Helminth parasites of California quail (Lophortyx californicus) from the Okanagan Valley, British Columbia

1970 ◽  
Vol 48 (4) ◽  
pp. 741-744 ◽  
Author(s):  
R. E. Chandler

One hundred and thirty-seven California quail (Lophortyx californicus) were collected from the Okanagan Valley of British Columbia and examined for helminth parasites during the summers of 1965 and 1966. The following helminth species were found parasitizing California quail from four study areas: two cestodes, Rhabdometra odiosa and Choanotaenia infundibulum, and one nematode, Acuaria spinosa.R. odiosa was recovered from quail from all areas; the other two species were less common and more restricted in distribution. The frequency of infection for R. odiosa was 53.8% in adult quail and 45.8% in juvenile quail. Intensity of infection for R. odiosa was 13.5 specimens from adult and 22.4 from juvenile quail. For C. infundibulum the frequency was 1.5% from adult and 9.7% from juvenile quail; intensity was 2 and 1.7 specimens from adult and juvenile quail respectively. A. spinosa was recovered from three adult quail in 1965; none were found in 1966. Neither C. infundibulum nor A. spinosa has previously been reported from California quail.

1969 ◽  
Vol 47 (4) ◽  
pp. 645-648
Author(s):  
Eugene M. Liburd

A survey of the incidence of coccidia in California quail (Lophortyx californicus) in the Okanagan Valley of southcentral British Columbia was conducted in the summers of 1965 and 1966. Seventy-three percent of 85 quail were infected with oocysts of Eimeria (Protozoa: Eimeriidae). The incidence of infection was higher in the adult (81%) and juvenile (79%) quail than in the immatures (40%). The incidence of infection seems to be correlated with the breeding phenology of the quail. The intensity of infection was higher in the immatures and juveniles than in the adults. No significant differences occurred in the incidence of infection between the sexes and the four study areas. There were monthly variations, with the lowest incidence occurring in June and the highest in August. No mortality or morbidity caused by coccidiosis was observed.


Author(s):  
S. Mukaratirwa ◽  
M.P. Khumalo

A total of 79 chickens were randomly collected from 4 rural localities and processed to detect the presence of helminth parasites and their prevalences. Sixteen helminth species comprising 12 nematode and 4 cestode species were recorded from the 4 localities. Syngamus trachea and Cyathostoma spp. were the only helminth species recovered from the respiratory tract and the rest of the helminth species were from the gastrointestinal tract. The most prevalent nematode species across the 4 localities were Heterakis gallinarum (prevalence range 80-94.4 %), Gongylonema ingluvicola (43.3-86.7 %), Tetrameres americana (53.3-66.7 %) and Ascaridia galli (22.2-43.8 %) and for cestode species, Raillietina tetragona(16.7-40 %) and Skrijabinia cesticillus (3.3-13.3 %) were the most prevalent in that order.Heterakis gallinarum and T. americana had the highest intensity of infection in chickens acrossall the rural areas compared with other helminth species. There was no significant difference (P > 0.05) observed in the sex distribution for As. galli, Baruscapillaria obsignata (syn. Capillaria obsignata), Eucoleus annulatus (syn. Capillaria annulata), Eucoleus contortus (syn. Capillaria contorta) and Subulura suctoria among the 4 rural areas. However, a significant difference (P<0.05) was observed in the intensity of infection of both males and females for H. gallinarum and T. americana across the 4 localities studied. Tetrameres americana, A. galli, C. obsignata and C. annulata had prevalence and number of females higher than that of males, while H. gallinarum showed the opposite. Prevalence of H. gallinarum and T. americana as determined by faecal egg count were much lower compared with the prevalence as determined by post mortem examination, confirming the limitation of using faecal samples in determining the prevalence of gastrointestinal helminth parasites in chickens.


1959 ◽  
Vol 39 (2) ◽  
pp. 183-186 ◽  
Author(s):  
T. B. Lott

Small bitter cherry was found in the Okanagan Valley of British Columbia in 1940, and was recognized as being different from little cherry in the Kootenay area of British Columbia and buckskin in California. Diseases similar to small bitter cherry were found in the northwestern states from 1942 to 1948 and were shown to be caused by the virus of western X-disease. Extensive surveys in British Columbia showed that small bitter cherry occurs only in the southern part of the Okanagan Valley and always in close proximity to western X-disease in peach. Small bitter cherry was inoculated into 48 peach seedlings and into 15 chokecherry trees. Symptoms of western X-disease appeared in 3 peach seedlings and in 2 chokecherry trees. Symptoms appeared up to 4 years after inoculation. The successful transmissions were obtained from 2 diseased sweet cherry trees. These limited transmissions, taken in conjunction with the other evidence submitted, support the conclusion that small bitter cherry is western X little cherry or a form of that disease.


Author(s):  
Yassir Sulieman ◽  
Azzam Afifi ◽  
Higazi M. Awad ◽  
Theerakamol Pengsakul

Sixty-nine subdesert toads, Amietophrynus (Bufo) xeros, were collected in Shendi, Sudan, from August to November 2014, and examined for the first time for the presence of internal helminth parasites. Sixty-seven (97.1%) of the toads were found infected with one or more helminth species including, four Nematoda: Aplectanamacintoshii, Rhabdiasbufonis, Strongyloidesprokopici, and Oswaldocruzia sp.; one Trematoda: Mesocoelium sp.; one Cestoda: Lanfrediella sp. A higher prevalence and intensity of infection was found in male toads compared with females, and old toads were found to harbor a higher prevalence and intensity of infection when compared to younger ones. However, neither of these differences was statistically significant. In addition, there were no significant correlations found between the gender of the toads examined and either the prevalence or intensity of infection of any of the helminth species. Likewise, the prevalence and intensity of infection of the helminth species were not significantly correlated with the snout-vent length of the toads.


1993 ◽  
Vol 67 (2) ◽  
pp. 115-122 ◽  
Author(s):  
J. M. Behnke ◽  
C. Barnard ◽  
J. L. Hurst ◽  
P. K. McGregor ◽  
F. Gilbert ◽  
...  

AbstractThe results of a 5 year study of helminth parasites of Mus spretus, are reported. Six nematode and 5 cestode species were identified but no helminth showed 100% prevalence in M. spretus, the most commonly encountered nematode and cestode species being Syphacia obvelata (46·6%) and Taenia taeniaeformis (22·4%). Among the more unusual helminth species identified was Eucoleus bacillatus, a capillariid nematode inhabiting the stomach musculature. This species was identified in 3 of the 5 years of the study. The results are discussed in the broader context of previous studies and the epidemiology of rodent helminth infections in general.


2017 ◽  
Vol 51 ◽  
pp. 242-250
Author(s):  
M. V. Dulin

Tetralophozia setiformis is a widespread species occurring usually without organs of sexual and asexual reproduction. Gemmae of Tetralophozia setiformis were observed for the second time in Russia and Eurasia in the Northern Urals, Komi Republic. They form compact masses over upper leaves. The compact masses consist largely (70 %) of immature gemmae. Description of gemmae and gemmiparous shoots from the Northern Urals and their comparison with those from the other known localities, namely British Columbia (Canada) and the Murmansk Region (European Russia) were carried out. The gemmiparous plants of T. setiformis from the Northern Urals have approximately the same width as plants without gemmae but they are shorter. The leaves of gemmiparous plants from the Northern Urals are similar to leaves of gemmiparous plants from British Columbia. The leaf shape in upper part of the gemmiparous shoots varies from the typical to ± modified from gemmae production. These leaf shape transitions include reduction of leaf size and lobe number from 4 to 2–3, suppression of development and disappearance of characteristic teeth at the base of sinus. Gemmae size (17 × 22 μm) of plants from the Northern Urals is within variability recorded for plants from the Murmansk Region and British Columbia.


1942 ◽  
Vol 1 (3) ◽  
pp. 19-32
Author(s):  
H. Barnett

Much has been written of William Duncan, "the Apostle of Alaska", who came to the coast of northern British Columbia in 1857 as a missionary to the Tsimshian Indians. Although he deplored it, in the course of his sixty years' residence in this area controversy raged around him as a result of his clashes with church and state, and his work has been the subject of numerous investigations, both public and private. His enemies have called him a tyrant and a ruthless exploiter of the Indians under his control; and there are men still living who find a disproportionate amount of evil in the good that he did, especially during the declining years of his long life. On the other hand, he has had ardent and articulate supporters who have written numerous articles and no less than three books in praise of his self-sacrificing ideals and the soundness of his program for civilizing the Indian.


2020 ◽  
Vol 152 (4) ◽  
pp. 415-431
Author(s):  
Susanna Acheampong ◽  
Etienne Lord ◽  
D. Thomas Lowery

AbstractSpotted-wing drosophila, Drosophila suzukii, (Matsumura) (Diptera: Drosophilidae), has become a serious pest of soft fruit in the Okanagan Valley of British Columbia, Canada since its detection in 2009. The study was conducted to determine the distribution of D. suzukii and damage levels in grapes. Apple cider vinegar-baited traps placed in table and wine grape (Vitis vinifera Linnaeus; Vitaceae) vineyards during 2011–2013 demonstrated that D. suzukii was numerous in all sites, with earliest emergence and highest numbers recorded in 2013. Drosophila suzukii were reared from intact and damaged table grapes and damaged wine grapes collected from the field, but not from intact wine grapes. Drosophila suzukii were reared in low numbers in 2011 from intact fruit of 11 wine grape cultivars exposed artificially in the laboratory. Susceptibility of intact wine grapes under laboratory conditions in 2011 when sour rot was widespread might relate in part to undetected infections of berries due to weather conditions. Identification of Drosophila Fallén species revealed that D. suzukii comprised a small portion of the total. Our results demonstrate that healthy wine grapes in the Okanagan Valley of British Columbia are largely undamaged by D. suzukii, while certain table grape cultivars should be protected from attack.


2011 ◽  
Vol 48 (2) ◽  
pp. 108-115 ◽  
Author(s):  
M. Popiołek ◽  
B. Rozenblut-Kościsty ◽  
M. Kot ◽  
W. Nosal ◽  
M. Ogielska

AbstractParasitic fauna of water frogs was mainly studied in the second half of the 20th century. However, these studies were done without differentiation into species and hybrids and pooled the 3 taxa as “water frogs” or “green frogs”. The aim of this study was to make an inventory of helminth species as well as their prevalence and intensity of infection in the two parental species (Pelophylax ridibundus and P. lessonae) and the hybrid (P. esculentus) of water frogs from 3 big populations composed of hundreds or thousands of individuals inhabited natural and seminatural landscapes in Poland. Eight helminth species were found: Polystoma integerrimum, Diplodiscus subclavatus, Opisthoglyphe ranae, Gorgodera cygnoides, Haematoloechus variegatus, Oswaldocruzia filiformis, Cosmocerca ornata and Acanthocephalus ranae. The results were compared with data from other, polish and European studies. Additionally we compared the level of infection among water frog taxa.


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