 6840527 |
| haematophagous behaviour of menacanthus eurysternus (mallophaga, amblycera). | haematophagous nature of some mallophagan species is of great concern to the scientists working in the field. such species cause harm to the host directly by reducing vitality and productivity and indirectly by acting as reservoir and transmitter of pathogenic strains of infectious diseases. menacanthus eurysternus infesting common myna acridotheres tristis feeds exclusively on host blood obtained by piercing the quill of pin feathers and by gnawing through the epidermis. as much as 88.56% adult ... | 1983 | 6859624 |
| [comparative analysis of spectral-prosodic characteristics of the human prototype signals and phonation of the common maynah (acridotheres tristis)]. | a comparative study was carried out of the spectral-prosodic characteristics of phoneme "a" (vowel "ya" from russian word "byaka") pronounced by the common maynah and humans (a total of about 50 signals). a phenomenon of mutual express-imitation has been established in the course of dialogue contact between the maynah and female speaker. common similarity and difference features of the acoustic characteristics of the human and bird's signals have been revealed, as well individual similarity feat ... | 2000 | 10881434 |
| prevalence and evolutionary relationships of haematozoan parasites in native versus introduced populations of common myna acridotheres tristis. | the success of introduced species is frequently explained by their escape from natural enemies in the introduced region. we tested the enemy release hypothesis with respect to two well studied blood parasite genera (plasmodium and haemoproteus) in native and six introduced populations of the common myna acridotheres tristis. not all comparisons of introduced populations to the native population were consistent with expectations of the enemy release hypothesis. native populations show greater ove ... | 2006 | 16537130 |
| a complete species-level molecular phylogeny for the "eurasian" starlings (sturnidae: sturnus, acridotheres, and allies): recent diversification in a highly social and dispersive avian group. | we generated the first complete phylogeny of extant taxa in a well-defined clade of 26 starling species that is collectively distributed across eurasia, and which has one species endemic to sub-saharan africa. two species in this group-the european starling sturnus vulgaris and the common myna acridotheres tristis-now occur on continents and islands around the world following human-mediated introductions, and the entire clade is generally notable for being highly social and dispersive, as most o ... | 2008 | 18321732 |
| toxicological effects of diclofenac in four avian species. | the objective of the present study was to investigate the toxico-pathological effects of diclofenac in different avian species including broiler chicks (gallus gallus, 15 days old), pigeons (columba livia, 3 months old), japanese quail (coturnix japonica, 4 weeks old) and mynah (acridotheres tristis, independent young). for each species, five groups each containing 10 birds were maintained and administered diclofenac sodium orally at dose rates of 0, 0.25, 2.5, 10 and 20 mg/kg body weight, respe ... | 2008 | 18568659 |
| haemosporidian infections in captive exotic glossy starling lamprotornis chalybaeus in hong kong. | a greater blue-eared glossy starling lamprotornis chalybaeus ehrenburg from a large flight aviary in hong kong was found on post mortem to be infected with plasmodium octamerium manwell, 1968, plasmodium cf. relictum (grassi et feletti, 1891) and haemoproteus cf. pastoris mello, 1935. descriptions of their morphology are provided as none of the examined parasites fully concord with their type (or neotype) material descriptions. plasmodium octamerium has been recorded in avian hosts from geograph ... | 2008 | 18578162 |
| blood sources of mosquitoes collected from urban and peri-urban environments in eastern australia with species-specific molecular analysis of avian blood meals. | to identify the hosts of mosquitoes collected from urban and peri-urban habitats in eastern australia, 1,180 blood fed mosquitoes representing 15 species were analyzed by enzyme-linked immunosorbent assay and molecular techniques. four common and epidemiologically important species could be classified according to their host-feeding patterns: aedes aegypti was anthropophilic, ae. vigilax was mammalophilic, culex quinquefasciatus was ornithophilic, and cx. annulirostris was opportunistic, readily ... | 2009 | 19861621 |
| alien invasive birds. | a bird species is regarded as alien invasive if it has been introduced, intentionally or accidentally, to a location where it did not previously occur naturally, becomes capable of establishing a breeding population without further intervention by humans, spreads and becomes a pest affecting the environment, the local biodiversity, the economy and/or society, including human health. european starling (sturnus vulgaris), common myna (acridotheres tristis) and red-vented bulbul (pycnonotus cafer) ... | 2010 | 20919578 |
| cryptosporidium spp. in pet birds: genetic diversity and potential public health significance. | to characterize the prevalence and assess the zoonotic transmission burden of cryptosporidium species/genotypes in pet birds in henan, china, 434 fecal samples were acquired from 14 families of birds in pet shops. the overall prevalence of cryptopsoridium was 8.1% (35/434) by the sheather's sugar flotation technique. the cryptosporidium-positive samples were analyzed by dna sequence analysis of the small subunit (ssu) rrna gene. three cryptosporidium species and two genotypes were identified, in ... | 2011 | 21557938 |
| metal contamination in select species of birds in nilgiris district, tamil nadu, india. | variation in metal contamination in six species of birds, namely the cormorant (phalacrocorax carbo), cattle egret (bubulcus ibis), little egret (egretta garzetta), pond heron (ardeola grayii), common myna (acridotheres tristis) and jungle babbler (turdoides striatus) in nilgiris district, tamil nadu, india. the accumulation of heavy metals differed among the species studied. on an average, little egret accumulated high concentrations of copper (53.31 ± 23.19 ppm) followed by cattle egret (16.27 ... | 2011 | 21656294 |
| adrenocortical responses to sex hormonal administration in three avian species: the parakeet psittacula krameri, the quail coturnix cotournix & the common myna acridotheres tristis. | | 2003 | 151665 |
| surveillance potential of non-native hawaiian birds for detection of west nile virus. | west nile virus (wnv) was first detected in north america in 1999. alaska and hawaii (hi) remain the only u.s. states in which transmission of wnv has not been detected. dead bird surveillance has played an important role in the detection of the virus geographically, as well as temporally. in north america, corvids have played a major role in wnv surveillance; however, the only corvid in hi is the endangered hawaiian crow that exists only in captivity, thus precluding the use of this species for ... | 2015 | 26304918 |
| characterization of low pathogenic avian influenza virus subtype h9n2 isolated from free-living mynah birds (acridotheres tristis) in the sultanate of oman. | a low pathogenic avian influenza virus was identified from free-living birds (mynah, acridotheres tristis) of the starling family. virus was isolated by inoculation of homogenized suspension from lung, tracheal, spleen, and cloacal swabs into the allantoic cavity of embryonated chicken eggs. subtype of the isolate was characterized as h9n2 by hemagglutination inhibition test using monospecific chicken antisera to a wide range of influenza reference strain. pathogenicity of the isolate was determ ... | 2015 | 26473686 |
| erratum to: adjusting foraging strategies: a comparison of rural and urban common mynas (acridotheres tristis). | | 2017 | 28093606 |
| adjusting foraging strategies: a comparison of rural and urban common mynas (acridotheres tristis). | establishment in urbanized environments is associated with changes in physiology, behaviour, and problem-solving. we compared the speed of learning in urban and rural female common mynas, acridotheres tristis, using a standard visual discrimination task followed by a reversal learning phase. we also examined how quickly each bird progressed through different stages of learning, including sampling and acquisition within both initial and reversal learning, and persistence following reversal. based ... | 2017 | 27778195 |
| personality and problem-solving in common mynas (acridotheres tristis). | animals show consistent individual differences in behaviour across time and/or contexts. recently, it has been suggested that proactive personality types might also exhibit fast cognitive styles. the speed with which individuals sample environmental cues is one way in which correlations between personality and cognition might arise. here, we measured a collection of behavioural traits (competitiveness, neophobia, neophilia, task-directed motivation and exploration) in common mynas (acridotheres ... | 2017 | 27717852 |
| counting with colours? effect of colours on the numerical abilities of house crows (corvus splendens) and common myna (acridotheres tristis). | we conducted several aviary experiments to investigate the influence of colours in quantity judgments of two species of birds; house crow (corvus splendens) and common myna (acridotheres tristis). different quantity (in seven different food proportions) of mealworms were presented nonsequentially to all birds using artificially coloured red mealworms, for experiment 1, and using artificially coloured green mealworms, for experiment 2. both red and green coloured mealworms have no significant eff ... | 2016 | 27688847 |
| nest-site competition between invasive and native cavity nesting birds and its implication for conservation. | nesting cavities are often a limited resource that multiple species use. there is an ongoing discussion on whether invasive cavity nesting birds restrict the availability of this key limited resource. while the answer to this question has important conservation implications, little experimental work has been done to examine it. here, we aimed to experimentally test whether alien cavity nesting birds affect the occupancy of cavities and the resulting breeding success of native cavity breeders in ... | 2016 | 27341373 |
| dynamic occupancy models for explicit colonization processes. | the dynamic, multi-season occupancy model framework has become a popular tool for modeling open populations with occupancies that change over time through local colonizations and extinctions. however, few versions of the model relate these probabilities to the occupancies of neighboring sites or patches. we present a modeling framework that incorporates this information and is capable of describing a wide variety of spatiotemporal colonization and extinction processes. a key feature of the model ... | 2016 | 27008788 |
| eradication of common mynas acridotheres tristis from denis island, seychelles. | in seychelles, the common myna has been shown to have a negative impact on endangered endemic birds on denis island, interfering with breeding attempts and attacking adult endemic birds at their nests. this stimulated an attempt to eradicate the island's mynas. | 2017 | 26936226 |
| specialist enemies, generalist weapons and the potential spread of exotic pathogens: malaria parasites in a highly invasive bird. | pathogens can influence the success of invaders. the enemy release hypothesis predicts invaders encounter reduced pathogen abundance and diversity, while the novel weapons hypothesis predicts invaders carry novel pathogens that spill over to competitors. we tested these hypotheses using avian malaria (haemosporidian) infections in the invasive myna (acridotheres tristis), which was introduced to southeastern australia from india and was secondarily expanded to the eastern australian coast. mynas ... | 2015 | 26433143 |
| measurement of tear production using the phenol red thread test in the common mynah ( acridotheres tristis ). | to evaluate tear production in the common mynah ( acridotheres tristis ) using the phenol red thread test (prtt) and to make a comparison of measurements with the prtt placed in the fornices of lower and upper eyelids, tear production of both eyes in 22 healthy adult captive mynah birds was evaluated. after positioning of threads in the fornices of upper and lower eyelids, the prtt values of the birds were 17.5 ± 3.1 mm/15 s and 19.2 ± 2.5 mm/15 s, respectively. a significant difference was foun ... | 2015 | 26115216 |
| use of 3d ultrasonography in diagnosing ovarian adenocarcinoma in a common mynah ( acridotheres tristis ). | a 12-year-old female common mynah ( acridotheres tristis ) was examined because of dyspnea and coelomic enlargement. abdominal radiographs revealed hepatomegaly and a coelomic mass of unknown origin. both brightness mode (2-dimensional; 2d) and 3-dimensional (3d) ultrasonography were performed to identify the origin of the mass. ultrasonographic findings distinguished the mass from the liver and revealed high vascularization of the mass and a moderate increase in echogenicity of the liver. three ... | 2015 | 26115215 |
| biomonitoring of heavy metals in feathers of eleven common bird species in urban and rural environments of tiruchirappalli, india. | heavy metals continue to remain as a major environmental concern in spite of emission control measures. in this study, we analyzed the concentrations of heavy metals (fe, cr, mn, ni, cu, zn, and cd) in the feathers of 11 species of birds collected from urban and rural areas of tiruchirappalli, southern india. metal concentrations followed the order: fe > cu > zn > cr > mn > ni > cd. irrespective of sample locations, heavy metals such as fe, cr, ni, zn, and cu were detected in high concentrations ... | 2015 | 25893764 |
| empirical evidence of cold stress induced cell mediated and humoral immune response in common myna (sturnus tristis). | common myna (sturnus tristis) is a bird indigenous to the indian subcontinent that has invaded many parts of the world. at the onset of our investigation, we hypothesized that the immunological profile of myna makes it resistant to harsh/new environmental conditions. in order to test this hypothesis, a number of 40 mynas were caught and divided into two groups, i.e., 7 and 25 °c for 14 days. to determine the effect of cold stress, cell mediated and humoral immune responses were assessed. the mac ... | 2015 | 25663442 |
| preliminary study on avian fauna of the krishna river basin sangli district, western maharashtra, india. | the present study on avifaunal diversity carried out for three years at the krishna river basin, sangli district revealed a total of 126 species of birds belonging to 30 families, of which 91 species were resident, 16 migratory, 12 resident and local migratory and 7 species were resident and migratory. among the migrant birds, rosy starling sturnus roseus was dominant in the study area. commonly recorded resident bird species were, red vented bulbul, jungle crow, house sparrow, common myna, brah ... | 2014 | 25522499 |
| the numerical competency of two bird species (corvus splendens and acridotheres tristis). | we conducted a series of experiments to test the numerical competency of two species of birds, corvus splendens (house crow) and acridotheres tristis (common myna). both species were allowed to choose from seven different groups of mealworms with varying proportions. we considered the birds to have made a correct choice when it selected the food group with the highest number of mealworms. our overall results indicated that the common myna is able to count numbers (161 successful choices out of 2 ... | 2014 | 25210590 |
| common myna roosts are not recruitment centres. | we studied communal roosting in the common myna (acridotheres tristis) in the light of the recruitment centre hypothesis and predation at the roost. the number and sizes of flocks departing from and arriving at focal roosts were recorded over a two year period. we also recorded the sizes and behaviour of foraging flocks. we found that flock sizes of birds departing from roosts at sunrise were larger than those at the feeding site, suggesting that there was no recruitment from the roosts. flocks ... | 2014 | 25122467 |
| using invasion process theory to enhance the understanding and management of introduced species: a case study reconstructing the invasion sequence of the common myna (acridotheres tristis). | research indicates that invasion is a multi-step process, where each stage is contingent on the stage that precedes it. numerous hypotheses addressing the factors that influence each stage of the invasion process have been formulated, but how well does this theory match what occurs in the natural world? we created a general conceptual model for the invasion process based on invasion theory. using a composite 41-year data set, we then reconstructed the invasion sequence of the common myna (acrido ... | 2013 | 23995141 |
| cervical type ab thymoma (mixed) tumour diagnosis in a mynah as a model to study human: clinicohistological, immunohistochemical and cytohistopathological study. | thymoma is a primary mediastinal neoplasm arising from or exhibiting differentiation towards thymic epithelial cells, typically with the presence of non-neoplastic lymphocytes. a 13-year-old male mynah bird (acridotheres tristis) was presented for evaluation of a 2.3 × 1.5 × 1.0 cm mass in the left ventrolateral cervical region. the clinical signs, radiology, cytohistopathology and immunohistochimy findings related to the thymoma are presented. these findings indicated that the tumor was a type ... | 2013 | 23777537 |
| histomorphological and histochemical observations of the common myna (acridotheres tristis) tongue. | common myna tongue was studied histomorphologically and histochemically. four tongues of adult birds were carried out macroscopically and microscopically. the tongue was triangular; the dorsum of the body had median groove. two to three backward directed papillae were located on each side of the body-base junction. a single transverse row of pharyngeal papillae was located behind the laryngeal cleft. the parakeratinized mucosa covered the entire surface of the tongue except clearly keratinized b ... | 2013 | 23738140 |
| does human-induced habitat modification influence the impact of introduced species? a case study on cavity-nesting by the introduced common myna (acridotheres tristis) and two australian native parrots. | introduced species pose a major threat to biodiversity across the globe. understanding the impact of introduced species is critical for effective management. many species around the world are reliant on tree cavities, and competition for these resources can be intense: threatening the survival of native species. through the establishment of 225 nest boxes, we examined the relationship between tree density and the abundance and nesting success of three bird species in canberra, australia. the com ... | 2013 | 23716011 |
| accumulation pattern and distribution of polycyclic aromatic hydrocarbons (pahs) in liver tissues of seven species of birds from ahmedabad, india, during 2005-2007. | concentrations of polycyclic aromatic hydrocarbons (pahs) were measured in liver tissues of seven species of birds collected from ahmedabad, india during 2005-2007. all the samples collected were dead as victims of kite flying. concentrations of ∑pahs in livers of birds were ranged from 110 ± 32.6 ng/g wet wt (1,078 ± 320 lipid wt) in common myna acridotheres tristis to 382 ± 90.1 ng/g (2,388 ± 563 lipid wt) in white-backed vulture. statistically significant (p < 0.05) differences in ∑pahs were ... | 2013 | 23128993 |
| is it benign or is it a pariah? empirical evidence for the impact of the common myna (acridotheres tristis) on australian birds. | there is widespread concern over the impact of introduced species on biodiversity, but the magnitude of these impacts can be variable. understanding the impact of an introduced species is essential for effective management. however, empirical evidence of the impact of an introduced species can be difficult to obtain, especially when the impact is through competition. change in species abundance is often slow and gradual, coinciding with environmental change. as a result, negative impacts on nati ... | 2012 | 22808210 |
| spatial sorting drives morphological variation in the invasive bird, acridotheris tristis. | the speed of range expansion in many invasive species is often accelerating because individuals with stronger dispersal abilities are more likely to be found at the range front. this 'spatial sorting' of strong dispersers will drive the acceleration of range expansion. in this study, we test whether the process of spatial sorting is at work in an invasive bird population (common myna, acridotheris tristis) in south africa. specifically, we sampled individuals across its invasive range and compar ... | 2012 | 22693591 |
| exploring or avoiding novel food resources? the novelty conflict in an invasive bird. | for an animal invading a novel region, the ability to develop new behaviors should facilitate the use of novel food resources and hence increase its survival in the new environment. however, the need to explore new resources may entail costs such as exposing the animal to unfamiliar predators. these two opposing forces result in an exploration-avoidance conflict, which can be expected to interfere with the acquisition of new resources. however, its consequences should be less dramatic in highly ... | 2011 | 21611168 |
| path coefficient analysis of correlation between breeding cycles of the common myna acridotheres tristis (passeriformes: sturnidae) and its phthirapteran ectoparasites. | | 2003 | 14971602 |
| correlative effects of quinidine on ecg pattern and serum cholesterol concentration in acridotheres tristis. | antiarrhythmic drug quinidine, administered daily at the rate of 10 mg/kg for 7 days in a. tristis produced an increasing effect on the amplitude and duration of different waves and intervals. heart rate was decreased from 478.40 to 444.47 beats/min. serum cholesterol level was reduced from 86 to 54.30 mg/100 ml. the data of the effect of quinidine on the ecg pattern and serum cholesterol were analysed and the values of the correlation coefficient and their significance were computed. the values ... | 1992 | 1512025 |
| effect of propranolol on ecg of myna, acridotheres tristis, and goh, varanus bengalensis. | effect of propranolol (1 and 3 mg/kg body wt), a sympathetic blocking agent, on ecg patterns was studied in varanus and acridotheres. ecg was recorded before and after 5 min (immediate), 15 min and in some cases 25 min of drug infusion. all animals responded to propranolol with bradycardia. the effectiveness is dose dependent and it is also associated with the high heart rate both in acridotheres and in varanus. the p-r or p-s interval increased in all cases of varanus after infusion. in acridot ... | 1991 | 1889829 |
| seasonal changes in the population of mallophaga on acridotheres tristis. | 83.41% specimens of common myna were found infested with one to four species of mallophaga, during the year 1984. incidence of infestation and the indices were higher during the summer months and lower during winter months. the reasons of seasonal abundance are also discussed. temperature seems to be one of the factors. the seasonal changes in population were found corresponding to the gonadal cycle of the host. | 1988 | 3245637 |
| thyroid photoperiod and gonadal regression in the common myna acridotheres tristis. | in the common myna, extirpation of the thyroid glands inhibited seasonal development of the testes of birds maintained under normal length days, but full development, similar to sham-operated birds, resulted when maintained under 15l:9d. further, thyroidectomy delayed and reduced the rate of gonadal regression when performed in 15l:9d exposed birds having fully developed testes. the thyroid-gonad relationship exhibited in the common myna is of great adaptive value to the bird, especially in the ... | 1983 | 6654037 |
| light responses of thyroidectomized common myna, acridotheres tristis. | | 1980 | 7439660 |
| role of corticosterone & l-thyroxine in gonadal development of the common myna acridotheres tristis. | | 1980 | 7399573 |
| thyroidectomy and gonadal development in common myna, acidotheres tristis. | | 1979 | 499758 |
| morphological and histochemical observations on the ovarian surface epithelium during the reproductive cycle of crow (corvus splendens) and myna (acridotheres tristis). | a morphological and histochemical study has been made of ovarian surface epithelium during the sexual cycle of seasonally breeding birds: crow (corvus splendens) and common myna (acridotheres tristis). the surface epithelium is composed of a single layer of compactly arranged columnar and flat cells in the quiescent ovary. it develops numerous villi during the breeding season. the formation of villi has been correlated with the proliferation of cells which are subsequently incorporated into the ... | 1979 | 452956 |
| morphological and histochemical observations on the primordial and early growing oocytes of crow (corvus splendens) and myna (acridotheres tristis). | a morphological and histochemical study has been made of the primordial and early growing oocytes in the ovaries of crow (corvus splendens) and common myna (acridotheres tristis). the primordial oocytes in the myna ovary are loosely arranged in groups or nests, whereas in crow they form compact nests surrounded by highly vascularized connective tissue bands or lie in layers beneath the surface epithelium. the primordial oocytes in both the species are surrounded by flat granulosa cells whose num ... | 1979 | 471889 |
| correlative morphological and cytochemical observations on the nucleoli and nuclear bodies during avian oogenesis. | a correlative morphological and cytochemical study has been made of the nucleoli and nuclear bodies in the growing oocytes of the crow (corvus splendens) and common myna (acridotheres tristis). the nucleoli show morphological and cytochemical changes during oocyte growth, which are described in detail. in young oocytes at diplotene stage, two to six nucleoli, which are attached to condensed diplotene chromosomes, show rna, lysine-rich histones and some non-histones, the proteins contain s-s and ... | 1979 | 390907 |
| effects of orchidectomy and male hormone administration on the adrenal of common myna, acridotheres tristis. | when orchidectomized, the adrenals of semi-domestic, adult common myna, acridotheres tritis atrophied. the cortical cord width and cortico-medullary ratio decreased and ascorbic acid and cholesterol contents of the adrenal increased significantly. testosterone, depending upon the dose employed either restored the atrophic adrenals to normal condition or caused further atrophy of the glands of the castrated birds, suggesting a stimulatory effect on the adrenals at low and inhibitory at high dose ... | 1978 | 747378 |
| effects of thyroidectomy and replacement therapy on the adrenal and testis of the bird myna, acridotheres tristis. | thyroidectomy in myna, acridotheres tristis, increased the levels of cholesterol, ascorbic acid and decreased the activity of the adrenal. the size and activity of the testis also decreased following thyroid removal. the weight of the two glands and activity of testis was not affected by 0.25 mg of 1-thyroxine. the chemical and histological changes of the adrenal were however reversed. it is suggested that thyroid deficiency leads to reduced output of the trophic hormones from the adenohypophysi ... | 2016 | 1030933 |
| histomorphology and proteolytic activity in the gastric apparatus of frugivorous, carnivorous and omnivorous species of birds. | the histomorphology of the gastric apparatus, the pepsin level and the optimum ph for pepsin were investigated in psittacula krameri (frugivore), lanius schach (carnivore) and acridotheres tristis (omnivore) species of birds. the proventricular glands were found to be made up of oxynticopeptic cells. the lobules of the oxynticopeptic cells are polyhedral; they are the largest in p. krameri, and the smallest in a. tristis. however, their greater number in a. tristis enables a higher secretion of ... | 1976 | 16419 |
| on two species of eumegacetes (trematoda: lecithodendriidae) from the common myna, acridotheres tristis (linaeus) in india with a note on the systematic position of the genus. | | 1969 | 5408570 |
| tracking changing environments: innovators are fast, but not flexible learners. | behavioural innovations are increasingly thought to provide a rich source of phenotypic plasticity and evolutionary change. innovation propensity shows substantial variation across avian taxa and provides an adaptive mechanism by which behaviour is flexibly adjusted to changing environmental conditions. here, we tested for the first time the prediction that inter-individual variation in innovation propensity is equally a measure of behavioural flexibility. we used indian mynas, sturnus tristis, ... | 2013 | 24391981 |
| distribution pattern of phthirapterans infesting certain common indian birds. | the prevalence and frequency distribution patterns of 10 phthirapteran species infesting house sparrows, indian parakeets, common mynas, and white breasted kingfishers were recorded in the district of rampur, india, during 2004-05. the sample mean abundances, mean intensities, range of infestations, variance to mean ratios, values of the exponent of the negative binomial distribution, and the indices of discrepancy were also computed. frequency distribution patterns of all phthirapteran species ... | 2007 | 17918388 |
| rapid genetic differentiation and founder effect in colonizing populations of common mynas (acridotheres tristis). | populations of common mynas introduced to australia, new zealand, fiji, hawaii, and south africa from india during the last century were compared genetically with the extant native population using isozyme electrophoresis of 39 presumptive loci. average heterozygosity, mean number of alleles/locus, and the percentage of polymorphic loci are lower in the introduced populations, and the 18% loss of alleles involves only alleles that are rare in the native population. the native population is only ... | 1987 | 28563814 |
| molecular and morphological description of isospora sp. from the common mynah (acridotheres tristis) and a preliminary survey of two anticoccidial drugs in natural infection. | coccidian parasites, especially isospora, are prevalent parasites in passeriformes. isosporan oocysts from common mynahs (acridotheres tristis) are incompletely described. detailed knowledge on biology, prevalence, pathogenesis and treatment of avian isosporiasis is scant. in this study, isosporan oocysts isolated from common mynahs were morphologically and molecularly characterized. the medication efficiencies of diclazuril and sulfadiazine-trimethoprim in isosporiasis in naturally infected myn ... | 2018 | 29115153 |
| the invasive red-vented bulbul (pycnonotus cafer) outcompetes native birds in a tropical biodiversity hotspot. | invasive alien species are a major cause of biodiversity loss globally, but especially on islands where high species richness and levels of endemism accentuate their impacts. the red vented bulbul (pycnonotus cafer), a tropical passerine bird that has been introduced widely across locations of high conservation value, is considered an extreme pest. it is currently expanding its range in new caledonia, one of the world's biodiversity hotspots. decisive recommendations on management strategies are ... | 2018 | 29390027 |
| characterization of the complete mitochondrial genome of sphaerirostris picae (rudolphi, 1819) (acanthocephala: centrorhynchidae), representative of the genus sphaerirostris. | the centrorhynchidae (acanthocephala: palaeacanthocephala) is a cosmopolitan family commonly found in various avian and mammalian hosts. within centrorhynchidae, species of the genus sphaerirostris golvan, 1956 are usually parasitic in the digestive tract of various passerine birds. in the present study, adult specimens of sphaerirostris picae (rudolphi, 1819), the type species of this genus, were recovered from the small intestine of acridotheres tristis (sturnidae) and dendrocitta vagabunda (c ... | 2019 | 31183599 |
| isolation and characterization of novel trichomonas gallinae ribotypes infecting domestic and wild birds in riyadh, saudi arabia. | trichomonas gallinae, a single-celled protozoan parasite, is a causative agent of the disease trichomonosis, which is distributed worldwide and has recently been highlighted as a pandemic threat to several wild bird species. the aim of this study was to determine the prevalence and genotypic diversity of t. gallinae in riyadh, saudi arabia. for this purpose, 273 oral swab samples from different bird species (feral pigeon columba livia, common mynah acridotheres tristis, chicken gallus gallus dom ... | 2020 | 32550612 |
| parasitological and molecular survey of scattered parasitism by trichomonads in some avian species in iran. | outbreaks of avian trichomonosis are being reported worldwide; meanwhile, the genetic and virulence variations are under investigation. in this study, the occurrence and genetic variability of oral or faecal trichomonads among various avian species were investigated. samples obtained from either the oropharyngeal cavity, crop/oesophagus, droppings/cloaca, or conjunctival swabs of avian species were inspected for flagellates. phylogenetic analysis of partial its1-5.8s rrna-its2 sequences from sel ... | 2020 | 31486682 |
| wildlife presence and interactions with chickens on australian commercial chicken farms assessed by camera traps. | the types of wildlife and the frequency of their visits to commercial chicken farms in australia were assessed using infrared and motion-sensing camera traps. cameras were set up on 14 free-range layer farms, three cage layer farms, two barn layer farms, five non-free-range meat chicken farms, and six free-range meat chicken farms in the sydney basin region and south east queensland. wildlife visits were found on every farm type and were most frequent on cage layer farms (73%), followed by free- ... | 2018 | 29620454 |
| birdcall lures improve passerine mist-net captures at a sub-tropical african savanna. | field research techniques are constantly evolving to meet the needs of the scientific community. there is a growing need for field biology studies to shift towards increasing efficiency and quality of results while simultaneously decreasing cost in both the researcher's time and resources. i tested the efficacy of using multiple recorded birdcall lures (n = 172 species) to improve mist-net captures at a subtropical african savanna setting. capture success was compared between passive and birdcal ... | 2018 | 29928048 |
| the effect of local species composition on the distribution of an avian invader. | estimating the potential distribution of invasive species has been primarily achieved by employing species distribution models (sdm). recently introduced joint species distribution models (jsdm) that include species interactions are expected to improve model output. here we compare the predictive ability of sdm and jsdm by modelling the distribution of one of the most prolific avian invaders in the world, the common myna (acridotheres tristis), in a recent introduction in israel. our results ind ... | 2019 | 31676880 |
| an investigation into the accumulation of air borne trace metals in the lungs of common myna acridotheres tristis and bank myna acridotheres ginginianus captured from urban and semi urban areas of lahore and pattoki, pakistan. | with increasing urbanization and industrialization, clean air is becoming a scarce resource. during the present investigation, concentrations of metals (pb, ni and zn) in the atmosphere and their subsequent deposition in the lungs of two common avian species, common myna, acridotheres tristis (n = 30) and bank myna, a. ginginianus (n = 20), captured from urban areas of lahore city and semi-urban areas of pattoki city 80 km away from main city of lahore were determined. the obtained results were ... | 2019 | 31555848 |
| plasma biochemical and lipid panel reference intervals in common mynahs (acridotheres tristis). | mynahs are popular pet and aviary birds. captive mynahs are prone to metabolic disorders, such as obesity, hepatic lipidosis, and atherosclerosis, and determination of a plasma biochemical reference interval is essential for diagnosis, treatment, and monitoring of these disorders. to establish reference intervals for the lipoprotein panel and plasma activity of liver enzymes in common mynahs (acridotheres tristis), glucose, cholesterol, triglycerides, high and low density lipoprotein concentrati ... | 2019 | 31124607 |
| endemic infection of the common mynah acridotheres tristis with trichomonas gallinae the agent of avian trichomonosis. | avian trichomonosis is an architypal disease of wild columbids and those birds that predate them. increasingly though, it has been reported in passerines; a recent and ongoing epidemic in the chaffinches and greenfinches of europe and outbreaks amongst house finches, american goldfinches and purple finches in north america. the parasite, trichomonas gallinae, causes lesions in the upper respiratory tract which can cause mortality associated with dehydration and emaciation. this paper reports for ... | 2018 | 29681249 |