| 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 |
| helminth community of scaled quail (callipepla squamata) from western texas. | forty-eight scaled quail (callipepla squamata) were collected during august 2002 at elephant mountain wildlife management area in brewster county, texas, and examined for helminths. eight species of helminths were found (5 nematodes and 3 cestodes), representing 2,811 individuals. of these species, gongylonema sp., procyrnea pileata, and choanotaenia infundibulum are reported from scaled quail for the first time. prevalence of aulonocephalus pennula, gongylonema sp., oxyspirura petrowi, physalop ... | 2007 | 17436967 |
| understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models. | avian conservation efforts must account for changes in vegetation composition and structure associated with climate change. we modeled vegetation change and the probability of occurrence of birds to project changes in winter bird distributions associated with climate change and fire management in the northern chihuahuan desert (southwestern u.s.a.). we simulated vegetation change in a process-based model (landscape and fire simulator) in which anticipated climate change was associated with doubl ... | 2011 | 21535146 |
| multiyear survey of coccidia, cryptosporidia, microsporidia, histomona, and hematozoa in wild quail in the rolling plains ecoregion of texas and oklahoma, usa. | we developed nested pcr protocols and performed a multiyear survey on the prevalence of several protozoan parasites in wild northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) in the rolling plains ecoregion of texas and oklahoma (i.e. fecal pellets, bird intestines and blood smears collected between 2010 and 2013). coccidia, cryptosporidia, and microsporidia were detected in 46.2%, 11.7%, and 44.0% of the samples (n = 687), whereas histomona and hematozoa were undetec ... | 2017 | 27222431 |
| gene discovery, evolutionary affinity and molecular detection of oxyspirura petrowi, an eye worm parasite of game birds. | oxyspirura petrowi appears to be emerging as a nematode parasite that could negatively impact northern bobwhite quail individuals and populations within texas and other regions of the united states. despite this eye worm's potential importance in the conservation of wild quail, little is known about the general biology and genome composition of o. petrowi. to fill the knowledge gap, we performed a small scale random genome sequence survey, sequenced its 18s rrna and the intergenic region between ... | 2013 | 24144118 |
| infection levels of the eyeworm oxyspirura petrowi and caecal worm aulonocephalus pennula in the northern bobwhite and scaled quail from the rolling plains of texas. | northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) have experienced chronic declines within the rolling plains ecoregion of texas. parasitic infection, which has long been dismissed as a problem in quail, has not been studied thoroughly until recently. a total of 219 northern bobwhite and 101 scaled quail from mitchell county, texas were captured and donated from 2014 to 2015, and examined for eyeworm (oxyspirura petrowi) and caecal worm (aulonocephalus pennula) infec ... | 2016 | 27677307 |
| eyeworm infections of oxyspirura petrowi, skrjabin, 1929 (spirurida: thelaziidae), in species of quail from texas, new mexico and arizona, usa. | northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) have been declining steadily throughout much of their historical range over the past few decades. even the rolling plains of texas, historically rich with wild quail and one of the last remaining quail strongholds, has been suffering a population decline, most notably since 2010. gambel's quail (callipepla gambelii) have also been experiencing their own decline throughout their respective range, but not as significant ... | 2016 | 27411757 |
| preliminary disease surveillance in west texas quail (galliformes: odontophoridae) populations. | northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) occur throughout northwestern texas and overall population numbers have been declining for the past 30 yr. this decline has been attributed to habitat loss associated with intensive agricultural practices. we propose that disease may be a contributing factor to decline. our findings suggest that west nile virus (wnv) infection may be common in wild quail populations on the rolling plains of northwestern texas. serum s ... | 2013 | 23568922 |
| 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 |
| castration in gambel's and scaled quail: ornate plumage and dominance persist, but courtship and threat behaviors do not. | during the breeding season, testosterone in male birds is often linked to some secondary sexual ornaments, courtship behaviors, and intrasexual aggression. i examined the effect of castration on plumage expression in gambel's quail (callipepla gambelii), a species in which males are highly ornate, and in scaled quail (c. squamata), an unornamented species. using male pairs, each consisting of a castrate and a control, i also assessed whether castration affected (1) the behavior of males, (2) the ... | 2001 | 11161878 |
| northern bobwhite (colinus virginianus) mitochondrial population genomics reveals structure, divergence, and evidence for heteroplasmy. | herein, we evaluated the concordance of population inferences and conclusions resulting from the analysis of short mitochondrial fragments (i.e., partial or complete d-loop nucleotide sequences) versus complete mitogenome sequences for 53 bobwhites representing six ecoregions across tx and ok (usa). median joining (mj) haplotype networks demonstrated that analyses performed using small mitochondrial fragments were insufficient for estimating the true (i.e., complete) mitogenome haplotype structu ... | 2015 | 26713762 |
| a survey of neonicotinoid use and potential exposure to northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) in the rolling plains of texas and oklahoma. | northern bobwhite (quail) (colinus virginianus) and scaled quail (callipepla squamata) populations have declined dramatically in the rolling plains ecoregion of texas and oklahoma (usa). there is rising concern about potential toxicity of neonicotinoids to birds. to investigate this concern, the authors examined crops of 81 northern bobwhite and 17 scaled quail to determine the presence or absence of seeds treated with 3 neonicotinoids (clothianidin, imidacloprid, and thiamethoxam). no treated s ... | 2016 | 26565740 |
| organochlorine pesticides, lead, and mercury in northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) from the rolling plains ecoregion of texas and oklahoma. | northern bobwhite (colinus virginianus) and scaled quail (callipepla squamata) from the rolling plains ecoregion in texas and oklahoma were evaluated for organochlorine pesticides, pb, and hg. of all organochlorine pesticides analyzed, only p,p'-dichlorodiphenyldichloroethylene (p,p'-dde) and p,p'-dichlorodiphenyldichloroethane (p,p'-ddd) were found in a few composite liver samples. similarly, a small fraction of tissue samples had detectable levels of hg (liver and breast) or pb exceeding backg ... | 2015 | 25663380 |
| poxvirus in scaled quail and prevalences of poxvirus-like lesions in northern bobwhites and scaled quail from texas. | prevalences of poxvirus-like lesions were determined for 177 northern bobwhites (colinus virginianus) and 24 scaled quail (callipepla squamata) trapped in southern texas from 1976 to 1979 and for 190 northern bobwhites and 105 scaled quail shot at five locations in southern texas from 1980 to 1981. none of the northern bobwhites trapped in 1976-1977 was infected, but 54% of the trapped scaled quail were infected; 17% of the northern bobwhites and 34% of the scaled quail shot in 1980-1981 had pox ... | 1988 | 2836637 |
| nasal mites of the subfamily speleognathinae (ereynetidae) from birds in texas. | nasal mites of the subfamily speleognathinae were recovered from several species of birds in texas. new host records include ophthalmophagus striatus (crossley) 1952 from columbigallina passerina, boydaia clarki fain 1963 from callipepla squamata, boydaia falconis fain 1956 from falco sparverius, and boydaia tyrannus ford 1959 from myiarchus cinerascens. also recovered was astrida coccyzae pence 1972 from coccyzus americanus. boydaia pheucticola sp. n. from pheucticus melanocephalus is described ... | 1976 | 932921 |
| incorporating abundance information and guiding variable selection for climate-based ensemble forecasting of species' distributional shifts. | ecological niche models (enms) have increasingly been used to estimate the potential effects of climate change on species' distributions worldwide. recently, predictions of species abundance have also been obtained with such models, though knowledge about the climatic variables affecting species abundance is often lacking. to address this, we used a well-studied guild (temperate north american quail) and the maxent modeling algorithm to compare model performance of three variable selection appro ... | 2017 | 28886075 |
| annotated draft genome assemblies for the northern bobwhite (colinus virginianus) and the scaled quail (callipepla squamata) reveal disparate estimates of modern genome diversity and historic effective population size. | northern bobwhite (colinus virginianus; hereafter bobwhite) and scaled quail (callipepla squamata) populations have suffered precipitous declines across most of their us ranges. illumina-based first- (v1.0) and second- (v2.0) generation draft genome assemblies for the scaled quail and the bobwhite produced n50 scaffold sizes of 1.035 and 2.042 mb, thereby producing a 45-fold improvement in contiguity over the existing bobwhite assembly, and ≥90% of the assembled genomes were captured within 1313 ... | 2017 | 28717047 |
| schistosomiosis in a scaled quail. | | 1980 | 7451341 |
| a suggested method for estimating pre-hunting season status of scaled quail populations. | | 1950 | 17758030 |
| behavioral modifications lead to disparate demographic consequences in two sympatric species. | life-history theory suggests species that typically have a large number of offspring and high adult mortality may make decisions that benefit offspring survival in exchange for increased adult risks. such behavioral adaptations are essential to understanding how demographic performance is linked to habitat selection during this important life-history stage. though studies have illustrated negative fitness consequences to attendant adults or potential fitness benefits to associated offspring beca ... | 2019 | 31463020 |
| [helminth fauna in a semi-arid host species - scaled quail (callipepla squamata)]. | helminths were examined from 145 scaled quail (callipepla squamata) collected during the 2012-2013, 2013-2014 and 2014-2015 hunting seasons from a semi-arid region of texas that spans four ecoregions. helminth infracommunities were species poor, averaging 1.7 (range 1-4) species. six species occurred within the component community of which one (oxyspirura petrowi) is known to be pathogenic to quail. aulonocephalus pennula was most abundant (9991 individuals, 95% of total) followed by o. petrowi ... | 2019 | 31331406 |
| avian parental behavior and nest success influenced by temperature fluctuations. | behavioral adjustments and parental decisions during reproduction can influence the thermal environment at nests, yet our understanding into how environmental factors (i.e., temperature and precipitation) constrain an adult's ability to balance self-maintenance and incubation demands is limited. to expand our understanding of how species respond to environmental factors, we investigated the reproductive ecology of two ground-nesting species (northern bobwhite [colinus virginianus] and scaled qua ... | 2018 | 29801620 |
| mesocestoides sp. in wild northern bobwhite ( colinus virginianus) and scaled quail ( callipepla squamata). | mesocestoides spp. have a cosmopolitan distribution with zoonotic potential. mesocestoides tetrathyridia were found under the pericardial sac, on the surface of the crop, and in the peritoneal cavity of a hunter-harvested northern bobwhite ( colinus virginianus) and a scaled quail ( callipepla squamata) collected during the 2016-17 quail hunting season in northwest and southern texas, us respectively. molecular analysis indicated that the tetrathyridia from the birds likely belonged to an undesc ... | 2018 | 29595383 |