| helminths of california quail (callipepla californica) and mountain quail (oreortyx pictus) in western oregon. | eighty california quail (callipepla californica), collected from the e. e. wilson wildlife area near monmouth, oregon (usa) during a 22 mo period, were examined for gastrointestinal helminths. eight birds were infected with three species of nematodes, heterakis isolonche, dispharynx nasuta, and capillaria sp., and two species of cestodes, rhabdometra odiosa and davainea sp. except for d. nasuta, prevalence did not exceed 5% despite mesic conditions in the collection area. two mountain quail (ore ... | 1989 | 2761017 |
| effects of pelletized anticoagulant rodenticides on california quail. | a moribund, emaciated california quail (callipepla californica) that was found in an orchard in the state of washington had an impacted crop and gizzard. pellets containing the anticoagulant chlorophacinone (rozol, ro) were in the crop; the gizzard contents consisted of a pink mass of paraffin that was selectively accumulated from the paraffinized pellets. the plasma prothrombin time of 28 sec was near that determined for control quail. the signs of ro intoxication seen in the moribund wild quai ... | 1985 | 4078974 |
| transmission of haemoproteus lophortyx o'roke of the california quail by hippoboscid flies of the species stilbometopa impressa (bigot) and lynchia hirsuta ferris. | | 1955 | 13262075 |
| first record of immature stages of amblyomma tigrinum (acari: ixodidae) on wild birds in chile. | for the first time, larvae and nymphs of amblyomma tigrinum ticks were found on three species of wild birds (zenaida auriculata, callipepla californica and nothoprocta perdicaria) in chile. a significant higher number of a. tigrinum was found on fledglings of z. auriculata and n. perdicaria than on adults of these species of birds. a significant higher number was also observed on n. perdicaria living in non-irrigated areas as compared with irrigated areas. infestation levels were 6.5, 6.3 and 10 ... | 2004 | 15285147 |
| avian host and mosquito (diptera: culicidae) vector competence determine the efficiency of west nile and st. louis encephalitis virus transmission. | the ability of the invading ny99 strain of west nile virus (wnv) to elicit an elevated viremia response in california passerine birds was critical for the effective infection of culex mosquitoes. of the bird species tested, western scrub jays, aphelocoma coerulescens, produced the highest viremia response, followed by house finches, carpodacus mexicanus, and house sparrows, passer domesticus. most likely, few mourning, zenaidura macroura, or common ground, columbina passerine, doves and no calif ... | 2005 | 15962789 |
| role of california (callipepla californica) and gambel's (callipepla gambelii) quail in the ecology of mosquito-borne encephalitis viruses in california, usa. | gambel's and california quail were infected repeatedly whenever western equine encephalomyelitis virus (weev), st. louis encephalitis virus (slev), and (wnv) west nile virus were active during summer in california. the timing of virus appearance and quail infection coincided well with the appearance of chicks in nature, leading us to hypothesize that large coveys containing these non-immune birds could be important in focal virus amplification in rural settings. however, experimental infection s ... | 2006 | 16989564 |
| repeated west nile virus epidemic transmission in kern county, california, 2004-2007. | west nile virus (wnv) has remained epidemic in kern county, ca, since its introduction in 2004 through 2007 when the human case annual incidence increased from 6-8 to 17 per 100,000, respectively. the 2007 increase in human infection was associated with contradicting surveillance indicators, including severe drought, warm spring but cool summer temperature anomalies, decreased rural and urban mosquito abundance but increased early season infection in urban culex quinquefasciatus say, moderate av ... | 2009 | 19198528 |
| comparative thermostability of west nile, st. louis encephalitis, and western equine encephalomyelitis viruses during heat inactivation for serologic diagnostics. | during the monitoring of arbovirus seroprevalence in wild birds collected in california, we inadvertently made two isolates of western equine encephalomyelitis virus (weev) from california quail sera being tested by plaque reduction neutralization assay for antibodies against st louis encephalitis (slev) and west nile (wnv) viruses despite heating the sera at 56 degrees c for 30 minutes. these data prompted us to examine the thermostability of these viruses during heat treatment. the flaviviruse ... | 2009 | 19407138 |
| surveys for antibodies against mosquitoborne encephalitis viruses in california birds, 1996-2013. | from 1996 through 2013, 54,546 individual birds comprising 152 species and 7 orders were banded, bled, and released at four study areas within california, from which 28,388 additional serum samples were collected at one or more recapture encounters. of these, 142, 99, and 1929 birds from 41 species were positive for neutralizing antibodies against western equine encephalomyelitis virus (weev), st. louis encephalitis virus (slev), or west nile virus (wnv) at initial capture or recapture, respecti ... | 2016 | 26974395 |
| culicoides bottimeri as a vector of haemoproteus lophortyx to quail in california, usa. | arthropod sampling via periodic direct bird examination and regular light trapping was conducted between june 2000 and october 2002 to survey for potential vectors of haemoproteus lophortyx to nonnative, captive-raised bobwhite quail (colinus virginianus) in northern california, usa. examination of individual bobwhite quail (from 5 weeks of age through adult, total n=76) was conducted on several dates during the transmission period (june-october). no ectoparasites, including hippoboscid flies (r ... | 2006 | 16716520 |
| karyotypic evolution in the galliformes: an examination of the process of karyotypic evolution by comparison of the molecular cytogenetic findings with the molecular phylogeny. | to define the process of karyotypic evolution in the galliformes on a molecular basis, we conducted genome-wide comparative chromosome painting for eight species, i.e. silver pheasant (lophura nycthemera), lady amherst's pheasant (chrysolophus amherstiae), ring-necked pheasant (phasianus colchicus), turkey (meleagris gallopavo), western capercaillie (tetrao urogallus), chinese bamboo-partridge (bambusicola thoracica) and common peafowl (pavo cristatus) of the phasianidae, and plain chachalaca (o ... | 2004 | 15218250 |
| a comparative karyological study of the blue-breasted quail (coturnix chinensis, phasianidae) and california quail (callipepla californica, odontophoridae). | we conducted comparative chromosome painting and chromosome mapping with chicken dna probes against the blue-breasted quail (coturnix chinensis, cch) and california quail (callipepla californica, cca), which are classified into the old world quail and the new world quail, respectively. each chicken probe of chromosomes 1-9 and z painted a pair of chromosomes in the blue-breasted quail. in california quail, chicken chromosome 2 probe painted chromosomes 3 and 6, and chicken chromosome 4 probe pai ... | 2004 | 15218246 |
| haemoproteus lophortyx infection in bobwhite quail. | this report chronicles recurring outbreaks of haemoproteus lophortyx infection in captive bobwhite quail. clinically, the signs of infection included reluctance to move, ruffled appearance, prostration, and death. these signs were associated with parasitemia, anemia, and the presence of large megaloschizonts in skeletal muscles, particularly those of the thighs and back. the average cumulative mortality for flocks experiencing outbreaks was over 20%. in a typical outbreak, mortality rose when th ... | 2002 | 11922345 |
| amino acid sequences of hemoglobin from guinea fowl (numida meleagri) and california quail (lophortyx californica) with phylogenetic analysis of major groups of galliformes. | we determined the complete amino acid sequences of the hemoglobin of two species, guinea fowl and california quail, in galliformes from intact globin chain and chemical cleavage fragments in order to analyze the molecular evolution of hemoglobin for the classification of galliformes. galliformes have two types of hemoglobin components, hba and hbd, which consist of identical beta chain and different alpha chains. the sequences are similar to globin chains of galliformes reported previously. thes ... | 2000 | 11195970 |
| patterns of avian seroprevalence to western equine encephalomyelitis and saint louis encephalitis viruses in california, usa. | temporal and spatial changes in the enzootic activity of western equine encephalomyelitis (wee) and st. louis encephalitis (sle) viruses were monitored at representative wetland study sites in the coachella, san joaquin, and sacramento valleys of california from 1996 to 1998 using three methods: (1) virus isolation from pools of 50 host-seeking culex tarsalis coquillett females, (2) seroconversions in flocks of 10 sentinel chickens, and (3) seroprevalence in wild birds collected by mist nets and ... | 2000 | 10916291 |
| the coccidia of quail in the united states. | intestinal contents from 12 scaled quail (callipepla squamata), 10 bobwhite quail (colinus virginianus), 20 harlequin quail (cyrtonyx montezumae), 35 california quail (lophortyx californicus), 15 gambel's quail (lophortyx gambelii), and 29 mountain quail (oreortyx pictus) were examined for coccidian oocysts. only 18 (14.9%) of 121 birds had coccidian oocysts in their feces at the time of collection; these included 9 l. californicus and 9 o. pictus. four eimerians and an isosporan were found in t ... | 1981 | 7310946 |
| hormonal control of incubation patch development in the california quail lophortyx californicus. | | 1969 | 5804508 |
| effects of vitamin a deficiency on the pituitary-gonad axis of the california quail, lophortyx californicus. | | 1971 | 5101842 |
| phytoestrogens: adverse effects on reproduction in california quail. | phytoestrogens, largely formononetin and genistein, are produced in the leaves of stunted desert annuals in a dry year. when ingested by california quail, these compounds apparently inhibit reproduction and prevent the production of young that will not have adequate food. in a wet year, forbs grow vigorously and phytoestrogenic substances are largely absent. quail then breed prolifically and the abundant seed crop carries the enlarged population through the winter. | 1976 | 1246602 |
| avian pox in california quail from oregon. | california quail (lophortyx californicus) from several locations in oregon were examined seasonally between fall 1975 and summer 1978 for avian pox. pox lesions were present on 66 of 256 (26%) birds from the e.e. wilson wildlife area. none of the remaining 41 birds from other areas was infected. rates of infection of males and females were equal; juveniles had a slightly, but not significantly, higher prevalence of pox than did adults. | 1979 | 228089 |
| differential prevalence of avian pox in adult and immature california quail. | | 1986 | 2845157 |
| dispharynx nasuta (nematoda) in california quail (callipepla californica) in western oregon. | seventy-six california quail (callipepla californica) were collected during a 22-mo period from the e. e. wilson wildlife area near monmouth, oregon. dispharynx nasuta occurred in 38% of the birds with a mean intensity of 4.9 +/- 5.1. in one of 2 yr, host age was significantly associated with prevalence, with immature males showing the highest prevalence (73%). although c. californica has been the subject of several parasitological surveys, this is the first record of d. nasuta in this host. | 1988 | 3411717 |
| prevalence of poxvirus in a population of california quail from oregon, 1975-1987. | prevalences of poxvirus in a population of california quail (callipepla californica) at the e. e. wilson wildlife area, oregon, were determined from 1982 through 1987 and compared with previously published results on prevalences in this population from 1975 to 1979. poxvirus was present in 19 of 89 quail collected. prevalences ranged from 6% for immature females to 41% for immature males. prevalences were lowest during summer and fall and highest in winter and spring. differences in the seasonal ... | 1988 | 3193573 |
| how a hybrid zone is maintained: behavioral mechanisms of interbreeding between california and gambel's quail (callipepla californica and c. gambelii). | hybridizing california and gambel's quail (callipepla californica and c. gambelii) are unlike many hybridizing avian species in that pairing primarily occurs within a flock, or covey, that is composed of several families. coveys in the area of sympatry contain mostly hybrid individuals, relative to parental types. i tested whether individuals perceive covey mates as a single species and whether pairing within the covey causes inbreeding and a loss of reproductive success. individuals discriminat ... | 2003 | 14628928 |
| gene flow across a climatic barrier between hybridizing avian species, california and gambel's quail (callipepla californica and c. gambelii). | allopatric species commonly interbreed in a restricted margin between their ranges. the particular factors that permit interbreeding between species determine the extent of hybridization and its significance for evolution and conservation. using california quail and gambel's quail (callipepla californica and c. gambelii) that naturally hybridize in a narrow region between relatively mesic and xeric environments, i assessed the exchange of genetic and phenotypic traits in relation to vegetative a ... | 2004 | 15212391 |
| sex-dependent species discrimination in auditory forebrain of naturally hybridizing birds. | pairs of individuals breed together only if they recognize each other as the same species, but the process of recognizing conspecifics can depend on flexible criteria even when species-specific signals are innate and fixed. this study examines species recognition in naturally hybridizing sister species, california and gambel's quail (callipepla californica and callipepla gambelii), that have vocalizations which are not learned. specifically, this study tests whether being raised in a vocalizing ... | 2009 | 19996584 |
| chromosome size-correlated and chromosome size-uncorrelated homogenization of centromeric repetitive sequences in new world quails. | many families of centromeric repetitive dna sequences isolated from struthioniformes, galliformes, falconiformes, and passeriformes are localized primarily to microchromosomes. however, it is unclear whether chromosome size-correlated homogenization is a common characteristic of centromeric repetitive sequences in aves. new world and old world quails have the typical avian karyotype comprising chromosomes of two distinct sizes, and c-positive heterochromatin is distributed in centromeric regions ... | 2014 | 24532185 |
| fatal systemic toxoplasmosis in valley quail (callipepla californica). | an adult, captive raised male valley quail (callipepla californica) acquired by a southern brazilian aviary suddenly showed severe apathy, dyspnea and diarrhea, and died 18 hours after the onset of illness. at necropsy, pale muscles and whitish areas in the heart, splenomegaly, hepatomegaly, and consolidated red lungs were observed. histological findings were mainly mononuclear inflammation with necrosis of liver, heart, spleen, bone marrow and lung. there were large numbers of toxoplasma gondii ... | 2015 | 26101744 |
| amino acid sequence of california quail lysozyme. effect of evolutionary substitutions on the antigenic structure of lysozyme. | to examine the effect of amino acid substitutions in lysozyme on the binding of antibodies to lysozyme, we purified lysozyme from the egg whites of california quail and gambel quail. tryptic peptides were isolated from digests of the reduced and carboxymethylated lysozymes and subjected to quantitative analysis of their amino acid compositions. the two proteins were identical by this criterion. each peptide from the california quail lysozyme was then sequenced by quantitative edman degradation, ... | 2000 | 89864 |
| epidermal hyperplasia in the incubation patch of the california quail, lophortyx californicus, in relation to pituitary prolactin content. | | 1969 | 5769938 |
| effect of prolactin and progesterone on gonads of breeding california quail. | | 1969 | 5770093 |
| adrenal responses of california quail subjected to various physiologic stimuli. | | 1959 | 13634021 |
| lophortofilaria californiensis n.g., n.sp. (filarioidea, dipetalonematidae) from california quail, lophortyx californicus, with notes on its microfilaria. | | 1956 | 13295890 |
| first record of a louse fly, stilbometopa impressa (bigot), and new host for microlynchia pusilla (speiser) (hippoboscidae) from the cape region, baja california sur, méxico. | nine of thirty california quail (callipepla californica achrustera) captured in autumn of 1992, 17 km west of la paz, baja california sur, méxico, were parasitized by louse flies. we identified eight microlynchia pusilla and three stilbometopa impressa from 30 quails in the ratio of 2.75:1. these are the first records of s. impressa for cape region and the first time either fly has been reported from the california quail in baja california sur. | 1996 | 8722274 |
| association of the anti-hen egg lysozyme antibody hyhel-5 with avian species variant and mutant lysozymes. | the energetics of association of the murine anti-hen egg lysozyme antibody hyhel-5 with bobwhite quail lysozyme, california quail lysozyme, and the arg45-->lys mutant of hen egg lysozyme was characterized by isothermal titration calorimetry. the association of each lysozyme with hyhel-5 is enthalpically driven in the temperature range 10 degrees c to 37 degrees c. the calorimetric results indicate that the salt-links between arg45 and arg68 of hen egg lysozyme and gluh50 on the hyhel-5 paratope ... | 1997 | 9252107 |
| exposure of california quail to organophosphorus insecticides in apple orchards in the okanagan valley, british columbia. | we studied the exposure and effect of the organophosphate insecticides azinphos-methyl and diazinon on adult california quail (callipepla californica) in an apple orchard in the okanagan valley, british columbia. cholinesterase activity was measured in plasma samples (n = 65) collected from 54 individuals either prior to spraying, immediately (< 24 hours) or 10 days after three spray events. mean plasma cholinesterase levels declined significantly (p < 0.05, n = 12) to 61% of pre-spray mean acti ... | 2001 | 11280971 |
| adaptive evolution in an avian reproductive protein: zp3. | proteins involved in reproduction appear to be evolving adaptively across taxa. this rapid evolution is thought to be the result of forces involved in sexual selection. one of the most often suggested of these forces is sexual conflict involving sperm competition and polyspermy avoidance. bird species offer a unique opportunity to test this hypothesis since the avian egg coat tolerates physiological polyspermy, or the penetration of multiple sperm during fertilization, without negative effects o ... | 2007 | 17909693 |
| phytoestrogens and avian reproduction: exploring the evolution and function of phytoestrogens and possible role of plant compounds in the breeding ecology of wild birds. | phytoestrogens are secondary plant compounds, which can act to mimic estrogen and cause the disruption of estrogenic responses in organisms. although there is a substantial body of research studying phytoestrogens, including their mechanisms of estrogenic effects, evolution, and detection in biological systems, little is known about their ecological significance. there is evidence, however, that an ecological relationship involving phytoestrogens exists between plants and animals-plants may prod ... | 2009 | 19559809 |
| dynamic shifts in social network structure and composition within a breeding hybrid population. | mating behaviour and the timing of reproduction can inhibit genetic exchange between closely related species; however, these reproductive barriers are challenging to measure within natural populations. social network analysis provides promising tools for studying the social context of hybridization, and the exchange of genetic variation, more generally. we test how social networks within a hybrid population of california callipepla californica and gambel's quail callipepla gambelii change over d ... | 2020 | 32772372 |