The Introduction and Present Status of California Quail in the Okanagan Valley of British Columbia

The Condor ◽  
1965 ◽  
Vol 67 (1) ◽  
pp. 61-66
Author(s):  
Victor Lewin
Keyword(s):  
British Columbia ◽  
Present Status ◽  
California Quail ◽  
Okanagan Valley

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
Keyword(s):  
British Columbia ◽  
Helminth Species ◽  
The Other ◽  
Helminth Parasites ◽  
Intensity Of Infection ◽  
California Quail ◽  
Okanagan Valley

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.

Incidence of coccidia in California quail (Lophortyx californicus) from the Okanagan Valley, British Columbia

1969 ◽  
Vol 47 (4) ◽  
pp. 645-648
Author(s):  
Eugene M. Liburd
Keyword(s):  
British Columbia ◽  
Breeding Phenology ◽  
Intensity Of Infection ◽  
California Quail ◽  
Monthly Variations ◽  
Okanagan Valley

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.

Monitoring of Drosophila suzukii (Diptera: Drosophilidae) in Okanagan Valley vineyards, British Columbia, Canada, and assessment of damage to table and wine grapes (Vitaceae)

2020 ◽  
Vol 152 (4) ◽  
pp. 415-431
Author(s):  
Susanna Acheampong ◽  
Etienne Lord ◽  
D. Thomas Lowery
Keyword(s):  
British Columbia ◽  
Weather Conditions ◽  
Wine Grape ◽  
Drosophila Suzukii ◽  
Wine Grapes ◽  
Apple Cider ◽  
Table Grapes ◽  
Soft Fruit ◽  
Grape Cultivars ◽  
Okanagan Valley

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.

Evidence for "Caribooan Orogeny" in the Southern Okanagan Region of British Columbia

1972 ◽  
Vol 9 (12) ◽  
pp. 1693-1702
Author(s):  
John V. Ross ◽  
William C. Barnes
Keyword(s):  
British Columbia ◽  
Sedimentary Rocks ◽  
Late Paleozoic ◽  
Deformational History ◽  
Exposed Part ◽  
Strong Deformation ◽  
Paleozoic Rocks ◽  
Okanagan Valley

A sequence of non-metamorphosed, little deformed, fossiliferous, sedimentary rocks, near Keremeos, southern British Columbia, unconformably overlies rocks having a history similar to that of the Vaseaux Formation, the most westerly exposed part of the Shuswap Complex of the southern Okanagan Valley. Fossils from the younger sequence have a late Mississippian – early Pennsylvanian age.This part of the southern Okanagan region has a deformational history that is pre-mid-Carboniferous and likely related to the Caribooan orogeny. This is in contrast to Late Paleozoic rocks at northern Okanagan localities and elsewhere in British Columbia that have under-gone strong deformation of probably Mesozoic age.

K–Ar and Fission Track Geochronometry of an Eocene Thermal Event in the Kettle River (West Half) Map Area, Southern British Columbia

1975 ◽  
Vol 12 (5) ◽  
pp. 836-843 ◽  
Author(s):  
G. A. Medford
Keyword(s):  
British Columbia ◽  
Abrupt Change ◽  
Fission Track ◽  
Apatite Fission Track ◽  
Thermal Event ◽  
South Central ◽  
Early Tertiary ◽  
Okanagan Valley

The Okanagan and Similkameen plutonic complexes west of the Okanagan Valley of south-central British Columbia yield K–Ar dates that range from 185 to 133 m.y. East of the Okanagan Valley Shuswap gneisses into which the plutonics intrude, and which may be as old as pre-midCarboniferous in age yield K–Ar dates between 59.9 and 47.4 m.y. This abrupt change, which approximately coincides with the Okanagan Valley, is a consequence of an intense thermal event in the early Tertiary which has reset K–Ar dates in the gneisses at shallow depths. Comparison of K–Ar, sphene and apatite fission track dates demonstrates that the heating affected the plutons west of the Okanagan Valley and that cooling of the Shuswap gneisses occurred at a rate in excess of 25 °C. per million years. The scatter observed in the older K–Ar dates of the plutonic complexes could be caused by post-emplacement heating with variable partial argon loss rather than by separate magmatic events. Thus, only the oldesl K–Ar dates obtained from the plutons may be significant as minimum ages for emplacement.

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